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At operating temperature, the hydraulic tank is hot and under pressure. Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin. Remove the filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. Remove the filler cap slowly in order to relieve pressure. |
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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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates. |
Note: Turn off the engine. Apply the foot brake several times in order to relieve the pressure in the brake system.
- Pull the hood release lever in the cab. Open the engine hood and engage the hood latch.
- Put identification marks on all lines, hoses, wires and tubes for installation purposes. Plug all lines, hoses and tubes. This helps prevent fluid loss and contamination of the oil system.
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Illustration 1 g00442603 - Remove seven bolts (1) and hydraulic tank cover (2) from the machine.
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Illustration 2 g00468044 - Remove two reusable straps (3) from the hydraulic hoses.
- Loosen retaining nut (4) that secures hydraulic hose (5) to check and pressure reducing valve (6).
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Illustration 3 g00468612 - Loosen retaining nut (7) that secures hydraulic hose (8) to the check valve. Loosen retaining nut (9) that secures hydraulic hose (10) to the check valve. Place hydraulic hoses aside.
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Illustration 4 g00469132 - Loosen retaining nut (11) that secures hydraulic hose (12) to the check valve. Loosen retaining nut (13) that secures hydraulic hose (14) to the check valve. Place hydraulic hoses aside.
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Illustration 5 g00469208 - Loosen retaining nut (15) that secures hydraulic hose (16) to the check valve. Remove electrical connectors (17) from the clip. Disconnect the electrical connectors.
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Illustration 6 g00469209 - Remove two bolts (18), the washers, and the nuts that secure check and pressure reducing valve (6) to the bracket on the chassis. Remove the check valve from the machine through the top access hole in the chassis.
