Japanese Vehicle Hydraulic Power Steering Pump

Classification of power steering pumps
1. According to the vehicle type, it can be divided into: Steering Pump for commercial vehicles and steering pump for passenger vehicles.
2. From the structural form, it can be divided into: vane type steering pump, gear type Power Steering Pump, plunger type steering pump; Double cropping vane type steering pumps are widely used in various vehicle types due to their small size, low noise, and high volumetric efficiency.
3. According to the driving form, it can be divided into: gear driven steering pump, pulley driven steering pump, cross slide key (spline) type steering pump; The pulley driven steering pump is mainly used for driving passenger vehicles with low torque, and is mounted on commercial vehicles wheel drive type and cross slide key type are more common.
 

Critical parameters:

Cause of failure and troubleshooting:

The oil level of the oil storage tank drops rapidly, and the hydraulic oil leakage is serious.

Causes of failure:

1. The connecting pipes of each part are damaged, the joints are not tight, and there is leakage.

2. The oil storage tank is damaged.

3. Steering gear oil seal is damaged.

4. The oil seal of the booster pump is damaged, and the hydraulic oil flows into the engine oil pan.

Remedy:

1. Check all connecting oil pipes and joints.

2. Replace the oil storage tank.

3. Disassemble the steering gear and replace the oil seal.

4. Overhaul the booster pump and replace the oil seal.

When such a fault is found, stop the machine in time to prevent the hydraulic oil from being mixed into the engine oil, causing the oil to deteriorate and causing the engine crankshaft to burn out.