Graco 312796R Nxt Air Motor Users Manual Motor, Instructions/Parts, English

M04xxx to the manual 5e0c5530-85ff-44a8-8278-93a32e85ae7b

2015-04-02

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Instructions/Parts

NXT® Air Motor

312796R
EN

For use with high performance finishing and coating pumps in hazardous or
non-hazardous locations. For professional use only.

Models M02xxx, M04xxx, M07xxx, M12xxx, M18xxx, and M34xxx
100 psi (0.7 MPA, 7.0 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. For complete warnings and
instructions see your pump or package
manual. Hazard symbols refer to specific
procedure risks. Save all instructions.
See page 3 for model information.

ti11838a

Related Manuals

Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Component Identification . . . . . . . . . . . . . . . . . . . . 6
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Preventive Maintenance Schedule . . . . . . . . . . . 9
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 9
Repair Air Valve . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replace Pilot Valves . . . . . . . . . . . . . . . . . . . . . 13
Repair Air Motor . . . . . . . . . . . . . . . . . . . . . . . . 13
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Air Motor Parts — All Models . . . . . . . . . . . . . . . . 17
Air Valve Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Kits and Accessories . . . . . . . . . . . . . . . . . . . . . . 21
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Mounting Hole Diagrams . . . . . . . . . . . . . . . . . . . 23
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 26
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 26

2

Related Manuals
Manual

Description

312792

Merkur Displacement Pump

312793

Merkur Bellows Displacement Pump

312794

Merkur Pump Assembly

312795

Merkur Bellows Pump Assembly

312797

Merkur Spray Packages, AA and Airless,
Ambient

312798

Merkur Electrostatic Spray Packages

312799

Merkur Bellows Spray Packages, AA
and Airless

313255

Merkur Heated Spray Packages

312796R

Warnings

Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.

WARNING

FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes are
present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until
you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about
your material, request MSDS forms from distributor or retailer.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just a
cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.

312796R

3

Warnings

WARNING

PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating area
of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes,
burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
• Gloves
• Hearing protection

4

312796R

Models

Models
Check your motor’s identification plate (ID) for the 6-digit part number of your
motor. Use the following matrix to define the construction of your motor. For
example, motor part number M04LT0 represents an air motor (M), with 400
cc displacement, a 3.5 in. piston diameter and a 2.5 in. stroke (04), low noise
exhaust (L), and DataTrak™ monitoring with runaway protection (T). The last
digit (0) is unassigned.

ti12922a

M

04

L

T

0

First Digit

Second and Third Digits
(displacement, piston
diameter x stroke)

Fourth Digit
(Exhaust Type)

Fifth Digit
(Data Monitoring)

Sixth Digit

M

02

200 cc, 2.5 in x 2.5 in.

F* Flush pump

N

04

400 cc, 3.5 in. x 2.5 in.

(limited use)
Low noise

T

07

700 cc, 4.5 in. x 2.5 in.

(Air Motor)

L

P

12 1200 cc, 6.0 in. x 2.5 in.
18 1800 cc, 7.5 in. x 2.5 in.
34 3400 cc, 7.5 in. x 4.75 in.
*

ID

H

None (Compatible with
DataTrak with Cycle Count)
Compatible with DataTrak
with Runaway Protection
Park - Vent valve to be
parked in down position
(compatible with DataTrak
with Cycle Count)
200 cc Motor Compatible
with Linear Sensor

0
(not
assigned)

Uses a smaller muffler. Limited use.

Do not operate the air motor without a plumbed
exhaust line or muffler installed.

Air
Piston
Linear
Motor
Displacement Stroke Diameter, Low
Sensor
Part No. Series
(cc)
(in.)
in. (mm) Noise Compatible

M02LN0
M02LH0
M04LN0
M04LT0
M07LN0
M07LT0
M12FN0
M12LN0
M12LT0
M12LP0
M18LN0
M18LT0
M34LN0
312796R

C
A
D
D
D
D
D
D
D
D
D
D
A

200
200
400
400
700
700
1200
1200
1200
1200
1800
1800
3400

2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
4.75

2.5 (63)
2.5 (63)
3.5 (89)
3.5 (89)
4.5 (114)
4.5 (114)
6.0 (152)
6.0 (152)
6.0 (152)
6.0 (152)
7.5 (191)
7.5 (191)
7.5 (191)

✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔

✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔

DataTrak
Cycle Count
Compatible

✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔

DataTrak with
Runaway
Protection
Compatible

Park
(Lowers to
down
position)

✔
✔

✔
✔
✔

5

Component Identification

Component Identification

Model M04LT0 shown
D
E
F

H
C

J
M18xxx models have
two mufflers (C).

A
K
B

ti12645a

G
FIG. 1: NXT Air Motor components
Key:
A
B
C
D
E
F
G
H
J
K

6

Air valve
Air inlet, 1/4 in. npt(f) for M02xxx and M04xxx models,
1/2 in. npt(f) for M07xxx, M12xxx, and M18xxx models
Muffler (M18xxx models have a second muffler, see inset.
Model M12Fxx has smaller mufflers; not shown.)
Pilot valve
Manifold
Solenoid release button (for DataTrak models with
runaway protection)
Ground screw
Solenoid bracket (for DataTrak models with runaway
protection)
Solenoid (for DataTrak models with runaway protection)
Reed switch (DataTrak models)

312796R

Component Identification

Grounding

Accessories
Bleed-type master air valve

See FIG. 2. Verify that the ground screw (GS) is
attached and tightened securely to the air motor. Connect the other end of the ground wire (U) to a true earth
ground.

Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing or
moving parts.

•

Required in your system to relieve air trapped
between it and the air motor when the valve is
closed.

•

Be sure the valve is easily accessible from the
pump and located downstream from the air regulator.

Air regulator
GS
FIG. 2: Ground wire

U

ti12914a

Adjusts air pressure to the motor and fluid outlet pressure of pump. Locate it close to the pump. Install a
gauge to read air pressure.

Air filter
Removes harmful dirt and moisture from compressed air
supply.

312796R

7

Troubleshooting

Troubleshooting
NOTICE
Check all possible problems and causes before disassembling the pump.
Relieve the pressure before checking or servicing
the equipment.

Problem
Air motor will not run.

Cause

Solution

DataTrak solenoid engaged (DataTrak
models with runaway protection).

Push solenoid release button (118).
Remove solenoid and manually
move pin.

Damaged air valve (17).

Replace or service air valve (17).
See page 9.

Damaged pilot valve (19).

Replace pilot valves (19). See page
13.

Air continuously exhausting
around air motor piston rod.

Damaged u-cups (3, 43).

Replace piston rod u-cups (3, 43).
See page 13.

Air continuously exhausting from
muffler.

Damaged air valve plate (105) or cup
(112).

Replace or service air valve (17).
See page 9.

Air motor “bounces” at top of
stroke.

Damaged bottom pilot valve.

Replace bottom pilot valve (19). See
page 13.

Air motor “bounces” at bottom of
stroke.

Damaged top pilot valve.

Replace top pilot valve (19). See
page 13.

Icing inside motor.

Air motor operating at high pressure
or high cycle rate.

Reduce pressure, cycle rate, or duty
cycle of motor.
Reduce dew point of compressed air
in moisture coalescing filter.

8

312796R

Repair

Repair
Preventive Maintenance
Schedule
The operating conditions of your system determine how
often maintenance is required. Establish a preventive
maintenance schedule by recording when and what kind
of maintenance is needed, and then determine a regular
schedule for checking your system.

Pressure Relief Procedure

Repair Air Valve

Replace Complete Air Valve
1. Stop the pump at the middle of its stroke. Relieve
the pressure. See procedure at left.
2. Disconnect the air line to the motor.

•

•

Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from skin
injection or moving parts.

3. For motors with DataTrak: Remove screw (32) to
disconnect the reed switch (31) from the air valve
(17).
air
line

Do not lift or move motor while pressurized.

1. Engage the trigger lock.
31
2. Close the bleed-type master valve.

32

3. Disengage the trigger lock.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5. Engage the trigger lock.

ti12727a

FIG. 3: Reed switch assembly & air line removal

6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
drain valve(s) open until you are ready to spray
again.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen tip
guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction.

312796R

9

Repair

4. For motors with DataTrak: If equipped with a runaway protection solenoid, remove two screws (18)
and the solenoid bracket (26). Pull the solenoid (25)
out of the air valve.

Replace Seals or Rebuild Air Valve
Air Valve Seal Kits are available. See page 21 to order
the correct kit for your pump. Parts are marked †.
Air Valve Repair Kits are available. See page 21 to
order the correct kit for your pump. Parts are marked ◆.
Air Valve End Cap Kits are available. See page 21 to
order the correct kit for your pump. Parts are marked ✠ .
Disassemble the Air Valve

26

1. Perform steps 1-5 under Replace Complete Air
Valve, page 9.
2. See FIG. 5. Use a 2 mm or 5/64 hex key to remove
two screws (109†◆). Remove the valve plate
(105◆).

Use a
10 mm hex

25

ti12728a

FIG. 4: Solenoid removal

3. M02xxx and M04xxx Motors: Remove the cup
(112◆) and spring (111◆).
M07xxx, M12xxx, and M18xxx Motors: Remove
the two-piece cup assembly (◆112a, b, and c), and
spring (111◆).

5. Remove screws (18). Remove the air valve (17) and
gasket (16*◆).
6. To repair the air valve, go to Disassemble the Air
Valve, step 1 at right. To install a replacement air
valve, continue with step 7.

111◆
112◆

7. Align the new air valve gasket (16*◆) on the manifold, then attach the air valve (17).
8. For motors with DataTrak: If equipped with a runaway protection solenoid, remember to reattach the
solenoid bracket and the solenoid.
9. For motors with DataTrak: Use screw to attach the
reed switch assembly to the new air valve. Be sure
the sensor cables are connected properly (see
pump or package manual).
10. Reconnect the air line to the motor.

◆112a
◆112b
◆112c

ti12751a

105◆
109†◆
FIG. 5: Air plate removal
4. Remove the snap ring (110◆✠ ) from each end. Use
the piston to push the end caps (107✠ , 117✠ ) out of
the ends. Remove end cap o-rings (106†✠ ◆,
119†✠ ◆).
5. Remove the piston (102◆). Remove the u-cup seals
(108†◆) from each end and the detent assembly
(103◆) and detent cam (104◆) from the center.

10

312796R

Repair

110◆✠
1

Apply lubricant.

1 106†✠ ◆

110◆✠
107✠

106†✠ ◆ 1

25

117✠

26

DataTrak
Models with
Runaway
Protection

118✠
119†✠ ◆

104◆
1 103◆
111◆

101

31

1 112◆

105◆
32

1 108†◆

102◆
109†◆

◆112a
1 ◆112b
1 ◆112c

108†◆ 1
107✠
106†✠ ◆ 1

Two-Piece Cup for M07xxx,
M12xxx, and M18xxx Motors

110◆✠

ti11840a

FIG. 6: Air valve assembly

312796R

11

Repair

Reassemble the Air Valve

7. Install the spring (111◆).

1. Lubricate detent cam (104◆) and install into housing.

8. M02xxx and M04xxx Motors: Lubricate and install
the air valve cup (112◆). Align the small round magnet with the air inlet.

2. Lubricate the u-cups (108†◆) and install on the piston (102◆) with lips facing toward the center of the
piston.
108†◆
Lips face down

112◆

Magnet

ti12752a

FIG. 8: Cup installation
102◆
M07xxx, M12xxx, and M18xxx Motors: Lubricate
and install the cup o-ring (◆112b) on the cup body
(◆112a), then assemble the cup body to the cup
base (◆112c). Lubricate and install the cup assembly. Align the small round magnet with the air inlet.
108†◆
Lips face up
ti12754a

FIG. 7: Air valve u-cup installation
◆112a

3. Lubricate both ends of the piston (102◆) and install
it in the housing.
4. Lubricate and install the detent assembly (103◆)
into the piston.
5. Standard models (No DataTrak or DataTrak with
cycle count only): Lubricate new o-rings (106†✠ ◆)
and install on the end caps (107✠ ). Install the end
caps into the housing.
DataTrak models with runaway protection solenoid: Lubricate and install new o-ring (106†✠ ◆) on
bottom end cap (107✠ ). Lubricate and install new
o-ring (119†✠ ◆) and runaway reset button (118) on
top end cap (117✠ ). Install the end caps (107✠ ,
117✠ ) into the housing.

◆112b
◆112c

ti12752b

FIG. 9: Two-piece cup installation
9. Install the valve plate (105◆). Tighten the screws
(109†◆) to hold it in place.

6. Install a snap ring (110◆✠ ) on each end to hold end
caps in place.

12

312796R

Repair

Replace Pilot Valves
1. Stop the pump at the middle of its stroke. Relieve
the pressure. See page 9.
CN

2. Disconnect the air line to the motor.
3. Remove the tie rod shield (TS). Slide the drip shield
(DS) down on the tie rods.

TN
ti12815a

FIG. 10: Coupling nut removal
4. Remove the tie rod nuts (TN).
5. Use a socket to remove the mounting screws (MS).

DS

ti12916a

TS

4. Use a 10 mm socket wrench to remove the old pilot
valves (19) from the top and bottom covers.
5. Lubricate and install the new pilot valves (19).
Torque to 95-105 in-lb (11-12 N•m).

Repair Air Motor

MS
ti12818a

FIG. 11: Air motor removal

NOTE: Air Motor Seal Kits are available. See page 21
for the correct kit for your motor. Parts included in the kit
are marked with an asterisk (*). For best results, use all
the parts in the kit.

6. Lift up on the air motor to remove it. The tie rods and
drip shield will remain attached.
Cart Mount: Remove the two screws on the arms
and tip back or remove the air control panel for easier removal of the air motor.

Disconnect the Air Motor
1. Flush the pump, if possible. (See package manual)
Relieve the pressure. (See page 9.)
2. Disconnect the air and fluid hoses, the ground wire,
and the tie rod shield.
3. Hold the flats of the air motor piston rod with a
wrench. Use another wrench to loosen the coupling
nut (CN).

312796R

13

Repair

Disassemble the Air Motor

7. Remove the top cover. Remove the o-ring (9*).

1. For motors with DataTrak: Remove screw to disconnect the reed switch from the air valve. See FIG.
3, page 9.

8. Remove the shield (12) from around the cylinder.
Remove the cylinder (11).

2. Use a 10 mm socket wrench to remove four screws
(18). Remove the air valve (17) and gasket (16*◆).

9. Depending on your displacement pump model, you
may need to remove an adapter from the bottom of
the piston assembly.

3. Remove the muffler(s).
4. Remove four screws (18) and remove the manifold
(15*) and two gaskets (14*).
5. Use a 10 mm socket wrench to remove the pilot
valves (19) from the top and bottom cover.

NOTICE
Do not attempt to take apart the piston assembly (5).
11. Remove o-ring (8*) from around the piston.

6. Remove the tie bolts.
Model

10. Slide the piston assembly (5) straight up off the bottom cover.

12. Remove u-cup seals (3*, 43*), and o-ring (9*) from
the bottom cover.

Tie Bolt
Hex Size

Reassemble the Air Motor
M02xxx

NOTE: For easier reassembly, start with the top cover
(13) turned over on the workbench and assemble the air
motor upside-down.

13 mm

ti12747a

M04xxx

1. Lubricate and install the o-ring (9*) on the top cover
(13).
2. M07xxx, M12xxx, and M18xxx only: Install the
upper bumper (29) on the top cover (13).

13 mm

ti12748a

3. Lubricate the inside of the cylinder (11). Lower the
cylinder (11) onto the top cover (13).
4. Lubricate and install the o-ring (8*) around the piston (5).

M07xxx
and
M12xxx

5. Slide the piston assembly (5) down into the cylinder
(11). Be sure the o-ring (9*) stays in place.

17 mm

ti12749a

M18xxx
and
M34xxx

6. Install the shield (12) around the cylinder (11) and in
the groove on the top cover (13).

17 mm

ti12750a

14

312796R

Repair

7. See FIG. 12. Lubricate and install new u-cup seal
with flange (43*) in the bottom of the bearing in the
bottom cover (1). The u-cup must face up and the
flange must face down. Lubricate and install new
u-cup seal (3*) in the top of the bearing. Lips must
face up.

12. Install two gaskets (14*) on the manifold (15). Install
the manifold (15). Torque bolts to 95-105 in-lb
(10.7-11.9 N•m).
The manifold is reversible for ease of placement of
muffler or remote exhaust.

Lips face up

3*

11. Install the tie bolts (10) hand tight.

13. Align the air valve gasket (16*◆) on the manifold,
then attach the air valve.

43*

U-cup faces up.
Flange faces down.

ti12755a

14. Tighten the tie bolts (10) halfway. Work in a crisscross pattern. Check that the shield remains in the
grooves on both covers. Continue tightening the
bolts in pattern to the torque specified in the following table.

FIG. 12: Air motor u-cup installation
8. Lubricate and install the o-ring (9*) on the bottom
cover (1).
9. M07xxx, M12xxx, and M18xxx only: Install the piston bumper (28) on the bottom cover (1).
10. See FIG. 13. Carefully place the bottom cover (1) on
the cylinder (11), sliding the rod through the bearing.
The manifold surfaces of the top and bottom covers
must align. Be sure the shield (12) is in the groove
on both the top and bottom covers.

Air Motor

Torque

M02xxx–M04xxx

11-13 ft-lb (15-18 N•m)

M07xxx–M34xxx

25-30 ft-lb (34-40 N•m)

15. Lubricate and install pilot valves (19) in top and bottom cover. Torque to 95-105 in-lb (11-12 N•m).
16. Reinstall muffler(s).

1

groove

28

12

groove

13
29

ti14544a

FIG. 13: Align shield in grooves on covers

312796R

15

Parts

Parts
42

40
19 2
3* 2 3

2 39

8* 2

13

5

2

34 15 18

25

26 17

9*

29
30

31
16*◆

20
12

9* 2

14*

28
1
11
22
19 2
10 1

43* 2 3

ti11900a

1 Torque varies by motor size.

M02xxx-M04xxx: 11-13 ft-lb (15-18 N•m)
M07xxx-M34xxx: 25-30 ft-lb (34-40 N•m)

16

2

Apply lubricant.

3

U-cup faces up. Flange (bottom seal only)
faces down. See FIG. 12, page 15.

312796R

Air Motor Parts — All Models

Air Motor Parts — All Models
Ref.

Description

Qty

M02xxx

M04xxx

M07xxx

M12xxx

M18xxx

M34xxx

1

COVER, lower, assembly (includes
3, 9, 19, 22, 28, and 43)

1

24A541

24A545

24C398

24A549

24A553

24A553

3*

U-CUP

2

5

PISTON, motor, assembly

1

8*

O-RING, piston

1

Not sold separately. See Air Motor Seal Kit (page 21) or
Piston Assembly (5, this table)

9*

O-RING, cover

2

Not sold separately. See Air Motor Seal Kit (page 21) or
Lower Cover Assembly (1, this table) or
Upper Cover Assembly (13, this table)

10

BOLT, tie, hex head

Not sold separately. See Air Motor Seal Kit (page 21) or
Lower Cover Assembly (1, this table)
24A542

24A546

24C399

24A550

24A554

16G515

M02xxx

2

15M314

-----

-----

-----

-----

-----

M04xxx

3

-----

15M314

-----

-----

-----

-----

M07xxx

4

-----

----

15M316

-----

-----

-----

M12xxx

4

-----

-----

-----

15M316

-----

-----

M18xxx

6

-----

-----

-----

-----

15M316

-----

M34xxx

6

-----

----

-----

----

-----

15M315

11

CYLINDER, motor

1

15M289

15M211

15M781

15M672

15M390

16A516

12

SHIELD, cylinder

1

15M302

15M212

15M782

15M676

15M539

16V472

13

COVER, upper, assembly, includes
9, 19, 39, 40, and 41

1

15M291

15X353

15X130

15X354

15X320

15X320

14*

GASKET, manifold

2

15

MANIFOLD, assembly, includes 14,
16, and 18 (qty. 4)

1

16*◆

GASKET, air valve

1

17

VALVE, air, see page 21

Not sold separately. See Air Motor Seal Kit (page 21) or
Manifold Assembly (15, this table)
24A579

24A579

24A580

24A580

24A580

16G521

Not sold separately. See Air Motor Seal Kit (page 21) or
Manifold Assembly (15, this table)

Standard (for models with no DataTrak or DataTrak with cycle
count only)

1

24A351

24A351

24A352

24A352

24A352

24A352

Compatible with DataTrak with Runaway Protection

1

-----

24A353

24A354

24A354

24A354

-----

Park - lowers to down position (cycle
count only)

1

-----

-----

-----

262608

-----

-----

SCREW, M6 x 25

varies

19

VALVE, pilot

2

24A366

20

MUFFLER
M02xxx

1

15M213

-----

-----

M04xxx

1

-----

15M213

-----

M07xxx

1

-----

-----

117237

-----

-----

-----

M12xxx

1

-----

-----

-----

117237

-----

-----

M12Fxx

2

-----

-----

-----

15M940

-----

-----

M18xxx

2

-----

-----

-----

-----

117237

-----

M34xxx

1

-----

-----

-----

-----

-----

102656

SCREW, ground

1

116343

116343

116343

116343

116343

116343

18

22

312796R

Not sold separately. See Manifold Assembly (15, this table) or
Solenoid Assembly (25, this table)
24A366

24A366

24A366

24A366

24A366

-----

-----

-----

-----

-----

-----

17

Air Motor Parts — All Models

Ref.

Description

Qty

25

SOLENOID/REED SWITCH,
assembly, for DataTrak models with
runaway protection, includes 18 (qty.
2 or 4 depending on model), 26, 31,
32, and 33.

1

26

BRACKET, solenoid
(for DataTrak models with runaway
protection)

1

28

BUMPER KIT, includes lower bumper, upper bumper, and screws
(M18xxx only)

1

M02xxx

M04xxx

M07xxx

M12xxx

M18xxx

See Reed
Switch
(31, this
table)

24B565

24B566

24B566

24B566

Not sold separately. See Solenoid/Reed Switch Assembly
(25, this table)
24A914

24A914

24A915

29

BUMPER, upper (M18xxx only)

1

30

SCREW, M5, flat head (M18xxx
only)

3

31

SWITCH, reed, includes 32
(DataTrak models)

1

24B564

32

SCREW, reed switch, 8-32 x 1.50,
(DataTrak models)

1

Not sold separately. See Solenoid/Reed Switch Assembly
(25 this table) or Reed Switch (31, this table)

33

CLAMP, hose, not shown
(DataTrak models)

1

Not sold separately.
Order Kit 24A544 for
package of 10.

34

ADAPTER, muffler
M12xxx

1

M18xxx

2

M34xxx

24A915

Not sold separately.
See Bumper Kit (28,
this table)
See Solenoid/Reed Switch Assembly
(25, this table)

Not sold separately.
Order Kit 24A548 for package of
10.
15T560
15T560

35▲

LABEL, warning (not shown)

39

O-RING, upper cover plug

1

40

PLUG, upper cover (MxxLN0 or
MxxLT0 models)

1

24E990

24E990

24E990

24E990

24E990

42

HOOK, lift. Not included. Order kit
separately if needed, includes
o-ring 39).

0

24E991

24E991

24E991

24E991

24E991

43

SEAL, u-cup with flange

1

*

15W719

15W719

15F674

Not sold separately. See Upper Cover Assembly (13, this table), Plug (40), or Bushing (41)

15W719

15W719

15W719

110782

Not sold separately. See Air Motor Seal Kit (page 21) or
Lower Cover Assembly (1, this table)

Included in Air Motor Seal Kit. See page 21.

▲ Replacement Warning labels, signs, tags, and cards are available at no cost.

18

312796R

Air Valve Parts

Air Valve Parts
110◆✠
106†✠ ◆
110◆✠
107✠

106†✠ ◆

25
117✠

DataTrak Models
with Runaway
Protection

118✠
26

119†✠ ◆

101
104◆
103◆
111◆

31

112◆
105◆
32

108†◆

102◆
109†◆

◆112a
1 ◆112b
1 ◆112c

108†◆
107✠
106†✠ ◆

Two-Piece Cup for M07xxx,
M12xxx, and M18xxx Motors

312796R

110◆✠
ti11840a

19

Air Valve Parts

Air valve parts are not sold individually. The table below shows possible kit options for each part. See page 21 to
order the correct kit(s), or full replacement air valves, for your motor.
Air Valve Air Valve
Qty. Repair Kit Seal Kit

Ref.

Description

101
102◆
103◆
104◆
105◆
106†✠ ◆
107✠

HOUSING
AIR VALVE PISTON
DETENT PISTON ASSEMBLY
DETENT CAM
PLATE, air valve
O-RING
CAP
Standard
Compatible with DataTrak
with runaway protection
U-CUP
SCREW

1
1
1
1
1
2

✔
✔
✔
✔
✔

✔

2
2

✔
✔

✔
✔

SNAP RING
DETENT SPRING
CUP (for M02xxx and M04xxx
models)
112a◆ TWO-PIECE CUP ASSEM112b◆ BLY, with o-ring (for M07xxx,
112c◆
M12xxx, and M18xxx models)
117✠
CAP (for DataTrak models with
runaway protection)
118✠
BUTTON, solenoid release
(for DataTrak models with
runaway protection)
119†✠ ◆ O-RING (for DataTrak models
with runaway protection)
18
SCREW, M6 x 25

2
1
1

✔
✔
✔

1

✔

16*†◆

1

108†◆
109†◆
110◆✠
111◆
112◆

AIR VALVE GASKET

Air Valve
End Cap Kit

Other

✔
✔

2
1

Screws Kit 24A359
(pack of 10)
✔

1

✔

1

✔

1

✔

✔

4

✔

✔

✔
See Manifold Assembly
(15, Air Motor Parts table)
or
Solenoid Assembly (25,
Air Motor Parts table)
See Air Motor Seal Kit
(page 21) or
Manifold Assembly (15,
Air Motor Parts table

† Included in Air Valve Seal Kit. See page 21.
◆ Included in Air Valve Repair Kit. See page 21.
✠ Included in Air Valve End Cap Kit. See page 21.

20

312796R

Kits and Accessories

Kits and Accessories
Kit Description
Complete Air Valve Replacement Kit – Standard
(No DataTrak or DataTrak with cycle count only)

M02xxx M04xxx M07xxx M12xxx M18xxx M34xxx
24A351

24A351 24A352

24A352

24A352

24A352

-----

24A353 24A354

24A354

24A354

-----

* Air Motor Seal Kit

24A539

24A543 24E986

24A547

24A551

24A551

◆ Air Valve Repair Kit

24A537

24A537 24A538

24A538

24A538

24A538

† Air Valve Seal Kit

24A535

24A535 24A536

24A536

24A536

24A536

✠ Air Valve End Cap Kit – Standard
(No DataTrak or DataTrak with cycle count only,
Air Valves 24A351 and 24A352)

24A360

24A360 24A361

24A361

24A361

24A361

24A362

24A362 24A363

24A363

24A363

-----

Complete Air Valve Replacement Kit –
Compatible with DataTrak with Runaway
Protection

✠ Air Valve End Cap Kit – Compatible with DataTrak with Runaway Protection (Air Valves 24A353
and 24A354)
✠ Air Valve End Cap Kit - Park lowers to down
position (cycle count only)
Screws Kit — Includes ten screws (109)

262610
24A359

24A359

24A359 24A359

----24A359

24A359

Linear Sensor Kits
Intrinsically Safe (IS)

24G849 24G848 24G848 24G848 24G848

-----

Not Intrinsically Safe (NON IS)

24G851 24G850 24G850 24G850 24G850

-----

312796R

21

Dimensions

Dimensions
Air
Motor
Model

A
inch (mm)

B
inch (mm)

C
inch (mm)

D
inch (mm)

E
inch (mm)

Weight
lb (kg)

M02xxx

6.8 (173)

9.2 (234)

6.2 (157)

4.2 (107)

5.1 (130)

4.5 (2.0)

M04xxx

7.0 (178)

9.4 (239)

8.4 (213)

6.8 (173)

5.8 (147)

6.7 (3.0)

M07xxx

7.7 (196)

10.1 (257)

9.4 (239)

6.8 (173)

10.8 (274)

13.3 (6.0)

M12xxx

7.7 (196)

10.1 (257)

11.4 (290)

8.6 (218)

11.7 (297)

24 (10.9)

M18xxx

7.7 (196)

10.1 (257)

12.9 (328)

10.1 (257)

14.8 (376)

26.5 (12.0)

M34xxx

10.0 (254)

12.4 (315)

12.9 (328)

10.1 (257)

15.1 (384)

27.5 (12.5)

B

A

Midstroke
ti12729a

C

D

E

ti12730a

22

312796R

Mounting Hole Diagrams

Mounting Hole Diagrams
M02xxx (2.5 in.)
Two M8
mounting holes

M04xxx (3.5 in.)

3 in.
(76 mm)

3 in.
(76 mm)

Two M8
mounting holes

ti12734a

Three 3/8-24
tie rod holes

Two
M8 X 1.25

ti12736a

3-1/4 in.
(83 mm)
bolt circle

4-1/2 in.
(114 mm)
bolt circle

2.2 in. (56 mm)

2.75 in
(70 mm)

Four
M8 X 1.25
3-1/4 in.
(83 mm)
bolt circle

0.55 in
(14 mm)
3.0 in. (76 mm)

ti12733a

5.9 in.
(150 mm)
bolt circle

2.75 in.
(70 mm)

ti12735a

M07xxx (4.5 in.)
2.75 in
(70 mm)
Two M8
mounting holes

4 in.
(102 mm)

4-1/2 in.
(114 mm)
bolt circle

3-1/4 in.
(83 mm)
bolt circle

0.55 in
(14 mm)

3.8 in.
(97 mm)

5.9 in.
(150 mm)
bolt circle
2.75 in.
(70 mm)

312796R

Four
M8 X 1.25

ti12745a

23

Mounting Hole Diagrams

M12xxx (6 in.)
Three 5/8-11
tie rod holes
5.906 in.
(150 mm)
bolt circle

4 in.
(102 mm)
Two M8
mounting holes

2.0 in. (50 mm)
5.250 in.
(133 mm)

ti12738a

Four M8 X 1.25
optional
mounting holes
ti12737a

3.38 in. (86 mm)

M18xxx (7.5 in.) and M34xxx (7.5 in.)
Three 5/8-11
tie rod holes

Two M8
mounting holes

5.906 in.
(150 mm)
bolt circle

4 in.
(102 mm)

ti12740a

3.1 in. (78 mm)
5.250 in.
(133 mm)

Four M8 X 1.25
optional
mounting holes
3.1 in. (78 mm)

24

ti12739a

312796R

Technical Data

Technical Data
Maximum air inlet pressure . . . . . . . . . . . . . . . . . . . . . . .
Stroke length (all except M34xxx) . . . . . . . . . . . . . . . . . .
Stroke length (M34xxx only) . . . . . . . . . . . . . . . . . . . . . .
Air inlet size
M02xxx – M04xxx . . . . . . . . . . . . . . . . . . . . . . . .
M07xxx – M34xxx . . . . . . . . . . . . . . . . . . . . . . . .
Maximum motor speed . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Do not exceed maximum recommended speed of fluid
pump, to prevent premature pump wear.)
Sound data
M02xxx Air Motor
Sound power* . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound pressure** . . . . . . . . . . . . . . . . . . . . . . . .
M04xxx Air Motor
Sound power* . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound pressure** . . . . . . . . . . . . . . . . . . . . . . . .
M07xxx and M12xxx Air Motor
Sound power* . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound pressure** . . . . . . . . . . . . . . . . . . . . . . . .
M18xxx and M34xxx Air Motor
Sound power* . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound pressure** . . . . . . . . . . . . . . . . . . . . . . . .

100 psi (0.7 MPa, 7.0 bar)
2.5 in.
4.75 in.
1/4 in.
1/2 in.
60 cycles per minute

82.8 dBA
72.9 dBA
83.4 dBA
73.5 dBA
80.1 dBA
70.2 dBA
78.8 dBA
68.9 dBA

* Sound power at 70 psi (0.48 MPa, 4.8 bar), 20 cpm. Sound power measured per ISO-9614-2.
** Sound pressure was tested 3.28 feet (1 m) from equipment.

312796R

25

Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs
will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.

TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505

All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.

Original instructions. This manual contains English. MM 312796
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2011, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revised October 2014



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Copyright                       : 2008, Rev. R, October 2014
Web Statement                   : 312796R - NXT Air Motor, Instructions/Parts, English
Keywords                        : "MM 312796, 312796, 312796R, 312796EN-R, 312796EN,  NXT Air Motor, M02xxx, M04xxx, M07xxx, M12xxx, M18xxx,  M34xxx"
Create Date                     : 2008:03:03 09:15:02Z
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Metadata Date                   : 2014:10:28 11:34:50-05:00
Format                          : application/pdf
Title                           : 312796R - NXT Air Motor, Instructions/Parts, English
Creator                         : Michelle Oliveira
Description                     : NXT Air Motor. For use with high performance finishing and coating pumps in hazardous or non-hazardous locations. MM 312796
Subject                         : MM 312796, 312796, 312796R, 312796EN-R, 312796EN,  NXT Air Motor, M02xxx, M04xxx, M07xxx, M12xxx, M18xxx,  M34xxx
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Author                          : Michelle Oliveira
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