Power Steering Pump for Heavy Truck

Mechanical abnormal sound
(1) This kind of abnormal sound is a mechanical friction sound, such as "clicking" or "creaking", which is more obvious and crisp
(2) The mechanism of such abnormal sound generation:
A. The steering column bearing is worn or interfered with;
B. Abnormal wear or poor lubrication of the tie rod and straight rod ball joints;
C. The kingpin bearing/bushing is worn or poorly lubricated;
D. Heavy load abnormal noise, the kingpin and plate spring sink to the limit after the vehicle is loaded, and friction abnormal noise occurs
(3) Treatment methods for such abnormal noises:
Jack up the front axle and check the mechanical connection parts one by one.

Critical parameters:

What is Power Steering Pump?

The power-Steering Pump pressurizes the hydraulic fluid that helps the driver turn the steering wheel. Signs of steering-pump failure include leaks, noises or decreased assistance while steering. The immediate loss of power assist is more likely a sign of a broken drive belt or the loss of steering fluid. Most vehicles employ this type of mechanical/ hydraulic power steering, but because their pumps rob power and efficiency even when the car isn’t turning, a small percentage of cars use an electric pump and many new vehicles now have electric power assist.