Routine Maintenance
The hydraulic system should be kept clean and at regular intervals the reservoir fluid level should be checked and fluid added when required.If the system contains dirt, flush it as detailed later in this section. If it is exceptionally dirty, both the pump and the gear must be completely disassembled and cleaned.
All tubes, hoses, and fittings should be inspected for leakage at regular intervals. Fittings must be tight. Make sure the clips, clamps and supporting tubes and hoses are in place and properly secured. Inspect the hoses with the wheels in the straight-ahead position, then turn the wheels fully to the left and right, while observing the movement of the hoses. Correct any hose contact with other parts of the vehicle that could cause chafing or wear. Power steering hoses and lines must not be twisted, kinked or tightly bent. The hoses should be curved around enough to absorb movement during vehicle operation.
Air in the system will cause spongy action and noisy operation. When a hose is disconnected or when fluid is lost, for any reason, the system must be bled after refilling.