10. Install attachment (right) (523) and (left) (524) to pendant handle (514) and
secure with washers (526) and capscrews (525) and (527). Install shorter
capscrews in back, longer capscrews in front.
11. Facing pendant handle operation side, place levers (522) such that lever direction
indicates ‘LEFT’ on left hand side and ‘RIGHT’ on right hand side. Install pins (529)
ensuring pins insert through levers and locate on side of pendant handle.
12. Install exhaust washer (513) in pendant handle and secure with retainer ring
(512).
13. Attach hoses to fittings located on top of pendant handle. Locate hoses to fittings
as shown in the "INSTALLATION'' section of Product Information Manual.
14. Lubricate and install new ‘O’ rings (70) on motor cover (83) for pendant or rope
control assembly.
15. Ensure valves move freely in the bores of the motor cover.
16. Align gasket (607) with motor cover (83). Ensure not to damage ‘O’ rings.
17. Align and install adapter plate (605) or (613) with capscrews (604) or (612) and
lockwashers (75) to motor cover (83).
18. Adjustment:
a. Connect the inlet of the pendant to 100 psi (7 bar) air supply.
b. Connect a manometer at the outlet of the lever to be adjusted.
c. Apply a small amount of Loctite® No. 243 on the adjustment screw (258).
d. Tighten the adjustment setscrew to obtain a pressure of 15 psi (1 bar) without
actioning the lever.
e. Release the adjustment setscrew by a half turn (pressure must fall to zero).
f. Push the lever. Check that pressure reaches 93 +/-7 psi (6.5 +/- 0.5 bar).
Check that there is no leak at the exhaust.
g. Release the lever, exhaust must occur and result in rapid pressure reduction.
h. Repeat operations ‘f’ and ‘g’, 2 to 3 times.
i. Disconnect the manometer. Check to ensure that there are no leaks when the
lever is not activated.
j. Repeat the operations from ‘12b’ to ‘12i’ with each lever.
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Bottom Hook Assembly
1.5 ton Single Fall
Refer to Dwg. MHP2657.
1. Install hook (106) in hook block (113).
2. Install eleven balls (117) through threaded hole in hook block (113). Install plug
(115).
3. Install load chain and pin (114) in hook block (113).
4. Install ring (112) and retainer wire (111) on hook block (113).
3 ton Double Fall
Refer to Dwg. MHP2657.
1. Install bearings (119) on sprocket (120).
2. Install thrust bearing (125) and ring halves (124) on hook (106).
3. Position sprocket and hook assemblies between hook block halves (118) and
(121).
4. Tap half hook blocks together and install capscrews (56), lockwashers (122) and
nuts (123). Refer to “TORQUE CHART” on page 19 for torque requirements.
4 ton and 6 ton Single Fall
Refer to Dwg. MHP3006.
1. Install thrust bearing (125) and ring halves (124) on hook (106).
2. Place load chain and hook assembly between hook block halves (118) and (218).
3. Press half hook blocks (118) and (218) together.
4. Install capscrews (56), lockwashers (122) (6 ton only) and nuts (123). Refer to
“TORQUE CHART” on page 19 for torque requirements.
8 ton and 12 ton Double Fall
Refer to Dwg. MHP3006.
1. Install ‘O’ rings (129) and bearings (119) on sprocket (120).
2. Install thrust bearing (125) and ring halves (124) on hook (106).
3. Position sprocket and hook assemblies between hook block halves (118) and
(218).
4. Tap half hook blocks together and install capscrews (56), lockwashers (122) and
nuts (123). Refer to “TORQUE CHART” on page 19 for torque requirements.
18 ton Triple Fall
Refer to Dwg. MHP3018.
1. Install ‘O’ rings (129) and bearings (119) on sprocket (120).
2. Install thrust bearing (125) and ring halves (124) on hook (106).
3. Position sprocket and hook assemblies between hook block halves (118) and
(218).
4. Tap half hook blocks together and install capscrews (133), lockwashers (122) and
nuts (123). Refer to “TORQUE CHART” on page 19 for torque requirements.
6 ton and 25 ton Quad Fall
Refer to Dwgs. MHP2821 and MHP3029.
1. Install ‘O’ rings (129) or quad rings (130) (6 ton hoist only) and bearings (119)
on sprockets (120).
2. Install a sprocket assembly in each hook block half.
3. Install thrust bearing (125) and ring halves (124) on hook (106).
4. Install pin (131) in center ring (132).
5. Position hook assembly and center ring assembly between hook block halves (118)
and (218).
6. Tap half hook blocks together and install capscrews (133), lockwashers (122) and
nuts (123). Refer to “TORQUE CHART” on page 19 for torque requirements.
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Rope Control Assembly
Refer to Dwg. MHP2662.
NOTICE
• When changing from a pendant to rope control change three setscrews in
motor item 606 with setscrews item 180.
1. Install balls (47) and springs (306) in rope control block (313).
2. Install retainer rings (305).
3. Install balls (308), springs (307) and plugs (304).
4. Lubricate and install ‘O’ rings (53), and (171), and protectors (170) on each valve
(315).
5. Install valves (315).
6. Install adjustment screws (311) and nuts (310).
7. Install setscrews (309).
8. Position ‘O’ rings (70) and spacers (319) on both sides of lever then install lever
(317) in rope control block (313). Install nut (314) and capscrew (312).
9. Install rings (318), pull chain (323) and throttle handles (321) on lever if removed
during disassembly.
10. Install new gasket (302) on rope control block.
11. Install rope control block (313) assembly on hoist motor.
12. Install capscrews (316) and washers (75). Refer to “TORQUE CHART”
on page 19 for torque requirements.
n
Load Test
Prior to initial use, all extensively repaired hoists shall be load tested by or under the
direction of an
Ingersoll Rand
trained technician and a written report furnished
confirming the rating of the tested equipment.
Dynamically load test hoist to 125% of its rated capacity in accordance with ASME
B30.16 standards. Testing to more than 125% is required to set overload device and
may be necessary to comply with standards and regulations set forth in areas outside
the USA.
n
Limit Switches
Operate hoist through three complete cycles to ensure consistent limit switch
operation /- 2 feet (0.6 m) of set points. Refer to ”Limit Switch Adjustment”
procedure in Product Information Manual to establish set points.
16
Form MHD56279 Edition 4
