49999 015 Form 2062 2 10/5/92 ARO 7790A 7792A Hoist Manual
7790-A ARO-7790A-7792A-Hoist-Manual
User Manual: ARO-7790A-7792A-Hoist-Manual Ingersoll Rand
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Page Count: 12
OPERATOR’S MANUAL SECTION M 50
MANUAL 21
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE Released: 10-l 5-83
Tool & Hoist Products 7790-A and 7792-A SERIES HOISTS Revised: 1 o-5-92
Form: 2062-2
Models: 7790-A9, All, A13, A15, A21, A22
7792-A9, All, A13, Al 5, A21, A22, A23, A24
IMPORTANT: READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS TOOL.
OPERATING PRECAUTIONS AIR SUPPLY REQUIREMENTS
To aid the operator’s understanding of proper and safe use of hoists,
the publication “OVERHEAD HOISTS”, ANSI B30.16-1981, can be pur-
chased from:
l
l
l
l
l
l
American Standards Institute, Inc.
1430 Broadway
New York, New York 10018
Do not use the hoist described in this manual to lift or transport
humans.
Never try to lift a load heavier than the rated capacity of the hoist.
Operate hoist with caution. Operator should have a good attitude
toward safety.
Always follow “proper operating” instructions given in this
manual.
Allow only people who have received training in “proper hoist
operation” to operate hoists.
Follow all operating and routine inspection procedures pre-
scribed in this manual.
Operator of hoist shall operate hoist in a position that will not be
hazardous to his health.
Do not attempt to operate hoist if it is not operating properly.
Before operating hoist, all routine inspection and lubrication pro-
cedures should be completed.
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ROUTINE LUBRICATION REQUIREMENTS
Lack of or an excessive amount of lubrication will affect the perfor-
mance and life of this tool Use only recommended lubricants at
below time intervals:
EVERY 8 HOURS OF TOOL OPERATION -fill lubricator reservoir with
spindle oil (29665). If an in line or air line lubricator is not used,
fill oil reservoir of built-in oiler of hoist head.
EVERY 80 HOURS OF HOIST OPERATION - Grease fittings in lower
BLOCK HOOK ASSEMBLY and TROLLEY WHEELS with NLGI #l grease
(33153).
For maximum operating efficiency, the following air supply specifica-
tions should be maintained to this hoist.:
l AIR PRESSURE - 90 PSIG (6 bar)
l AIR FILTRATION - 50 micron
l LUBRICATED AIR SUPPLY
l HOSE SIZE - l/2” (13 mm) I.D.
An AR0 model 128241-800 airline FILTER/REGULATOR/LUBRICATOR
(F-R-L) is recommended to maintain the above air supply specifica-
tions.
After disassembly is complete all parts, except sealed or shielded
bearings, should be washed with solvent. To relubricate parts, or for
routine lubrication, use the following recommended lubricants:
Where Used AR0 Part# Description
Air Motor 29665 1 qt. Spindle Oil
Gears and Bearings 33153 5 lb. “EP” - NLGI #l Grease
“0” Rings & Lip Seals 36460 4 oz. Stringy Lubricant
Gearing Oil Chamber 40164 1 qt. “EP” Gear Oil
EVERY 160 HOURS OF HOIST OPERATION - Fill oil reservoir in GEAR
CHAMBER with “EP” gear oil (40164). Coat load chain of hoist with
“EP” gear oil (40164).
For parts and service information, contact your local AR0 distributor, or the Customer Service Dept. of the Ingersoll-Rand Distribution Center,
White House, TN at PH: (615) 672-0321, FAX: (615) 672-0601
AR0 Tool & Hoist Products
Ingersoll-Rand Company INGERSOLL-RAND®
1725 U.S. No. 1 North l PO. Box 8000 l Southern Pines, NC 28388-8000
1992 THE AR0 CORPORATION l Printed In USA PROFESSIONALTOOLS
INSTALLATION INSTRUCTIONS
SUSPENDING HOIST ADJUSTING BRAKE
Always select an overhead support capable of supporting combined
weight of hoist, trolley, and hoist’s load capacity.
HOOK SUSPENDED MODELS
l Upper hook should be firmly seated in center of hook saddle and
that safety latch is closed.
l 43059 secondary support cable is recommended,
TROLLEY SUSPENDED MODELS
l Be sure TROLLEY WHEELS are compatible with beam being used.
l Width between outside of TROLLEY WHEELS should be the width
of beam flange + l/2”.
l If 43111 - 90’ ADAPTER is used, mount to hoist before attempting
to install trolley.
l Width is varied by using SPACERS between the hoist body and the
trolley SIDE PLATES.
WIDTH OF BEAM
FLANGE PLUS l/2”
EQUAL
EQUAL
NO
NO
OF SPACERS .
Insert an equal number of SPACERS on each inside of the trolley
SIDE PLATES until beam flange + l/2” measurement is reached.
SIDE PLATES must be vertical.
Insert SHAFTS (43009) through hoist, or adapter if used, and
trolley SIDE PLATES.
Position trolley and hoist assembly on beam.
Put an equal number of SPACERS on each end of SHAFTS
(43009) with lock washer being last.
Tighten nuts on SHAFTS (43009). SHAFTS should extend all the
way through the NUTS.
Move trolley over entire length of beam. If it appears the trolley
SIDE PLATES can be moved closer together and freedom of move-
ment will be maintained, remove an equal number of SPACERS
from inside the SIDE PLATES and assemble these SPACERS to the
outside of the SIDE PLATES.
Tighten NUTS to 25-30 ft. Ibs.
Connect sufficient length of air hose to reach the maximum travel
distance of trolley.
SETTING MAXIMUM UP AND DOWN SPEEDS
Properly attach rated load of hoist to load chain hook.
Slowly raise load to 6” height above floor by slowly pulling pull
chain handle or depressing pendent control.
Release pull chain handle or pendent control.
If load starts to lower, tighten brake adjustment by turning
counter-clockwise until load stops lowering.
Do not over tighten brake. If brake it too tight, the lifting and
lowering of load will be eratic, not smooth.
Never attempt to adjust speed regulator valves on spark resistant
hoists. They are preset by ARO.
Attach rated load of hoist to load chain hook.
Turn speed regulator valves clockwise until they stop. This is
lowest setting.
Lift load by pulling pull chain or depressing pendent control com-
pletely. As load is being lifted, turn up speed regulator valve
counter-clockwise to set the hoist at the desired maximum “lift”
speed.
Lower load by pulling pull chain or depressing pendent control
completely. As load is lowered, turn “DN” speed regulator valve
counter-clockwise to set the hoist at the desired maximum
“lowering” speed.
The pull chain or pendent control is used as the variable control
of lift and lowering speeds up to the maximum speed set by the
speed regulator valves.
CHAIN STOP
l Do not operate hoist unless chain stop is properly attached to
hoist load chain.
l Do not use chain stop to limit the distance the load is to be lifted.
The function of the chain stop is to keep the lower hook com-
ponents from striking the control arm should an over-run condi-
tion ever occur.
2
PROPERLY OPERATING THE HOIST M 50
21
Installation instructions should be completed before attempting to
operate the hoist.
BEFORE SECURING LOAD TO LIFT CHAIN
l Perform routine inspection and lubrication procedures.
SECURING LOAD TO LIFT CHAIN
DO NOT WRAP LOAD CHAIN AROUND LOAD. Approved slings or
other approved devices should be used to provide adequate
single point securing of load to hoist load chain hook. Be sure
safety latch on hook is closed.
Be sure load chain is not twisted or kinked.
Hoist should be centered over the load. Always secure load chain
hook to center of load. Never lift a load from the side or end.
Allow only a sufficient amount of slack in load chain to permit at-
taching hook to load.
LIFTING AND LOWERING LOAD
l Pull (pull chain models) or depress (pendent control models)
controls slowly to eliminate abrupt, jerky operation.
l Take up slack in chain slowly.
l Speed of load lifting can be controlled by the pull chain or pen-
dent control. Pulling the chain further or depressing the pendent
further will result in a faster speed.
ROUTINE INSPECTION
The type of application for a hoist varies so greatly it is impractical to
recommend an exact time-table for inspection of the hoist. Where
hoist is subjected to continuous operation with capacity loads, it is
recommended the unit be inspected twice a week. If the application
is less demanding, the unit should be inspected twice a month. In
general, the frequency of inspection should be determined by the
severity of the application. The user of a hoist should be guided by
any existing federal, state or local regulations governing the use,
testing or inspection of the hoist.
If any damage or malfunction is evident do not operate hoist until all
repairs have been made and hoist tested for proper operation.
The following points and areas are recommended for inspection:
LOAD CHAIN AND ANCHOR POINTS
l Visually check for nicked, gouged, twisted, bent, corroded,
rusted, worn or broken links. Check ends of chain where chain is
anchored to hoist frame and where chain is fastened to lower
hook. Check anchors and pins
l Check chain elongation with a vernier caliper as shown.
IF VISUAL CHECK REVEALS NO DEFECTS, PROCEED AS
FOLLOWS:
LAY USED CHAIN ON FLAT SURFACE AND MEASURE
BETWEEN FIVE (5) LINKS AS SHOWN. MEASUREMENT
SHOULD BE TAKEN ON PORTION OF CHAIN WHICH HAS
MOST PASSED OVER THE POCKET WHEEL.
IF MEASUREMENT TAKEN IS (SEE TABLE) INCHES OR
MORE, CHAIN SHOULD BE REPLACED.
NEW CHAIN
.8583 PI TCH
IT IS NOT INFERRED that a chain is safe prior to the occurence of
elongation of the chain. It is inferred ONLY, that when said elonga-
tion is evident, the chain must be replaced. Other factors, such as
those mentioned as a visual check, may render chain unsafe long
before replacement due to elongation is necessary. NOTE: New chain
should never be used on a worn pocketwheel, replace chain and
pocketwheel as a pair. Chain should also be replaced when replac-
ing brake shoes.
IDENTIFICATION
I
NEW CHAIN
I
REPLACE
MARKINGS MEASUREMENT CHAIN I
1
4.291 4.366
4.340 4.415
HOOKS AND SUSPENSION
l Check upper and lower hooks and related parts for bent, worn,
cracked, broken or otherwise damaged parts.
l On trolley suspended models, check conditions of trolley parts,
trolley adapter and related parts.
l Check for loose bolts, nuts, or rivets.
CORRECT
HOOK OPENING
l-1/4” ON l-TON UPPER & LOWER HOOKS
l-3/8” ON 2 TON UPPER & LOWER HOOKS
BRAKE
l Check brake operation - see Adjusting Brake, page 2.
l Check brake linings and components. NOTE: When replacement
of brake shoes is indicated, they must be replaced as a pair. Also
replace chain at this time.
GEARS, BEARINGS AND POCKETWHEEL
l Check teeth on gears and motor shaft pinion.
l Check pockets of pocketwheel.
l Check bearings for noisy operation indicating wear.
THROTTLE VALVE HEAD AND GEARS
l Check valve body, valves, and “0” rings on valves.
l Check gear teeth and bearings.
AIR MOTOR
Check end faces of rotor for roughness and blade slots for wear
or burrs. A new blade should slide in and out of slots without bin-
ding.
Check blades for wear, warpage or other damage.
Check cylinder bore diameter for rough circular grooves from
scoring. A badly scored cylinder cannot be restored by honing
since it will only enlarge bore diameter, widening seal point bet-
ween rotor and cylinder, hindering free exhaust of air and result in
loss of speed and power.
Check end plates for wear or scoring. Check bearings.
Follow all operating and routine inspection procedures prescrib-
ed in this manual.
DETERMINE TYPE OF IDENTIFICATION MARKINGS
EMBOSSED ON LOAD CHAIN AND FIND DIMENSIONS IN
TABLE
DISASSEMBLY/ASSEMBLY INSTRUCTIONS
Disconnect air supply from hoist before performing maintenance
or service procedures.
Never apply excessive pressure by a holding device which may
cause distortion of a port.
Apply pressure evenly to parts which have a press fit.
Apply even pressure to the bearing race that will be press fitted to
the mating part.
Use correct tools and fixtures when servicing this tool.
Don’t damage “0” rings when servicing tool.
Use only genuine AR0 replacement parts for this tool. When
ordering specify part number, description, tool model number
and serial number.
LOAD CHAIN REMOVAL
- Drive out roll pin (106) and remove clevis from chain.
- If a chain basket is being used with hoist, remove chain stop
from end of chain.
- Z-Ton models with double reeved chain; remove retaining ring
(110) and pin (111) from anchor bracket (112).
- Pull down on one end of control arm (68) to release brake
and pull chain from housing.
LOAD CHAIN INSTALLATION
- A new chain should never be used on a worn pocketwheel.
Replace chain and pocketwheel as a pair.
- Place hoist in vise and clamp on upper hook mount,
- Remove housing cap (95), brake spring (94) and brake shoes
(92).
- Turn brake wheel (93) by hand to rotate pocketwheel while
carefully feeding chain thru chain guide and around pocket-
wheel (64).
- Pull sufficient chain thru housing to allow end link to be at-
tached to anchor lug on housing.
CAUTION: Chain must be positioned around pocketwheel so weld
on the standing links face outward from pocketwheel - see illus-
tration.
- End link of chain must also be positioned properly to permit
attaching to anchor lug on housing without twisting of chain.
WARNING: Do not attempt to feed chain over pocketwheel by air
power as chain will be pulled thru housing at a very fast rate.
- Attach other end of chain to lower hook (or anchor bracket on
2-Ton models).
POCKETWHEEL
4
DISASSEMBLY/ASSEMBLY INSTRUCTIONS M 50
21
HEAD DISASSEMBLY HEAD ASSEMBLY
To remove head section from housing without disassembling head NOTE: When reassembling head to housing a new Gasket (31) must
components, remove head with control rod (59) attached to gear
(25). To accomplish this -
be installed. Tighten Screws (22) to approximately 60 in-lbs. torque.
When tightening these screws it is recommended that an air line be
- Remove two screws (96) and housing cap (95). attached to the air inlet and the hoist operated to insure that no bin-
_ Drive out roll pin (61) and remove brake block (60). ding of the motor occurs. Tighten screws alternately and gradually
- Drive out roll pin (69) from control arm (68). until desired torque is reached without binding of motor.
- Remove six screws (22) and washers (23).
- Remove head section and control rod from housing as one
Lubricate all O-Rings with O-Ring lube (36460) before assembling.
Insure O-Ring (32) is properly positioned in head.
unit.
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To disassemble head components without removing head section
Assemble valve body (15) into head - see “Timing of Head”,
this page.
from hoist: -
Remove two screws (96) and housing cap (95).
Assemble o-rings (27) to regulator valves (28).
- - Assemble regulator valves (28) to head and secure with set
_ Drive out roll pin (69) from control arm (68).
- Drive out roll pin (26) from gear (25) and drive control rod
screws (24). NOTE: groove in regulator valve must be aligned
(59) back thru gear (25) and remove gear.
to accept set screw. See setting hoist speed, page 2.
-
Assemble muffler filler (13), screen (12) and exhaust deflec-
- Remove adapters (19), valves (17) and (29) and valve body
(15).
tor (11) to head and secure with washers (10) and screws (9).
- Clean and assemble screen (8) to head.
- Remove set screws (24) and regulator valves (28). _
CAUTION: do not attempt to adjust or remove regulator valves (28)
Assemble o-rings (5) and (7) to swivel body (6) and assemble
body to head.
from spark-resistant hoist models - these valves are pre-set at fat- _
tory.
Assemble swivel (3) to swivel body and secure with retaining
ring (4).
- Remove adapter (1) and screen (2). -
_ Remove retaining ring (4), swivel (3), swivel body (6) and
Clean and assemble screen (2) and inlet adapter (1) to swivel.
_
screen (8).
Fill oil reservoir in head with spindle oil 29665.
- Remove two screws (9), washers (lo), exhaust deflector (ll),
screen (12) and muffler filler (13).
“TIMING OF HEAD”
\-ENDS OF VALVE BODY FLUSH WITH BUSHING7
IDENTIFICATION MARK “X” ON END OF VALVE BODY
STEP 1
POSITION HOIST SO YOU ARE FACING END WITH AIR INLET.
WITH VALVE PARTS AND GEAR (25) REMOVED, PLACE VALVE
BODY IN VALVE OPENING. INSERT FINGER IN EACH END OF
VALVE OPENING AND ALIGN END OF VALVE BODY WITH ENDS
OF BUSHING.
NOTE: VALVE BODY MUST BE INSTALLED WITH IDENTIFICATION
MARK AS SHOWN.
STEP 2
WITH BRAKE RELEASE BLOCK ASSEMBLED TO CONTROL ROD,
INSERT ROD THROUGH BRAKE END OF HOUSING, THROUGH
CONTROL ARM (68) AND ON THROUGH HOUSING STOPPING
BEFORE ROD PROTRUDES FROM HEAD.
ASSEMBLE GEAR (25) TO HEAD ALIGNING CENTER TOOTH OF
GEAR BETWEEN TWO GROOVE MARKINGS ON THE VALVE BODY
AS SHOWN.
ASSEMBLE CONTROL ROD THROUGH GEAR AND SECURE WITH
ROLL PIN (26). SECURE CONTROL ARM TO ROD WITH ROLL PIN
(69).
STEP 3
ASSEMBLE O-RINGS (16) TO VALVES (17) AND (19) AND ASSEM-
BLE VALVES INTO HEAD AS SHOWN. ASSEMBLE O-RINGS (18) TO
ADAPTERS (29) AND O-RINGS 1201 TO VALVE CAPS 1211 AND
ASSEMBLE TO HEAD.
M 50
21
* ITEMS INCLUDED IN SERVICE KIT PART NUMBER 41619-I.
/ ITEMS INCLUDED IN SERVICE KIT PART NUMBER 41759.
l ITEMS INCLUDED IN 43004 SHAFT ASSEMBLY
DISASSEMBLY/ASSEMBLY INSTRUCTIONS
PENDENT CONTROL DISASSEMBLY
- Remove pendent hoses from fittings (156) and (165).
- Remove adapter (166) from head releasing strain cable.
- Remove screws (168), springs (170) and valves (171).
PENDENT CONTROL ASSEMBLY
- Lubricate o-rings (172) and assemble to valves (171).
- Assemble valves (171) and springs (170) to handle.
- Lubricate o-rings (169) and assemble to screws (168).
- Assemble screws (168) to handle securing valve components.
PENDENT CYLINDER DISASSEMBLY
- Unthread cylinder (157) from adapter (163).
PENDENT CYLINDER ASSEMBLY
- Assemble piston rod (160) to piston (159).
_ Lubricate and assemble o-ring (158) to piston (159).
- Lubricate and assemble o-rings (162) and (164) to adapter
(163).
MOTOR DISASSEMBLY
Remove head section - see “Head Disassembly”.
Remove motor from housing.
Remove retaining ring (36); motor assembly will come apart,
MOTOR ASSEMBLY
Lubricate bearings (37) with NLGI #l “EP” grease (33153)
and assemble bearings to end plate (38) and (43) - shielded
side of bearing facing out.
Assemble end plate (43) to spindle (45) and slide up to
shoulder of spindle.
Assemble key (44) to key slot in spindle (45).
Assemble rotor (41) over spindle aligning key way and key
(44).
Assemble cylinder (39) over rotor (41) and insert blades (42)
into blade slots of rotor - straight side of blade out.
Assemble end plate (38) to spindle and align hole in end plate
with roll pin (40).
Secure assembled parts to spindle with retaining ring (36).
Assemble motor to housing.
Lubricate and assemble o-rings (35) into counterbore of end
plate (38).
Assemble new gasket (31) and head to housing.
BRAKE AND GEARING DISASSEMBLY
- Remove two screws (96) and housing cap (95).
- Carefully slide brake spring (94) part way off brake shoes
(92) and using brake spring spreader (33541), remove brake
spring (94).
CAUTION: remove brake spring (94) with due regard for safety as
spring is assembled with considerable tension,
- Remove brake shoes (92) and steel balls (91).
- Align hole in brake wheel (93) with hole in end plate (89) and
insert a punch or pin thru holes to secure brake wheel.
- Remove cotter pin (74), nut (99) and washer (100).
- Remove brake wheel (93).
_ Remove roll pin (61) and brake block (60).
- Remove four screws (103) and washers (104).
- Place blade type screwdrivers, or similar tool, at opposite
sides behind edge of end plate (89) and pry out on end plate
to remove from housing.
- Remove gearing assembly.
- Remove retaining rings (70) and (82).
- Push on threaded end of shaft (72) and remove out opposite
8
end of gear carrier (75).
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-
Remove bearing (80), spacer (79) and shafts (78), releasing
gears (77) and bearing races (76).
Remove retaining ring (83) and bearing (81).
Remove four shoulder screws (101) and washers (102) and
fixed ring gear (84).
Remove seal (88) for replacement only.
BRAKE AND GEARING ASSEMBLY
Lubricate and assemble six o-rings (86) into counterbores of
fixed ring gear (84).
Assemble seal (88) to end plate (89) - lip of seal facing out.
Assemble wave washer (87) and end plate (89) to fixed ring
gear (84) and secure with four washers (102) and shoulder
screws (101),
Assemble gears (77), bearing races (76) and shafts (78) to
gear carrier (75).
Assemble spacer (79) to gear carrier aligning spacer with
notched ends of shafts (78).
Lubricate bearings (73) and (80) with NLGI #l “EP” grease
(33153) and assemble to gear carrier (75).
Lubricate bearing (71) with NLGI #l “EP” grease (33153) and
assemble to shaft (72).
Assemble shaft (72) to gear carrier (75) and secure with re-
taining ring (70).
IMPORTANT: punch marks on gears (77) indicating aligned teeth
must be held in alignment with punch marks on gear carrier (75)
when shaft (72) to assembled to gear carrier.
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-
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-
-
-
-
-
ON CARRIER MUST BE IN ALIGNMENT
Lubricate bearing (81) with NLGI #l “EP” grease (33153) and
assemble to shaft (72).
Assemble retaining ring (82) and (83) to shaft (72).
Assuming o-ring (53) and ring gear (55) are assembled to
housing (see housing assembly); assemble gearing into ring
gear (55).
Lubricate and assemble o-ring (54) over fixed ring gear (84)
and slide up to end plate.
Assemble fixed ring gear and end plate to gearing and hous-
ing. Use reasonable caution so as not to damage seal (88) in
end plate.
Secure end plate and components to housing with washers
(104) and screws (103).
Assemble brake wheel (93) to shaft (72) and secure with
washer (100), nut (99) and cotter pin (74).
Assemble control rod (59) thru housing, hangers (62) and
control arm (68).
Secure control arm (68) to rod with roll pin (69).
Assemble brake block (60) and roll pin (61) to control arm
(59).
Assemble screw (90), balls (91), brake shoes (92) and brake
spring (94).
Assemble housing cap (95) and secure with two screws (96).
See brake adjustment, page 2.
Fill gearing oil chamber with 6 to 7 ounces (to lower plug hole
level) “EP” gear oil (40164).
DISASSEMBLY/ASSEMBLY INSTRUCTIONS M 50
21
HOUSING DISASSEMBLY
Remove head, motor and gearing sections.
Remove screws (67), washers (66) and plate (65).
Place brass or wood block in pocketwheel cavity to prevent
shaft (50) from turning.
Remove nut (58), washer (57), o-ring (56) and ring gear (55).
Remove retaining ring (46) from “motor end” of housing.
Remove shaft (50) with bearing (47).
Remove pocketwheel (64) and chain guide (63).
Remove seal (52) for replacement only.
HOUSING ASSEMBLY
Assemble bearing (47) and retaining ring (46) to “brake end”
of housing.
Assemble chain guide (63) and pocketwheel (64) to housing.
NOTE: part number stamped on face of pocketwheel must
face “motor end” of housing.
Assemble retaining ring (48) and bearing (47) to shaft (50).
Insert shaft (50) into housing and thru pocketwheel (64) and
bearing (47).
Assemble retaining ring (46) to housing.
Assemble plate (65), washers (66) and screws (67) to hous-
ing.
Assemble new seal (52) into housing with lip of seal facing
out.
Lubricate and assemble o-ring (53) into groove in housing.
Assemble ring gear (55), o-ring (56), washer (57) and nut
(58).
Assemble motor, gearing and head sections to hoist.
UPPER HOOK DISASSEMBLY
_ Remove nuts (153), washers (152) and bracket (150).
- Drive out roll pin (147) - One-Ton Models. Roll pins (155) and
(154) - Two-Ton Models.
- Remove collar (143) and balls (144) - One-Ton Models. Collar
(116), thrust bearing (120) and bearing races (119) - Two-Ton
Models.
UPPER HOOK ASSEMBLY
_ Position hook on bracket (150).
- Apply a liberal amount of grease to groove of collar (143) and
assemble eleven balls (144) to collar.
- Slide collar and balls over shank of hook and secure with roll
pin (147) - One-Ton Models.
- Apply a liberal amount of grease to thrust bearing (120) and
assemble thrust races (119) and bearing (120) to shank of
hook. Secure with roll pins (154) and (155) - Two-Ton Models.
- Assemble bracket (150), shafts (151), washers (152) and nuts
(153).
CAUTION: Do not over-tighten nuts (153); tighten 25 to 30 ft. Ibs. tor-
que.
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LOWER HOOK DISASSEMBLY
l-TON MODELS
Remove snap ring (139).
Slide snap ring (139) and sleeve (140) up on chain and
remove pin (146).
Separate connector (142) from bucket (145) and remove pin
(141).
Drive out roll pin (147) and remove hook from bucket (145).
2-TON MODELS
Remove bolts (134), washers (133) and shrouds (130).
Remove bolts (124), (129), washers (125), and spacers (126).
Remove shaft (128), spacers (127) and sheave (114).
Drive out roll pins (118) and (117).
Remove collar (116), thrust bearing (120), bearing races (119)
and hook (123).
LOWER HOOK ASSEMBLY
l-TON MODELS
Slide snap ring (139) and sleeve (140) on end of load chain.
Position end of load chain in connector (142) and secure with
pin (141).
Assemble hook (149) to bucket (145).
Apply a liberal amount of grease to groove of collar (143) and
assemble eleven balls (144) to collar.
Assemble collar (143) over shank of hook and secure with roll
pin (147).
Assemble bucket (145) to connector (142) and secure with pin
(146).
Slide sleeve (140) over bucket (145) and secure with snap
ring (139).
2-TON MODELS
Assemble hook (123) to yoke (121).
Apply a liberal amount of grease to thrust bearing (120) and
assemble bearing races (119) and thrust bearing to collar
(116).
Assemble collar (116) over shank of hook and secure with roll
pins (117) and (118).
Lubricate roller bearing of sheave (114) and assemble bearing
race (115) to sheave.
Assemble spacers (127), sheave (114) and shaft (128) to yoke
(121).
Assemble washers (125) and spacers (126) to bolts (124) and
(129) and secure bolts to shaft (128).
Feed load chain around sheave - with weld of standing links
facing out from sheave and attach end of chain to anchor
bracket (112) with pin (111) and retaining rings (110).
Position shrouds (130) on lower hook assembly and secure
with washers (133) and bolts (134).
9
PART NUMBER FOR ORDERING
t
PART NUMBER FOR ORDERING 4
t
1
4
*5
6
*7
*8
9
10
11
12
*13
14
15
*16
17
*l8
19
*20
22
23
24
25
26
27
28
29
*31
*32
33
34
*35
*36
37
38
39
40
41
*42
43
*44
45
46
47
*48
*49
50
10
HEAD ASSEMBLY (standard models)(includes
items 1 thru 21, 24 thru 30, 33 and 34 with
adapter 46211) ,
HEAD ASSEMBLY (spark-resistant models)(in-
eludes items 1 thru 19, 24 thru 30, 33, 34 and
59 with adapter 46212)
Adapter
for standard models
for spark-resistant models....... ......
Screen
Swivel ..................
SWIVEL KIT (includes items 1 thru 3)
for standard models (includes adapter 46211)
for spark-resistant models (includes adapter
46212) . . .
Retaining Ring.
“0” Ring (2 req’d)
Swivel Body
“0” Ring
Screen.
Cap Screw (2 req’d)
Washer (2 req’d) . .
Exhaust Deflector.
Screen
Muffler Filler
Head (includes roller bearing 33239 and three
pipe plugs Y227-3, not shown)
Valve Body
“0” Ring (2 req’d)
Lift Valve .
“0” Ring (2 req’d)
Adapter (2 req’d) .
“0” Ring (2 req’d)(not required with pendent
control models) . . .
Valve Cap (2 req’d)(not required with pendent
control models)
Cap Screw (6 req’d) . .
Washer (6 req’d)
Set Screw (2 req’d)
for standard models
for spark-resistant models
Gear
Roll Pin
“0” Ring (2 req’d)
Valve (2 req’d)
Descent Valve
Oilite Casting
Gasket
“0” Ring
Washer (2 req’d
Oil Screw (2 req’d)
“0” Ring (2 req’d)
MOTOR ASSEMBLY (includes items 36 thru 45)
Retaining Ring
Bearing (2 req’d)
End Plate
Cylinder (includes item 40)
Roll Pin
Rotor
Blade (8 req’d)
End Plate
Key
Spindle
Retaining Ring (2 req’d)
Bearing (2 req’d)
Retaining Ring
Seal
Shaft
SHAFT ASSEMBLY (includes items 49 and 50)
46126-2
46126-3
46211
46212
31648
46839
46840
46841
Y145-28
Y325-115
33314
Y325-17
46072
Y154-53
Y14-10
42954
42957
42956
46125
43079
Y330-16
43080
Y325-25
40017
Y325-116
34026
Y154-54
Y14-10
41598
41627-1
34022
Y178-56
Y325-111
43107
43081
33190
43008
Y325-9
31389
30747
Y325-12
42977
Y145-22
42086
43076
43130
Y178-73
43068
43067
42958
30934
42959
Y147-200
42962
Y145-25
42149
42960
43004
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
Capacity Label (not shown)
1000 kg (2200 I b.)
2400 lb.
2000 kg (4400 lb)
1500 lb.
3000Ib
Housing (includes item ‘52, pipe plug Y227-2-L,
set screw Y29-44 and warning label 43640,
not shown)
Nameplate (not shown)
Drive Screw (4 req’d)(not shown)
Seal
“0” Ring
“0” Ring .
Ring Gear.
“0” Ring
Washer
Nut
Control Rod
Brake Block
Roll Pin
Hanger (2 req’d) ,
Chain Guide
Pocket Wheel
Plate
Washer (6 req’d)
Cap Screw (6 req’d)
Control Arm
Roll Pin . .
Retaining Ring.
Bearing
Shaft.
Bearing .
Cotter Pin.
Carrier . .
Bearing Race (4 req’d)
Gear (2 req’d)
Shaft (2 req’d)
Spacer
Bearing
Bearing
Retaining Ring.
Retaining Ring
GEARING ASSEMBLY (includes items 70 thru
73 and 75 thru 83)
Fixed Ring Gear
Roll Pin (2 req’d)
“0” Ring (6 req’d)
Wave Washer
Seal
End Plate (includes Item 88, bracket 42980-l
and roll pin Y178-44, not shown)
END PLATE and RING GEAR ASSEMBLY (in-
cludes items 84 thru 89, 101 and 102.
Screw
Ball (2 req’d)
Brake Shoe (2 req’d)
Brake Wheel
Brake Spring
Housing Cap
Cap Screw (2 req’d)
Drive Screw (4 req’d)
Capacity Plate
1500 lb
1 ton
2400 lb
3000 lb
2 ton
Nut
Washer
Shoulder Screw (4 req’d)
46067-3
44198-7
46067-4
44198-g
44198-10
42996
41596
Y60-44
42967
Y325-46
Y325-155
42963
Y325-211
Y117-875
42964
46121
34029
Y178-60
43033
42989
42961
42990
Y117-10
Y154-52
43133
Y178-55
42975
41864
43072-l
40048
Y15-32
42965
42364
42971
42973
42974
42968
Y65-12
Y147-112
Y145-18
42976
42966
Y178-101
Y325-10
40041
43075
43118
43003
37701
Y16-10
42994
43071-l
42982
42979
Y154-54
Y60-43
45278
41589
43116
45279
43050
Y12-106-C
Y117-676
42993
-
102
103
104
105
106
107
108
109
*llC
111
112
113
114
115
116
117
118
119
120
121
* 122
123
124
125
126
127
128
129
130
133
134
135
136
137
138
139
140
14
14:
PART NUMBER FOR ORDERING I
Washer (4 req’d)
Cap Screw (4 req’d)
Washer (4 req’d)
Clevis
Roll Pin .
Link Chain
for 1 ton, standard models, 10 ft (3 m) lift
for 1500 lb, spark-resistant models, 10 ft
(3m) lift
for 2 ton, stand&d models, 10 ft (3 m) lift
for 2400 and 3000 lb, spark-resistant models,
10 ft (3 m) lift
Retaining Ring (2 req’d) .
Anchor Pin
Retaining Ring (2 req’d)
Pin
Anchor Bracket
Chain Stop
Sheave and Bearing
Bearing Race
Collar
Roll Pin
Roll Pin
Bearing Race (2 req’d)
Thrust Bearing
Yoke
Safety Latch (includes bolt, nut and spring)
Hook
Steel Hook for standard 2 ton models (In-
cludes item 122)
Bronze Hook for 2400 and 3000 lb spark-
resistant models (includes item 122)
YOKE AND HOOK ASSEMBLY with steel hook,
for standard 2 ton models (includes items 114
thru 123)
YOKE AND HOOK ASSEMBLY with bronze hook,
for 2400 and 3000 lb spark-resistant models
(includes items 114 thru 123)
LOWER BLOCK ASSEMBLY for standand 2 ton
models (Includes items 114 thru 129 with steel
hook)
LOWER BLOCK ASSEMBLY for spark-resistant
models (includes items 114 thru 129 with
bronze hook)
Bolt. .
Washer (2 req’d)
Spacer (2 req’d)
Spacer (2 req’d)
Shaft
Bolt (includes grease fitting 35323)
Shroud (2 req’d)
for standard 2 ton models
for 2400 lb models (includes capacity plate
43123 and four drive screws Y60-30, not
shown)
for 3000 lb’ models includes capacity plate
45281 and four drive screws Y60-30, not
shown)
Washer (3 req’d)
Cap Screw (3 req’d) .
Nut (3 req’d)
Cap Screw
Chain Stop (2 req’d)
Nut..
Chain Stop Assembly includes items 136 thru
138)
Snap Ring
Sleeve
Pin
Connector
t
Yl-416-C
Y99-41
30997
34987
Yl78-104
42988-11
43095-11
42988-22
43095-22
Y145-8
43020
Y145-2
42970
43034
43051-l
43046
43041
43032
Y178-128
Y178-117
37391
37392
43037
40230
43031
43083
43047
43099
43048
43101
Y 5-85-C
Y14-816
43039
43042
43038
40072
43043
43121
45282
Y14-416
Y99-49
Y 242-l 2-B
Y 99-44
43127
Y107-4-z
43128
42999
42998
43702-l
43028
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
ORDERING M
Collar .
Ball (11 req’d)
Bucket
Pin
Roll Pin
Safety Latch (includes bolt, nut and spring)
Hook
Steel Hook for standard 1 ton models
Bronze Hook for 1500 lb spark-resistant
models
LOWER HOOK ASSEMBLY for 1 ton models (in-
cludes items 143 thru 145 and 147 thru 149 with
steel hook)
LOWER HOOK ASSEMBLY for 1500 lb spark-
resistant models (includes items 143 thru 145
and 147 thru 149 with bronze hook
UPPER HOOK ASSEMBLY for standard 1 ton
models (includes items 143,144 and 147 thru
150 with steel hook
UPPER HOOK ASSEMBLY for 1500 Ib spark-
resistant models (includes items 143,144 and
147 thru 150 with bronze hook
UPPER HOOK ASSEMBLY for standard 2 ton
models (includes items 116, 119, 120, 122, 123,
150, 154 and 155 with steel hook)
UPPER HOOK ASSEMBLY for 2400 and 3000
lb spark-resistant models (includes items 116,
119, 120, 122, 123, 150, 154 and 155 with bronze
hook)
Bracket
for 1 ton and 1500 lb models
for 2 ton, 2400 and 3000 lb models
Mounting Rod (2 req’d)
Washer (4 req’d) .
Nut (4 req’d)
Roll Pin
Roll Pin
CYLINDER ASSEMBLY (2 req’d) (includes items
156 thru 164)
Elbow
Cylinder
“0” Ring . .
Piston
Piston Rod
Spring
“O”Ring
Adapter
“0” Ring
Elbow
Adapter (2 req’d)
Hose Assembly (includes hoses and strain
cable).
Screw (2 req'd)
“0” Ring (2 req’d)
Spring (2 req’d)
Valve (2 req’d)
“O” Ring (2 req’d)
Screw (4 req’d)
Connector (3 req’d)
Handle
Roll Pin (2 req’d)
Lever (up)
Lever (down)
Guard Assembly (includes warning plate 44197
and four rivets 45119) .
HANDLE ASSEMBLY (includes items 168 thru
179) . .
PENDENT CONTROL ASSEMBLY (includes items
156 thru 179) .
“S” Hook (2 req’d) . . .
t
50
21
34321
Y16-10
43019
43702-2
Yl78-122
35023
34337
34651
43000
43110
43002
43097
43049
43096
42997
43030
43001
Y14-750
46049
Yl78-128
Y178-117
43017
Y 54-23
41064-l
Y325-222
41066
42955
33981
Y325-13
41067
Y325-116
Y 54-23
33989
43103-6
37511
Y325-111
32858
34757
Y325-6
Y61-85-C
Y54-2
43122
Y178-58
45616-2
45616-1
44312
43102
43106-6
37659
11
PART NUMBER FOR ORDERING
t
PART NUMBER FOR ORDERING
181
182
183
184
185
186
187
188
189
190
191
192
Handle (2 req’d) ............
Control Handle (includes item 185)
Sash Chain (2 req’d) ... ... ..........
Anchor (2 req’d) ..............
Warning Label ..... ........ ..
PULL CHAIN CONTROL ASSEMBLY (includes
items 180 thru 185) .............
Trolley Wheel (4 req’d)
for “I” Beam mounting
for standard 1 ton models .........
for spark-resistant 1 ton models .......
for standard 2 ton models. .........
for spark-resistant 2 ton models ......
for “H” Beam mounting (flat tread wheel)
for standard 1 ton models ...........
for standard 2 ton models. ..........
Spacer (8 req’d)
for 1 ton models .
for 2 ton models. ....
Side Plate (2 req’d) ............
Lock Washer (8 req’d) ...........
Nut (4 req’d) .................
Nut (4 req’d) ...............
Shaft (2 req’d) ................
33268
44806
37657-5
37723
44596
40004-5
41015
41015-l
40149
40149-l
45376
45377
41022
Y13-12-C
43052
Y14-750
Y12-12
46049
43009
193
194
195
196
Washer (84 req’d)
Nameplate (not shown)
Skid Bracket (4 req’d) (not shown)
Rivet (8 req’d) . .
TROLLEY ASSEMBLY
for spark-resistant models (includes items 186
thru 196)
for 1 ton models
for 2 ton models
for standard models (includes items 186 thru
194)
for 1 ton models (“I” Beam)
for 1 ton models (“H” Beam)
for 2 ton models (“I” Beam)
for 2 ton models (“H” Beam)
SERVICE KIT: includes items 5 (2 req’d), 7, 8,
13, 16 (2 req’d), 18 (2 req’d), 20 (2 req’d), 31,
32, 35 (2 req’d), 36, 42 (8 req’d), 44, 48, 49,
53, 54, 56, 74, 88, 92 (2 req’d), 110 (2 req’d),
122 and 148
SERVICE KIT: includes items 63, 64 and 67
(6 req’d)
MODEL IDENTIFICATION
SPARK RESISTANT MODELS
7790-A21 HOOK ASS’Y 43097 PULL CHAIN LINK l * 1,500
7790-A22 NONE’ PULL CHAIN LINK l * (680 Kg)
7792-A21 HOOK ASS’Y 43096 PULL CHAIN LINK l * 2,400
7792-A22 NONE’ PULL CHAIN LINK ** (1,089 Kg)
7792-A23 HOOK ASS’Y 43096 PULL CHAlN LINK l l 3,000
7792-A24 NONE * PULL CHAIN LINK * * (1,361 Kg)
43014
44081-1
44618-1
Y193-33
7763-BC
7764-BC
7795
7795-FT
7796
7796-FT
41619-1
41759
“FOR TROLLEY MOUNTING - TROLLEY MUST BE ORDERED SEPARATELY
*‘STAINLESS STEEL LINK CHAIN AND BRONZE HOOKS.
12 PN 49999-015
