Typical faults and the way of their repair in steering boxes with hydraulic power assist steering.
Symptoms of faults:

• It is hard to steer left or right
• Steering-wheel turns itself hard while steering rights or left
• Turning the steering-wheel fast makes it difficult to steer
• Steering gear’s return movement is impeded
• It is difficult to steer the car when driving straight
• Whilst driving the steering-wheel has serious knocks
• Steering-wheel’s circuital vibrations
• There’s too big play on the steering-wheel
• The pump Works too loud
• Oil leaks