Disassembly Procedure
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Table 1
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
138-7573 |
Link Bracket |
4 |
Start By:
- Remove the hydraulic tank and filter. Refer to Disassembly and Assembly, "Hydraulic Tank and Filter - Remove".
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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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At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin. Before installation or removal of any hydraulic test equipment, relieve the pressure in the hydraulic tank by slowly loosening the filler cap. |
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Note: Cleanliness is an important factor. Before you begin the removal procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
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| Illustration 1 | g01179769 |
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| Illustration 2 | g01179651 |
- Attach Tooling (A) to the tank assembly. Raise the tank assembly in order to remove bolts (1), flange (2), bolts (3), and adapter (4) from the bottom of the tank assembly.
- Lower the hydraulic tank to the ground.
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| Illustration 3 | g01179652 |
- Remove switch assembly (5). Remove bolts (6) and flange assembly (7) .
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| Illustration 4 | g01179653 |
- Remove O-ring seal (8) .
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| Illustration 5 | g01179655 |
- Remove tube (9) from flange (10) .
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| Illustration 6 | g01179656 |
- Remove O-ring seal (11) and switch assembly (12) .
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| Illustration 7 | g01179657 |
- Disconnect hose (15). Remove bolts (13) and cover (14) .
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| Illustration 8 | g01179693 |
- Remove bolts (16) and housing (17). Remove O-ring seal (18) and screen assembly (19) .
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| Illustration 9 | g01179658 |
- Remove screen (20), nut (21), guide (23), and nut (22) from rod (24) .
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| Illustration 10 | g01179659 |
- Remove O-ring seal (25) from screen (20) .
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| Illustration 11 | g01179660 |
- Remove retaining ring (26) and cover (27) .
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| Illustration 12 | g01179661 |
- Remove O-ring seal (28) from cover (27) .
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| Illustration 13 | g01179662 |
- Remove filter (29) and O-ring seal (30). Remove bolts (31) and filter assembly (32) .
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| Illustration 14 | g01179663 |
- Remove O-ring seal (33) .
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| Illustration 15 | g01179664 |
- Remove bolts (34) and bolt (35). Repeat for the opposite side. Remove valve assembly (36) .
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| Illustration 16 | g01179665 |
- Remove O-ring seal (37) and setscrew (38). Remove valve assembly (39) from housing (40) .
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| Illustration 17 | g01179666 |
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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 nuts (47) and (48), retainer (46), spring (45), retainer (44), poppet (43), and adapter (42) from bolt (41) .
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| Illustration 18 | g01179667 |
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| Illustration 19 | g01179668 |
- Remove bolts (50), screws (51), and housing (49) .
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| Illustration 20 | g01179669 |
- Remove O-ring seal (52) from flange (53) .
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| Illustration 21 | g01179670 |
- Remove adapter (54) from housing (55) .
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| Illustration 22 | g01179671 |
- Remove bolt (59) and adapter (58) from pipe assembly (56). Remove O-ring seal (57) .
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| Illustration 23 | g01179672 |
- Remove O-ring seals (60), (62), (63), and (64). Remove pipe assembly (56) and pipe (61) .
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| Illustration 24 | g01179674 |
- Remove bolt (65) and plate (66) .
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| Illustration 25 | g01179675 |
- Remove O-ring seals (67), screws (68), and pads (69) from plate (66) .
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| Illustration 26 | g01179676 |
- Remove screws (70) and base (71) .
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| Illustration 27 | g01179677 |
- Remove O-ring seal (72) from base (71) .
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| Illustration 28 | g01179678 |
- Remove plate (73) from shell assembly (74). Remove O-ring seals (75) from plate (73) .
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| Illustration 29 | g01180740 |
- Remove bolts (76) and sight gauge (77) .
