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Chery A15 Maintenance Manual 3. Fault Diagnosis and Troubleshooting (1). Check tire pressure and inflate as required in case of low pressure. (2). Check oil pipe connections of steering hydraulic system, and tighten them if leakage is found; check oil pipes, and replace damaged, distorted or cracked ones. Adjust pretightening force of rack convex piece or replace steering gear rack if necessary. (3). Check steering gear rack and the turning condition at the center wheel position, and check the rack bent and the adjustment of rack convex piece in case of excessive turning torque. Adjust pretightening force of rack convex piece or replace steering gear rack if necessary. (4). Check steering control valve to see if there is any blockage or bad returning, and replace the steering control valve when necessary. (5). Disassemble and inspect hydraulic cylinder, and replace damaged parts. (6). Make adjustments on ball pin at each connection of steering transmission mechanism to insure smooth operation. (II). Steering Wheel Vibration 1. Symptom Steering wheel vibrates during operation when the engine is working, especially at the extreme positions.
2. Possible Causes (1). Steering oil pump belt skids. (2). Too low oil tank level. (3). Air enters steering hydraulic circuit. (4). Insufficient steering oil pump output pressure. (5). Blocked pressure regulator piston in steering oil pump. 3. Fault Diagnosis and Troubleshooting (1). Check steering oil pump transmission belt to see if there is any skidding or damage, and tighten or replace the belt when necessary. (2). Check oil tank level for consistency, and add steering oil as required. (3). Check all pipe joints in steering hydraulic system and eliminate any leakage |