Hydraulic Power Steering Pump for Commercial Truck

Classification of power steering system:
Automotive steering systems can be divided into mechanical steering systems and power steering systems based on the energy sources involved in steering. The mechanical steering system relies on the steering force of the steering wheel manipulated by the driver to achieve wheel steering; The power steering system, under the control of the driver, relies on the liquid pressure generated by the vehicle engine or the driving force of the motor to achieve wheel steering. Therefore, the power steering system is also known as a steering power amplification device.

Critical parameters:

Cause of failure and troubleshooting:

The power pump of the steering gear does not absorb oil or the oil outlet pressure is too low.

Causes of failure:

1. The filter element is blocked, and the oil pipe is blocked due to the corrosion resistance of the rubber.

2. There is air leakage at the oil pipe joint, and air enters.

3. The parts of the booster pump are worn out, and the gap is too large, resulting in weak oil output.

4. The oil does not meet the requirements or has been used for too long, the viscosity is too high, and the sliding resistance of the blade is large.

5. The oil level in the oil storage tank is too low.

Remedy:

1. Clean the filter element with alcohol, replace the oil pipe, and add hydraulic oil to the specified position.

2. Check the tight connection parts to prevent air from entering.

3. Check and repair the booster pump, and replace severely worn parts.