Removal Procedure
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Table 1
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
138-7573 |
Link Bracket |
2 |
Start By:
- Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
Note: Put identification marks on all hose assemblies, fittings and ports so that all the components can be reassembled in the original configuration. Plug all of the hose assemblies and cap all of the fittings. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
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| NOTICE |
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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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| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
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- Drain the oil from the hydraulic tank into a suitable container for storage or disposal. Refer to Operation and Maintenance, "Hydraulic System Oil - Change".
- Turn the battery disconnect switch to the OFF position.
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| Illustration 1 | g01178474 |
- Remove cover (1) and bracket (2) .
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| Illustration 2 | g01178475 |
- Remove covers (3) .
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| Illustration 3 | g01178476 |
- Remove front light (4). Disconnect harness assembly (5) .
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| Illustration 4 | g01178477 |
- Cut cable straps (6) and reposition harness assembly (7) .
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| Illustration 5 | g01178478 |
- Attach Tooling (A) and a suitable lifting device to support assembly (8). The weight of support assembly (8) is approximately 61 kg (135 lb). Remove support assembly (8) .
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| Illustration 6 | g01178479 |
- Cut cable strap (9). Disconnect harness assembly (10) and position harness assembly (10) aside.
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| Illustration 7 | g01178480 |
- Disconnect all pilot line hose assemblies (11) from the top of main control valve assembly (12). Disconnect hose assemblies (13), (14), and (15) .
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| Illustration 8 | g01178481 |
- Disconnect hose assemblies (16), (17), and (18). Disconnect manifold (19) .
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| Illustration 9 | g01178482 |
- Disconnect all pilot hose assemblies (24) from the bottom of main control valve assembly (12). Disconnect hose assemblies (21), (23), and (25). Disconnect manifolds (20) and (22) .
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| Illustration 10 | g01178483 |
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| Illustration 11 | g01178484 |
- Attach Tooling (A) and a suitable lifting device to main control valve assembly (12). The weight of main control valve assembly (12) is approximately 231 kg (510 lb). Remove bolts (26) and main control valve assembly (12) .
