Disassembly Procedure
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Table 1
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
1P-0074 |
Slide Hammer Puller |
1 |
| 2P-2312 |
Puller Leg |
3 |
| B |
1P-1861 |
Snap Ring Pliers |
1 |
| C |
138-7574 |
Link Bracket |
2 |
| D |
1P-0510 |
Driver Group |
1 |
Start By:
- Remove the hoist control valve.
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| Illustration 1 | g01620428 |
- Remove bolts (1) in order to remove bracket (2) .
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| Illustration 2 | g01620432 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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Note: The relief valve must be removed in two sections in order to gain access to the mounting bolts.
- Remove bolts (3) in order to remove valve body (4) from valve body (5) .
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| Illustration 3 | g01620439 |
- Remove O-ring seals (6), O-ring seal (7), valves (8), springs (9), stops (10), shims (11), stems (12), and orifice (13) from valve body (4) .
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| Illustration 4 | g01620450 |
- If necessary, remove plug (14), plug (15), and plugs (16) from valve assembly (4) .
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| Illustration 5 | g01620457 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove bolts (17) in order to remove valve body (5) from body (18) .
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| Illustration 6 | g01620465 |
- Remove O-ring seal (19), O-ring seals (20), O-ring seal (21), O-ring seals (22), valve (23), and spring (24) from valve body (5) .
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| Illustration 7 | g01620481 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove plug (25), plug (26), spool (27), and spring (28). Use Tooling (A) in order to remove seats (29) from valve body (5) .
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| Illustration 8 | g01620492 |
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| Illustration 9 | g01620544 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- If necessary, remove plugs (30), plugs (31), and plugs (32) from valve body (5) .
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| Illustration 10 | g01620548 |
- Remove bolts (33) in order to remove actuator assembly (34) and adapter (35) .
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| Illustration 11 | g01620560 |
- Remove O-ring seal (36), plug (37), piston (38), and O-ring seal (39) .
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| Illustration 12 | g01620570 |
- Remove O-ring seals (40) and O-ring seal (41) .
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| Illustration 13 | g01620587 |
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| Illustration 14 | g01620594 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Use Tooling (D) and a suitable press in order to compress the springs. Use Tooling (B) in order to remove retaining ring (42). Release the compression slowly and remove Tooling (D) .
- Remove retainer (43), spring (44), spring (45), and spring (46) .
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| Illustration 15 | g01620605 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove cartridge (47) in order to remove coil assembly (48). Remove spring (49). Remove O-ring seal (50) .
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| Illustration 16 | g01620610 |
- Remove bolts (51). Remove plate (52) .
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| Illustration 17 | g01620775 |
- If necessary, remove plug (53) and plug (54). Remove O-ring seal (55). Remove spool (56) .
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| Illustration 18 | g01620783 |
- Remove stem (57) from body (18) .
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| Illustration 19 | g01620785 |
- Remove bolts (58) in order to remove actuator assembly (59) .
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| Illustration 20 | g01620788 |
- Remove O-ring seals (60) and O-ring seal (61) .
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| Illustration 21 | g01620790 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Use Tooling (D) and a suitable press in order to compress the springs. Use Tooling (B) in order to remove retaining ring (62). Release the compression slowly and remove Tooling (D) .
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| Illustration 22 | g01620805 |
- Remove retainer (63), spring (64), spring (65), and spring (66) .
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| Illustration 23 | g01620807 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove cartridge (67) in order to remove coil assembly (68). Remove spring (69). Remove O-ring seal (70) .
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| Illustration 24 | g01620809 |
- Remove bolts (71). Remove plate (72) .
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| Illustration 25 | g01620810 |
- If necessary, remove plug (73) and plug (74). Remove O-ring seal (75). Remove spool (76) .
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| Illustration 26 | g01620830 |
- If necessary, remove plug (77), plug (78), and plug (79) .
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| Illustration 27 | g01620832 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove plug (80) and O-ring seal (81). Remove spring (82). Remove bearing sleeve (83) and poppet (84). Repeat this step for the remaining plug (85) .
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| Illustration 28 | g01620419 |
- Use Tooling (C) and a suitable lifting device in order to turn over valve assembly (86). The weight of valve assembly (86) is approximately 141 kg (310 lb). Remove bolts (87) and bolts (88) in order to remove manifold assembly (89). The weight of manifold assembly (89) is approximately 55 kg (121 lb).
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| Illustration 29 | g01620854 |
- Remove O-ring seal (90), O-ring seal (91), O-ring seal (92), and O-ring seal (93) .
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| Illustration 30 | g01620932 |
- Remove relief valve (94). Remove bolts (95) in order to remove counterbalance valve (96) .
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| Illustration 31 | g01620934 |
- The following procedure illustrates the disassembly of relief valve (94) :
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove plug (97), O-ring seal (98), shims (99), spring (100), shims (101), valve (102), and O-ring seal (103) from valve body (104) .
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| Illustration 32 | g01620953 |
- Remove O-ring seals (105) and the backup rings from counterbalance valve (96) .
Note: The O-ring seals and the backup rings are the only serviceable parts of the counterbalance valve. The parts are available as a kit.
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| Illustration 33 | g01620957 |
- Remove plug orifice (106) from manifold assembly (89) .
- If necessary, remove plug (107), plug (108), and plug (109) from manifold assembly (89) .
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| Illustration 34 | g01620972 |
- Remove plug (110) from manifold assembly (89) in order to remove plug orifice (111) .
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| Illustration 35 | g01620974 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove plugs (112), plug (113), O-ring seal (114), spring (115), and poppet (116) .
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| Illustration 36 | g01620977 |
- Remove plug (117), O-ring seal (118), screen (119), and plug orifice (120) .
