Ingersoll Rand Personal Lift 7790 A User Manual

Form 10590149  
Edition 2  
September 2005  
HOISTS  
Series 7790-A & 7792-A  
Operator’s Manual  
Save These Instructions  
 
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.  
Adjusting Brake  
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.  
Allow only a sufficient amount of slack in load chain to  
permit attaching hook to load.  
Do not over tighten brake. If brake it too tight, the lifting  
and lowering of load will be eratic, not smooth.  
Lifting and Lowering Load  
1. Pull (pull chain models) or depress (pendent control  
models) controls slowly to eliminate abrupt, jerky  
operation.  
2. Take up slack in chain slowly.  
3. Speed of load lifting can be controlled by the pull chain or  
pendent control. Pulling the chain further or depressing  
the pendent further will result in a faster speed.  
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.  
-
-
2-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.  
Setting Maximum Up and Down Speeds  
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 completely. 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.  
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 pocketwheel (64).  
Pull sufficient chain thru housing to allow end link to be  
attached to anchor lug on housing.  
CAUTION  
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 must be positioned around pocketwheel so weld  
on the standing links face outward from pocketwheel -  
see illustration.  
-
End link of chain must also be positioned properly to  
permit attaching to anchor lug on housing without  
twisting of chain.  
WARNING  
REGULATOR  
UP  
DN  
Do not attempt to feed chain over pocketwheel by air  
power as chain will be pulled thru housing at a very fast  
rate.  
VALVES  
Chain Stop  
Do not operate hoist unless chain stop is properly  
attached to hoist load chain.  
-
Attach other end of chain to lower hook (or anchor  
bracket on 2-Ton models).  
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 components from striking the control arm  
should an over-run condition ever occur.  
CHAIN WELD  
Installation instructions should be completed before  
attempting to operate the hoist.  
POCKET WHEEL  
CHAIN GUIDE  
Before Securing Load to Lift Chain  
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  
Form 10590149-Edition 2  
3
 
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.  
Check for loose bolts, nuts, or rivets.  
CORRECT  
HOOK OPENING  
1-1/4" ON 1-TON UPPER & LOWER HOOKS  
1-3/8" ON 2-TON UPPER & LOWER HOOKS  
Brake  
1. Check brake operation - see Adjusting Brake, page 2.  
2. 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.  
If any damage or malfunction is evident do not operate hoist  
until all repairs have been made and hoist tested for proper  
operation.  
Gears, Bearings and Pocketwheel  
The following points and areas are recommended for  
inspection:  
Check teeth on gears and motor shaft pinion.  
Check pockets of pocketwheel.  
Check bearings for noisy operation indicating wear.  
Load Chain and Anchor Points  
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  
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.  
Throttle Valve Head and Gears  
Check valve body, valves, and “O” rings on valves.  
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 binding.  
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 between 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  
prescribed in this manual.  
IF MEASUREMENT TAKEN IS (SEE TABLE) INCHES  
OR MORE, CHAIN SHOULD BE REPLACED.  
VERNIER CALIPER  
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.  
5/16  
.8583 PITCH  
NEW CHAIN  
Use correct tools and fixtures when servicing this tool.  
Don’t damage “O” rings when servicing tool.  
Use only genuine ARO replacement parts for this tool.  
When ordering specify part number, description, tool  
model number and serial number.  
DETERMINE TYPE OF IDENTIFICATION MARKINGS EMBOSED ON LOAD CHAIN  
AND FIND DIMENSIONS IN TABLE  
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 elongation 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 replacing  
brake shoes.  
IDENTIFICATIONS  
MARKINGS  
NEW CHAIN  
MEASUREMENT  
REPLACE CHAIN  
4.366  
ARO  
or  
4.291  
4.340  
OC  
4.415  
Hooks and Suspension  
Check upper and lower hooks and related parts for bent,  
worn, cracked, broken or otherwise damaged parts.  
On trolley suspended models, check conditions of trolley  
parts, trolley adapter and related parts.  
4
Form 10590149-Edition 2  
 
Maintenance  
Dissassembly  
Head Disassembly  
NOTE: When reassembling head to housing a new Gasket  
(31) must be installed. Tighten Screws (22) to approximately  
60 in-lbs. torque. When tightening these screws it is  
recommended that an air line be attached to the air inlet and  
the hoist operated to insure that no binding of the motor  
occurs. Tighten screws alternately and gradually until desired  
torque is reached without binding of motor. Lubricate all  
O-Rings with O-Ring lube (36460) before assembling. Insure  
O-Ring (32) is properly positioned in head.  
To remove head section from housing without disassembling  
head components, remove head with control rod (59)  
attached to gear (25). To accomplish this -  
-
-
-
-
-
Remove two screws (96) and housing cap (95).  
Drive out roll pin (61) and remove brake block (60).  
Drive out roll pin (69) from control arm (68).  
Remove six screws (22) and washers (23).  
Remove head section and control rod from housing as  
one unit.  
-
Assemble valve body (15) into head - see “Timing of  
Head”, this page.  
-
-
Assemble o-rings (27) to regulator valves (28).  
Assemble regulator valves (28) to head and secure  
with set screws (24). NOTE: groove in regulator valve  
must be aligned to accept set screw. See setting hoist  
speed, page 2.  
Assemble muffler filler (13), screen (12) and exhaust  
deflector (11) to head and secure with washers (10)  
and screws (9).  
To disassemble head components without removing head  
section from hoist:  
-
-
-
Remove two screws (96) and housing cap (95).  
Drive out roll pin (69) from control arm (68).  
Drive out roll pin (26) from gear (25) and drive control  
rod (59) back thru gear (25) and remove gear.  
Remove adapters (19), valves (17) and (29) and valve  
body (15).  
-
-
-
-
-
Clean and assemble screen (8) to head.  
Assemble o-rings (5) and (7) to swivel body (6) and  
assemble body to head.  
Remove set screws (24) and regulator valves (28).  
-
-
-
Assemble swivel (3) to swivel body and secure with  
retaining ring (4).  
Clean and assemble screen (2) and inlet adapter (1) to  
swivel.  
CAUTION  
do not attempt to adjust or remove regulator valves (28)  
from spark-resistant hoist models - these valves are  
pre-set at fatctory.  
Fill oil reservoir in head with spindle oil 29665.  
Pendent Control Disassembly  
-
-
Remove adapter (1) and screen (2).  
Remove retaining ring (4), swivel (3), swivel body (6)  
and screen (8).  
Remove two screws (9), washers (10), exhaust  
deflector (11), screen (12) and muffler filler (13).  
-
-
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  
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.  
-
-
-
-
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.  
NOTE: VALVE BODY MUST BE INSTALLED WITH IDENTIFICATION MARK AS SHOWN.  
ENDS OF VALVE BODY FLUSH WITH BUSHING  
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).  
UP DN  
TIMING GROOVES  
ON VALVE BODY  
IDENTIFICATION MARK "x" ON END OF VALVE BODY  
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.  
Motor Disassembly  
ASSEMBLE GEAR [25] TO HEAD ALIGNING CENTER TOOTH OF GEAR BETWEEN TWO  
GROOVE MARKINGS ON THE VALVE BODY AS SHOWN.  
-
-
-
Remove head section - see “Head Disassembly”.  
Remove motor from housing.  
Remove retaining ring (36); motor assembly will come  
apart,  
ASSEMBLE CONTROL ROD THROUGH GEAR AND SECURE WITH ROLL PIN [26]. SECURE  
CONTROL ARM TO ROD WITH ROLL PIN [69].  
Motor Assembly  
-
Lubricate bearings (37) with NLGI #1 “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.  
-
UP DN  
GEAR [25]  
-
-
Assemble key (44) to key slot in spindle (45).  
Assemble rotor (41) over spindle aligning key way and  
key (44).  
STEP 3 :- ASSEMBLE O-RINGS [16] TO VALVES [17] AND [19] AND ASSEMBLE VALVES  
INTO HEAD AS SHOWN. ASSEMBLE O-RINGS [18] TO ADAPTERS [29] AND O-RINGS  
[20] TO VALVE CAPS [21] AND ASSEMBLE TO HEAD.  
-
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).  
UP DN  
Form 10590149-Edition 2  
5
 
-
-
Assemble motor to housing.  
Lubricate and assemble o-rings (35) into counterbore  
of end plate (38).  
-
-
-
-
-
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 end of gear carrier (75).  
-
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 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 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 seal (88) for replacement only.  
Assembly  
-
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).  
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 #1 “EP”  
grease (33153) and assemble to gear carrier (75).  
Lubricate bearing (71) with NLGI #1 “EP” grease  
(33153) and assemble to shaft (72).  
Assemble shaft (72) to gear carrier (75) and secure  
with retaining ring (70).  
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.  
-
-
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.  
-
-
-
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).  
PUNCH MARKS ON GEARS AND PUNCH MARK  
ON CARRIER MUST BE IN ALIGNMENT  
-
Lubricate bearing (81) with NLGI #1 “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  
housing. 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 retaining ring (46) to housing.  
Assemble plate (65), washers (66) and screws (67) to  
housing.  
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.  
Assemble brake wheel (93) to shaft (72) and secure  
with washer (100), nut (99) and cotter pin (74).  
6
Form 10590149-Edition 2  
 
Upper Hook Disassembly  
Lower Hook Assembly  
1-Ton Models  
-
-
Remove nuts (153), washers (152) and bracket (150).  
Drive out roll pin (147) - One-Ton Models. Roll pins  
(155) and (154) - Two-Ton Models.  
-
Slide snap ring (139) and sleeve (140) on end of load  
chain.  
-
Remove collar (143) and balls (144) - One-Ton  
Models. Collar (116), thrust bearing (120) and bearing  
races (119) - Two-Ton Models.  
-
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).  
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.  
2-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 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 bracket (150), shafts (151), washers (152) and  
nuts (153).  
-
-
-
-
-
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).  
CAUTION  
Do not over-tighten nuts (153); tighten 25 to 30 ft. Ibs.  
torque.  
Lower Hook Disassembly  
1-Ton Models  
-
-
Remove snap ring (139).  
Slide snap ring (139) and sleeve (140) up on chain and  
remove pin (146).  
-
Position shrouds (130) on lower hook assembly and  
secure with washers (133) and bolts (134).  
-
-
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).  
Form 10590149-Edition 2  
7
 
186  
186  
186  
187  
187  
187  
188  
188  
187  
189  
189  
187  
190  
190  
CAUTION: TIGHTEN NUTS 25 TO 30 FT.  
LBS. TORQUE ONLY.  
193  
189  
191  
191  
189  
85  
192  
77  
193  
189  
191  
193  
76  
78  
*
*
76  
*
*
*
54  
91  
74  
90  
*
*
92  
92  
95  
*
94  
88  
84  
55  
80  
96  
93  
*
46  
91  
53 52  
*
47  
58  
X
56  
81  
*
73  
57  
70  
97  
72  
71  
*
82  
75  
98  
99  
87  
79  
86  
83  
*
60  
85  
89  
59  
61  
76  
78  
76  
101  
102  
103  
77  
100  
*
*
*
104  
105  
107  
106  
106  
105  
107  
138  
136  
108  
108  
137  
137  
111  
109  
110  
110  
112  
*
113  
115  
114  
Y
139  
140  
117++  
118  
116  
120  
127  
142  
143  
130  
125  
130  
141  
127  
125  
119  
144  
*
133  
134  
145  
147  
+
*
146  
149  
128  
129  
126  
135  
148  
126  
124  
121  
122  
*
123  
8
Form 10590149-Edition 2  
 
( 2-TON MODELS) 123  
( 1-TON MODELS) 149  
*
122 ( 2-TON MODELS)  
148 ( 1-TON MODELS)  
*
153  
152  
150  
CAUTION : TIGHTEN NUTS 25 TO 30 FT.  
LBS. TORQUE ONLY.  
151  
152  
153  
++ ASSEMBLE WITH SPLIT SIDE ONE UP AND ONE DOWN.  
+ ASSEMBLE WITH SPLIT SIDE ONE UP OR DOWN.  
144  
119  
116  
120  
143  
+
1
4
3
2
147  
9
(1-TON MODELS)  
++  
10  
155  
++  
154  
11  
12  
(2-TON MODELS)  
*
5
*
6
7
8
13  
*
*
34  
31 32  
*
30  
14  
33  
34  
*
*
49  
33  
*
39  
*
38  
50  
44  
37  
41  
37  
*
36  
*
*
*
15 16 17 18 19 20  
X
x
*
48 47 46  
45  
43  
42  
40  
35  
*
UPDN  
21  
*
*
*
51  
22  
27  
24  
23  
25  
21 20 19 18 29 16  
24  
*
*
*
26  
*
28  
DO NOT ATTEMPT TO ADJUST OR REMOVE THESE VALVES ON  
SPARK RESISTANT MODELS.  
156  
157  
158  
159 160  
161 162 163 164  
62  
165  
166  
63  
64  
PART NUMBER  
THIS SIDE.  
167  
174  
65  
66  
67  
*
*
175  
176  
177  
68  
180  
69  
Y
178  
179  
169  
171  
168  
170  
172 173  
181  
182  
184 185  
183  
DOWN  
UP  
ITEMS INCLUDED IN SERVICE KIT PART NUMBER 41619-1.  
ITEMS INCLUDED IN SERVICE KIT PART NUMBER 41759.  
ITEMS INCLUDED IN 43004 SHAFT ASSEMBLY  
*
Form 10590149-Edition 2  
9
 
Parts List  
Sl. no.  
Description  
Part no. Sl. no.  
Description  
Part no.  
42977  
Head Assembly (standard models) includes  
items 1 thru 21, 24 thru 30, 33 and 34 with  
adapter (46211)  
MOTOR ASSEMBLY (includes items 36  
thru 45)  
46126-2  
* 36  
Retaining Ring  
Bearing (2 req'd)  
End Plate  
Y145-22  
42086  
Head Assembly (spark-resistant models)  
(includes items 1 thru 19, 24 thru 30, 33, 34  
and 59 with adapter 46212)  
* 37  
38  
43076  
46126-3  
39  
Cylinder (includes item 40)  
Roll Pin  
43130  
1
Adapter  
40  
Y178-73  
43068  
for standard models  
for spark-resistant models  
Screen  
46211  
46212  
31648  
46839  
41  
* 42  
43  
Rotor  
Blade (8 req'd)  
End Plate  
43067  
2
3
42958  
Swivel  
* 44  
45  
Key  
30934  
SWIVEL KIT (includes items 1 thru 3)  
Spindle  
42959  
for standrad models (includes adapter 46211) 46840  
for spark-resistant models (includes adapter  
*46 Retaining Ring (2 req'd)  
*47 Bearing (2 req'd)  
Y147-200  
92962-ARO  
Y145-25  
42149  
46212)  
46841  
* 48  
Retaining Ring  
Seal  
4
* 5  
6
Retaining Ring  
"O" Ring (2 req'd)  
Swivel Body  
"O" Ring  
Y145-28 * 49  
Y325-115  
33314  
50  
Shaft  
42960  
SHAFT ASSEMBLY (includes items 49  
and 50)  
43004  
* 7  
* 8  
9
Y325-17  
46072  
Screen  
Capacity Label (not shown)  
1000 kg (2200 lb.)  
2400 lb.  
Cap Screw (2 req'd)  
Washer (2 req'd)  
Exhaust Deflector  
Screen  
Y154-53  
Y14-10  
42954  
46067-3  
44198-7  
46067-4  
44198-9  
44198-10  
10  
11  
12  
2000 kg (4400 lb)  
1500 lb.  
42957  
* 13  
14  
Muffler Filler  
42956  
3000 lb.  
Head (includes roller bearing 33239 and  
three pipe plugs Y227-3, not shown)  
51  
Housing (includes item 52, pipe plug  
Y227-2-L, set screw Y29-44 and  
warning label 43640, not shown)  
46125  
42996  
15  
* 16  
17  
Valve Body  
43079  
"O" Ring (2 req'd)  
Lift Valve  
04614574  
43080  
Nameplate (not shown)  
41596  
Drive Screw (4 req'd) (not shown)  
Y60-44  
42967  
* 18  
19  
"O" Ring (2 req'd)  
Adapter (2 req'd)  
Y325-25 *52 Seal  
40017  
* 53  
* 54  
55  
"O" Ring  
Y325-46  
Y325-155  
42963  
* 20  
"O" Ring (2 req'd) (not required with pendent  
control models)  
"O" Ring  
Y325-116  
Ring Gear  
"O" Ring  
21  
Valve Cap (2 req'd) (not required with  
pendent control models)  
* 56  
* 57  
58  
Y325-211  
Y117-875  
42964  
34026  
Washer  
22  
23  
24  
Cap Screw (6 req'd)  
Washer (6 req'd)  
Set Screw (2 req'd)  
for standard models  
for spark-resistant models  
Gear  
Y154-54  
Y14-10  
Nut  
59  
Control Rod  
Brake Block  
Roll Pin  
46121  
60  
34029  
41598  
61  
Y178-60  
43033  
41627-1  
34022  
62  
Hanger (2 req'd)  
25  
* 26  
27  
63 Chain Guide  
42989  
Roll Pin  
Y178-56 64 Pocket Wheel  
42961-ARO  
42990  
"O" Ring (2 req'd)  
Valve (2 req'd)  
Descent Valve  
Oilite Casting  
Y325-111  
43107  
65  
Plate  
28  
* 66  
Washer (6 req'd)  
Y117-10  
Y154-52  
43133  
29  
43081  
*67 Cap Screw (6 req'd)  
30  
33190  
68  
69  
70  
71  
72  
73  
Control Arm  
Roll Pin  
* 31  
* 32  
33  
Gasket  
43008  
Y178-55  
42975  
"O" Ring  
Y325-9  
31389  
Retaining Ring  
Bearing  
Washer (2 req'd)  
Oil Screw (2 req'd)  
"O" Ring (2 req'd)  
41864  
34  
30747  
Shaft  
43072-1  
40048  
* 35  
Y325-12  
Bearing  
10  
Form 10590149-Edition 2  
 
Parts List  
Sl. no.  
Description  
Part no. Sl. no.  
Description  
Part no.  
43041  
* 74  
75  
Cotter Pin  
Carrier  
Y15-32  
42965  
115 Bearing Race  
116 Collar  
43032  
76  
Bearing Race (4 req'd)  
Gear (2 req'd)  
Shaft (2 req'd)  
Spacer  
42364  
117 Roll Pin  
118 Roll Pin  
Y178-128  
Y178-117  
37391  
77  
42971  
78  
42973  
119 Bearing Race (2 req'd)  
120 Thrust Bearing  
121 Yoke  
79  
42974  
37392  
* 80  
* 81  
* 82  
* 83  
Bearing  
42968  
43037  
Bearing  
Y65-12  
Y147-112  
Y145-18  
* 122 Safety Latch (includes bolt, nut and spring) 420230  
123 Hook  
Retaining Ring  
Retaining Ring  
Steel Hook for standard 2 ton models  
(includes item 122)  
43031  
Gearing Assembly (includes items 70 thru  
73 and 75 thru 83)  
42976  
Bronze Hook for 2400 and 3000 lb spark-  
resistant models (includes item 122)  
43083  
84  
85  
Fixed Ring Gear  
Roll Pin (2 req'd)  
"O" Ring (6 req'd)  
Wave Washer  
Seal  
42966  
Y178-101  
Y325-10  
40041  
YOKE AND HOOK ASSEMBLY with steel 43047  
hook, for standard 2 ton models (includes  
items 114 thru123)  
86  
87  
* 88  
89  
04565511  
43118  
YOKE AND HOOK ASSEMBLY with  
bronze hook, for 2400 and 3000 lb spark-  
resistant models (includes items 114 thru  
End Plate (Includes item 88, bracket  
42980-1 and roll pin Y178-44, not shown)  
123)  
43099  
END PLATE and RING GEAR  
ASSEMBLY (includes items 84 thru 89,  
101 and 102  
LOWER BLOCK ASSEMBLY for standard 43048  
2 ton models (includes items 114 thru 129  
with steel hook)  
43003  
90  
91  
Screw  
37701  
Ball (2 req'd)  
Brake Shoe (2 req'd)  
Brake Wheel  
Y16-10  
42994  
LOWER BLOCK ASSEMBLY for spark-  
resistant models (includes items 114 thru  
129 with bronze hook)  
* 92  
93  
43101  
43071-1  
42982  
*94 Brake Spring  
124 Bolt  
Y5-85-C  
Y14-816  
43039  
95  
96  
97  
98  
Housing Cap  
Cap Screw (2 req'd)  
Drive Screw (4 req'd)  
Capacity Plate  
1500 lb.  
42979  
125 Washer (2 req'd)  
126 Spacer (2 req'd)  
127 Spacer (2 req'd)  
128 Shaft  
Y154-54  
Y60-43  
43042  
43038  
45278  
41589  
43116  
43050  
129 Bolt (includes grease fitting 35323)  
130 Shroud (2 req'd)  
for standard 2 ton models  
40072  
1 ton  
2400 lb.  
43043  
3000 lb.  
for 2400 lb models (includes capacity plate 43121  
43123 and four drive screws Y60-30, not  
shown)  
2 ton  
* 99  
Nut  
Y12-106-C  
Y117-616  
42993  
for 3000 lb models (includes capacity plate  
45281 and four drive screws Y60-30, not  
shown)  
* 100 Washer  
45282  
101 Shoulder Screw (4 req'd)  
102 Washer (4 req'd)  
103 Cap Screw (4 req'd)  
104 Washer (4 req'd)  
105 Clevis  
Y1-416-C  
Y99-41  
133 Washer (3 req'd)  
134 Cap Screw (3 req'd)  
135 Nut (3 req'd)  
136 Cap Screw  
Y14-416  
Y99-49  
30997  
Y242-12-B  
Y99-44  
34987  
106 Roll Pin  
Y178-104  
137 Chain Stop (2 req'd)  
138 Nut  
43127  
107 Link Chain  
Y107-4-Z  
for 1 ton, standard models, 10 ft (3 m) lift 42988-11  
for 2400 and 3000 lb, spark-resistant  
Chain Stop Assembly (includes items 136  
thru 138)  
43128  
42999  
42998  
43702-1  
43028  
34321  
Y16-10  
43019  
43702-2  
models, 10 ft (3 m) lift  
108 Retaining Ring (2 req'd)  
109 Anchor Pin  
43095-22  
Y145-8  
43020  
139 Snap Ring  
140 Sleeve  
141 Pin  
* 110 Retaining Ring (2 req'd)  
111 Pin  
Y145-2  
42970  
142 Connector  
143 Collar  
112 Anchor Bracket  
113 Chain Stop  
43034  
* 144 Ball (11 req'd)  
145 Bucket  
146 Pin  
43051-1  
43046  
114 Sheave and Bearing  
Form 10590149-Edition 2  
11  
 
Parts List  
Sl. no.  
Description  
Part no. Sl. no.  
Y178-122 173 Screw (4 req'd)  
174 Connector (3 req'd)  
Description  
Part no.  
Y61-85-C  
Y54-2  
147 Roll Pin  
* 148 Safety Latch (includes bolt, nut and spring) 35023  
149 Hook  
175 Handle  
43122  
Steel Hook for standard 1 ton models  
34337  
176 Roll Pin (2 req’d)  
177 Lever (up)  
178 Lever (down)  
y178-58  
45616-2  
45616-1  
Bronze Hook for 1500 lb spark-resistant  
models  
34651  
LOWER HOOK ASSEMFLY for 1 ton  
models (includes items 143 thru 145 and  
147 thru 149 with steel hook)  
179 Guard Assembly (includes warning plate 44312  
44197 and four rivets 45119)  
43000  
LOWER HOOK ASSEMBLY for 1500 lb  
spark-resistant models (includes items 143  
HANDLE ASSEMBLY (includes items  
168 thru 179)  
43102  
thru 145 and 147 thru 149 with bronze hook 43110  
PENDENT CONTROL ASSEMBLY  
(includes items 156 thru 179)  
43106-6  
37659  
UPPER HOOK ASSEMBLY for standard 1  
ton models (includes items 143, 144 and  
147 thru 150 with steel hook  
180 "S" Hook (2 req'd)  
181 Handle (2 req'd)  
33268  
43002  
43097  
182 Control Handle (includes item 185)  
183 Sash Chain (2 req'd)  
184 Anchor (2 req'd)  
44806  
UPPER HOOK ASSEMBLY for 1500 lb  
spark-resistant models (includes items 143,  
144 and 147 thru 150 with bronze hook  
37657-5  
37723  
185 Warning Label  
44596  
UPPER HOOK ASSEMBLY for standard 2  
ton models (includes items 116, 119, 120,  
PULL CHAIN CONTROL ASSEMBLY  
(includes items 180 thru 185)  
40004-5  
122, 123, 150, 154 and 155 with steel hook) 43049  
186 Trolley Wheel (4 req'd)  
for "I" Bean mounting  
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)  
43096  
for standard 1 ton models  
for spark-resistant 1 ton models  
41015  
41015-1  
150 Bracket  
for standard 2 ton models  
for spark-reistant 2 ton models  
for "H" Beam mounting (flat tread wheel)  
for standard 1 ton models  
for standard 2 ton models  
187 Spacer (8 req'd)  
40149  
for 1 ton and 1500 lb models  
for 2 ton, 2400 and 3000 lb models  
151 Mounting Rod (2 req'd)  
152 Washer (4 req'd)  
153 Nut (4 req'd)  
42997  
40149-1  
43030  
43001  
45376  
45377  
46049  
46049  
154 Roll Pin  
Y178-128  
Y178-117  
43017  
for 1 ton models  
41022  
155 Roll Pin  
for 2 ton modeles  
Y13-12-C  
43052  
CYLINDER ASEMBLY (2 req'd) (includes  
items 156 thru 164)  
188 Side Plate (2 req'd)  
189 Lock Washer (8 req'd)  
190 Nut (4 req'd)  
Y14-750  
Y12-12  
46049  
156 Elbow  
Y54-23  
41064-1  
Y325-222  
41066  
157 Cylinder  
158 "O" Ring  
159 Piston  
191 Nut (4 req'd)  
192 Shaft (2 req'd)  
43009  
193 Washer (84 req'd)  
194 Nameplate (not shown)  
195 Skid Bracket (4 req'd) (not shown)  
196 Rivet (8 req'd)  
43014  
160 Piston Rod  
161 Spring  
42955  
44081-1  
44618-1  
Y193-33  
33981  
162 "O" Ring  
163 Adapter  
164 "O" Ring  
165 Elbow  
Y325-13  
41067  
TROLLEY ASSEMBLY  
Y325-116  
Y54-23  
33989  
for spark-resistant models (includes  
items 186 thru 196)  
166 Adapter (2 req'd)  
for 1 ton models  
for 2 ton models  
7763-BC  
7764-BC  
167 Hose Assembly (includes hoses and strain  
cable)  
43103-6  
for standard models (includes items 186  
thru 194)  
168 Screw (2 req'd)  
169 "O" Ring (2 req'd)  
170 Spring (2 req'd)  
171 Valve (2 req'd)  
172 "O" Ring (2 req'd)  
37511  
Y325-111  
32858  
for 1 ton models ("I" Beam)  
for 1 ton models ("H" Beam)  
for 2 ton models ("I" Beam)  
for 2 ton models ("H" Beam)  
7795-FT  
7796  
34757  
Y325-6  
7796-FT  
41619-1  
41759  
*
SERVICE KIT: includes items marked *  
SERVICE KIT: includes items marked ꢀ  
12  
Form 10590149-Edition 2  
 
Model Identification  
Model No.  
7790-A9  
Upper Mounting  
Hook Ass’y 43002  
None *  
Type Control  
Pull Chain  
Pull Chain  
Pendent  
Type Load Chain  
Lbs. (Kg.) Capacity  
Link  
Link  
Link  
Link  
Link  
Link  
Link  
Link  
7790-A11  
2,200  
(1000 Kg)  
7790-A13  
Hook Ass’y 43002  
None *  
7790-A15  
Pendent  
7792-A9  
Hook Ass’y 43049  
None *  
Pull Chain  
Pull Chain  
Pendent  
7792-A11  
4,400  
(2,000 Kg)  
7792-A13  
Hook Ass’y 43049  
None *  
7792-A15  
Pendent  
Spark Resistant Models  
Model No.  
Upper Mounting  
Hook Ass’y 43097  
None*  
Type Control  
Pull Chain  
Pull Chain  
Pull Chain  
Pull Chain  
Pull Chain  
Pull Chain  
Type Load Chain  
Link **  
Lbs. (Kg.) Capacity  
7790-A21  
1,500  
(680 Kg)  
7790-A22  
Link **  
7792-A21  
Hook Ass’y 43096  
None*  
Link **  
2,400  
(1,089 Kg)  
7792-A22  
Link **  
7792-A23  
Hook Ass’y 43096  
None*  
Link **  
3,000  
(1,361 Kg)  
7792-A24  
Link **  
* FOR TROLLEY MOUNTING - TROLLEY MUST BE ORDERED SEPARATELY  
** STAINLESS STEEL LINK CHAIN AND BRONZE HOOKS.  
Form 10590149-Edition 2  
13  
 
Notes  
14  
Form 10590149-Edition 2  
 
Notes  
Form 10590149-Edition 2  
15  
 
© 2005 Ingersoll-Rand Company  
 

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