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
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