Assembly Procedure
Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.
Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
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| Illustration 1 | g01332824 |
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Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment. |
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- Install valve (52), spring (51), valve (50), and spring (49). Install the O-ring seal and plug (48). Repeat for the remaining valve assemblies.
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| Illustration 2 | g01332821 |
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| Illustration 3 | g01332823 |
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Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment. |
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- Install spool (44), retainer (43), and spring (42). Install the O-ring seal and plug (41). Install retainer (45) and spring (46). Install the O-ring seal and plug (47) .
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| Illustration 4 | g01332702 |
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| Illustration 5 | g01332813 |
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Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment. |
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- Install spool assembly (39). Install the O-ring seal and plug (40). Tighten plug (40) to a torque of 122 ± 12 N·m (90 ± 9 lb ft).
- Install retainer (38) and spring (37). Install the O-ring seal and plug (36). Tighten plug (36) to a torque of 122 ± 12 N·m (90 ± 9 lb ft).
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| Illustration 6 | g01332699 |
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| Illustration 7 | g01332700 |
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Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment. |
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- Install spool (32), retainer (31), and spring (30). Install the O-ring seal and plug (29). Install retainer (33) and spring (34). Install the O-ring seal and plug (35) .
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| Illustration 8 | g01332649 |
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Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment. |
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- Install spool assembly (27). Install the O-ring seal and plug (26). Tighten plug (26) to a torque of 142 ± 14 N·m (105 ± 10 lb ft). Install the O-ring seal and plug (28) .
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| Illustration 9 | g01332630 |
- Reposition the control valve, as shown.
- Install relief valves (24) and (25). Tighten all of the relief valves to a torque of 45 ± 5 N·m (33 ± 4 lb ft).
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| Illustration 10 | g01332628 |
- Install O-ring seals (21), backup ring (22), and screen (23) onto cartridge assembly (20) .
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| Illustration 11 | g01332622 |
- Install cartridge assembly (20). Tighten cartridge assembly (20) to a torque of 30 ± 3 N·m (22 ± 2 lb ft).
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| Illustration 12 | g01332621 |
- Install O-ring seals (19) onto coil assembly (17) .
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| Illustration 13 | g01332620 |
- Install coil assembly (17) and nut (18). Tighten nut (18) to a torque of 3.4 ± 0.4 N·m (30.1 ± 3.5 lb in).
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| Illustration 14 | g01332609 |
- Install O-ring seals (16) onto solenoid (15) .
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| Illustration 15 | g01332430 |
- Install solenoid (15), retainer (14), and bolt (13). Tighten bolt (13) to a torque of 28 ± 7 N·m (21 ± 5 lb ft).
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| Illustration 16 | g01332426 |
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| Illustration 17 | g01332423 |
- Install O-ring seals (12) onto cartridge assemblies (11) .
- Install cartridge assemblies (11). Tighten cartridge assemblies (11) to a torque of 40 ± 5 N·m (30 ± 4 lb ft).
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| Illustration 18 | g01332421 |
- Install coil assemblies (10) and nuts (9). Tighten nuts (9) to a torque of 13 ± 1.5 N·m (115 ± 13 lb in).
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| Illustration 19 | g01332411 |
- Install O-ring seals (8) onto solenoid (5) .
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| Illustration 20 | g01332409 |
- Install solenoid (5), retainer (6), and bolt (7). Tighten bolt (7) to a torque of 28 ± 7 N·m (21 ± 5 lb ft).
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| Illustration 21 | g01332400 |
- Install O-ring seals (4) onto cartridge assemblies (3) .
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| Illustration 22 | g01332399 |
- Install cartridge assembly (3) and nuts (2) .
Note: Nuts (2) are being installed temporarily in order to prevent the nuts from being lost. The coil assemblies will not be installed until the control valve is installed into the machine.
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| Illustration 23 | g01332398 |
- Install hose (1) .
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Install the control valve. Refer to Disassembly and Assembly, "Control Valve (Work Tool) - Install".
