Customized Power Steering Pump

What is Power Steering Pump?

As the power source of the steering of the car, the power Steering Pump is the "heart" part of the Steering System. In developed countries, the installation rate of power steering for large and small cars is close to 100%. At present, many domestic models have begun to use power steering. Therefore, in the process of promoting and using the steering pump, it is necessary to understand and master its performance and principle in order to achieve correct use and maintenance.

Poor alignment of steering wheel:

1. Fault symptoms. The steering wheel cannot automatically return to the neutral driving position (straight driving position) when the driver releases his hand after the vehicle has completed steering, or the alignment is not smooth.

2. Fault cause. Air infiltration in the same hydraulic path; The oil return pipeline is deformed and blocked; Steering control valve or power cylinder piston jammed; Poor centering of steering control valve; Improper adjustment of steering gear rack top block; Steering gear rack is bent and deformed; The connection of the steering transmission mechanism is too tight; Improper wheel alignment.

3. Fault diagnosis.

(a) Perform an exhaust operation on the hydraulic system, and add sufficient steering fluid as required after the exhaust.

(b) Check the ball joint pins at each connection of the steering transmission mechanism. If they are too tight, it indicates that the cause of the fault is here. Adjust them to ensure their smooth movement; If normal, proceed to the next step of testing.

(c) Check the rotation of the steering gear rack mechanism at the wheel alignment position and other positions of the wheel. If the rotational torque is too large, the cause of the fault is here. Check the rack bending and the adjustment of the rack top block; If normal, proceed to the next step of testing.

(d) Check whether the steering control valve is jammed and has a poor valve in alignment; If normal, proceed to the next step of testing.

If necessary, adjust the clamping force of the rack top block or replace the steering gear rack machine. If the problem exists, the cause of the fault is here, and the steering control should be replaced

(e) Disassemble and inspect the power cylinder and replace the damaged parts. At this time, if the old and bad steering wheel faults have not been eliminated, check and adjust the front wheel alignment.