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Main hydraulic power steering operating faults: 1 - Steering stiff when turning right and left; 2 - Steering stiff only when turning left or right; 3 - Steering stiff when the wheel is turned quickly; 4 - When steering, heavy jolts are felt at the wheel; 5 - Torsional vibration of the steering wheel; 1 YES NO YES NO YES NO YES NO YES STEERING STIFF WHEN TURNING RIGHT AND LEFT Insufficient oil in system Open tank and check oil level. With engine running, top Air in hydraulic circuit Check suction tube and pump shaft seal for leaks. Bleed Pump regulating valve jammed or blocked Replace the power steering pump Insufficient oil pump delivery Overhaul or replace pump. Universal joint not serviceable Make joint free to slide by moving it to and fro several 6 - Excessive play at the steering wheel; 7 - Loss of oil; 8 - Insufficient pressure in the circuit; 9 - The vehicle tends to move sidewards; 10 - Hydraulic power steering pilot light always lighted. NO Internal power steering failure YES Replace the power steering unit 6 STEERING GEAR D AILY E URO 4 |