Maintenance Method of Automobile Hydraulic Power Steering System Fau Jan 26th, 2018   [viewed 91 times]

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The development of the car steering system from mechanical steering to hydraulic power steering, and then with the car speed changes and power x431 v scanner assisted hydraulic power steering and electronic power steering with speed. This paper will be the basic theoretical knowledge of hydraulic power steering, hydraulic parts of the common causes of failure analysis and maintenance methods to sort out and summarize.

1 hydraulic power steering system works
Hydraulic power steering is based on the mechanical steering increased steering oil tank, steering control valve, steering tubing, steering cylinder, steering carkeydeals pumps and other hydraulic power unit to overcome the steering system of mechanical steering sensitive and lightweight contradiction, while taking into account the steering Sensitive and lightweight. Hydraulic power steering structure and composition shown in Figure 1 below.

Start the engine, the steering booster pump will produce high-pressure steering fluid, when the driver needs to turn left or right, the control valve spool and valve relative position changes, the high-pressure steering fluid to the power cylinder L or R cavity , To cardiagtool promote the power cylinder piston moves, thus promoting the steering rod, steering knuckle arm, the wheel steering.

2 hydraulic power steering system failure reason analysis
2.1 car driving, turn heavy
Steering fluid is not enough; infiltration of air into the hydraulic circuit; booster pump drive belt is too loose, skidding; system connection or seal leak; system blockage of oil.
2.2 car steering, the steering system is noisy
Too little steering fluid leads to air infiltration during work; air infiltrates the hydraulic system; deposits appear in the hydraulic circuit causing clogging; hose connections loose or tubing ruptures.

 

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