CD3610 Acdc Mo 7 Medium Dc

User Manual: CD3610

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Page Count: 92

Medium DC Motors

CD180 to CD6900 Frame

Medium DC Motors

GE Support Services

• Overview & History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128

• Products/Types—(Frames) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

• Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

• Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

• Parts & Exploded Views

– Kinamatic I–Type CD, Frames 210A to 680A . . . . . . . . . . . . .135

– Kinamatic II–Type CD, Frames 180AT to 500AT and

Frames 2512AT, 2513AT, 2812AT, 2813AT . . . . . . . . . . . . . . .137

– Types CD and MCD, Frames 4300 to 4700 . . . . . . . . . . . . . . .145

– Types CD and MCD, Frames 6000 to 6200, 6700 to 6900 . . .151

– Types CD and MCD, Frames 5000 to 9000

and Type CD, Frames 580 to 680 . . . . . . . . . . . . . . . . . . . . . . .155

– Type MD, Frames 402 to 423 . . . . . . . . . . . . . . . . . . . . . . . . . . .159

– Type MD, Frames 602 to 624 . . . . . . . . . . . . . . . . . . . . . . . . . . .163

– Type MD, Frames 802 to 828 . . . . . . . . . . . . . . . . . . . . . . . . . . .170

– Excavator Motor Generators–Type CDS, Frames 320 to 8000

and Types MPC and MCF, Frames 500 to 900 . . . . . . . . . . . .182

– Electric Vehicle–Type BT, Frames 1300 to 2300 . . . . . . . . . .189

• Maintenance Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190

• Standard Brushholders with Springs and Springs Only . . . . . .195

• Commutator Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .196

• Field Modifications/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . .202

Medium DC

128 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Overview and History of Medium DC Motors

GE DC motors rated between 1 and 2500 horsepower, as well as generator ratings up to over 1300KW are

manufactured in Dothan, AL, Monterrey, Mexico and Peterborough, Ontario.

The basic DC motor design is the same, that is, there is a stationary magnetic field structure and a rotating

element. The rotating portion, the armature, is supported by a bearing structure.

The field frame consists of a ferrous frame with coils to provide for magnetic coupling of flux to the

armature. There are main coils in the field to provide the magnetics. Comm coils are also used.

The armature has a shaft, coils to provide the magnetics to interact with the field coils, and a commutator.

The commutator enables the coils on the rotating armature to be electrified. The brushes give a rotating

connection between the armature and the power source.

The bearings are supported by bearing brackets or endbells. The bearings themselves can be ball

bearings, roller bearings, or sleeve bearings. Sleeve bearings can be Bronze or Babbitt.

These basic elements are common to all DC motors. It is important to understand their relative positions

when locating parts. There are also accessories which are added to the motor to improve performance,

provide control data, and to protect the motor.

Medium DC Motors 129

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GE Support Services

7–Medium DC

Products/ Types (Frames)

CD180A/AT–680A

Kinamatic Line Industrial Motors

CD1000/1700

Early Motors/Some Parts

CD5000/9000

Obsolete Motors/Parts Generally Available

MD400/600/800

Mill Drive and Excavator Motors, Parts available on 800,

some 400 and 600

GTE and LY

Motors and Generators for the elevator industry

Lift Truck, Electric vehicle motors, Mining Motors

BY, CY

Special Purpose Motors, Roll Grinder Transit

CD4300/4700

Industrial Drive Motors, High HP

CD6200/6700

Industrial Drive Motors, High HP

Dynomometer

Device to Measure Engine Performance or Motor Output

Motor Type Market Application

CD180AT

MOTOR TYPE

Accessory

Mounting Face

Radiant Heat

Process (RHP)

Vacuum Pressure

Impregnation (VPI)

2 Cycles

Adjustable

Fixed

Cast Equalizer Comm End

Coil Assembly and Support

Glass Banded

(w/Viton Sealant)

Interlocking

Molded

Cap and Cone

(V Ring)

Compensated Pole

Face Wadings

Laminated

Round

Split

Class F

Class H

TIG Welded

Riser Construction

TREC Field Coils

CD210–320AT

CD360–500AT, 5010

CD2512–2813AT

CD6000–6200

CD6700–6900

MD802–812

MD814–826

When specified

✔

✔✔

✔

✔✔

✔

With Viton sealant and polyurethane

overcoat

Optional

Not available on TEFC, CD210AT

Armature

Treatment Brush

Riggings Commutators Frames Insulation

130 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Medium DC Motors Model Numbers

Typical Format: 5CD NNN LL NNN L NNN . . . . . . . . . . N = Number; L = Letter

Model Number Frame Design

Examples: 5CD152GA001B002 CD218AT KII

5CD194SA005A007 CD368AT KII

5CD435LA805C801 CD4366 CD4000

Others: 5CD505G329 CD505 KI

5BY444A27 CD3610 LOW INERTIA

5CY949E9 CY949AY ROLL GRINDER

5MD160D100000AB MD816AE MD

5AM604B218 AM604 AMPLIDYNE

5CDS365G322 CDS365AY EXCAVATOR

5MD824C81 MDP824 EXCAVATOR MD

223X782CF MCF868C EXCAVATOR GENERATOR

5SDE2635A100 SDE2600 SYNCHRONOUS MOTOR

Model Numbers

The history of the GE model numbering system is actually quite old dating back to the early 1900’s.

Today’s system has evolved from many years of experience. Learning from the past, it became quite clear

to GE a system was needed to identify motor characteristics, ratings, and accessories with the model

number alone. This system was first devised and implemented around 1970. An example of a model

number would be 5CD194HA001A001. About 75% of our replacement requests are of this format.

Another format for model numbers following this pattern:

5CD14D02A112003 5CD580G12AB

These types of model numbers have been in use since about 1960 and are the second most frequent style

seen on a daily basis representing about 15% of our requests. With these two types of model numbers, it is

impossible to specify completely which motor is being requested without a serial number.

About 5% of the replacement requests have model numbers with format:

33A1557 5B225A50

Every motor is also assigned a serial number which is unique to that motor. Serial numbers for GE DC

motors are one of two forms depending on the date the motor was built. The years between 1930 and

1956, serial numbers took the form of a seven digit code. Theses generally look like this:

7283200 7079100 2355299

2164851 1839846 1590324

From about 1956 on to the present, serial numbers took the form of LL – N – NNN – LL where L = Letter

and N = Number. These generally look like this:

GC–1–510–LC LL–N–NNN–LL

CK–1–1085–EK the first N is always one of the follow

RE–1–471–RE 1, 2, or 8

AR–2–420–AR

For parts identification, the last two letters are dropped from this format. For instance, GC–1–510 would

be typed in for C–1–510–LC.

Medium DC Motors 131

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GE Support Services

7–Medium DC

Model Number Also known as:

5AM602B23 5AM602B23

5AN102B1G02 AN102B1G02

5BT1328B7 BT1328B7

5BY435A65 5BY435A65

5BT2379M2 5BT2378M2

5CD14E06A36630 14EO6A36630

5CD123WE001B 5CD123WE001B

5CD144WA801A800 5CD144WA801A800

5CD25D26G001513 25D26G001513

5CD362MA001A001 5CD362001A001

5CD432EA001C800 5CD432EA001C800

5CD256G177 5CD256E177

5CD684E143BE 5CD684E143BE

5CDS326G230 5CD326G230

5CY1031E1 5CY1032E1

5GTE20D03A1 5GTE20D03A1

5MD020D114100SD 020D1141100SD

5MD824A3 5MD824A3

34B615 34B615

36X958083 36X958083

Model Numbers

and Their Equivalents

When having difficulty with a model: 1. drop 5 and impute, 2. drop 5 and first letter and impute, 3. drop

5 and first two letters and impute. In many cases, it is easier to inquire in the model list, E.G.

5CD184TA001A rather than the entire model number.

General Notes

Kinamatic II Models, for example, 5CD184TA001A001, the full number is the model list which includes

accessories, covers, thermostats, and so forth. These make the unit unique. The base number, E.G.

5CD184TA001A, is the machine list, which list the field coils, armature, bearings, brushrigging, and so

forth. Armature coils are found on the armature list on the machine list.

MD800 motors are imputed with the 5MD dropped from the model. The last two letters indicate the

ventilation and some other accessories. The basic number, without the 5MD and the two letter suffix has

most of the data that is normally requested.

When listing part numbers, always line the extension on the space 12, 13 and 14.

For example: _ _ _ _ _ _ _ _ _ _ _ _ XXX XXX = appropriate group or part number.

Serial numbers are entered with dashes.

Kinamatic II Design CD4000 Line CD6000 Line

132 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

MODEL NUMBER FRAME MODEL NUMBER FRAME MODEL NUMBER FRAME

PREFIX SIZE PREFIX SIZE PREFIX SIZE

5CD122 CD146 5CD431 D–K CD4350 5CD601 D–K CD6050

5CD123 CD148 5CD431 L–N CD4354 5CD601 L–M CD6054

5CD124 CD149 5CD432 D–K CD4352 5CD602 D–K CD6052

5CD125 CD1412 5CD432 L–N CD4357 5CD602 L–M CD6057

5CD142 CDL182AT 5CD433 D–K CD4355 5CD603 D–K CD6055

5CD143 CD186AT 5CD433 L–N CD4359 5CD603 L–M CD6059

5CD144 CDL186AT 5CD434 D–K CD4358 5CD604 D–K CD6058

5CD145 CD189AT 5CD434 L–N CD4363 5CD604 L–M CD6063

5CD152 CD218AT 5CD435 D–K CD4362 5CD605 D–K CD6062

5CD153 CD219AT 5CD435 L–N CD4366 5CD605 L–M CD6066

5CD154 CD2110AT 5CD442 E–K CD4454 5CD612 E–K CD6154

5CD163 CD258AT 5CD442 L–N CD4463 5CD612 L–N CD6163

5CD164 CD259AT 5CD443 E–K CD4457 5CD613 E–K CD6157

5CD173 CD287AT 5CD443 L–N CD4465 5CD613 L–N CD6165

5CD174 CD288AT 5CD444 E–K CD4460 5CD614 E–K CD6160

5CD183 CD327AT 5CD444 L–N CD4468 5CD614 L–N CD6168

5CD184 CD328AT 5CD445 E–K CD4464 5CD615 E–K CD6164

5CD192 CD365AT 5CD445 L–N CD4473 5CD615 L–N CD6173

5CD193 CD366AT 5CD446 E–K CD4469 5CD616 E–K CD6169

5CD194 CD368AT 5CD446 L–N CD4477 5CD616 L–N CD6177

5CD203 A CDL407AT 5CD453 E–K CD4559 5CD623 E–K CD6259

5CD203 B–R CD407AT 5CD453 L–N CD4568 5CD623 L–M CD6268

5CD203 S–Y CDL407AT 5CD454 E–K CD4562 5CD624 E–K CD6262

5CD204 A CDL409AT 5CD454 L–N CD4570 5CD624 L–M CD6270

5CD204 B–R CD409AT 5CD455 E–K CD4566 5CD625 E–K CD6266

5CD204 S–Y CDL409AT 5CD455 L–N CD4575 5CD625 L–M CD6275

5CD222 A–T,X,Y CD504AT 5CD456 E–K CD4571 5CD626 E–K CD6271

5CD222 U–W CDL504AT 5CD456 L–N CD4580 5CD626 L–M CD6280

5CD223 A–T,X,Y CD506AT 5CD463 H–M CD4670 5CD673 G–N CD6766

5CD223 U–W CDL506AT 5CD463 N–R CD4674 5CD673 P CD6771

5CD224 A–T,X,Y CD508AT 5CD464 H–M CD4673 5CD674 G–N CD6770

5CD224 U–W CDL508AT 5CD464 N–R CD4678 5CD674 P CD6776

5CD226 CD5010ATZ 5CD465 H–M CD4677 5CD675 G–N CD6774

5CD362 CD2512AT 5CD465 N–R CD4681 5CD675 P CD6778

5CD363 CD2513AT 5CD466 H–M CD4682 5CD676 G–N CD6779

5CD372 CD2812AT 5CD466 N–R CD4686 5CD676 P CD6785

5CD373 CD2813AT 5CD473 K–N CD4773 5CD683 H–N,W CD6873

5CD473 P–T CD4781 5CD683 P,R,S CD6882

5CD474 K–N CD4776 5CD684 H–N,W CD6876

5CD474 P–T CD4784 5CD684 P,R,S CD6885

5CD475 K–N CD4780 5CD685 H–N,W CD6881

5CD475 P–T CD4789 5CD685 P,R,S CD6890

5CD476 K–N CD4785 5CD686 H–N,W CD6887

5CD476 P–T CD4793 5CD686 P,R,S CD6896

5CD477 K–N CD4791 5CD693 L–N CD6977

5CD477 P–T CD4799 5CD693 P–T CD6986

5CD694 L–N CD6981

5CD694 P–T CD6990

5CD695 L–N CD6985

5CD695 P–T CD6996

5CD696 L–N CD6991

5CD696 P–T CD6999

Model Numbers

Medium DC Motors 133

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GE Support Services

7–Medium DC

Serial Numbers are stamped on the nameplate. Model numbers are also on the nameplate. If the

nameplate is gone, the serial number is also metal stenciled into the frame, usually in the general area of

the nameplate. Modern serial numbers are AA–N–NNNN. Older motors can have a scheme NNNNNNN

(seven numbers).

The DC Buyers Guide (GEP387) has the most commonly used motors and accessories.

Please Note the renewal parts accessory guide at the end of this section.

Serial Numbers

Nameplate Info.

CD180AT – 500AT

CD580 –9000

IF@

Base

Speed

VF@

2 Circuit

VF@

1 Circuit

4 Field

Leads Out

IF@

Top

Speed

1 Circuit 1 Circuit

134 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Serial Numbers

Serial numbers are of the form… LL – B – NNN – KK

The letters stand for:

LL Month of year and manufacture...See table

B Place of manufacture...1 = Building 13, Erie, (medium)

2 Building 17, Erie, ( large)

8 Dothan Motor Plant, AL., (small)

NNN Consecutively numbered individual units each month

KK Month and year of shipment....See table.

Example: ZE – 1 – 125 – NF

Indicates—Erie, Medium, Shipped Jan’91

Note: Serial Number is also stamped in the frame, near the nameplate

YEAR

1965

1966

1967

1968

1969

1970

1971

1972

1973

1974

1975

1976

1977

1978

1979

1980

1981

1982

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

1923

1924

1925

1926

1927

1928

1929

1930

1931

1932

1933

1934

1935

1936

1937

1938

1939

1940

1941

1942

1943

1944

1945

1946

1947

1948

1949

1950

1951

1952

1953

1954

1955

1956

1957

1958

1959

1960

1961

1962

1963

1964

Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec

PRIOR

YEARS

Ref. No. Description

1Coil, main and pole

3 Coil, comm and pole

4 Armature

5 Coil, armature

7 Wedge, slot (through CD250A)

8 Strip, slot insulation

11 Shaft, armature (not available for frame

256 and smaller)

12 Commutator

13 § Bracket, bearing

14 § Bearing, ball antifriction

15 § Cap, bearing

16 § Gasket, bearing cap

17 Fan, armature

Ref. No. Description

18 Rigging holder

20 Yoke , brush holder

21 Stud, brush holder

22 Brush holder (with pressure spring)

23 Spring, brush holder

24 Brush, carbon

26 Conduit box

29 Adapter, conduit box (not used on

CD580A & CD680A)

30 Cover, hand hole

32 Monogram (not used on CD580A & CD680A)

34 Gasket, adapter, conduit box

35 § Cartridge, bearing

36 § Baffle, metering plate

37 Hub, fan

38 § Ring, retaining

§Specify whether for drive end or commutator end.

Medium DC Motors 135

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GE Support Services

7–Medium DC

Kinamatic I

Type CD, Frames 210A–680A

Exploded View, Type CD, Frames 215A to L685A

136 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Renewal Parts

As insurance against costly downtime, it is strongly recommended that spare parts be kept on hand in

accordance with the chart below.

Recommended Parts

NUMBER OF DUPLICATE MOTORS IN SERVICE

Description 1 2–4 5–10 10–20 More than 20

WITH OR WITHOUT ELECTRICAL SHOP FACILITIES

Complete Machine . . . . . . . . . 1 2

Drive End Ball Bearing 1 1 1 2 3

Commutator End Ball Bearing 1 1 1 2 3

Brushes (Sets) 2 4 6 8 10

Brush holders (Sets) . . . 1/2 1/2 1 1

Brush holder Spring (Sets) 1/2 1 1 2 2

Main Field Coil and Pole . . . 1 1 2 3

Commutating Field Coil and Pole . . . 1 1 2 3

Armature Complete* . . . 1 1 2 2

Blower vent, motors

Blower motors . . . 1 1 2 2

Filters 2 4 6 8 10

WITH ELECTRICAL SHOP FACILITIES

Shaft** . . . . . . . . . 1 1

Armature Rewinding Supplies . . . 1 1 2 3

*If shop facilities are available the quantity of armatures may be reduced by stocking the armature

parts listed in the second group.

** Shaft not replaceable in diameters 250 and smaller.

Kinamatic I

Type CD, Frames 210A–680A

Medium DC Motors 137

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GE Support Services

7–Medium DC

Kinamatic II

Type CD, Frames 180AT–500AT; Frames 2512AT, 2513AT, 2812AT, 2813AT

Approximate Net Weights*

*Appropriate weights for typical motors in each frame size. Does not

include weights of accessories such as tachometers, blowers, heat

exchangers, etc. For specific weights, refer to certified outline.

Frame Size Armature Weight

lbs. kgs. lbs. kgs.

Motor Weight

CDL182AT

CD186AT

CDL186AT

CD189AT

CD218AT

CD219AT

CD2110AT

CD258AT

CD259AT

CD287AT

CD288AT

CD289AT

CD2811AT

CD327AT

CD328AT

CD365AT

CD366AT

CD368AT

CD3610AT

CD3612AT

CD407AT

CDL407AT

CD409AT

CDL409AT

CD4012AT

CD504AT

CDL504AT

CD506AT

CDL506AT

CD508AT

CDL508AT

CD5010AT

113

130

175

210

158

181

220

260

300

400

530

400

500

780

590

720

890

1200

100

120

140

130

240

180

225

350

265

330

405

545

102

128

162

240

250

280

360

400

500

550

660

790

690

770

750

860

1020

1310

1650

1300

1350

1600

1650

3210

1900

2070

2290

2440

2810

2970

4260

106

114

127

164

183

225

250

300

360

315

350

340

390

465

595

750

590

610

725

750

1460

860

940

1040

1110

1275

1350

1935

Commutator

Diameters (IN INCHES)

Frame New Minimum

CD180AT 2.76 2.62

CD210AT 4.50 4.27

CD250AT 5.00 4.75

CD280AT 5.78 5.49

CD320AT 6.50 6.17

CD360AT 7.50 7.13

CD400AT 8.32 7.92

CD500AT 10.25 9.75

138 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Ref. No. Description Qty.

1 Brush 2

2 Brush Springs 2

3 Bearing C.E. 1

4 Bearing D.E. 1

5 Armature 1

6 Coil & Pole Comm. 2

7 Coil Main 2

8 Bearing Bracket (CE) 1

9 Access Cover 1

10 Brush Rigging 1

11 Armature Fan 1

12 Bearing Bracket (DE) 1

13 Wound Frame Assembly 1

Exploded View, Kinamatic II • CD180AT Frames

Kinamatic II

CD180AT Frames

Ref. No. Description

1 Main Coil and Pole Assembly

3 Comm. Coil and Pole Assembly

4 Armature

5 Armature Coil

7 Slot Wedge (through CD400AT)

8 Slot Insulation (through CD400AT)

11 Armature Shaft and Core Assembly

12 Commutator

12A Balance Rings (used on CD180AT–CD320AT)

13 § Bearing Bracket

14 § Ball Bearing

15 § Bearing Cap

17 Armature Fan

§ Specify whether for drive end or commutator end

Ref. No. Description

18 Brush Rigging (includes complete assembly

for CD180AT)

20 Brushholder Yoke

21 Brushholder Stud (includes Insulator on CD500AT)

22 Brushholder (with Pressure Spring and Clip, if needed)

23 Brushholder Spring

24 Carbon Brush

26 Conduit Box

29 Conduit Box Adapter

30 § Bearing Bracket Covers (specify side, bottom or top)

32 Shaft Cover

34 Conduit Box Gasket

38 Bearing Retaining Ring (used on CD360AT–CD500AT

Drive End Only)

Medium DC Motors 139

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GE Support Services

7–Medium DC

Exploded View, Kinamatic II • CD210AT–CD500AT Frames

Kinamatic II

CD210AT–CD500AT Frames

140 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

5CD14 – (CD1801A) – Example 5CD14E01A900001

Qty. 1 – 36A164935AAG01 – Brush Rigging

Qty. 2 – 36A164933CAG01 – Spring Only

Qty. 2 – 894A506 P01 – Brush

5CD142 – 143 – 144 – 145 – (CD180AT) – Example 5CD143BA001A001

Qty. 1 – 36A167271AAG01 – Brush Rigging

Qty. 2 – 36B467022AA001 – Spring Only

Qty. 2 – 36A167400AAP01 – Brush GE–581 GRADE .375 X 1.00

5CD152 – 153 – 154 – (CD210AT) – Example 5CD152JA003B007

The winding letter determines brush rigging quantities:

A to S – Qty is 2 per motor

T to X – Qty. is 4 per motor

Z – Consult Factory

36A167280AAG01 – Brushholder with Spring

36B467011AA001 – Brushholder only

36B467020AA001 – Spring only – 2.9 lbs. Max. 2.00 lbs Min.

36A167401AAP08 – Brush T–563 Grade .625 x .875 x 1.5 (.70 is min length)

36A167401AAP02 – Brush T–566 Grade Papermill & Extruder

5CD163 – 164 – (CD250AT) – Example 5CD163RA001A014

The winding letter determines brush rigging quantities:

A to N – Qty is 2 per motor

P to W – Qty. is 4 per motor

Z – Consult Factory

36A167280AAG01 – Brushholder with Spring

36B467011AA001 – Brushholder only

36B467020AA001 – Spring only – 2.9 lbs. Max. 2.00 lbs Min.

36A167401AAP08 – Brush T–563 Grade .625 x .875 x 1.5 (.70 is min length)

36A167401AAP02 – Brush T–566 Grade Papermill & Extruder

5CD173 – 174 – (CD280AT) – Example 5CD174RA006A034

The winding letter determines brush rigging quantities:

A to T – Qty is 2 per motor

U to X – Qty. is 4 per motor

Z – Consult Factory

36A167281AAG01 – Brushholder with Spring

36B467012AA001 – Brushholder only

36B467021AA001 – Spring only – 4.75 lbs. Max. 3.0 lbs Min.

36A167402AAP04 – Brush T–563 Grade .75 x 1.25 x 2.0 (.90 is min length)

36A167402AAP02 – Brush T–566 Grade Papermill & Extruder

5CD362 – 363 – (CD2512AT and CD2513AT) – Example 5CD363MA001A001

5CD372 – 373 – (CD2812AT and CD2813AT) – Example 5CD373LA003A007

The winding letter determines brush rigging quantities:

A to P – Qty is 2 per motor

R to X – Qty. is 4 per motor

Z – Consult Factory

36B473004AAG01 – Brushholder only for CD2512 and CD2513

36B473004AAG02 – Brushholder only for CD2812 and CD2813

36C703083AA001 – Spring only – 5.1 lbs. Max. 4.0 lbs Min.

36A171014AAP11 – Brush T–559 Grade 1.00 x 1.25 x 2.6 (1.00 is min length)

36A171014AAP12 – Brush T–566 Grade Papermill & Extruder

Kinamatic II

CD180 to CD500AT

Identification of Brushholders, Springs and Brushes

Medium DC Motors 141



GE Support Services

7–Medium DC

5CD183 – 184 – (CD320AT) – Example 5CD184TA004A010

The winding letter determines brush rigging quantities:

A to R – Qty is 2 per motor

S to Y – Qty. is 4 per motor

X – Qty. is 6 per motor

Z – Consult Factory

36A167281AAG01 – Brushholder with Spring

36B467012AA001 – Brushholder only

36B467021AA001 – Spring only – 4.6 lbs. Max. 3.0 lbs Min.

36A167402AAP04 – Brush T–563 Grade

.75 x 1.25 x 2.0 (.90 is min length)

36A167402AAP02 – Brush T–566 Grade Papermill & Extruder

5CD192 – 193 – 194 – (CD360AT) – Example 5CD193PA007A814

The winding letter determines brush rigging quantities:

D to P – Qty is 4 per motor

B,C,R,S,T,X – Qty. is 8 per motor

U,V,W – Qty. is 12 per motor

Z – Consult Factory

36A160426AAG01 – Brushholder with Spring

36B465476AA001 – Brushholder only

36B465486AA001 – Spring only (86A) – 4.75 lbs. Max. 3.0 lbs Min.

36A164456AAP21 – Brush T–563 Grade .625 x 1.25 x 2.1 (1.06 is min length)

36A164456AAP05 – Brush T–566 Grade Papermill & Extruder

5CD203 – 204 (CD400AT) – Example 5CD203PA001A007

The winding letter determines brush rigging quantities:

D to M – Qty is 4 per motor

B,C,N,P,R – Qty. is 8 per motor

A,S,T,X,Y – Qty. is 12 per motor

u,v,w – Qty. is 16 per motor

Z – Consult Factory

36A160421AAG02 – Brushholder with Spring

36B465471AA001 – Brushholder only

36B465481AA001 – Spring only (81A) – 4.75 lbs. Max. 3.62 lbs Min.

36A164451ABP18 – Brush T–563 Grade .75 x 1.5 x 2.75 (1.5 is min length)

36A164451ABP05 – Brush T–566 Grade Papermill & Extruder

5CD222 – 223 – 224 – 226 – (CD500AT) – Example 5CD224TA010B024

The winding letter determines brush rigging quantities:

F to L – Qty is 4 per motor

D,E,M,N,P – Qty. is 8 per motor

C,R,S,Y – Qty. is 12 per motor

A,B,T – Qty. is 16 per motor

U,V,W – Qty. is 20 per motor

Z – Consult Factory

36A160422AAG02 – Brushholder with Spring

36B465472AA001 – Brushholder only

36B465482AA001 – Spring only (82A) – 5.6 lbs. Max. 4.6 lbs Min.

36A164452AAP21 – Brush T–563 Grade .88 x 1.5 x 3.25 (1.6 is min length)

36A164452AAP05 – Brush T–566 Grade Papermill & Extruder

Correct Spacing of Brushholder

to Commutator

Kinamatic II

CD180 to CD500AT

Identification of Brushholders, Springs and Brushes

142 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Kinamatic II

Standard Bearing Information

The following chart shows

the standard ball bearings

used in Kinamatic motors.

Standard practice for

oversized shafts and/or

oversized ball bearings is to

use the ball bearing size of

the next larger frame (no

oversized bearings or shafts

available in CD5010AY

frame). This chart does not

apply to motors with roller

bearings. Non–standards are

manufactured for special

applications. Therefore, not

all Kinamatic motors follow

the chart below. Refer to GE

Support Services for

non–standard motors.

Standard Bearings for Kinamatic DC Motors

Drive End Comm End

Frame Size GE Part Number GE Part Number

CD140AT 894A605ZJ 005 894A605ZJ 004

CD2512AT / CD2513AT 894A605AB 009 894A605AB 007

CD2812AT / CD2813AT 894A605AB 010 894A605AB 009

CD180AT 894A605ZJ 006 894A605ZJ 006

CD210AT 894A605ZJ 007 894A605ZJ 006

CD250AT 894A605 009 894A605 007

CD280AT 894A605 010 894A605 009

CD320AT 894A605 011 894A605 010

CD360AT 894A605 013 894A605 011

CD400AT 894A605 014 894A605 013

CD504AT / CD508AT 894A605 018 894A605 016

CD5010AY 894A605 022 894A605 018

CD6000 894A605 023 894A605 020

CD6100 894A605 025 894A605 023

CD6200 894A605 027 894A605 025

CD6700 894A605 029 894A605 029

CD6800 894A605 029 894A605 029

CD6900 894A605 031 894A605 031

Renewal Parts Service

The Kinamatic motor is designed for tough industrial applications. Maintain the original performance

standards of the Kinamatic design by using genuine GE renewal parts. Kinamatic renewal parts, such as

main and commutator coils, pole assemblies, and armature coils are produced to original factory

specifications including form fits, materials, and dimensions. A permanently attached stainless steel

nameplate displays the model and serial number, providing all the information needed for ordering.

Parts are available directly from authorized GE parts distributors. For authorized distributor information

or technical support, contact GE Support Services. Also, Repair service is available from authorized GE

service facilities.

Recommended Spare Parts for Frames CD180AT–CD500AT

In an effort to minimize costly downtime, it is recommended that spare parts be kept on hand in

accordance with the chart below:

Number of Duplicate Motors in Service

Description 1 2–4 5–10 10–20 More than 20

With or Without Electrical Shop Facilities

Complete Machine . . . . . . . . . 1 2

Ball Bearing (sets) 1 1 1 2 3

Brushes (Sets) 2 4 6 8 10

Brushholders (Sets) . . . 1/2 1/2 1 1

Brushholder Springs (Sets) 1/2 1 1 2 2

Main Field Coil and Pole . . . 1 1 2 3

Commutating Field Coil and Pole . . . 1 1 2 3

Armature Complete . . . 1 1 2 2

Blower Ventilated, motors

Blower motors . . . 1 1 2 2

Medium DC Motors 143



GE Support Services

7–Medium DC

Typical Weights* Commutator Diameters (in Inches)

Frame Motor (Less Armature Start Min. Wear

Size Accessories)

CD2512AT 500 120 5.30 5.02 0.140

CD2513AT 550 135

CD2812AT 650 160 5.96 5.66 0.150

CD2813AT 750 190

Kinamatic II

Type CD, Frames 2512AT, 2513AT, 2812AT, 2813AT

* Typical weights. For specific weight, see certified outline.

144 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Exploded View, Type CD Frames 2512AT–2813AT

Ref. No. Description Ref. No. Description

1 Armature 37G Bearing Seal, Adapter DE (when specified)

7 Armature Fan 37H Bearing Seal, Rubbing DE (when specified)

7D Armature Baffle 40 Grease Fitting Kit

7G Balance Ring Kit, CE 47 Bearing Preload Spring

7H Balance Ring Kit, DE 50 Brush

8 Armature Rewind Kit 57 Brush Holder

10 Shaft w/Key 57B Brush Holder Spring

12 Commutator (Requires No. 8 Rewind Kit) 72 Comm Coil Kit

31A Bearing, CE 117A Cover, Top CE, Solid

31B Bearing, DE 125 Cover, Brush Holder w/Gasket

32A Bearing Bracket, CE 132 Cover, Opposite Conduit Box

32B Bearing Bracket, DE 140 Conduit Box

34A Bearing Cap, CE 140B Conduit Box Adapter Kit

34B Bearing Cap, DE 150A Coiled Frame

37C Bearing Seal, Labyrinth CE (when specified) 153 Shaft Thimble

37D Bearing Seal, Adapter CE (when specified) 154 Bracket to Frame Stud

37E Bearing Seal, Rubbing CE (when specified) 155 Lifting Lug Kit

37F Bearing Seal, Labyrinth DE (when specified) 202 Space Heater Kit

Kinamatic II

Type CD, Frames 2512AT, 2513AT, 2812AT, 2813AT

Medium DC Motors 145



GE Support Services

7–Medium DC

CD4350

CD4352

CD4354

CD4355

CD4357

CD4358

CD4359

CD4362

CD4363

CD4366

CD4454

CD4457

CD4460

CD4463

CD4464

CD4465

CD4468

CD4469

CD4473

CD4477

CD4559

CD4562

CD4566

CD4568

CD4570

CD4571

CD4575

CD4580

CD4670

CD4673

CD4674

CD4677

CD4678

CD4681

CD4682

CD4686

CD4773

CD4776

CD4780

CD4781

CD4784

CD4785

CD4789

CD4791

CD4793

CD4799

LBS.

3900

4200

4100

4700

4500

5300

5000

6000

5600

6300

5800

6500

7300

6300

8300

7000

7800

9500

8800

10000

9800

11100

12700

10400

11700

14500

13300

15200

14700

16100

15300

17900

16900

18700

19900

20600

18700

20800

23500

20100

21900

26100

24600

29700

27200

30800

1770

1910

1860

2130

2040

2400

2270

2720

2540

2860

2630

2950

3310

2860

3760

3180

3540

4310

3990

4540

4450

5040

5760

4720

5310

6580

6030

6890

6670

7300

6940

8120

7670

8480

9030

9340

8480

9430

10660

9120

9930

11840

11160

13470

12340

13970

LBS.

1100

1200

1300

1400

1500

1600

1700

1800

1900

1700

1900

2200

2400

2500

2700

2800

3000

3200

2700

3100

3600

3700

4000

4100

4300

4500

4400

5000

5100

5700

6200

6400

6500

5400

5900

6700

6900

7400

8200

9300

500

540

600

640

680

730

770

820

860

770

860

1000

1090

1130

1230

1270

1360

1450

1230

1410

1630

1600

1810

1860

1980

2040

2000

2270

2310

2590

2810

2900

2950

2450

2680

3040

3130

3360

3720

4220

Aprox. Net Weight

Frame Aprox. Arm Net Weight

Types CD and MCD, Frames 4300 to 4700

146 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Type CD, Frames 4300, 4400 and 4500

Rotating Parts

Ref. No. Description

1 Armature Core

2 Armature Coil Support

3 Commutator (Glass–Banded)

4 Commutator Shell

5 Armature Coils

6 Shaft

7 Key

8 Glass Banding (Core)

9 Glass Banding (End Turns)

10 Balance Weight

11 Molded Equalizer or Armature Coil Support

12 Core Rivet

13 Fan Hub (Self–Vent Only)

14 Fan (Self–Vent. Only)

15 Axial Vent Holes

16 Commutator (V–Ring)

Stationary Parts

Ref. No. Description

41 Magnet Frame

42 Main Pole

43 Main Coil

44 Commutating Pole

45 Commutating Coil

46 Pole Bolt

47 Pole Shims

48 Brush Holder Yoke

49 Insulation Block

50 Brush Holder Stud

51 Brush Holder & Spring

56 Bearing Bracket

57 Ball Bearing

58 Bearing Cartridge

58 Bearing Cap

60 Grease Metering Plate

61 Bearing Retaining Ring

62 Grease Fitting

63 Grease Relief Plug

64 Shaft Cover

65 Fan Baffle (Self–Vent. Only)

66 Conduit Box

67 Conduit Box Adapter

Medium DC Motors 147



GE Support Services

7–Medium DC

Type CD, Frames 4300, 4400 and 4500

Rotating Parts

Ref. No. Description

1 Armature Core

2 Armature Coil Support

3 Commutator (Glass–Banded)

4 Commutator Shell

5 Armature Coils

6 Shaft

7 Key

8 Glass Banding (Core)

9 Glass Banding (End Turns)

10 Balance Weight

11 Molded Equalizer Or Armature Coil Support

12 Core Rivet

13 Fan Hub (Self–Vent. Only)

14 Fan (Self–Vent. Only)

15 Axial Vent Holes

16 Commutator (V–Ring)

Stationary Parts

Ref. No. Description

41 Magnet Frame

42 Main Pole

43 Main Coil

44 Commutating Pole

45 Commutating Coil

46 Pole Bolt

47 Pole Shims

49 Brush Holder Yoke

49 Insulation Block

50 Brush Holder Stud

51 Brush Holder & Spring

56 Bearing Bracket

57 Ball Bearing

58 Bearing Cartridge

59 Bearing Cap

60 Grease Metering Plate

61 Bearing Retaining Ring

62 Grease Fitting

63 Grease Relief Plug

64 Shaft Cover

65 Fan Baffle (Self–Vent. Only)

66 Conduit Box

67 Conduit Box Adapter

148 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Type CD, Frames 4600 and 4700

Rotating Parts

Ref. No. Description

1 Armature Core

2 Armature Coil Support

3 Commutator (Glass–Banded)

4 Commutator Shell

5 Armature Coils

6 Shaft

7 Key

8 Glass Banding (Core)

9 Glass Banding (End Turns)

10 Balance Weight

11 Molded Equalizer Or Armature Coil Support

12 Core Rivet

13 Armature Core Key

15 Axial Vent Holes

16 Commutator (V–Ring)

17 Radial Ventilation Ducts

Stationary Parts

Ref. No. Description

41 Magnet Frame

42 Main Pole

43 Main Coil

44 Commutating Pole

45 Commutating Coil

46 Pole Bolt

47 Pole Shims

48 Brush Holder Yoke

49 Insulation Block

50 Brush Holder Stud

51 Brush Holder & Spring

56 Bearing Bracket

57 Ball Bearing

58 Bearing Cartridge

59 Bearing Cap

60 Grease Metering Plate

61 Bearing Retaining Ring

62 Grease Fitting

63 Grease Relief Plug

64 Shaft Cover

66 Conduit Box

67 Conduit Box Adapter

Medium DC Motors 149



GE Support Services

7–Medium DC

Type CD, Frames 4300–4500 (Four Pole)

Type CD, Frames 4600–4700 (Six Pole)

Exploded View, Type CD and MCD Renewal Parts. Four pole Motor shown,

but parts identification are typical to both Four and Six pole Motors.

Ref. No. Description

1 Armature

1A Armature Coil

2 Armature Coil Support

3 Armature Core

5 Armature Fan

5A Armature Fan Hub

9 Armature Shaft

13 Baffle, Fan

13A Baffle, Metering Plate

13B Baffle, Handhole Fan

13C Baffle, Hand Hole Bracket

14 Bearing

15 Bearing Bracket

16 Bearing Cap

17 Bearing Cartridge

19 Brushholder Stud Ins Blk

Ref. No. Description

20 Brushholder Yoke

21 Brushholder Stud

22 Brushholder (w/Spring)

23 Brushholder Spring

24 Brush

33 Comm Coil & Pole

33A Comm Coil & Pole Bolt

35 Commutator

36 Conduit Box

37 Conduit Box Adapter

37A Conduit Box Cover–End

37B Conduit Cox Cover–Bottom

39C Cover, Adapter Conduit–CE

39D Cover, Side Louvered–CE

42 Cover, Bottom–CE

43 Cover, Bottom–DE

Ref. No. Description

46A Cover, Side Louvered–DE

49 Cover, Top–CE

50 Cover, Top–DE

56 Equalizer Coil

57 Frame

60A Grease Fitting

60B Grease Pipe Plug

66 Main Coil & Pole

66A Main Coil & Pole Bolt

79 Retaining Ring

100 Terminal Board

100A Line Adapter, Arma Series Fld.

100B Line Adapter, Ins. Blk.

100C Line Adapter Support

150 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Brush Box Spacing

Type CD and MCD, Frames 4300–4700

CD4000

V – Holder Style Brush Rigging

Identification of Brushholders, Springs, and Brushes

.375 x 1.50 Brush

36A172040AAG03 Brushholder with Springs

36C702000AA003 Brushholder only

36B472000AA003 Springs Only (0A3) 3.0 lbs max. 2.16 lbs min.

36A164454DAP01 Brush T–563 Grade .375 x 1.5 x 2.5 (1.25 is min. length)

36A164454DAP05 Brush T–606 Grade Papermill

36A164454DAP02 Brush T–566 Grade Extruder

.500 x 1.50 Brush

36A172040AAG02 Brushholder with Springs

36C702000AA002 Brushholder only

36B472000AA002 Springs Only (0A2) 4.0 lbs max. 2.7 lbs min.

36A164455DAP01 Brush T–563 Grade .50 x 1.5 x 2.5 (1.25 is min. length)

36A164455DAP05 Brush T–606 Grade Papermill

36A164455DAP02 Brush T–566 Grade Extruder

.625 x 1.50 Brush

36A172040AAG01 Brushholder with Springs

36C702000AA001 Brushholder only

36B472000AA001 Springs Only (0A1) 5.75 lbs max. 3.4 lbs min.

36A164456DAP01 Brush T–563 Grade .625 x 1.5 x 2.5 (1.25 is min. length)

36A164456DAP05 Brush T–606 Grade Papermill

36A164456DAP02 Brush T–566 Grade Extruder

Medium DC Motors 151



GE Support Services

7–Medium DC

Type CD and MCD,

Frames 6000–6200, 6700–6900

Typical Weights**

Frame

CD6050

CD6052

CD6054

CD6055

CD6057

CD6058

CD6059

CD6062

CD6063

CD6066

CD6154

CD6157

CD6160

CD6163

CD6164

CD6165

CD6168

CD6169

CD6173

CD6177

CD6259

CD6262

CD6266

CD6268

CD6270

CD6271

CD6275

CD6280

lbs.

3900

4200

4100

4700

4500

5300

5000

6000

5600

6300

5800

6500

7300

6300

8300

7000

7800

9500

8800

10000

9800

11100

12700

10400

11700

14500

13300

15200

kgs.

1770

1910

1860

2130

2040

2400

2270

2720

2540

2860

2630

2950

3310

2860

3760

3180

3540

4310

3990

4540

4450

5040

5760

4720

5310

6580

6030

6890

lbs.

1100

1200

1300

1400

1500

1600

1700

1800

1900

1700

1900

2200

2400

2500

2700

2800

3000

3200

2700

3100

3600

3700

4000

4100

4300

4500

kgs

500

540

600

640

680

730

770

820

860

770

860

1000

1090

1130

1230

1270

1360

1450

1230

1410

1630

1600

1810

1860

1980

2040

FRAME

CD6766

CD6770

CD6771

CD6774

CD6776

CD6778

CD6779

CD6785

CD6873

CD6876

CD6881

CD6882

CD6885

CD6887

CD6890

CD6896

CD6977

CD6981

CD6985

CD6986

CD6990

CD6991

CD6996

CD6999

lbs.

12100

14000

12400

15200

14000

15600

17200

17600

16000

17700

20300

16800

18500

23500

21000

23500

23400

26000

28700

24300

26900

31700

29600

34400

kgs

5490

6350

5630

6900

6350

7080

7810

7990

7260

8040

9220

7630

8400

10670

9530

10670

10620

11800

13030

11030

12210

14390

13440

15620

lbs.

3565

3915

3835

4410

4185

4685

4920

5205

4730

5120

6090

5250

5640

7440

6610

7960

5925

6685

7540

6480

7240

8770

8095

9325

kgs

1620

1780

1740

2000

1900

2130

2230

2360

2150

2320

2560

2380

2860

3380

3000

3610

2690

3030

3420

2940

3290

3980

3680

4230

Approx.

Net Weight Approx. Arm

Net Weight Approx.

Net Weight Approx. Arm

Net Weight

** Approximate weights for typical motors in each

frame size. Does not include weight of accessories

such as tachometers, blowers, heat exchangers,

etc. For specific weights, refer to certified outline.

152 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Type CD, Frames 6000 and 6200

Rotating Parts

Ref. No. Description

1 Armature Core

2 Armature Coil Support

3 Commutator (Glass–Banded)

4 Commutator Shell

5 Armature Coils

6 Shaft

7 Key

8 Glass Banding (Core)

9 Glass Banding (End Turns)

10 Balance Weight

11 Molded Equalizer or Armature Coil Support

12 Core Rivet

13 Axial Vent Holes

14 Commutator (V–Ring)

Stationary Parts

Ref. No. Description

41 Magnet Frame

42 Main Pole

43 Main Coil

44 Commutating Pole

45 Commutating Coil

46 Pole Bolt

47 Pole Shims

48 Brush Holder Yoke

49 Insulation Block

50 Brush Holder Stud

51 Brush Holder & Spring

56 Bearing Bracket

57 Ball Bearing

58 Bearing Cartridge

59 Bearing Cap

60 Grease Metering Plate

61 Bearing Retaining Ring

62 Grease Fitting

63 Grease Relief Plug

64 Shaft Cover

66 Conduit Box

67 Air Baffle (on CD6000 only)

Medium DC Motors 153



GE Support Services

7–Medium DC

Type CD, Frames 6700–6900

Rotating Parts

Ref. No. Description

1 Armature Core

2 Armature Coil Support

3 Commutator (Glass–Banded)

4 Commutator Shell

5 Armature Coils

6 Shaft

7 Key

8 Glass Banding (Core)

9 Glass Banding (End Turns)

10 Balance Weight

11 Molded Equalizer or Armature Coil Support

13 Armature Core Key

16 Commutator (V–Ring)

17 Radial Ventilation Ducts

Stationary Parts

Ref. No. Description

41 Magnet Frame

42 Main Pole

43 Main Coil

44 Commutating Pole

45 Commutating Coil

46 Pole Bolt

47 Pole Shims

48 Brush Holder Yoke

49 Insulation Block

50 Brush Holder Stud

51 Brush Holder & Spring

56 Bearing Bracket

57 Ball Bearing

58 Bearing Cartridge

59 Bearing Cap

60 Grease Metering Plate

61 Bearing Retaining Ring

62 Grease Fitting

63 Grease Relief Plug

64 Shaft Cover

66 Conduit Box

66 Conduit Box Adapter

67 Air Baffle (on CD6200 only)

154 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Type CD, Frames 6000–6200 (Four Pole)

Type CD, Frames 6700–6900 (Six Pole)

Ref. No. Description

1 Armature

1A Armature Coil

2 Armature Coil Support

3 Armature Core

9 Armature Shaft

13A Baffle, Metering Plate

14 Bearing

15 Bearing Bracket

16 Bearing Cap

17 Bearing Cartridge

19 Brushholder Stud Ins. Blk.

20 Brushholder Yoke

21 Brushholder Stud

22 Brushholder (w/Spring)

Ref. No. Description

23 Brushholder Spring

24 Brush

33 Comm Coil & Pole

33A Comm Coil & Pole Bolt

35 Commutator

36 Conduit Box

37 Conduit Box Adapter

37A Conduit Box Cover–End

37B Conduit Box Cover–Bottom

39C Cover, Adapter Conduit–CE

39D Cover. Side Louvered–CE

42 Cover Bottom–CE

43 Cover Bottom–DE

46A Cover, Side Louvered–CE

Ref. No. Description

49 Cover, Top–CE

50 Cover, Top–DE

56 Equalizer Coil

57 Frame

60A Grease Fitting

60B Grease Pipe Plug

66 Main Coil & Pole

66A Main Coil & Pole Bolt

79 Retaining Ring

100 Terminal Board

100A Line Adapter, Arma/Series Fld.

100B Line Adapter, Ins. Blk.

100C Line Adapter Support

Exploded View, Type CD and MCD Renewal Parts. Four pole Motor shown,

but parts identification are typical to both Four and Six pole Motors.

Medium DC Motors 155



GE Support Services

7–Medium DC

Type CD and MCD, Frames 5000–9000

Type CD, Frames 580–680

Typical Weights**

Frame Size

584

585

586

683

684

685

5423

5545

6453

6665

7452

7666

8482

8836

9542

9966

Armature Only

620

700

800

1000

1100

1300

1400

1800

2000

2900

2700

4100

4000

6900

4900

9500

Complete Motor

2600

2900

3400

4000

4600

5300

5700

7200

8100

11900

10500

15000

14800

25500

17000

33100

Armature Only

280

320

360

450

500

600

640

820

900

1300

1200

1900

1800

3100

2200

4300

Complete Motor

1200

1300

1500

1800

2100

2400

2600

3300

3700

5400

4800

7200

6700

11600

7700

15000

**Weights for typical machines in each frame size. For specific weights, refer to certified outline.

Pounds Kilograms

156 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Type CD, Frames 5000–9000

Exploded View, Type CD and MCD Renewal Parts.

See facing page for descriptions.

Continuation of Exploded View

Medium DC Motors 157



GE Support Services

7–Medium DC

Type CD, Frames 5000–9000

Ref. No. Description

1 Shaft

2 Key

3 Commutator

4 Equalizer Coils–Molded

5 Armature Core

6 Coil Support (Drive End)

7 Armature Coil

8 Armature

9 Fan Hub

11 Pole Face Bar Connections (Commutator End)

12 Pole Face Bar Connections (Drive End)

13 “T” Nut

14 Stud

15 Insulating Tube

18 Insulating Spacer

17 Belleville Washer

18 Lock Nut

19 Main Coil And Pole And Pole Face Bar Assembly

20 Pole Face Bar

21 Commutating Coil L And Pole Assembly

Ref. No. Description

22 Bearing Cap (Commutator End}

23 Grease Metering Plate

24 Bearing (Commutator End)

25 Bearing Cartridge Commutator End)

28 Bearing Bracket Commutator End}

27 Cover, Upper (Commutator End)

28 Screen Cover, Lower (Commutator End)

29 Brushholder Yoke

30 Magnet Frame

31 Bearing Bracket (Drive End)

32 Screen Cover, Side (Drive End}

33 Bearing Cartridge (Drive End)

34 Bearing (Drive End)

35 Bearing Cap (Drive End)

36 Stud, Brushholder

37 Brush, Carbon

38 Brushholder

39 Brushholder Spring

40 Insulating Block–Brushholder Stud

158 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Type CD and MCD, Frames 5000–9000

Type CD, Frames 580–680

Ask customer for type of stud being used and thickness

of brush. Use this chart for: Insulated block & stud (2

piece design)

36 – Brushholder Stud

40 – Insulated Block

3/4" Thick Brush

36A160421AAG02 Brushholder w/Spring

36B465481AA001 Spring Only

36A164451AAP21 Brush (Standard)

36A164451AAP05 Brush (Papermill Use Only)

7/8" Thick Brush

36A160422AAG02 Brushholder w/Spring

36B465482AA001 Spring Only

36A164452AAP21 Brush (Standard)

36A164452AAP05 Brush (Papermill Use Only)

1" Thick Brush

36A160423AAG02 Brushholder w/Spring

36B465483AA001 Spring Only

36A164453AAP21 Brush (Standard)

36A164453AAP05 Brush (Papermill Use Only)

Type CD and MCD, Frames 5000–9000

Type CD, Frames 580–680

Ask customer for type of stud being used and thickness

of brush.

Use this chart for: Fluid Bed Stud (1 piece design)

1 – Fluid Bed

(Epoxy Coating)

2 – Stud

3/4" Thick Brush

36A161101AAG01 Brushholder w/Spring

36B465081AA001 Spring Only

36A161401AAP20 Brush (Standard)

36A161401AAP06 Brush (Papermill Use Only)

7/8" Thick Brush

36A161102AAG01 Brushholder w/Spring

36B465082AA001 Spring Only

36A161402AAP20 Brush (Standard)

36A161402AAP06 Brush (Papermill Use Only)

1" Thick Brush

36A161103AAG01 Brushholder w/Spring

36B465083AA001 Spring Only

36A161403AAP20 Brush (Standard)

36A161403AAP06 Brush (Papermill Use Only)

Identification of Brushholders, Springs,

and Brushes

Medium DC Motors 159



GE Support Services

7–Medium DC

Type MD, Frames 402 to 423

Exploded View, Type MD 402–423 Renewal Parts.

See following page for descriptions.

Principal Renewal Parts

Give Description, Cat. No. and Quantity of Each Item Required

Ref. No. Description

1 Exciting field coil

5 Commutating field coil

9 Armature with frame heads, bearing cap and bearings

10 Armature

11 Armature coil

12 Set of armature rewinding insulation

14 Shaft with key

16 Commutator

17 Set of copper and mica segments, finished and bound

18 Combination inner and outer mica cone for front and back of commutator

19 Mica collar under segments

21 Roller bearing

32 Brush holder with pressure arms and insulated studs (Position_____) see ◆◆• footnote

32 Brush holder with pressure arms and insulated studs (Position______) see ◆◆• footnote

33 Pressure arm with tip

34 Insulator for stud

35 Carbon brush with pigtail and terminal

ø 41 Set of cables

ø Not Shown in illustration.

160 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Renewal Parts Available if Required

Ref. No. No. Req. Description Ref. No. No. Req. Description

2▲▲Spring flange for exciting field coil 27 1 Split retaining ring for bearing or mounting sleeve

3▲▲Metal pad for exciting field coil 28 1 Lock nut for lower mounting sleeve

4▲▲Insulating pad for exciting field coil 29 1 Spacing collar, upper

6▲▲Spring flange for commutating field coil 30 1 Spacing collar, lower

7▲▲Metal pad for commutating field coil 31 1 Shrink ring for bearing

8▲▲Insulating pad for commutating field coil 36 ▲▲Hinge pin for ratchet

13 ▲▲Set of punches 37 2 § Pinion key

15 2 § Thrust collar with grease deflector 38 2 Pinion nut

20 2 § Frame head with bearing cap and grease fittings 39 2 Washer for pinion nut

22 2 Bearing cap with thrust bushing ø 40 ▲▲‡ Rubber bushing

23 2 § Thrust bushing for bearing cap ø 42 ▲▲† Cover for frame over commutator

24 2 § Thrust ring for frame head 43 ▲▲Laminated pole piece for exciting field coil

25 1 Mounting sleeve, upper, including Ref. 27 44 ▲▲Commutating pole piece

26 1 Mounting sleeve, lower 45 1 Fan for armature

‡ Specify cable hole size. § Specify whether for pinion end or commutator end.

▲▲ Quantity variable. † Specify whether right– or left–hand facing commutator end.

◆◆• Brush holder position, facing commutator end. The position (a to h) must be filled in on line for Ref. No. 32.

(a) Right–hand. (f) Upper left– or right– or upper middle right– or lower

(b) Left–hand. middle left–hand.

(d) Upper left– or lower right–hand. middle right–hand.

(e) Top or bottom or upper left– or lower right hand. (h) Top or bottom, or upper right– or lower left–hand.

◆◆•

Type MD, Frames 402 to 423

Medium DC Motors 161



GE Support Services

7–Medium DC

Renewal Parts MD402 Qty. MD403 Qty. MD404 Qty. MD406 Qty. MD407 Qty. MD408 Qty.

Armature Coils 2721244G02 1 2721160G02 1 2721099G02 1 2721094G02 1 –––– 1 2721085G04 1

Shaft 2721248G01 1 2721158–001 1 2721100G01 1 2721129G01 1 –––– 2721072G01 1

Coil & Pole – Comm 2721249G65 2 2721154G65 2 2721149G65 2 2721092G65 2 2721505G65 2 2721027G65 2

Coil Only – Comm 2721249G61 2 2721154G61 2 2721149G61 2 2721092G61 2 2721505G61 2 2721027G61 2

Coil & Pole –Series 2721250G65 4 2721155G65 4 2721150G65 4 2721093G65 4 2721506G65 4 2721028G65 4

Coil Only –Series 2721250G61 4 2721155G61 4 2721150G61 4 2721093G61 4 2721506G61 4 2721028G61 4

Coil & Pole –Shunt 2721447G65 4 2721280G65 4 2721595G65 4 2721664G65 4 –––– 4 2721563G65 4

Coil Only – Shunt 2721447G61 4 2721280G61 4 2721595G61 4 2721664G61 4 –––– 4 2721563G61 4

Coil & Pole –Compound 2721260G65 4 2721283G65 4 2721266G65 4 2721261G65 4 4728401G65 4 2721236G65 4

Coil Only – Compound 2721260G61 4 2721283G61 4 2721266G61 4 2721261G61 4 4728401G61 4 2721236G61 4

CE/DE Bearing 8832705–001 2 751722–005 2 751722–005 2 7517722–007 2 –––– 751722–009 2

Brushholder & Spring

–Right Hand Side 6x523 1 4750665–001 1 6x104 1 6x104 1 –––– 6x531 1

–Left Hand Side 6x524 1 4750665–001 6x105 1 6x105 1 –––– 6x532 1

Spring only

Brush 6709782–P01 6709782–P01 8809558–P01 8809558–P01 –––– 6709784–P01

CE Insp. Cover

Lockwasher – Spring 36A164222AA001 2 36A164222AA001 2 36A164222AA001 2 36A164222AA002 2 –––– 36A164222AA003 2

Lockwasher–Flat 431832–001 2 2706929–001 2 2906929–001 2 419082–001 2 –––– 4714021–101 2

Pinion Nut 8815254–001 2 2706022–001 2 2706022–001 2 8815257–001 2 –––– 2706023–001 2

Cable Bushings

Series Motor 41B533331–013 8 41B533331–013 8 41B453331–013 8 41B533331–006 8 –––– 41B533331–009 8

Shunt Motor–Field 41B533331–013 8 41B533331–013 8 41B533331–013 8 41B533331–003 4 –––– 41B533331–004 4

Armature –––– –––– ––––– 41B533331–006 4 –––– 41B533331–006 4

Compound Motor

Field/Armature 41B533331–013 8 41B533331–103 8 41B533331–013 8 41B533331–006 8 ––––– 41B533331–009 8

Series Lead 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4 –––– 41BB53331–001 4

Type MD, Frames 402 to 408

Standard Renewal Parts Identification

162 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Renewal Part MD410 Qty. MD412 Qty. MD414 Qty. MD416 Qty. MD418 Qty. MD420 Qty.

Armature Coils 2721029G02 1 4722976G02 1 2721183G02 1 2721148G02 1 2721193G02 1 2721875G02 1

Shaft 2721125G01 1 2721175G01 1 2721185G01 1 272136AAG01 1 2721529G01 2721049G01 1

Coil & Pole – Comm 2721018G65 2 41C631195G65 2 41C631174G65 2 2721128G65 2 4722726G65 2 2721394G65 2

Coil Only – Comm 2721018G61 2 41C631195G61 2 41C631174G61 2 2721128G61 2 4722726G61 2 2721394G61 2

Coil & Pole –Series 2721019G65 4 41C631209G65 2 41C631214G65 2 2721130G65 4 2721190G65 4 2721209G65 4

Coil Only –Series 2721019G61 4 41C631209G61 2 41C631214G61 2 2721130G61 4 2721190G61 4 2721209G61 4

Coil & Pole –Shunt 2721281G65 4 2721326G65 4 2721343G65 4 2721430G65 4 2721190G65 4 2721345G65 4

Coil Only – Shunt 2721281G61 4 2721326G61 4 2721343G61 4 2721430G61 4 2721190G61 4 2721345G61 4

Coil & Pole –Compound 41C631223G65 4 41C631207G65 2 41C631176G65 2 2721253G65 4 2721334G65 4 2721229G65 4

Coil Only – Compound 41C631223G61 4 41C631207G61 2 41C631176G61 2 2721253G61 4 2721334G61 4 2721229G61 4

CE/DE Bearing 6x515 2 751722–010 2 8832705AB016 2 8832705AB017 2 8832705AB020 2 8832705AB022 2

Brushholder & Spring

–Right Hand Side 6x106 1 907A683AG001 1 747939G07 747926G01 2721046G03 754124G01

–Left Hand Side 6x106 1 747916G13 1 747939G10 7479926G02 2721046G01 754124G02

Spring only

Brush 8809563–P01 6709782–P01 6709764–P01 6709784–P01 8809553–P01 6709741–P01

Lockwasher – Spring 36A164222AA004 2 36A164222AA0052 36A164222AA006 2 36A164222AA007 2 36A164222AA009 2 36A160422AA009 2

Lockwasher–Flat 435173–001 2 434161–001 2 8809867–001 2 433635–001 2 433635–001 2 433636–001 2

Pinion Nut 2706024–001 2 2706043–001 2 2706025–001 2 2706026–001 2 6709539–001 2 6709762–001 2

Cable Bushings

Series Motor 41B533331–009 8 717502–001 8 41B533331–020 8 41B453331–010 12 41B533331–022 12 2702930–001 4

Shunt Motor 41B533331–004 4 41B533331–020 4 422356–001 4 422356–001 4 41B533331–024 4 2702930–001 2

41B533331–009 4 717502–001 4 41B533331–020 4 41B533331–010 8 41B533331–022 12 422356–001 2

Compound Motor 41B533331–013 4 422356–001 4 422356–001 4 422356–001 4 422356–001 8 422356–001 2

41B533331–009 8 717502–001 8 41B533331–20 8 41B533331–010 12 41B533331–022 12 2702930–001 4

Field/Armature 41B533331–013 8 41B533331–103 8 41B533331–013 8 41B533331–006 8 –––––––––––––– 41B533331–009 8

Series Lead 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4 –––––––––––––– 41BB53331–001 4

Type MD, Frames 410 to 420

Standard Renewal Parts Identification

Medium DC Motors 163



GE Support Services

7–Medium DC

Type MD, Frames 602 to 624

Exploded View, Type MD 602–624 Renewal Parts.

See following page for descriptions.

164 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Renewal Parts Available if Required

Ref. No. No. Req. Description Ref. No. No. Req. Description

2 8 Spring flange for exciting field coil 30 ▲▲§Pinion nut

3 4 Metal pad for exciting field coil 31 ▲▲§Washer for pinion nut

4▲▲Insulating pad for exciting field coil 32 ▲▲‡Rubber bushing

6 8 Spring flange for commutating field coil 34 ▲▲†Cover for frame over commutator

7 4 Metal pad for commutating field coil 36 4 Laminated pole piece for exciting field coil

8▲▲Insulating pad for commutating field coil 37 4 Commutating pole piece

16 2 §Thrust collar with grease deflector 38 1 Fan for armature

21 2 §Frame head with bearing cap and grease fittings 39 1 Shell with inlet flange

24 2 §Bearing cap 40 1 Impeller

24A 1 Split retaining ring, commutator end 41 ▲▲Filter pad

29 ▲▲§Pinion key

‡Specify cable hole size. §Specify whether for pinion end or commutator end.

▲▲Quantity variable. †Specify whether right– or left–hand facing commutator end.

*Not illustrated.

◆◆• Brush holder position, facing commutator end. The position (a to b) must be filled in on line for Ref. No. 25.

(a) Right–hand

(b) Left–hand

Principal Renewal Parts

Give Description, Cat. No. and Quantity of Each Item Required

Ref. No. Description

1 Exciting field coil

5 Commutating field coil

9 Armature with frame heads, bearing cap and bearings

10 Armature

11 Armature coil

12 Equalizer coil

13 Set of armature rewinding insulation

14 Set of punchings

15 Shaft with keys

17 Commutator

18 Set of copper and mica segments, finished and bound

19 Combination inner and outer mica cone for front and back of commutator

20 Mica collar under segments

22 Ball or roller bearing, commutator end

23 Roller bearing, pinion end

25 Brush holder with spring assembly and insulated studs (Position_____) see ◆◆• footnote

25 Brush holder with spring assembly and insulated studs (Position______) see ◆◆• footnote

26 Constant pressure spring assembly

*27 Insulated stud

28 Carbon brush with pigtail and terminal

33 Set of cables

35 Complete conversion kit

◆◆•

Type MD, Frames 602 to 624

Medium DC Motors 165



GE Support Services

7–Medium DC

Type MD 600

Ref. No. Description

1 Key, Pinion

2 Key, Spider

3 Key, Pinion

4 Shaft

5 Commutator

6 Armature Spider

7 Armature Head

8 Armature Core

9 Armature Flange

10 Shrink Ring

11 Coil, Equalizer

12 Coil, Armature

13 Thimble, Shaft

14 Nut, Pinion

15 Washer, Pinion

16 Cap, Bearing

17 ‡ Bearing

18 Frame Head

19 Thrust Collar & Grease Slinger

20 Armature

21 Armature Fan

22 Thrust Collar & Grease Slinger

23 Frame Head

24 Bearing, Roller

25 Cap, Bearing

Ref. No. Description

26 Washer, Pinion

27 Nut, Pinion

28 Cover, Topside, Comm. End (MD602–MD612)

29 Cover, Topside, Comm. End (MD614–MD618)

30 Frame, Top Half

31 Brush Holder Assembly

32 Commutating Coil & Pole Assembly

33 Frame, Bottom Half

34 Large Cover, Bottom (Side), Commutator End

35 Small Cover, Bottom (Side), Commutator End

36 Cover, Bottom (Front), Commutator End

37 Cover, Bottom (Front), Commutator End

38 Main Coil & Pole Assembly

39 Cover, Bottom (Side), Drive End

40 Hood, Top (Side), Drive End

41 Cover Adapter, Blower

42 Screen

43 Connection Elbow

44 Band

45 Blower Housing

46 Screen Housing

47 Impeller

48 Blower Mounting Bracket

49 Blower Motion

‡ Roller Bearing–Horizontal Construction

Ball Bearing–Vertical Construction

166 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Renewal Part MD602 Qty. MD603 Qty. MD604 Qty. MD606 Qty. MD608 Qty. MD610 Qty.

Armature 6791731G01 1 6791759G01 1 6791729G01 1 6791734G01 1 6791772G01 1 6791782G01 1

Armature Coils 6739323G01 1 8832060G01 1 6739295G01 1 88320419G01 1 6739487G01 1 6739255G01 1

Insulation Set 6739363ABG01 1 36C695833AAG01 1 36C695834AAG01 1 36C695835AAG01 1 36C695836AAG01 1 36C695837AAG01 1

Commutator 764979G01 1 8822219G01 1 8822635G01 1 8822951G01 1 8822696G01 1 8822852G01 1

Shaft 6739383G02 1 8832390G02 1 8832022G03 1 8832307G02 1 8832542G01 1 8832543G01 1

Fan 6739486–001 1 8832383–001 1 8832027–001 1 8832312–001 1 8832100–001 1 8832166–001 1

Coil & Pole – Comm 6739324G65 4 8832061G65 4 6739296G65 4 8832050G65 4 6739488G65 4 6739256G65 1

Coil Only – Comm 6739324G61 4 8832061G61 4 6739296G61 4 8832050G61 4 6739488G61 4 6739256G61 1

Coil & Pole –Series 6739325G65 4 8832062G65 4 6739297G65 4 8832051G65 4 6739489G65 4 6739257G65 4

Coil Only –Series 6739325G61 4 8832062G61 4 6739297G61 4 8832051G61 4 6739489G61 4 6739257G61 4

Coil & Pole –Shunt 6739326G65 4 8832064G65 4 6739298G65 4 8832053G65 4 6739491G65 4 6739258G65 4

Coil Only – Shunt 6739326G61 4 8832064G61 4 6739298G65 4 8832053G61 4 6739491G61 4 6739258G61 4

Coil & Pole –Compound 6739354G65 4 8832063G65 4 6739479G65 4 8832052G65 4 6739490G65 4 6739482G65 4

Coil Only – Compound 6739354G61 4 8832063G61 4 6739479G61 4 8832052G61 4 6739490G61 4 6739490G61 4

Coil & Pole–Stab Shunt 8832779G65 4 8832066G65 4 6739481G65 4 8832055G65 4 6739493G65 4 6739482G65 4

Coil Only–Stab Shunt 8832779G61 4 8832066G61 4 6739481G61 4 8832055G61 4 6739493G61 4 6739484G61 4

CE/DE Bearing 8832705–002 2 8832705–002 2 8832705–004 2 8832705–005 2 8832705–006 2 8832705–007 2

Brushholder & Spring Constant Pressure

–Right Hand Side 428C685G01 1 428C685G01 1 428C694G01 1 428C695G01 1 428C686G01 1 428C697G01 1

–Left Hand Side 428C685G02 1 428C685G02 1 428C694G02 1 428C695G02 1 428C686G02 1 428C697G02 1

Spring only 41B533105G01 4 41B533105G01 4 36B465487AA001 4 337B689G02 4 337B689G02 4 337B689G02 4

Brush 337B696–P02 4 337B696–P02 4 337B696–P03 4 337B696–P04 4 337B696–P05 4 337B696–P08 4

Brushholder & Spring Clockspring

–Right Hand Side 6748708G01 1 6748708G01 1 6749037G01 1 6749232G01 1 6749108G01 1 6749108G03 1

–Left Hand Side 6748708G02 1 6748708G02 1 6749037G02 1 6749232G02 1 6749108G02 1 6749108G04 1

Brush 6709783–P01 4 6709783–P01 4 6709786–P01 4 8809716–P01 4 8809563–P01 4 8809552–P01 4

CE Insp. Cover 6739384G01 1 6736007G01 1 6736007G01 1 8832322G01 1 8832105G01 1 8832105G01 1

Lockwasher – Spring 36A164222AA001 2 36A164222AA001 2 36A164222AA001 2 36A164222AA002 2 36A164222AA003 2 36A164222AA004 2

Lockwasher–Flat 88099863–001 2 2706929–001 2 2706929–001 2 8809863–001 2 8809864–001 2 8809865–001 2

Pinion Nut 8815255–001 2 8815256–001 2 8815256–001 2 8815257–001 2 8815258–001 2 8815259–001 2

Cable Bushings

Series Motor 41B533331–001 8 41B533331–001 8 41B533331–002 8 41B533331–003 8 41B533331–003 8 41B533331–005 8

Shunt Motor–Field 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4

Armature 41B533331–001 4 41B533331–001 4 41B533331–002 4 41B533331–003 4 41B533331–003 4 41B533331–005 4

Compound Motor Field 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4 41B533331–001 4

Armature 41B533331–001 4 41B533331–001 4 41B533331–0021 4 41B533331–003 4 41B533331–003 4 41B533331–005 4

Type MD, Frames 602 to 610

230V Standard Renewal Parts Identification

Medium DC Motors 167



GE Support Services

7–Medium DC

Renewal Part MD612 Qty. MD614 Qty. MD616 Qty. MD618 Qty. MD620 Qty. MD622 Qty.

Armature 6791786G01 1 6792403G01 1 6793951G01 1 6792407G01 1

Armature Coils 6739237G01 1 8832010G01 1 8832037G01 1 6739341G01 1 428C588G01 1 428C564G01 1

Equalizer Coils –––––––––––––– 8832919G01 1 8832924G01 1 8832923G01 1

Insulation Set 36C695838AAG01 1 36C695839AAG01 1 428C345G01 1 8842626ABG01 1 428C587ABG01 1 428C562ABG01 1

Commutator 6727740G01 1 8822836G01 1 8822910G01 1 6739413G01 1

Shaft 8832544G01 1 8832545G01 1 8832546G01 1 8832547G01 1

Fan 6739459–001 1 8832138–001 1 8832260–001 1 6739496–001 1

Coil & Pole – Comm 6739238G65 4 8832011G65 4 8832038G65 4 6739342G65 4 428C333G65* 4 8842401G65** 6

4 8842624G65** 4

Coil Only – Comm 6739238G61 4 8832011G61 4 8832038G61 4 6739342G61 4 428C333G61* 4 8842401G61** 6

8842624G61** 4

Coil & Pole –Series 6739239G65 4 8832012G65 4 8832039G65 4 6739343G65 4 428C348G65 4

Coil Only –Series 6739239G61 4 8832012G61 4 8832039G61 4 6739343G61 4 428C348G61 4

Coil & Pole –Shunt 6739243G65 4 8832016G65 4 8832043G65 4 6739345G65 4 8842697G65 4

Coil Only – Shunt 6739243G61 4 8832016G61 4 8832043G61 4 6739345G61 4 8842697G61 4 8842631G61** 6

Coil & Pole – Shunt w/bars 8842644ABG62 4 8842441ABG63 6

Coil & Pole –Compound 6793241G65 4 8832014G65 4 8832041G65 4 6739344G65 4 428C308G65* 4 8851734G65 6

Coil Only – Compound 6793241G61 4 8832014G61 4 8832041G61 4 6739344G61 4 428C308G61 4 8851734G61 6

Coil & Pole–Stab Shunt 6739247G65 4 8832020G65 4 8832047G65 4 6739347G65 4

Coil Only–Stab Shunt 6739247G61 4 8832020G61 4 8832047G61 4 6739347G61 4

CE/DE Bearing 8832705–008 2 8832705–009 2 8832705–010 2 8832705–011 2 8832705–012 2 8832705–013 2

Brushholder & Spring Constant Pressure

428C682G02 2 428C683G02 4 428C687G02 4 428C689G02 4

Spring only 337B689G02 6 337B689G02 16 337B689G02 16 337B689G02 16

Brush 337B696–P07 6 337B696–P08 16 337B696–P07 4 337B696–P09 16 337B696–P07

Brushholder & Spring Clockspring

6748585G02 2 6749126G01 2 6749126G04 2 6748745G02 4

Brush 6709764–P01 6 8809552–P01 16 8670764–P01 16 6709776–P01 16

CE Insp. Cover 6739277G01 2 8832142G01 2 8832142G01 2 8832142G01 2 8819615–001

Lockwasher – Spring 36A164222AA005 2 36A164222AA006 2 36A164222AA007 2 36A164222AA007 2 36A160535AA009 2 36A160535AA009

Lockwasher–Flat 8809866–001 2 8809867–001 2 8809868–001 2 8809869–001 2 8819685–001 2 8819685–001 2

Pinion Nut 8815260–001 2 8815261–001 2 8815262–001 2 8815263–001 2 8819612–001 2 88519629–001 2

Cable Bushings

Series Motor 41B533331–009 8 41B533331–009 8 41B533331–011 8 41B533331–010 8

Shunt Motor–Field 41B533331–001 4 41B533331–001 4 41B533331–025 4 41B533331–025 4 41B533331–002 6

Armature 41B533331–009 4 41B533331–009 4 41B533331–011 4 41B533331–010 4 41A236629AA00160

Compound Motor Field 41B533331–001 4 41B533331–001 4 41B533331–025 4 41B533331–025 4 41B533331–002 6

Armature 41B533331–009 8 41B533331–009 8 41B533331–011 8 41B533331–010 8

Type MD, Frames 612 to 622

230V Standard Renewal Parts Identification

*Non Compensated **Compensated

168 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

230 Volt Constant Pressure

602 Qty. 1 – 428C685G01 – RH Brushholder w/Spring

Qty. 1 – 428C685G02 – LH Brushholder w/Spring

Qty. 4 – 41B533105G01 – Spring Only

Qty. 4 – 337B696 P02 – Brush

603 Qty. 1 – 428C685G01 – RH Brushholder w/Spring

Qty. 1 – 428C685G02 – LH Brushholder w/Spring

Qty. 4 – 41B533105G01 – Spring Only

Qty. 4 – 337B696 P02 – Brush

604 Qty. 1 – 428C694G01 – RH Brushholder w/Spring

Qty. 1 – 428C694G02 – LH Brushholder w/Spring

Qty. 4 – 36B465487AA001 – Spring Only

Qty. 4 – 337B696 P03 – Brush

606 Qty. 1 – 428C695G01 – RH Brushholder w/Spring

Qty. 1 – 428C695G02 – LH Brushholder w/Spring

Qty. 4 – 337B689G01 – Spring Only

Qty. 4 – 337B696 P04 – Brush

608 Qty. 1 – 428C686G01 – RH Brushholder w/Spring

Qty. 1 – 428C686G02 – LH Brushholder w/Spring

Qty. 4 – 337B689G01 – Spring Only

Qty. 4 – 337B696 P05 – Brush

610 Qty. 1 – 428C697G01 – RH Brushholder w/Spring

Qty. 1 – 428C697G02 – LH Brushholder w/Spring

Qty. 6 – 337B689G02 – Spring Only

Qty. 6 – 337B696 P08 – Brush

612 Qty. 2 – 428C682G02 – Brushholder w/Spring

Qty. 6 – 337B689G01 – Spring Only

Qty. 6 – 337B696 P07 – Brush

614 Qty. 4 – 428C683G02 – Brushholder w/Spring

Qty. 16 – 337B689G01 – Spring Only

Qty. 16 – 337B696 P08 – Brush

616 Qty. 4 – 428C687G02 – Brushholder w/Spring

Qty. 16 – 337B689G01 – Spring Only

Qty. 16 – 337B696 P07 – Brush

618 Qty. 4 – 428C689G02 – Brushholder w/Spring

Qty. 16 – 337B689G01 – Spring Only

Qty. 16 – 337B696 P09 – Brush

230 Volt Coil Spring

602 Qty. 1 – 6748708G01 – RH Brushholder

Qty. 1 – 6748708G02 – LH Brushholder

Qty. 4 – 6709783 P01 – Brush

603 Qty. 1 – 6748708G01 – RH Brushholder

Qty. 1 – 6748708G02 – LH Brushholder

Qty. 4 – 6709783 P01 – Brush

604 Qty. 1 – 6749037G01 – RH Brushholder

Qty. 1 – 6749037G02 – LH Brushholder

Qty. 4 – 6709786 P01 – Brush

606 Qty. 1 – 6749232G01 – RH Brushholder

Qty. 1 – 6749232G02 – LH Brushholder

Qty. 4 – 8809716 P01 – Brush

608 Qty. 1 – 6749108G01 – RH Brushholder

Qty. 1 – 6749108G02 – LH Brushholder

Qty. 4 – 8809563 P01 – Brush

610 Qty. 1 – 6749108G03 – RH Brushholder

Qty. 1 – 6749108G04 – LH Brushholder

Qty. 6 – 8809552 P01 – Brush

612 Qty. 2 – 6748585G02 – Brushholder

Qty. 6 – 6709764 P01 – Brush

614 Qty. 4 – 6749126G02 – Brushholder

Qty. 16 – 8809552 P01 – Brush

616 Qty. 4 – 6749126G04 – Brushholder

Qty. 16 – 6709764 P01 – Brush

618 Qty. 4 – 6748745G02 – Brushholder

Qty. 16 – 6709776 P01 – Brush

Above quantities represent total required per motor.

Type MD, Frames 602 to 624

Identification of Brushholders, Springs and Brushes

Medium DC Motors 169



GE Support Services

7–Medium DC

550 Volt Constant Pressure

602 No constant pressure replacement.

603 Qty. 1 – 428C685G01 – LH Brushholder w/Spring

Qty. 1 – 428C685G02 – RH Brushholder w/Spring

Qty. 4 – 41B533105G01 – Spring Only

Qty. 4 – 337B696 P02 – Brush

604 Qty. 1 – 428C685G01 – LH Brushholder w/Spring

Qty. 1 – 428C685G02 – RH Brushholder w/Spring

Qty. 4 – 41B533105G01 – Spring Only

Qty. 4 – 337B696 P02 – Brush

606 Qty. 1 – 428C694G01 – LH Brushholder w/Spring

Qty. 1 – 428C694G02 – RH Brushholder w/Spring

Qty. 4 – 36B465487AA001 – Spring Only

Qty. 4 – 337B696 P03 – Brush

608 Qty. 1 – 428C695G01 – LH Brushholder w/Spring

Qty. 1 – 428C695G02 – RH Brushholder w/Spring

Qty. 4 – 337B689G01 – Spring Only

Qty. 4 – 337B696 P04 – Brush

610 Qty. 1 – 428C686G01 – LH Brushholder w/Spring

Qty. 1 – 428C686G02 – RH Brushholder w/Spring

Qty. 4 – 337B689G01 – Spring Only

Qty. 4 – 337B696 P05 – Brush

612 Qty. 2 – 41C631160G02 – Brushholder w/Spring

Qty. 4 – 337B689G01 – Spring Only

Qty. 4 – 337B696 P05 – Brush

614 Qty. 4 – 41C631160G02 – Brushholder w/Spring

Qty. 8 – 337B689G01 – Spring Only

Qty. 8 – 337B696 P05 – Brush

616 Qty. 2 – 41C31397G01 – Brushholder w/Spring

Qty. 12 – 337B689G01 – Spring Only

Qty. 12 – 337B696 P08 – Brush

618 Qty. 4 – 428C683G02 – Brushholder w/Spring

Qty. 16 – 337B689G01 – Spring Only

Qty. 16 – 337B696 P08 – Brush

Above quantities represent total required per motor.

Type MD, Frames 602 to 624

Identification of Brushholders, Springs and Brushes

550 Volt Coil Spring

602 Qty. 1 – 6748708G03 – RH Brushholder

Qty. 1 – 6748708G04 – LH Brushholder

Qty. 4 – 8807309 P01 – Brush

603 Qty. 1 – 6748708G01 – RH Brushholder

Qty. 1 – 6748708G02 – LH Brushholder

Qty. 4 – 6709783 P01 – Brush

604 Qty. 1 – 6748708G01 – RH Brushholder

Qty. 1 – 6748708G02 – LH Brushholder

Qty. 4 – 6709783 P01 – Brush

606 Qty. 1 – 6749232G03 – RH Brushholder

Qty. 1 – 6749232G04 – LH Brushholder

Qty. 4 – 6709786 P01 – Brush

608 Qty. 1 – 6749232G01 – RH Brushholder

Qty. 1 – 6749232G02 – LH Brushholder

Qty. 4 – 8809716 P01 – Brush

610 Qty. 1 – 6749108G01 – RH Brushholder

Qty. 1 – 6749108G02 – LH Brushholder

Qty. 4– 8809563 P01 – Brush

612 Qty. 2 – 6749310G02 – Brushholder

Qty. 4 – 8809563 P01 – Brush

614 Qty. 4 – 6749310G02 – Brushholder

Qty. 8 – 8809563 P01 – Brush

616 Qty. 2 – 6749315G02 – Brushholder

Qty. 12 – 8809522 P01 – Brush

618 Qty. 4 – 6749126G02 – Brushholder

Qty. 16 – 8809522 P01 – Brush

170 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Size

802

803

804

806

808

810

812

814

816

818

820

822

824

828

Armature Only

160

210

290

370

540

720

960

1140

2030

2630

3040

3850

4650

11060

Complete Motor

550

780

960

1300

1820

2480

3310

4620

5840

7730

12100

15200

19100

39100

Armature Only

130

170

245

325

435

655

920

1195

1380

1745

2110

5020

Complete Motor

250

355

435

590

825

1125

1500

2100

2650

3500

5490

6700

8660

17740

PoundsFrame Kilograms

Type MD, Frames 802 to 828

Typical Weights

Medium DC Motors 171



GE Support Services

7–Medium DC

MDP804 thru MDP808 Motors

Exploded View Horizontal

Ref. No. Description

1 Armature

2Armature Coil

6 Armature Core

6A Armature Core Key

7 Armature Fan

7A Armature Fan Hub

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

34 Bearing Cap

36 Bearing Cartridge

37A Bearing Seal–Inner

37B Bearing Seal–Outer

39A Thrust Collar–Inner

39B Thrust Collar–Outer

Ref. No. Description

40 Grease Fitting

42 Pipe Plug

44 Split Ring

45 Locking Ring

50 Brush

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73 Main Field Coil & Pole

75 Pole Bolts

102A Cover, Bottom Comm End–Solid

102B Cover, Bottom Comm End–Screen

104A Cover, Bottom Drive End–Solid

104B Cover, Bottom Drive End–Screen

114D Cover, Quick Access–Comm End–Solid

116A Cover, Side Drive End–Solid

Ref. No. Description

116B Cover, Side Drive End–Screen

116C Cover, Side Drive End–Hood

117A Cover, Top Comm End–Solid

117B Cover, Top Comm End–Screen

119A Cover, Top Drive End–Solid

119B Cover, Top Drive End–Screen

141 Cable Bushing

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

202B Heat Sink–Space Heater

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

172 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

MDV804 thru MDV808 Motors

Exploded View Vertical

Ref. No. Description

1 Armature

2 Armature Coil

6 Armature Core

6A Armature Core Key

7 Armature Fan

7A Armature Fan Hub

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

32B Bearing Bracket–Drive End

34 Bearing Cap

36 Bearing Cartridge

37A Bearing Seal–Inner

37B Bearing Seal–Outer

Ref. No. Description

39A Thrust Collar–Inner

40 Grease Fitting

41 Grease Tube Assembly

42 Pipe Plug

44 Split Ring

45 Locking Ring

50 Brush

55A Brushholder Stud–Right Hand

55B Brushholder Stud–Left Hand

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73 Main Field Coil & Pole

75 Pole Bolts

102A Cover, Bottom Comm End–Solid

102B Cover, Bottom Comm End–Screen

Ref. No. Description

112B Cover, Bottom Side Drive End–Screen

114A Cover, Side Comm End–Solid

114B Cover, Side Comm End–Screen

114D Cover, Quick Access–Comm End–Solid

117A Cover, Top Comm End–Solid

117B Cover, Top Comm End–Screen

141 Cable Bushing

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

202B Heat Sink–Space Heater

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

Medium DC Motors 173



GE Support Services

7–Medium DC

MDP810 thru MDP818 Motors

Exploded View Horizontal

Ref. No. Description

1 Armature

2 Armature Coil

6 Armature Core

6A Armature Core Key

7 Armature Fan

7A Armature Fan Hub

9 Equalizer Coil

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

34 Bearing Cap

36 Bearing Cartridge

37A Bearing Seal–Inner

37B Bearing Seal–Outer

39A Thrust Collar–Inner

39B Thrust Collar–Outer

40 Grease Fitting

42 Pipe Plug

44 Split Ring

45 Locking Ring

50 Brush

Ref. No. Description

55A Brushholder Stud–Right Hand

55B Brushholder Stud–Left Hand

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57D Brushholder Mounting Bolt

70 Comm Coil & Pole Assembly

73 Main Field Coil & Pole

75 Pole Bolts

102A Cover, Bottom Comm End–Solid

102B Cover, Bottom Comm End–Screen

104A Cover, Bottom Drive End–Solid

104B Cover, Bottom Drive End–Screen

114D Cover, Quick Access–Comm End–Solid

116A Cover, Side Drive End–Solid

116B Cover, Side Drive End–Screen

116C Cover, Side Drive End–Hood

Ref. No. Description

117A Cover, Top Comm End–Solid

117B Cover, Top Comm End–Screen

119A Cover, Top Drive End–Solid

119B Cover, Top Drive End–Screen

141 Cable Bushing

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

202B Heat Sink–Space Heater

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

174 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

MDV810 thru MDV818 Motors

Exploded View Vertical

Ref. No. Description

1 Armature

2 Armature Coil

6 Armature Core

6A Armature Core Key

7 Armature Fan

7A Armature Fan Hub

9 Equalizer Coil

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

32B Bearing Bracket–Drive End

34 Bearing Cap

36 Bearing Cartridge

37A Bearing Seal–Inner

Ref. No. Description

37B Bearing Seal–Outer

39A Thrust Collar–Inner

40 Grease Fitting

41 Grease Tube Assembly

42 Pipe Plug

44 Split Ring

45 Locking Ring

50 Brush

55A Brushholder Stud–Right Hand

55B Brushholder Stud–Left Hand

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57D Brushholder Mounting Bolt

70 Comm Coil & Pole Assembly

73 Main Field Coil & Pole

75 Pole Bolts

102A Cover, Bottom Comm End–Solid

Ref. No. Description

102B Cover, Bottom Comm End–Screen

112B Cover, Bottom Side Drive End–Screen

114A Cover, Side Comm End–Solid

114B Cover, Side Comm End–Screen

114D Cover, Quick Access–Comm End–Solid

117A Cover,Top Comm End–Solid

117B Cover, Top Comm End–Screen

141 Cable Bushing

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

202B Heat Sink–Space Heater

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

Medium DC Motors 175



GE Support Services

7–Medium DC

MDP820

Exploded View Horizontal

Ref. No. Description

1 Armature

2 Armature Coil

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

32A Bearing Bracket–Comm End

32B Bearing Bracket–Drive End

34 Bearing Cap

36 Bearing Cartridge

Ref. No. Description

39A Thrust Collar–Inner

39B Thrust Collar–Outer

40 Grease Fitting

42A Pipe Plug

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73A Main Field Coil & Pole With Bars

75A Comm Pole Bolt

75C Main Field Pole Bolt

75D Main Field Pole Bolt–Bottom

76 Pole Face Bars

Ref. No. Description

102B Cover, Bottom Comm End–Screen

11OA Cover, Bottom Side Comm End–Solid

110B Cover, Bottom Side Comm End–Screen

118A Cover, Top Side Comm End–Solid

118B Cover, Top Side Comm End–Screen

118C Cover, Top Side Comm End–Hood

134 Cover, Lead

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

176 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

MDP822 Motors

Exploded View Horizontal

Ref. No. Description

1 Armature

2 Armature Coil

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

32A Bearing Bracket–Comm End

32B Bearing Bracket–Drive End

34 Bearing Cap

Ref. No. Description

36 Bearing Cartridge

39A Thrust Collar–Inner

39B Thrust Collar–Outer

40 Grease Fitting

42 Pipe Plug

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brush Holder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

75A Comm Pole Bolt

73A Main Field Coil & Pole With Bars

75C Main Field Pole Bolt

75D Main Field Pole Bolt–Bottom

Ref. No. Description

76 Pole Face Bars

102B Cover, Bottom Comm End–Screen

110A Cover, Bottom Side Comm End–Solid

110B Cover, Bottom Side Comm End–Screen

118A Cover, Top Side Comm End–Solid

118B Cover, Top Side Comm End–Screen

118C Cover, Top Side Comm End–Hood

134 Cover, Lead

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

Medium DC Motors 177



GE Support Services

7–Medium DC

MDV820, MDV822 Motors

Exploded View Vertical

Ref. No. Description

1 Armature

2 Armature Coil

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

32A Bearing Bracket–Comm End

32B Bearing Bracket–Drive End

34 Bearing Cap

Ref. No. Description

36 Bearing Cartridge

39A Thrust Collar–Inner

39B Thrust Collar–Outer

40 Grease Fitting

41 Grease Tube Assembly

42 Pipe Plug

44 Split Ring

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73A Main Field Coil & Pole With Bars

75A Comm Pole Bolt

Ref. No. Description

75C Main Field Pole Bolt

76 Pole Face Bars

118A Cover, Top Side Comm End–Solid

118B Cover, Top Side Comm End–Screen

118C Cover, Top Side Comm End–Hood

122 Cover, Space Heater Access

124 Cover, Frame Mounting Access

134 Cover, Lead

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood w/Screen

310 Blower Motor

178 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

MDP824 Motors

Exploded View Horizontal

Ref. No. Description

1 Armature

2 Armature Coil

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

32A Bearing Bracket–Comm End

32B Bearing Bracket–Drive End

34 Bearing Cap

Ref. No. Description

36 Bearing Cartridge

39A Thrust Collar–Inner

39B Thrust Collar–Outer

40 Grease Fitting

42 Pipe Plug

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73A Main Field Coil & Pole With Bars

75A Comm Pole Bolt

75C Main Field Pole Bolt

75D Main Field Pole Bolt–Bottom

Ref. No. Description

76 Pole Face Bars

102B Cover, Bottom Comm End–Screen

11OA Cover, Bottom Side Comm End–Solid

110B Cover, Bottom Side Comm End–Screen

118A Cover, Top Side Comm End–Solid

118B Cover, Top Side Comm End–Screen

118C Cover, Top Side Comm End–Hood

134 Cover, Lead

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

Medium DC Motors 179



GE Support Services

7–Medium DC

Ref. No. Description

1 Armature

2 Armature Coil

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

15 Pinion Key

16 Pinion Nut

17A Pinion Lock Washer–Split Type

17B Pinion Lock Washer–Bent Type

31 Bearing

32A Bearing Bracket–Comm End

32B Bearing Bracket–Drive End

34 Bearing Cap

Ref. No. Description

36 Bearing Cartridge

39A Thrust Collar–Inner

39B Thrust Collar–Outer

40 Grease Fitting

41 Grease Tube Assembly

42 Pipe Plug

44 Split Ring

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73A Main Field Coil & Pole With Bars

75A Comm Pole Bolt

Ref. No. Description

75C Main Field Pole Bolt

76 Pole Face Bars

118A Cover, Top Side Comm End–Solid

118B Cover, Top Side Comm End–Screen

118C Cover, Top Side Comm End–Hood

122 Cover, Space Heater Access

124 Cover, Frame Mounting Access

134 Cover, Lead

151 Frame Split Bolt

153 Shaft Thimble

202A Space Heater Only

208A Thermostat

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

310 Blower Motor

MDV824 Motors

Exploded View Vertical

180 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Renewal Part MD802A Qty. MD802B Qty. MD802C Qty. MD803 Qty. MD804 Qty. MD806 Qty.

Armature 36A164230AAG01 1 36A164230AAG01 1 36A164230AAG01 1 36A164231AAG01 1 36A164232AAG01 1 36A164233AAG01 1

Armature w/Frameheads 36A164230AAG03 1 36A164230AAG03 1 36A164230AAG03 1 36A164231AAG03 1 36A164232AAG03 1 36A164232AAG03 1

Armature Coils 36A164160AAG01 1 36A164160AAG01 1 36A164160AAG01 1 36A164161AAG01 1 36A164162AAG01 1 36A164163AAG01 1

Equalizer Coils –––––––––––––––– –––––––––––––––– –––––––––––––––– –––––––––––––––– –––––––––––––––– ––––––––––––––––

Insulation Set 36A164190AAG01 1 36A164190AAG01 1 36A164190AAG01 1 36A164191AAG01 1 36A164192AAG01 1 36A164193AAG01 1

Commutator 36A164080AAG01 1 36A164080AAG01 1 36A164080AAG01 1 36A164081AAG01 1 36A164082AAG01 1 36A164083AAG01 1

Shaft 36B465450AAG01 1 36B465450AAG01 1 36B465450AAG01 1 36B465451AAG01 1 36B465452AAG01 1 36B465453AAG01 1

Fan 36A164070CA001 1 36A164070CA001 1 36A164070CA001 1 36A164071CA001 1 36A164072CBG01 1 36A164072CA001 1

Coil & Pole – Comm 36A164360BAG01 4 36A164360BAG01 4 36A164360BBG01 4 36A164361BAG01 4 36A164362AAG01 4 36A164363AAG01 4

Coil Only – Comm 36A164360BAG02 4 36A164360BAG02 4 36A164360BBG02 4 36A164361AAG02 4 36A164362AAG02 4 36A164363AAG02 4

Coil & Pole –Series 36A164400TCG01 4 36A164400TDG01 4 36A164400TEG01 4 36A164401TBG01 4 36A164402TBG01 4 36A164403TBG01 4

Coil Only –Series 36A164400TCG02 4 36A164400TDG02 4 36A164400TEG02 4 36A164401TBG02 4 36A164402TBG02 4 36A164403TBG02 4

Coil & Pole –Shunt 36A164400AGG01 4 36A164400AAG01 4 36A164400AAG01 4 36A164400AAG01 4 36A164402AAG01 4 36A164403AAG01 4

Coil Only – Shunt 36A164400AGG02 4 36A164400AAG02 4 36A164400AAG02 4 36A164401AAG02 4 36A164402AAG02 4 36A164403AAG02 4

Coil & Pole –Compound 36A164400JDG01 4 36A164400JEG01 4 36A164400JFG01 4 36A164401JCG01 4 36A164402JCG01 4 36A164403JCG01 4

Coil Only – Compound 36A164400JDG02 4 36A164400JEG02 4 36A164400JFG02 4 36A164401JCG02 4 36A164402JCG02 4 36A164403JCG02 4

Coil & Pole–Stab Shunt 36A164400JRG01 4 36A164400JRG01 4 36A164400JRG01 4 36A164401JRG01 4 36A164402JEG01 4 36A164403JDG01 4

Coil Only–Stab Shunt 36A164400JRG02 4 36A164400JRG02 4 36A164400JRG02 4 36A164401JRG02 4 36A164402JEG02 4 36A164403JDG02 4

CE/DE Bearing 8832705–002 2 8832705–002 2 8832705–002 2 8832705–003 2 8832705–004 2 8832705–005 2

Brushholder & Spring 36A160424AAG01 4 36A160424AAG01 4 36A160424AAG01 4 36A164425AAG01 4 36A160426AAG01 4 36A160427AAG01 4

Spring only 36B465484AA001 4 36B465484AA001 4 36B465484AA001 4 36B465485AA001 4 36B465486AA001 4 36A164487AA001 4

Brush 36A164454AAP20 4 36A164454AAP20 4 36A164454AAP20 4 36A164455AAP20 4 36A164456AAP20 4 36A164457AAP20 4

CE QCK Removal Cover 36A164470CAG01 2 36A164470CAG01 2 36A164470CAG01 2 36A164471CAG01 2 36A164472CAG01 2 36A164473CAG01 2

Lockwasher – Spring 36A164222AA001 2 36A164222AA001 2 36A164222AA001 2 36A164222AA001 2 36A164222AA001 2 36A164222AA002 2

Lockwasher–Flat 36A164222AB001 2 36A164222AB001 2 36A164222AB001 2 36A164222AB001 2 36A164222AB002 2 36A164222AB003 2

Pinion Nut 36A164223AA001 2 36A164223AA001 2 36A164223AA001 2 36A164223AA002 2 36A164223AA002 2 36A164223AA003 2

Cable Bushings

Series Motor 36A164527AA001 4 36A164527AC001 4 36A164527AC001 4 36A164527AC001 4 36A164527CAG01 2 36A164527AC001 2

Larger Hole –––––––––––––––– –––––––––––––––– –––––––––––––––– –––––––––––––––– 36A164527AC002 2 36A164527AC002 2

Shunt Motor–Field 36A164527AC001 2 36A164527AC001 2 36A164527AC001 2 36A164527AC001 2 36A164527AC001 2 36A164527AC002 2

Blank 36A164527AA004 2 36A164527AA004 2 36A164527AA004 2 36A164527AA004 2 36A164527AA004 2 36A164527AA004 2

Compound Motor 36A164527AC001 4 36A164527AC001 4 36A164527AC001 4 36A164527AC001 2 36A164527AC001 2 36A164527AC001 2

Type MD, Frames 802 to 806

230V Standard Renewal Parts Identification

Medium DC Motors 181



GE Support Services

7–Medium DC

Renewal Part MD808 Qty. MD810 Qty. MD812 Qty. MD814 Qty. MD816 Qty. MD818 Qty.

Armature 36A164234AAG01 1 36A164235AAG01 1 36A164236AAG01 1 36A164237AAG01 1 36A164238AAG01 1 36A164239AAG01 1

Armature w/Frameheads 36A164234AAG03 1 36A164235AAG03 1 36A164236AAG03 1 36A164237AAG03 1 36A164238AAG03 1 36A164239AAG03 1

Armature Coils 36A164164AAG01 1 36A164165AAG01 1 36A164166AAG01 1 36A164167AAG01 1 36A164168AAG01 1 36A164169AAG01 1

Equalizer Coils –––––––––––––––– –––––––––––––––– ––––––––––––––––– 36A164177AB001 29 36A164178AB001 29 36A164179AB001 27

Insulation Set 36A164194AAG01 1 36A164195AAG01 1 36A164196AAG01 1 36A164197AAG01 1 36A164198AAG01 1 36A164199AAG01 1

Commutator 36A164084AAG01 1 36A164085AAG01 1 36A164086AAG01 1 36A164087AAG01 1 36A164088AAG01 1 36A164089AAG01 1

Shaft 36B465454AAG01 1 36B465455AAG01 1 36B465456AAG01 1 36B465457AAG01 1 36B465458AAG01 1 36B465459AAG01 1

Fan 36A164074CB001 1 36A164074CA001 1 36A164076CA001 1 36A164077CA001 1 36A164078CAG01 1 36A164079CA001 1

Coil & Pole – Comm 36A164364AAG01 4 36A164365AAG01 4 36A164366AAG01 4 36A164367AAG01 4 36A164368AAG01 4 36A164369AAG01 4

Coil Only – Comm 36A164364AAG02 4 36A164365AAG02 4 36A164366AAG02 4 36A164367AAG02 4 36A164368AAG02 4 36A164369AAG02 4

Coil & Pole –Series 36A164404SBG01 4 36A164405SBG01 4 36A164406SBG01 4 36A164407SBG01 4 36A164408SBG01 4 36A164409SBG01 4

Coil Only –Series 36A164404SBG02 4 36A164405SBG02 4 36A164406SBG02 4 36A164407SBG02 4 36A164408SBG02 4 36A164409SBG02 4

Coil & Pole –Shunt 36A164404AAG01 4 36A164405AAG01 4 36A164406AAG01 4 36A164407AAG01 4 36A164408AAG01 4 36A164409AAG01 4

Coil Only – Shunt 36A164404AGG02 4 36A164405AAG02 4 36A164406AAG02 4 36A164407AAG02 4 36A164408AAG02 4 36A164409AAG02 4

Coil & Pole –Compound 36A164404KBG01 4 36A164405KBG01 4 36A164406KBG01 4 36A164407KBG01 4 36A164408KBG01 4 36A164409KBG01 4

Coil Only – Compound 36A164404KBG02 4 36A164405KBG02 4 36A164406KBG02 4 36A164407KBG02 4 36A164408KBG02 4 36A164409KBG02 4

Coil & Pole–Stab Shunt 36A164400KFG01 4 36A164405KDG01 4 36A164406KEG01 4 36A164407KDG01 4 36A164408KDG01 4 36A164409KDG01 4

Coil Only–Stab Shunt 36A164400KFG02 4 36A164405KDG02 4 36A164406KEG02 4 36A164407KDG02 4 36A164408KDG02 4 36A164409KDG02 4

CE/DE Bearing 8832705–006 2 8832705–007 2 8832705–008 2 8832705–009 2 8832705–010 2 8832705–011 2

Brushholder & Spring 36A160421AAG01 6 36A160421AAG01 8 36A160422AAG01 8 36A160422AAG01 12 36A160422AAG01 16 36A160423AAG01 16

Spring only 36B465481AA001 6 36B465481AA001 8 36B465482AA001 8 36B465482AA001 12 36B465482AA001 16 36A164483AA001 16

Brush 36A164451AAP20 6 36A164451AAP20 8 36A164452AAP20 8 36A164452AAP20 12 36A164452AAP20 16 36A164453AAP20 16

CE QCK Removal Cover 36A164471CAG01 2 36A164472CAG01 2 36A164476CAG01 2 36A164477CAG01 2 36A164478CAG01 2 36A164479CAG01 2

Lockwasher – Spring 36A164222AA003 2 36A164222AA004 2 36A164222AA005 2 36A164222AA006 2 36A164222AA007 2 36A164222AA007 2

Lockwasher–Flat 36A164222AB004 2 36A164222AB005 2 36A164222AB006 2 36A164222AB007 2 36A164222AB008 2 36A164222AB009 2

Pinion Nut 36A164223AA004 2 36A164223AA005 2 36A164223AA006 2 36A164223AA007 2 36A164223AA008 2 36A164223AA009 2

Cable Bushings

Series Motor 36A164527AC002 4 36A164527AB001 1 36A164527AB002 1 36A164527AB001 6 36A164527AB002 2 36A164527AB003 4

–––––––––––––––– 36A164527AD006 1 36A164527AD003 1 36A164527AD006 2 36A164527AD003 2 36A164527AB003 2

–––––––––––––––– 36A164527AE004 2 36A164527AE002 2

Shunt Motor–Field 36A164527AC002 2 36A164527AE004 2 36A164527AE002 2 36A164527AA001 2 36A164527AB002 5 36A164527AA003 4

36A164527AA004 2 36A164527AA001 1 36A164527AA002 1 36A164527AB001 2 36A164527AA002 3 36A164527AB003 2

–––––––––––––––– 36A164527AF001 1 36A164527AF003 1 36A164527AA001 4 –––––––––––––––– 36A164527AD004 2

Compound Motor 36A164527AC002 4 36A164527AB001 1 36A164527AB002 1 36A164527AB001 6 36A164527AB002 6 36A164527AD003 6

–––––––––––––––– 36A164527AD006 1 36A164527AD003 1 36A164527AD006 2 36A164527AD003 2 36A164527AD004 2

–––––––––––––––– 36A164527AE004 2 36A164527AE002 2 ––––––––––––––– –––––––––––––––– –––––––––––––––

Type MD, Frames 808 to 818

230V Standard Renewal Parts Identification

182 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Excavator Motor Generators

Type CDS, Frames 320 to 8000

Types MPC and MCF, Frames 500 to 900

Frame Size

CD250

CD280

CD320

CD360

CD400

CD440

CD500

CDS580

CDS680

CDS5000

MPC500

CDS6000

MCF600

CDS7000

MCF700

CDS8000

MCF800

MCF900

Pounds

100

140

200

260

350

550

800

1050

2350

1700

2800

2900

4000

5850

5454

Kilograms

120

160

250

360

480

1070

770

1270

1320

1810

2650

2470

Pounds

240

360

520

720

950

1320

1890

2900

4400

6600

5600

10100

13650

12300

14850

17500

16565

Kilograms

110

170

240

330

440

600

860

1320

2000

3000

2540

4580

6190

5580

6740

7940

7510

Armature Only Generator Complete

Typical Generator Weights in Pounds and Kilograms*

*These weights are approximated and do not necessarily reflect specific generator ratings.

DC–1725–1

MG–5394–1

Medium DC Motors 183



GE Support Services

7–Medium DC

Excavator Motor Generators

MCF700–900 Generators,

Exploded View

Ref. No. Description

1D Armature & Couplings

2 Armature Coil Set

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

Ref. No. Description

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73A Main Field Coil & Pole With Bars

75A Comm Pole Bolt

75C Main Field Pole Bolt

76 Pole Face Bars

80A Pedestal Cap

81 Oil Ring

81A Oil Ring Wear Pads

82 Sight Gauge

83 Cradle Bottom

Ref. No. Description

84 Cradle Cap

84A Cradle Cap Dowel Pin

85 Insulating Bolt

85A Insulating Shim

85B Insulating Washer–Cradle Cap

87 Sleeve Bearing

88 Oil Seals–Leather

88A Oil Seal Ring

89 Oil Temperature Gauge

90 Filler Cap

93 Space Heater, Pedestal

131 Cover, Hood Comm End

151 Frame Split Bolt

184 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Excavator Motor Generators

MPC500–600 Generators,

Exploded View

Ref. No. Description

1D Armature & Couplings

2 Armature Coil Set

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brush Holder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

Ref. No. Description

73 Main Field Coil & Pole

75A Comm Pole Bolt

75C Main Field Pole Bolt

80A Pedestal Cap

81 Oil Ring

81A Oil Ring Wear Pads

82 Sight Gauge

83 Cradle Bottom

84 Cradle Cap

84A Cradle Cap Dowel Pin

Ref. No. Description

85 Insulating Bolt

85A Insulating Shim

85B Insulating Washer–Cradle Cap

87 Sleeve Bearing

88 Oil Seals–Leather

88A Oil Seal Ring

89 Oil Temperature Gauge

90 Filler Cap

93 Spacer Heater, Pedestal

131 Cover, Hood Comm End

151 Frame Split Bolt

Medium DC Motors 185



GE Support Services

7–Medium DC

Excavator Motor Generators

CDS5000–6000 Excavator Generators,

Exploded View

Ref. No. Description

1D Armature & Couplings

2 Armature Coil Set

5A Armature Coil Support–Comm End

5B Armature Coil Support–Drive End

6 Armature Core

6A Armature Core Key

9A Equalizer–Molded

10 Shaft

12 Commutator

31 Bearing

32 Bearing Bracket

34 Bearing Cap

36 Bearing Cartridge

40 Grease Fitting

42 Pipe Plug

46 Grease Metering Plate

50 Brush

53 Brushholder Yoke

Ref. No. Description

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73 Main Field Coil & Pole

75A Comm Pole Bolt

75C Main Field Pole Bolt

76 Pole Face Bars

110B Cover, Bottom Side Comm End–Screen

118A Cover, Top Side Comm End–Solid

133 Cover, Drive End

Ref. No. Description

151 Frame Split Bolt

305A Blower Housing

305B Blower Impeller

305C Air Inlet Screen

305D Air Inlet Hood With Screen

305E Blower Bracket

310 Blower Motor

186 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Excavator Motor Generators

CDS580–680 Excavator Generator,

Exploded View

Ref. No. Description

1D Armature & Couplings

2 Armature Coil Set

5B Armature Coil Support–Drive End

6 Armature Core

7 Armature Fan

9 Equalizer Coil

10 Shaft

12 Commutator

31 Bearing

32 Bearing Bracket

34 Bearing Cap

36 Bearing Cartridge

40 Grease Fitting

42 Pipe Plug

46 Grease Metering Plate

Ref. No. Description

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

56 Brushholder Stud Insulation

57 Brush Holder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil & Pole Assembly

73 Main Field Coil & Pole

75A Comm Pole Bolt

75B Main Field Pole Bolt

110B Cover, Bottom Side Comm End–Screen

118A Cover, Top Side Comm End–Solid

133 Cover, Drive End

Medium DC Motors 187



GE Support Services

7–Medium DC

Excavator Motor Generators

CDS320–500 Excavator Generators,

Exploded View

Ref. No. Description

1D Armature & Couplings

2 Armature Coil Set

6 Armature Core

6A Armature Core Key

7 Armature Fan

9 Equalizer Coil

10 Shaft

12 Commutator

31 Bearing

32 Bearing Bracket

34 Bearing Cap

40 Grease Fitting

42 Pipe Plug

Ref. No. Description

50 Brush

53 Brushholder Yoke

55 Brushholder Stud

57 Brushholder

57B Brushholder Spring

57C Brushholder Mounting Clip

70 Comm Coil 8 Pole Assembly

73 Main Field Coil 8 Pole

75A Comm Pole Bolt

75C Main Field Pole Bolt

110B Cover, Bottom Side Comm End–Screen

118A Cover, Top Side Comm End–Solid

133 Cover, Drive End

188 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Excavator Motor Generators

Type CD, Frames 186A to 685A Kinamatic, Exploded View

Ref. No. Description

1 Armature

2 Armature Coil

7 Armature Fan

7A Armature Fan Hub

10 Armature Shaft

46 Grease Metering Plate

31A,B Bearing

32A,B Bearing Bracket

34 Bearing Cap

35 Bearing Cap Gasket

36 Bearing Cartridge

51 Brush Rigging

53 Brushholder Yoke

Ref. No. Description

55 Brushholder Stud

57A Brushholder

57B Brushholder Spring

50 Brush

70 Comm Coil And Pole Assembly

12 Commutator

140 Conduit Box

140B Conduit Box Adapter

140C Conduit Box Adapter Gasket

118A Cover, Topside Comm End–Solid

73 Field Coil & Pole

45 Locking Ring

Medium DC Motors 189



GE Support Services

7–Medium DC

Electric Vehicles

BT1300 Thru BT2300

Ref. No. Description

1 Armature

5 Armature Fan

14 Bearing–CE/DE

15 Bearing Bracket—DE

18 Brush Rigging

18A Cross Connector

23 Brushholder Spring

24 Brush

33C Commutating Coil Asm.

39A Cover, Access Solid–CE

39B Cover, Access Screen–CE

Ref. No. Description

43A Cover, Solid–DE

43B Cover, Screen–DE

66B Main Coil Assembly

66C Main Pole

79 Retaining Ring

95 Yoke And Bearing Support–CE

96 Stud And Tube Assembly

97 Coiled Frame

98A Connector–Short

98B Connector–Long

190 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Maintenance Tips

Armature Banding

Incorrect core band tension ia a common cause of armature failures. A loose band will allow the coils

to move and abrade, causing a short or ground. Proper tension should draw the coils to about

one–third of the banding groove height. Under no circumstances should the tape rest on the bottom

of the groove.

Recommended absolute pressures for glass tape of the armature core:

3/8 wide 30 end 200–225 lbs.

3/4 wide 60 end 400–450 lbs.

The armature should be preheated to 120˚C. The tension device must be able to maintain tape

pressure when stopped.

Bearings

Grease–Generally used is GE D6A2C5, lithium soap base. Do not use grease with EP designation and

do not mix greases. EP designated greases should not be used on DC motors. The additives work at

elevated temperatures above the normal capability and the grease materials may deteriorate the

winding insulation.

Oil Leaks–Sleeve bearing housings are designed with vent passages to equalize air pressure on both

sides of the bearing. Blockage of vents can cause oil leakage.

Warning: Ensure all power has been removed from the machine before performing maintenance.

To Replace Bearings–

1. First verify that the bearings are the problem. Symptoms may include contaminated oil, excessive

vibration, noise, or heat.

2. Lubricate each bearing before installing: speeds below 1200 RPM use 300 SSU (Saybolt Seconds

Universal) oil. Use 150 SSU oil for speeds above 1200 RPM.

3. Check for damaged seals and rings. Replacements are available from GE Support Services.

Warning: Ensure all power has been removed from the machine before performing maintenance.

Blower Impellers

These will move air in either direction of rotation. Make sure that the rotation maximizes air flow.

Blower Kit Modification

–Comm end mount, F1 or F2, 230/460V, 3 Phase, 60 Hz. For other requirements, refer to GE Support

Services.

–CD180AT machines require drilling and tapping of mounting holes.

–Check the direction of rotation of the impeller before placing motor into service.

–Air flow may be reduced up to 30% due to accumulation of dirt on the impeller blades.

–Maximum air rise through the machine is 25˚C.

Brushholder Replacement

Brush Box Height–Brush boxes are set .070–.080” above the commutator diameter on all GE Industrial

DC motors, CD210AT–CD9000.

Brushholder setting spacers are available through GE Support Services to ensure uniform height

above the commutator:

PT#36A178125AA001 for CD580AT–CD9000

PT#36A178125AA002 for CD210AT–CD500AT

Cleaning brushholder springs by sand blasting may erode spring material changing the force constant

and may introduce sand into the motor.Glass beading brushholder springs is acceptable.

Warning: Ensure all power has been removed from the machine (e.g., lock out/tag out) before checking brush box

heights.

Medium DC Motors 191



GE Support Services

7–Medium DC

Enclosures

–DPFG, SPFG, TEFC, TAEO constant torque to 60% base speed

–TEUC, TEWC constant torque to 40% base speed

–BV, SV constant torque to 5% base speed

Endplay

Always measure with dial indicator.

Motors: MD600–800 .109 – .172”

Kinamatic I .005 – .040”

Kinamatic II–2 Pole .005 – .040”

Kinamatic II–4 Pole .000 – .015”

CD580 .029 – .044”

CD680 .037 – .052”

Field, Commutating

Commutating Pole Shims–When maintaining large DC machines, it is important to keep the same

number of shims between the magnet frame and the pole. The order of the shims is also important to

maintain magnetic balance. The correct order of the shims, starting from the comm pole out is:

1. Thick steel shims (.125” thick)

2. Thick aluminum shims (.125” thick)

3. Thin aluminum shims

4. Thin steel shims

The thin steel shims should rest against the frame.

Field, Data

– N/P volts = N/P current x N/P resistance x heat factor (1.39 Class F)

(1.29 Class B)

Field, Kinamatic II Connections Information

The field data listed on the nameplate with two field voltages assumes high voltage excitation. The

field amps are listed for base speed and weak field speed. Resistance is given for series connection

(one circuit) at 25˚C. If operating at low voltage (two circuit), field data must be adjusted. Multiply

the field amps by two and divide the field resistance by four. All data is given hot, except the field

resistance.

Field, Main

– Up to 110% excitation…within speed and load capability of the armature

– Limit current to 50% maximum…armature at standstill or no blower use field economy relay

– Resistance increase of 40% not uncommon from cold to hot

Field, TREC Coils

Bonding New Coils to Poles–

1. Note the vertical position of the original coil on the pole and the position of the leads.

Repositioning coils exactly on the pole is critical to the machine performance.

2. When bonding new coils to poles, first travel bonding compound directly to the pole, ensuring

adequate compound fills 100% of the space between the coil and pole. Center the new coil on the

pole and position the coil as noted in Step #1. GE Support Services recommends EPC PREG X93C

1961 bonding compound, which can be purchased through Epic Resins at 1–800–242–6649.

Recommended cure time is 6 hours at 165˚C.

3. Be sure to replace all magnetic pole shims in their original order.

Warning: Ensure all power has been removed from the machine before performing maintenance.

Maintenance Tips

192 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Maintenance Tips

Filler

Filler compound for hand wound equalizers is DOLPH CW–340–1 stator compound.

Ref: A50CD157A, 905A999AC218 purchase locally.

Filters

Kinamatic II: Numbers are molded in the plastic caps. The following identifies the filter number.

36A173048AAH01 – 36A173049AAH01 = FILTER #37A173047AAG01

36A173048AAH02 – 36A173049AAH02 = FILTER #37A173047ABG01

36A173048AAH03 – 36A173049AAH03 = FILTER #37A173047ACG01

36A173048AAH03 – ONE END ONLY = FILTER #37A173047ADG01

Miscellaneous

– Torque = (horsepower x 5252) divided by base speed

– Air rise = air exhaust temperature minus air intake temperature in degrees C

(25 degrees C is considered high)

Molded Commutators

Molded commutator construction has been a feature of GE Motors for about twenty–five years.

Molded commutators have proven to be a reliable and stable design. The use of molded commutators

is being expanded. Heating of the replacement commutator is not generally required for a successful

installation.

CD180AT –Comm is cemented to shaft, cold.

CD210AT–CD320AT –Comm is furnished on an aluminum shell. Press on cold.

CD360AT–CD500AT –Comm is furnished on a cast iron shell. Permissible to preheat

to 150˚C to install.

Caution: Avoid excessive/uneven heating.

Motor Heating

Rule of thumb is that the air rise through the motor should be a max of 25 degree C. The allowable

ampere rating of a drip proof motor drops significantly at speeds less than 60%. See heating curves.

Normal Environment

– Temperature 0 to 40 degrees C (32 to 104 degrees F)

– Humidity 40 to 99%

– Altitude less than3300 feet

– Loading 20 to 100% + occasional 150% current (100% base speed)

occasional = 1 min or less, not part of regular duty cycle

– Starting 250% full load current – CD180AT thru CD5010AT

300% full load current – CD4000

less than 10 seconds, not stalled

Paint

GE motors gray paint is a standard ASA#49.

Pedestal Pads

Pedestal pads on drag line sets are small molded plastic pads used to guide oil rings. There are 2 per

pedestal. 36A160583AA001

Medium DC Motors 193



GE Support Services

7–Medium DC

Maintenance Tips

Sealant

Silicone, RTV, or Bathtub Seal/Caulking is not recommended for sealing DC motors. The silicone

compounds destroy brushes, use “Titeseal” sealing compound GE MOTORS #8064200000

Titeseal

Titeseal is the preferred sealant used on waterproof motors to seal fits and bolts. It is non–hardening,

non–silicone. GE#8064200000.

Viton Protection

Viton protection kit for glass bound commutators – protects new bands from contamination. Kit is part

36A173329AAG02. Apply two coats of DOLPH ER41 (not included) over Viton.

DOLPH ER–41

This is the insulating enamel used for pole face connections.

Serial Number

Serial numbers for motors are stamped in the frame, usually near lift lugs.

Shaft Grounding Brushes

Voltage spikes from some static DC drives can be high enough to damage the bearings. One solution is

to mount a brush on the shaft which grounds the voltage. These are constant pressure.

Motor Frame Ground Brush Kit Comments

CD2800 36B472160GGG02 DE OUTSIDE W/LABYRINTH

CD280AT 36B472160GBG05 DE OUTSIDE W/LABYRINTH

CD320AT 36B472160GBG04 DE OUTSIDE W/LABYRINTH

CD360AT 36B472160GBG01 DE OUTSIDE W/LABYRINTH

CD400AT 36B472160GBG02 DE OUTSIDE W/LABYRINTH

CD500AT 36B472160GBG03 DE OUTSIDE W/LABYRINTH

CD5010 36B472160GBG07 DE OUTSIDE W/LABYRINTH

CD4000/6000 36B472712AAG01 DE INSIDE NO LABYRINTH

Grounding brushholder with brush and spring – 36A180199AA001

Replacement brush only – 36A180199AA003

Speed Variation

– Plus or minus 7.5% at rated armature voltage and field current

– Not to exceed 15% full load (cold) to full load (hot) ––ventilated

– Not to exceed 20% full load (cold) to full load (hot) ––totally enclosed

Tachometer

Kit Modification

–The center hole of the motor shaft should not be used to locate the stub shaft for coupling.

–CD180AT TENV, CD180AT TEFC, and CD210AT TEFC motors should be reviewed by GE Support

Services.

–BC tach kits will mount 56C face (5/8” shaft) tachs, such as Aviron (M738), Dynapar (62P), and

Lakeshore (6200).

–Older helical spring–type couplings can be replaced with up–to–date Thomas flexible disc–type

couplings.

Tachometers Type AN–DC

Tachometers type AN–DC use brush 36B467072AA003, Qty 4 per motor.

194 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Maintenance Tips

Thermostats

Thermostats are generally attached to the Comm Coil with a two part high temp epoxy.

GE #905A999AC222 generally a class F epoxy will work.

Unit Coolers

Unit coolers supplied on DC motors are not waterproof.

Weight of Steel

.28 lb per cubic inch.

Wire

Non–Magnetic banding steel wire is no longer used by GE Motors.

Medium DC Motors 195



GE Support Services

7–Medium DC

Standard Brushholders with Springs and

Springs Only

Spring Identification by Brushholder Number

36A160421AAG02 36B465481AA001

36A160421AAG03 36B465481AA001

36A160422AAG02 36B465482AA001

36A160422AAG03 36B465482AA001

36A160422AAG04 36B465482AA001

36A160423AAG02 36B465483AA001

36A160423AAG03 36B465483AA001

36A160423AAG05 36B465483AA001

36A160424AAG01 36B465484AA001

36A160424AAG03 36B465484AA001

36A160425AAG01 36B465485AA001

36A160425AAG03 36B465485AA001

36A160426AAG01 36B465486AA001

36A160426AAG02 36B465486AA001

36A160426AAG03 36B465486AA001

36A160427AAG01 36B465487AA001

36A160427AAG02 36B465487AA001

36A160427BAG01 36B465487AA001

36A161101AAG01 36B465081AA001

36A161101AAG03 36B465081BA001

36A161101AAG04 36B465081AA001

36A161101AAG05 36B465481AB001

36A161102AAG01 36B465082AA001

36A161103AAG01 36B465083AA001

36A161971AAG01 36B465081AA001

36A161973AAG01 36B465083AA001

36A167280AAG01 36B467020AA001

36A167281AAG01 36B467021AA001

41C631160G02 337B689 G01

428C682 G02 337B689 G01

428C683 G02 337B689 G01

428C685 G01 41B533105G01

428C685 G02 41B533105G01

428C686 G01 337B689 G01

428C686 G02 337B689 G01

428C687 GO2 337B689 G01

428C689 GO2 337B689 G01

428C694 GO1 36B465487AA001

428C694 GO2 36B465487AA001

428C695 GO1 337B689 G01

428C695 GO2 337B689 G01

428C697 GO1 337B689 G01

428C697 GO2 337B689 G01

527B837 GO1 9973178 001

527B837 GO2 9973178 001

527B837 GO3 9973179 001

527B837 GO4 9973179 001

5980811 G01 2415295 001

5980811 G02 2415896 001

5980811 G03 2415296 001

5980822 G01 2415295 001

5980822 G02 2415896 001

5980822 G03 2415296 001

5980924 G01 2415295 001

5980924 G02 2415896 001

5980924 G03 2415296 001

608C878 G01 626B204 G01

692B656 G01 265A236 001

692B656 G02 265A237 001

692B656 G03 265A238 001

894A627 G01 626B202 G01

894A627 G02 626B203 G01

894A627 G03 626B203 G01

894A627 G04 767B958 G01

894A684 G01 626B204 G01

894A684 G02 626B204 G01

894A684 G03 626B205 G01

894A684 G04 626B206 G01

894A684 G05 626B207 G01

Brushholder w/Spring Spring Only Brushholder w/Spring Spring Only

196 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Commutators

Check Chart for Comparing Commutator Surface Markings

Satisfactory Commutator Surfaces

LIGHT TAN FILM over entire commutator

surface is one of many normal conditions

often seen on a well–functioning machine.

MOTTLED SURFACE with random film

pattern is probably the most frequently

observed condition of commutators in

industry.

SLOT BAR–MARKING, a slightly darker

film, appears on bars in a definite pattern

related to number of conductors per slot.

HEAVY FILM can appear over entire area

of efficient and normal commutator and, if

uniform, is quite acceptable.

STREAKING on the commutator surface signals the

beginning of serious metal transfer to the carbon brush.

Check the chart below for possible causes.

THREADING of commutator with fine lines results when

excessive metal transfer occurs. It usually leads to

resurfacing of commutator and rapid brush wear.

COPPER DRAG, an abnormal build–up of commutator

material, forms most often at trailing edge of bar.

Condition is rare, but can cause flashover if not checked.

PITCH BAR–MARKING produces low or burned spots on

the commutator surface. The number of these markings

equals half or all the number of poles on the motor.

HEAVY SLOT BAR–MARKING can involve etching of

trailing edge of commutator bar. Pattern is related to

number of conductors per slot.

GROOVING is a mechanical condition caused by

abrasive material in the brush or atmosphere. If grooves

form, start corrective action.

x x x x x x

x x x x

x x

x x x x

x x x x x

x x x

HOW TO GET THE MOST VALUE FROM THIS CHART

The purpose of the Commutator Check Chart is to help you spot undesirable commutator conditions as they develop so you can take corrective action before the

condition becomes serious. This chart will also serve as an aid in recognizing satisfactory surfaces.

The box chart above indicates the importance of selecting the correct brush and having the right operating conditions for optimum brush life and commutator wear.

For additional information or help with carbon brush application or commutation problems, contact your nearest GE Sales Office or Distributor.

Watch for These Danger Signs

Medium DC Motors 197



GE Support Services

7–Medium DC

Glass Bound Comms have reached their

minimum diameter when there is not enough

copper above the bands to allow undercutting

without cutting the bands.

Commutators

Minimum Diameters

Kinamatic I

FRAME MAX MIN

CD180A 2.75 2.38

CD210A 3.25 2.88

CD250A 4.50 4.00

CD280A 4.75 4.25

CD320A 6.62 5.12

CD360A 6.38 5.75

CD400A 7.12 6.50

CD440A 7.88 7.25

CD500A 9.00 8.25

Kinamatic II

FRAME MAX MIN

CD180AT 2.76 2.63

CD210AT 4.50 4.27

CD250AT 5.00 4.75

CD280AT 5.78 5.49

CD320AT 6.50 6.17

CD360AT 7.50 7.13

CD400AT 8.32 7.92

CD500AT 10.25 9.75

K3 3.50 3.32

CD2512/13 5.30 5.02

CD2812/13 5.96 5.66

MD800 Glass Bound

FRAME MAX MIN

MD802 6.38 6.00

MD803 7.12 6.75

MD804 7.88 7.50

MD806 7.88 7.50

MD808 9.00 8.50

MD810 10.00 9.44

MD812 11.25 10.62

MD814 12.50 11.88

MD816 14.50 13.75

MD818 16.00 15.25

MD820 17.00 16.25

MD822 19.50 18.62

MD824 19.500 18.62

MD828 22.00 21.14

MD600 Cap & Cone

FRAME MAX MIN

MD603 6.38 5.75

MD603 7.00 6.38

MD604 7.50 6.75

MD606 8.50 7.62

MD608 9.62 8.62

MD610 10.62 9.50

MD612 11.75 10.62

MD614 13.25 12.12

MD616 15.00 13.38

MD618 16.62 15.38

MD620 17.00 16.00

MD622 19.00 17.75

MD624 22.50 21.25

MD400 Cap & Cone

FRAME MAX MIN

MD402 4.75 4.00

MD403 5.50 5.00

MD404 5.50 5.00

MD406 6.50 5.87

MD408 8.25 7.62

MD410 9.50 8.50

MD412 10.12 9.18

MD414 11.00 10.12

MD416 13.87 12.68

MD418 15.75 14.31

MD420 18.00 16.56

MD422 22.00 20.62

MD423 22.00 10.62

CD4000

FRAME MAX MIN

CD4300 11.50 11.00

CD4400 13.00 12.30

CD4500 15.00 14.25

CD4600 18.00 17.10

CD4700 22.00 20.90

CD6000 11.50 11.00

CD6100 13.00 12.30

CD6200 15.00 14.25

CD6700 19.50 18.50

CD6800 22.00 21.00

CD6900 22.00 21.00

CD1100–1700

FRAME MAX MIN

CD1100 8.00 7.25

CD1200 9.00 8.25

CD1300 10.25 9.50

CD1400 11.50 10.50

CD1500 13.25 12.25

CD1600 15.12 14.12

CD1700 18.00 16.75

CDS

FRAME MAX MIN

CDS103 8.00 7.25

CDS113 8.00 7.25

CDS115 9.00 8.25

CDS123 10.25 9.50

CDS133 11.50 10.50

CDS135 11.50 10.50

CDS173 13.25 12.25

CDS176 13.25 12.25

CDS177 13.25 12.25

CDS179 13.25 14.12

MCF 15.12 14.12

CD580–9000

FRAME MAX MIN

CD580 10.75 10.25

CD680 12.50 12.00

CD5000 14.50 13.88

CDS5000 14.50 13.88

CD6000* 17.00 16.25

CDS6000 14.50 13.88

CD7000 19.50 18.62

CDS7000 19.50 18.62

CD8000 22.00 21.00

CDS8000 19.50 18.62

CD9000 22.00 21.00

* Also see CD6000–6900

MDY

FRAME MAX MIN

MDY441 5.50 4.87

MDY442 8.50 7.87

MDY443 5.50 4.87

MDY444 5.50 4.87

MDY445 8.00 7.12

MDY446 8.50 7.62

MDY448 8.00 7.12

MDY449 5.50 4.87

MDY501 7.50 6.75

MDY502 5.50 4.87

MDY510 11.75 10.75

Amplidyne

FRAME MAX MIN

AM602 3.37 3.12

AM604 3.87 3.50

AM610 5.12 4.87

AM614 5.12 4.87

AM628 6.75 6.50

EDF

FRAME MAX MIN

EDF73 6.00 5.25

EDF83 6.37 5.755

EDF93 7.25 6.25

EDF95 7.25 6.25

EDF–4 8.22 7.50

EDF 165KW 8.22 7.50

5B––/CD––

FRAME MAX MIN

220 3.37 3.12

250 4.50 4.25

280 4.75 6.25

60 5.12 4.75

70 6.00 5.62

80 6.75 6.25

90 7.12 6.62

MPC/MCF Generators

FRAME MAX MIN

MPC500 14.50 13.88

MPC600 14.50 13.88

MPF700 19.50 18.62

MPF800 19.50 18.62

MD100

FRAME MAX MIN

MD101 5.00 4.56

MD102 6.50 5.85

MD103 7.00 6.18

MD104 7.00 6.25

MD104 1/2 9.00 7.87

MD105 10.50 9.25

MD106 11.50 10.00

MD107 13.00 11.62

MD108 14.00 12.56

MD109 20.00 18.43

MD109 1/2 20.00 18.56

MD110 22.00 20.68

FRAME MAX MIN

CO1803 4.75 4.12

CO1804 5.50 4.87

CO1805 5.50 4.87

CO1806 6.50 5.87

CO1807 8.25 7.62

CO1808 8.25 7.62

CO1809 9.50 8.62

CO1810 9.50 8.50

CO1811 11.00 10.12

CO1812 11.00 10.12

CO1822 4.37 3.62

CO1823 4.75 4.00

CO1824 5.50 4.87

CO1825 5.59 4.87

CO1826 6.50 5.87

CO1827 8.25 7.50

CO1828 8.25 7.25

CO1829 9.50 8.62

CO1830 9.50 8.50

CO1831 11.00 10.00

CO1832 11.00 10.12

CO2502 3.25 2.74

CO2503 4.00 3.37

CO2504 4.75 3.25

CO2505 6.50 5.87

CO2506 7.00 6.25

CO2507 8.00 7.25

CO2508 11.00 10.12

198 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Commutators

Glass Banded

Medium DC Motors and Generator’s standard commutator on larger machines from 300HP and above is

made of glass banded construction. The copper and insulation segment pack has grooves machined

between brush paths for application of high tension glass banding tape. This tape continually applies

tension on the segment pack during service to maintain excellent stability at high speed. The shell

consists of steel and covered with mica to provide ground insulation for the segment pack. An

interference fit exists between the insulated shell and segment pack. Both open (separate piece) and

closed (solid) risers are used. Band protection is provided by Viton (blue coating) to resist contamination

that may attack bands. Solvent cleaning should not be used on commutators as contamination can be

washed under the bands which could burn and deteriorate the bands from underneath which could lead

to band failure.

GLASS BAND

IN GROVES (4)

INSULATION

LAYER

SHAFT

BRUSH

TRACKS (3)

STEEL

SHELL

RISER

Medium DC Motors 199



GE Support Services

7–Medium DC

Commutators

Cap and Cone or V–Ring

This construction is typically used on smaller horsepower machines or ones specifically ordered for steel

or papermill applications. The segment pack has “V” grooves machined into the ends. The inner

clamping side has a thirty degree angle and outer clearance side a three degree angle. Mica cones insulate

the segment pack from the steel shell and provide ground support. The steel clamp rings are held in

tension by studs with nuts or long bolts. During manufacture, the commutator is pressed together and the

studs tightened. While this construction is not as stable for high speed as a glass banded commutator, the

design is a rugged one and repairability is often performed by users.

SHAFT

STEEL

CLAMP RING

(CAP)

BRUSH

TRACK

MICA CONE

(EACH END)

STEEL

CLAMP RING

(CAP)

RISER

30O

3O3O

STUD

200 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Commutators

Interlocking

A relatively new design of commutator is called the interlocking commutator. The copper segments have

integral dovetails which are inserted into the steel shell with a matching dovetail. Mica insulation is then

inserted between the copper segments and the segment pack is subjected to high circumferential pressure

while epoxy compound is injected into the space between the shell and segment pack. The epoxy

provides both the bond and ground insulation for the segment pack. The result is a very high quality

commutator for high speed use.

This commutator is used on the CD360–5010 motor line.

EPOXY

SHELL

Medium DC Motors 201



GE Support Services

7–Medium DC

Commutators

Molded

For cost purposes, the smallest machines use a molded style commutator. These machines are very

standardized, high volume, and low cost. The copper and insulation pieces are normally punched out

with a notch in the center. Following stacking , an epoxy compound is injected to form the shell. This

commutator is not repairable and the design is cost effective and adequate for most small motor

applications.

EPOXY

COMPOUND

RAISERS

SHAFT

BRUSH

TRACK

202 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Field Modification Kits, Frames CD180AT to CD5010AY

Custom Modification Kit

Custom modification kits allow modification of Kinamatic motors which have been shipped from the

factory. They are designed for maximum flexibility and ease of installation, and are stocked by authorized

GE Motors parts distributors to provide immediate availability.

The quick kit reference on the following pages lists the numbers of the most commonly used accessory

kits and modification by frame size. Field modification kits cannot be mounted on all frame sizes or

enclosures. Please review the application information carefully to determine availability. Contact GE

Support Services or your GE Motors parts distributor for kit prices. The information given is not to be

used for new motor specification.

Application Information

Blower Kits

Blower kits are designed for standard mounting on the motor commutator end and for addition only to

dripproof fully guarded, separately ventilated motors. Blower motors are 230/460 volt AC, 3 phase, 60

hertz. To properly mount a blower kit on CD180AT frames, drilling and tapping of three holes is required.

Tachometer Kits

Tachometer kits are designed to be mounted on motors with an accessory comm end shaft extension of

any fully guarded or totally enclosed Kinamatic motor, with the exception of totally enclosed fan cooled

(TEFC) machines. Tach adapters are made of cast iron and are supplied with appropriate covers. Refer to

GE Support Services for mounting of tachometer kits on TEFC motors. Note: Type BC and Type PY

tachometers must be ordered independently of the tachometer kits less tachometer.

Type C Face Endshield Kits

Type C Face endshield kits are designed for mounting on the fully guarded or totally enclosed

nonventilated (TENV) frames listed below. Addition of Type C Face endshield kits requires machine

disassembly by a qualified service facility. For frames CD218AT–CD2110AT, refer to GE Support Services.

Sliding Bases

Sliding bases are suggested as a convenient means for adjusting belt tension or may be used as mounting

plates. (For horizontal mounting only–not available for ceiling or sidewall mounting. Sliding bases not

available on CD6000 frames and above.)

Frame Standard C Face

Series Dimension (in inches)

CDL182AT 8.5

CD287AT & CD288AT 10.5

CD327AT & CD328AT 12.5

Medium DC Motors 203



GE Support Services

7–Medium DC

Field Modifications/Accessories

Field Modification Kits, Frames CD180AT to CD5010AY

Frame Blower Kit Blower Kit C–Face Lexan Covers 5

Series Less Filter 1with Filter 1Kit 3(Qty. 2 required)

CDL182AT–CD189AT 36A167741CAG01 236A167741CBG01 2 4 NOT AVAILABLE

CD218AT–CD2110AT 36A167742AAG02 36A167742ABG02 36A172472AAG01 36A167802BAG02

CD258AT–CD259AT 36A167743AAG02 36A167743ABG02 36A172473AAG01 36A167803BAG02

CD2512AT–CD2513AT 36A171113AAG02 36A171113AAG01 36A172476AAG01 36A167804BAG02

CD287AT–CD288AT 36A167744AAG03 36A167744ABG03 36A172474AAG01 36A167805BAG02

CD2812AT–CD2813AT 36A171114AAG02 36A171114AAG01 36A172477AAG01 36A167806BAG02

CD327AT–CD328AT 36A167745GAG10 36A167745GBG10 36A172475AAG01 36A167806BAG02

CD365AT–CD368AT 36A167746GAG10 36A167746GBG10 NOT AVAILABLE 36A167807BAG02

CD407AT & CD409AT 36A167747GAG10 36A167747GBG10 NOT AVAILABLE 36A167809BAG02

CDL407AT & CDL409AT 36A167747GCG10 36A167747GDG10 NOT AVAILABLE 36B473083CAG01

CD504AT–CD5010AY 36A167749EAG30 36A167749EBG34 NOT AVAILABLE 36B473084CAG01

Application Information

Full Load Full Load

Frame HP Volts 8Hertz Phase RPM Amperes HP Volts 7Hertz 8Phase 6RPM Amperes 7

CD180AT 1/12 230/460 60 3 3600 .53/.25 1/12 380 50 3 3000 .3

CD210AT 1/12 230/460 60 3 3600 .53/.25 1/12 380 50 3 3000 .3

CD258AT, CD259AT 1/12 230/460 60 3 3600 .53/.25 1/12 380 50 3 3000 .3

CD287AT, CD288AT 1/3 200–230/460 60 3 3600 1.8/.9 1/3 380 50 3 3000 .76

CD320AT 1 200–230/460 60 3 3600 3.6/1.8 1 380 50 3 3000 1.6

CD360AT 1 200–230/460 60 3 3600 3.6/1.8 1 380 50 3 3000 1.6

CD400AT 1 200–230/460 60 3 3600 3.6/1.8 1 380 50 3 3000 1.6

CD504AT–CD5010AY 2 200–230/460 60 3 1800 5.8/2.9 2 380 50 3 1500 3.0

CD2512AT, CD2513AT 1 200–230/460 60 3 3600 3.6/1.8 1 380 50 3 3000 1.6

CD2812AT, CD2813AT 1 200–230/460 60 3 3600 3.6/1.8 1 380 50 3 3000 1.6

CD6000 5 230/460 60 3 1800 13.4/6.7 3 380 50 3 1500 5.2

CD6100 7.5 230/460 60 3 1800 19.6/9.8 5 380 50 3 1500 8

CD6200 10 230/460 60 3 1800 25.2/12.6 7.5 380 50 3 1500 11.4

CD6700 15 230/460 60 3 1800 38.8/19.4 10 380 50 3 1500 15.8

CD6800 < =1500 HP 15 230/460 60 3 1800 38.8/19.4 10 380 50 3 1500 15.8

> 1500 HP 15

CD6900 < =2000 HP 20 230/460 60 3 1800 49.6/24.8 15 380 50 3 1500 22.4

> 2000 HP 20 > 15

REFER TO GE MOTORS

6The use of a 50 Hertz blower may affect motor frame size and will affect motor price and delivery. Refer to GE

Motors for use of 50 Hertz blowers.

7 Full load amperes for blower motors are typical values.

8 Suitable for operation with up to plus or minus 10% variation from rated voltage (i.e. 207–253V/414–506V, 60Hz;

342–418V, 50Hz).

1 Blower motor is 230/460 volt AC, 3 phase, 60 hertz.

2 Requires drilling and tapping of three holes to install.

3 Requires motor disassembly by qualified service facility to install.

4 For dripproof motors use 36A172471AAG02. For totally enclosed motors use 36A172471AAG01.

5 For commutator end only.

*1750 RPM or lower

A. Standard Separately Ventilated

Air in one CE opening with solid covers on the other CE openings. Standard louvered covers on DE air outlets.

B. Enclosed Separately Ventilated (Air ducted in and air ducted out)

Air in one CE opening with solid covers on the other CE opening. Air out one DE opening.

C. Blown from Drive End

Air in one DE opening with solid covers on the other DE openings. Standard louvered covers on CE air outlets.

204 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Air Flow Requirements for Separately Ventilated Motors

Static Pressure Inches of Water

A B C

Base Standard Enclosed Blown

Speed Separately Separately from

Frame RPM CFM Ventilated Ventilated Drive End

CD180AT 3500 70 1.0 1.0

2500 50 0.6 0.6

1750* 35 0.3 0.3

CD210AT 3500 180 1.6 2.96 3.7

2500 130 0.8 1.5 1.9

1750* 90 0.4 0.74 0.9

CD250AT 3500 320 1.8 3.28 4.0

2500 230 0.86 1.66 2.0

1750* 160 0.45 0.82 1.0

CD280AT 3500 540 2.16 3.92 4.3

2500 385 1.04 1.96 2.4

1750* 270 0.54 0.98 1.2

CD320AT ALL 650 2.0 3.2 3.0

CD360AT ALL 610 2.2 3.9 3.4

CD400AT ALL 830 2.6 3.65 4.0

CD504AT–CD5010AY ALL 1425 3.0 4.1 3.8

CD2512AT, CD2513AT ALL 300 4.85 6.1

CD2812AT, CD2813AT ALL 455 4.8 5.64

Static

Base Pressure

Speed Inches of

Frame HP RPM CFM Water

CD6000 ALL ALL 2400 3

CD6100 ALL ALL 3400 3

CD6200 ALL ALL 4000 5

CD6700 ALL ALL 5000 5

CD6800 ≤1500 ALL 6200 5

>1500 ALL 8000 8

CD6900 ≤2000 ALL 7500 5

>2000 ALL 10000 9

CDF1800 ALL ALL 8000 3

CDF1900 ≤1500 ALL 6000 2

<3000 ALL 8000 3

≤4500 ALL 12000 5.5

CDF2000 ≤1500 ALL 6000 2

<3000 ALL 10500 4.5

≤4500 ALL 13500 5.5

NOTE: Airflows are for clean dry air less than 40˚C

(104˚F) and at altitudes less than 1000M. (3330 FT).

CE–Commutator End ESV–Enclosed Separately Ventilated

DE–Drive End SV–Separately Ventilated

*Motors are shipped with solid covers on both sides and top and bottom.

Any DE cover may be removed for air entry and any CE cover for air exit. If

a transparent cover is ordered, it will be located on the CE, conduit box side.

**If a transparent cover is ordered, air exit is opposite conduit box side and

bottom. If no transparent cover is ordered, air is exited on both sides.

WARNING: The static pressure values listed in the

tabulations are based upon standard air inlet and

standard air outlet utilization. The static pressure

will be higher if either the air inlet or outlet

openings are restricted or reduced in size or, in the

case of air outlets, reduced in number.

CD5010AY & Below CD6000 & Above

ESV SV ESV SV

Standard Air CE TOP CE TOP DE* DE*

Inlet Location

Standard Air DE DE Side & CE* CE**

Exit Location (either side) Bottom

Medium DC Motors 205



GE Support Services

7–Medium DC

Field Modifications/Accessories

Field Modification Kits, Frames CD180AT to CD5010AY

FRAME PY TACH KIT SERVO–TEK TACH KIT THERMOSTAT

SERIES (LESS TACH) (LESS TACH) KIT

CD146ATC–CD1412ATC 893A690AAG01 893A666AAG01 893A659AAG01

AN–AC TACH ANDG240A4 9ANDG240D4 9

FRAME PY TACH KIT BC TACH KIT 45/90V/1000 RPM 240 PPR 240 PPR

SERIES (LESS TACH) (LESS TACH) (INCLUDES TACH) (INCLUDES TACH) (INCLUDES TACH)

CDL182AT–CD328AT 36A167701AAG01 36A167700AAG01 36A167702AAG01 36A167712AAG04 36A167713AAG04

CD2512AT–CD2813AT 36A167701AAG01 36A167700AAG01 36A167702AAG01 36A167712AAG04 36A167713AAG04

CD365AT–CD368AT 36A167701BAG01 36A167700BAG01 36A167702BAG01 36A167712BAG04 36A167713BAG04

CD407AT–CDL409AT 36A167701CAG01 36A167700CAG01 36A167702CAG01 36A167712CAG04 36A167713CAG04

CD504AT–CD5010AY 36A167701CAG01 36A167700CAG01 36A167702DAG01 36A167712DAG04 36A167713DAG04

AN–DG240L3 AN–DG240L4 AN–DG600L3 AN–DG600L4

FRAME 240 PPR 240 PPR 600 PPR 600 PPR

SERIES ONE OUTPUT DUAL OUTPUT ONE OUTPUT DUAL OUTPUT

CDL182AT–CD328AT 36C706050DA001 36C706050DB001 36C706050DC001 36C706050DD001

CD2512AT–CD2813AT 36C706050DA001 36C706050DB001 36C706050DC001 36C706050DD001

CD365AT–CD368AT 36C706050AA001 36C706050AB001 36C706050AC001 36C706050AD001

CD407AT–CDL409AT 36C706050AA002 36C706050AB002 36C706050AC002 36C706050AD002

CD504AT–CD5010AY 36C706050AA003 36C706050AB003 36C706050AC003 36C706050AD003

DC PY TACH ONLY DC BC42 TACH ONLY DC BC46 TACH ONLY

(USES PY KIT) (USES BC KIT) (USES BC KIT)

50V/1000 RPM 897A594–002 50V/1000 RPM 897A590–032 50V/1000 RPM 897A591–041

100V/1000 RPM 897A594–001 100V/1000 RPM 897A590–024 100V/1000 RPM 897A591–029

9Bi–directional, dual output.

Sliding Base, Frames CD180AT to CD5010AY

FRAME SLIDING

SERIES BASE

CDL182AT 533C400–034

CD186AT 533C400–001

CDL186AT 533C400–001

CD189AT 533C400–023

CD218AT 533C400–019

CD219AT 533C400–022

CD2110AT 533C400–039

CD258AT 533C400–040

CD259AT 533C400–041

FRAME SLIDING

SERIES BASE

CD2512AT 533C400AH001

CD2513AT 533C400AH002

CD287AT 533C400–020

CD288AT 533C400–042

CD2812AT 533C400AH003

CD2813AT 533C400AH004

CD327AT 533C400–043

CD328AT 533C400–044

CD365AT 533C400–011

CD366AT 533C400–012

CD368AT 533C400–046

FRAME SLIDING

SERIES BASE

CD407AT 533C400–047

CDL407AT 533C400–047

CD409AT 533C400–048

CDL409AT 533C400–048

CDL504AT 533C400–017

CD504AT 533C400–017

CDL506AT 533C400–049

CD506AT 533C400–049

CD508AT 533C400–050

CDL508AT 533C400–050

CD5010AT 533C400AK001

206 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Accessories and Modifications, CD180AT–CD6900

Description

Tachometer Generator Equipment

On CD180AT or CD210AT fan cooled motors or where other accessories will be mounted on the motor,

refer to GE Support Services to assure that the tachometer mounting can be accommodated. Refer to GE

Support Services for use of tachometers on crane motors. Refer to appropriate section of Application

Manual for indicating or regulating accuracy.

Speed Ranges

The following tachometer generator operating speeds are available with listed items:

Type Tachometer Output Operating Range

BC42 50 Volts/1000 RPM 100–5000 RPM

100 Volts/1000 RPM 100–2750 RPM

50 Volts/1000 RPM 100–5000 RPM

BC46 100 Volts/1000 RPM 100–3600 RPM

200 Volts/1000 RPM 100–1800 RPM

Form Y 50 Volts/1000 RPM 100–5000 RPM

100 Volts/1000 RPM 100–2500 RPM

AN–AC 90 Volts/1000 RPM 100–5000 RPM

AN–DG 240 pulses/revolution 0–5000 RPM

600 pulses/revolution 0–5000 RPM

BC tachometers produce DC output to

provide high accuracy speed regulation or

speed indication. PY tachometers provide a medium accuracy DC output

for use with a regulated drive or for speed indication.

AN Series tachometers provide a

compact construction with

thru–shaft capabilities. The AN

Series tachometers can be

furnished with either AC or

digital output signal for speed

regulation or speed indication.

(Type AN–DG tachometer

shown above.)

Medium DC Motors 207



GE Support Services

7–Medium DC

Field Modifications/Accessories

Accessory and Mountings, Frames 180AT to 5010AY

208 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Accessory Mountings, Frames 6000 to 6900

Medium DC Motors 209



GE Support Services

7–Medium DC

Field Modifications/Accessories

Accessory Couplings, Frames 180AT to 500AT and 6000 to 6900

210 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Accessory Adapters, Frames 180AT to 500AT and 6000 to 6900

Medium DC Motors 211



GE Support Services

7–Medium DC

Field Modifications/Accessories

Speed Limit Device, Frames 180AT to 6900

212 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Type AN Tachometer Generators, Frames 180AT to 6900

Medium DC Motors 213



GE Support Services

7–Medium DC

Field Modifications/Accessories

Lakeshore Tachometer

214 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Avtron Tachometer, Frames 180AT to 6900

Medium DC Motors 215



GE Support Services

7–Medium DC

Field Modifications/Accessories

Avtron M785 & Dynapar 62P Tachometer Generators, Frames 180AT to 6900

216 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Type BC Tachometer Generator, Frames 180AT to 6900

Medium DC Motors 217



GE Support Services

7–Medium DC

Field Modifications/Accessories

Form PY Tachometer Generator, Frames 180AT to 6900

218 DC Motors

For more information contact a GE Motor Parts Master Distributor or GE Support Services.

7–Medium DC

Field Modifications/Accessories

Sliding Base, Frames 180AT to 500AT

CD3610 Acdc Mo 7 Medium Dc

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