Removal Procedure
| 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 Tools and Shop Products Guide" 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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At operating temperature, the hydraulic oil is hot and under pressure. Hot oils can cause burns. To prevent possible personal injury, release the pressure in the implement hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed. Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch. |
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| NOTICE |
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Keep all parts clean from contaminants. Contamination of the hydraulic system with foreign material will reduce the service life of the hydraulic system components. To prevent contaminants from entering the hydraulic system, always plug or cap the lines, fittings, or hoses as they are disconnected. Cover any disassembled components and clean them properly before assembly. Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination. |
Note: A hydraulic oil sample should be obtained before any maintenance is performed in order to establish the system contaminant level. Refer to Fluid Analysis Laboratory Guide, SEBF3116, "Obtaining an Oil Sample for S·O·S Analysis" for the correct sampling procedure. Refer to Operation and Maintenance Manual, "Sampling Interval and Location of Sampling Valve" for the correct location.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes.
- Pull floormat (1) away from cover (2) in order to remove the floorplate and the cover.
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| Illustration 1 | g00754568 |
- Remove four screws (3) from floorplate (4) .
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| Illustration 2 | g00778686 |
- Remove floorplate (4) .
- Remove screw (5) and cover (2) .
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| Illustration 3 | g00778691 |
- Remove two screws (6) and remove heater duct (7) .
- Cut tie straps (8) and disconnect electrical connector (9) .
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| Illustration 4 | g00778692 |
- Remove four screws (10) and lay bracket (11) for the parking brake out of the way.
- Disconnect two hoses (12) from the bank valve.
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| Illustration 5 | g00778694 |
Bottom view of the bank valve | |
- Disconnect the electrical connector from solenoid (13) .
- Disconnect six hoses (14) from the bank valve.
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| Illustration 6 | g00778699 |
Top view of the bank valve | |
- Disconnect electrical connector (15) from the solenoid.
- Disconnect two lines (16) from the bank valve.
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| Illustration 7 | g00778701 |
Bottom view of the bank valve | |
- Disconnect two lines (16) from the hydraulic cylinders for the loader. Reposition the lines in order to remove the bank valve.
- Disconnect two hydraulic hoses (17) from the bank valve.
- Disconnect hose (18) from the front of the bank valve.
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| Illustration 8 | g00778704 |
The hoses are located on the front of the bank valve. | |
- Disconnect hose (19) from the front of the bank valve.
- Disconnect three hoses (20) from the rear of the bank valve.
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| Illustration 9 | g00778705 |
The hoses are located on the rear of the bank valve. | |
- Disconnect seven lines (21) from the bank valve.
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| Illustration 10 | g00778706 |
Top view of the hydraulic lines group | |
- Attach a suitable lifting device (22) to the bank valve.
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| Illustration 11 | g00778708 |
- Remove three bolts and washers (23) in order to detach the bank valve from the frame.
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| Illustration 12 | g00778709 |
- Remove the bank valve. The weight of the bank valve is 30 kg (66 lb).