Disassembly Procedure
Start By:
- Remove the main control valve. Refer to Disassembly and Assembly, "Main Control valve - Remove".
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
- Place main control valve (1) on suitable blocks.
 | |
| Illustration 1 | g01172679 |
- Remove all the caps and the plugs from main control valve (1) .
- Disconnect tube assembly (2) .
 | |
| Illustration 2 | g01172681 |
- Remove bolts (3) and combination valve (4) .
- Remove O-ring seals (5) .
 | |
| Illustration 3 | g01172682 |
 |
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. |
 |
- Remove bolts (7) .
- Remove block (6) .
- Remove valve (13) and the O-ring seals.
 | |
| Illustration 4 | g01172683 |
- Remove spring (10), seat (9), and O-ring seal (8) .
- Remove fitting (11), solenoid (12), and cap (14) from block (6) .
- Remove bolts (15) .
 | |
| Illustration 5 | g01172684 |
|
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. |
|
- Remove cover (21), cap (22), spring (18), seat (17), spool (16), and O-ring seal (20) .
 | |
| Illustration 6 | g01172685 |
- Remove plug (19), valve (23), and the O-ring seals.
- Remove valves (24) and the O-ring seals. Remove plug (26) and the O-ring seal. Remove spring (28) and spool (27). Remove plug (25) and the O-ring seal. Remove spring (30) and piston (29) .
 | |
| Illustration 7 | g01172686 |
 | |
| Illustration 8 | g01172687 |
|
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. |
|
- Remove bolts (34) and valve (33) .
 | |
| Illustration 9 | g01172689 |
- Remove plugs (31) .
- Remove fitting (32) .
- Remove solenoid (35) .
 | |
| Illustration 10 | g01172698 |
 | |
| Illustration 11 | g01172699 |
|
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. |
|
- Remove plug (37), spring (39), cone (40), and the O-ring seal.
- Remove plugs (38) and the O-ring seals.
- Remove fitting (36) and the O-ring seal.
- Remove bolts (41) .
 | |
| Illustration 12 | g01172744 |
 | |
| Illustration 13 | g01172745 |
|
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. |
|
- Remove actuator cover (42), nut (48), spring (43), seat (44), and O-ring seal (45) .
- Remove valve (46) and the O-ring seal.
- Remove valve (47) and the O-ring seal.
- Remove the remaining actuator covers (42) and valves (46) .
 | |
| Illustration 14 | g01172747 |
|
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. |
|
Note: Mark the location of any shims.
- Remove valve spools (49) .
 | |
| Illustration 15 | g01172748 |
Note: Mark the location of the valve spools.
- Remove valve (50) .
- Remove valve (51) .
 | |
| Illustration 16 | g01172750 |
- Remove plug (52) .
 | |
| Illustration 17 | g01172830 |
 | |
| Illustration 18 | g01172831 |
|
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. |
|
- Remove spring (54) and cone (53) .
- Repeat Steps 30 through 31 for the remaining plugs (52) .
- Remove cap (55) and the O-ring seal.
 | |
| Illustration 19 | g01172832 |
 | |
| Illustration 20 | g01172833 |
 | |
| Illustration 21 | g01172837 |
|
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. |
|
- Remove spring (58) .
- Remove spool (57) .
- Remove fitting (59) .
- Remove cap (56), the O-ring seal, spring (60), and spool (61) .