Disassembly Procedure
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Table 1
Required Tools     |
Tool     |
Part Number     |
Part Description     |
Qty     |
A     |
1P-0510     |
Driver Gp     |
1     |
B     |
1P-0074     |
Slide Hammer Puller Gp     |
1     |
4C-5648 |
Threaded Adapter Gp     |
1     |
C     |
147-3497     |
Spring Compressor     |
1     |
Start By:
- Remove the piston pump.
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Illustration 1 | g03726663 |
- Remove bolts (1) and adapter (2) from the head assembly.
- Remove tubes (3) .
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Illustration 2 | g03727096 |
- Remove O-ring seal (3) from adapter (2) .
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Illustration 3 | g03727099 |
- Remove coupling assembly (5) and O-ring seal (6) .
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Illustration 4 | g03727101 |
Note: Mark the orientation for installation purposes.
- Remove housing assembly (7) .
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Illustration 5 | g03727105 |
- Remove plate (8), retainers (9), and O-ring seal (10) .
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Illustration 6 | g03727111 |
- Remove bolts (11) and head (12) .
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Illustration 7 | g03727126 |
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Illustration 8 | g03727131 |
- Remove O-ring seals (13) and port plate (14). Remove locating pins (15) and bearing (16) .
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Illustration 9 | g03428805 |
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Illustration 10 | g03428835 |
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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 (17), relief valve assembly (18), and spring (19) .
- Remove O-ring seal (20) and backup ring (21) from plug (17) .
- Repeat Steps 9 and 10 for the opposite side.
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Illustration 11 | g03431722 |
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Illustration 12 | g03431724 |
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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 (22) and the O-ring seal from head assembly (6) .
- Remove adapter (31) and the O-ring seal from head assembly (6) .
- Remove the following items from the head assembly: spring collar (30), spring (29), spring collar (28), control piston (27), piston (26), valve bushing (25), valve piston (24), poppet seat (23) and the O-ring seal.
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Illustration 13 | g03727155 |
- Remove bolts (32) and valve group (33) .
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Illustration 14 | g03727161 |
- Remove gasket (34) .
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Illustration 15 | g03727192 |
- Remove adapters (35) and the O-ring seals.
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Illustration 16 | g03727197 |
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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 (36), spring (38), retainers (39), and spool (40) .
- Remove O-ring seal (37) from plug (36) .
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Illustration 17 | g03727233 |
- Remove caps (42) and (44). Remove the O-ring seals and coil assemblies (41) and (43) .
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Illustration 18 | g03727452 |
- Remove cartridge assemblies (46) and (47). Remove spool assembly (45) .
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Illustration 19 | g03432608 |
- Remove O-ring seal (48) and remove rotating group (49) .
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Illustration 20 | g03432610 |
- Remove pistons (50) and remove retainer plate (51) from the rotating group. Remove retainer (52) from the rotating group.
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Illustration 21 | g03432612 |
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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 (A) and a suitable press in order to apply slight compression to the spring. Remove retaining ring (53) .
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Illustration 22 | g03432613 |
- Remove the following items from barrel assembly (56) : retaining ring (53), spring (54), washer (55) and pins (57) .
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Illustration 23 | g03432617 |
- Remove swashplate assembly (58) .
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Illustration 24 | g03432619 |
- Remove block (59) and remove pin (60) from swashplate assembly (58). Remove bearing (61). Remove pin (63) and remove bearing (62) from swashplate assembly (58) .
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Illustration 25 | g03432622 |
- Remove bearing races (64) .
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Illustration 26 | g03432624 |
- Remove retaining ring (65) .
- Use Tooling (B) in order to remove lip seal (66) .
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Illustration 27 | g03432627 |
- Remove retaining ring (67) .
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Illustration 28 | g03432629 |
- Remove shaft (68) .
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Illustration 29 | g03432631 |
- Remove retaining ring (69) from shaft (68). Remove bearing (70) from shaft (68) .
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Illustration 30 | g03432639 |
- Remove bolts (71). Remove cover (72) and the piston assembly (not shown).
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Illustration 31 | g03428671 |
Note: Measure the distance and record the distance from the end of piston assembly (73) to nut (74) for assembly purposes.
- Remove nut (74) and remove piston assembly (73) from cover (72) .
- Remove O-ring seal (75) (not shown) from cover (72) .
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Illustration 32 | g03432982 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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- Use a suitable press in order to remove retaining ring (76) .
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Illustration 33 | g03432990 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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- Use Tooling (C) and a suitable press in order to remove ring assembly (77) .
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Illustration 34 | g03433235 |
- Remove spring retainer (78). Remove springs (79), (80), and (81). Remove spring retainer (82) .
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Illustration 35 | g03433243 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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- Use a suitable press in order to remove retaining ring (83) .
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Illustration 36 | g03433245 |
- Remove O-ring seal (84) and ring assembly (85). Remove spring retainer (86). Remove springs (87), (88), and (90). Remove spring retainer (89) and rod (91) .
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Illustration 37 | g03432662 |
- Remove two guide rings (92) and remove two seal rings (93) from the housing.
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Illustration 38 | g03432665 |
- Remove plug assembly (95) and remove pin retainer (94) from the housing.