Disassembly Procedure
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Table 1
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
1P-0510 |
Driver Gp |
1 |
| B |
9S-9152 |
Bearing Puller |
1 |
Start By:
- Remove the fan drive pump.
- Clean the outside of the piston pump thoroughly prior to disassembly.
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| Illustration 1 | g00670363 |
- In order to protect the shaft seal, use an adhesive tape to cover the drive shaft.
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| Illustration 2 | g02837036 |
- Remove bolts (2) and compensator valve (1) from pump body (3) .
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| Illustration 3 | g02837037 |
- Remove seal (4) from compensator valve (1) .
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| Illustration 4 | g02837056 |
- Remove plugs (5), plug (6) and the O-ring seals from compensator valve (1) .
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| Illustration 5 | g02837057 |
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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 (11), O-ring seal (10), springs (9), guide (8), and spool (7) from compensator valve (1) .
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| Illustration 6 | g02837058 |
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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 (16), O-ring seal (15), springs (14), guide (13), and spool (12) from compensator valve (1) .
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| Illustration 7 | g02837059 |
- Remove bolts (17) from head assembly (18) .
- Remove head assembly (18) .
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| Illustration 8 | g02840880 |
- Remove port plate (19) and O-ring seal (20) from head assembly (18) .
- Remove bearing cup (21) from head assembly (18) .
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| Illustration 9 | g02840916 |
- Remove bearing cone (22) .
- Remove O-ring seal (23) .
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| Illustration 10 | g02840957 |
- Remove adjustment shim (24) .
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| Illustration 11 | g02840958 |
- Remove plug (25) and the O-ring seal.
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| Illustration 12 | g02840960 |
- Carefully place the pump in a horizontal position.
- Remove rotary group (26) .
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| Illustration 13 | g02840961 |
- Remove piston assemblies (27) and piston retainer (28) from barrel assembly (29) .
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| Illustration 14 | g02840976 |
- Remove retaining ball (30) from barrel assembly (29) .
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| Illustration 15 | g02840978 |
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| Illustration 16 | g02840979 |
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Sudden release of spring force can cause injury. To prevent the possibility of injury, follow the procedure to relieve the spring pressure. |
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Note: There is spring force against retaining ring (31). When retaining ring (31) is removed, the spring force will be released. Removal of the internal assembly components in barrel (29) should be performed in a press. This is done in order to retain spring (34) and retaining ring (31) .
- Use a press and Tooling (A) to compress the spring in barrel assembly (29) .
- Remove retaining ring (31), spring (34), guide (33), and pins (32) from barrel assembly (29) .
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| Illustration 17 | g02840980 |
- Move the swashplate up and down in order to remove the control piston (35) .
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| Illustration 18 | g02840981 |
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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: In order to release piston rod (36) from the swashplate, lift the swashplate a little and move the piston rod sideways.
- Remove piston rod (36) .
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| Illustration 19 | g02840982 |
- Remove swashplate (37) .
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| Illustration 20 | g02840984 |
- Remove spring (38) .
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| Illustration 21 | g02840985 |
- Remove bearings (39).
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| Illustration 22 | g02840987 |
- Remove shaft assembly (40) .
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| Illustration 23 | g02840990 |
- Remove retaining ring (41) .
- Remove lip seal (42) .
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| Illustration 24 | g02840991 |
- Remove plugs (43) and the O-ring seals.
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| Illustration 25 | g02840993 |
- Remove bearing cup (44) from pump body (3) .
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| Illustration 26 | g02840996 |
- Use Tooling (B) and a suitable press to remove bearing cone (46) from shaft (40) .
