In the process of driving, trucks often need to change the driving direction to let the vehicle drive to the destination according to the wishes of the driver. The mechanism that changes the driving direction of the vehicle is called the steering system, which affects the driving safety of the vehicle. The manufacturer of Baotou North Benz parts suggested that we find the steering wheel becomes heavier and the steering sensitivity decreases during daily driving. It is likely that there is a problem with the steering power system in the steering mechanism.

What is the power steering system

Let's understand what the steering powertrain is. The steering power of Baotou North Benz accessories can help the driver adjust the direction of the car and reduce the strength of the driver's impact on the steering wheel. At present, the common power steering system on trucks is mechanical hydraulic power system, which is mainly composed of hydraulic pump, oil pipe, pressure fluid control valve, V-belt, oil tank, etc. This auxiliary mode is to convert part of the engine power output into hydraulic pump pressure, and apply auxiliary power to the steering system to steer the tires.

Baotou North Benz spare parts, because the mechanical hydraulic power needs to consume the engine power greatly no matter whether the vehicle turns or not, people have improved on the basis of the mechanical hydraulic power and developed an energy-saving electronic hydraulic power steering system.

The steering oil pump of the system is not directly driven by the engine, but is driven by the motor. An electronic control unit is installed on the basis of the previous one, which can calculate the ideal steering auxiliary force according to the driving speed, steering angle and other signals of the vehicle. Now more and more heavy trucks begin to assemble electro-hydraulic power steering system.

When a part of the power assist system fails, the comfort and flexibility of steering operation will be lost, which will increase the physical consumption of the driver. In case of danger, the direction cannot be adjusted in time.

The power steering system has problems for these reasons

① Damaged power steering pump: The power steering pump is the power source of the power steering system, which generates high pressure in the steering system and drives the steering gear. If the booster pump fails to provide normal working pressure for the system, it will be difficult for the steering wheel to rotate.

② Insufficient hydraulic oil: if the power steering pump is compared with the heart, the hydraulic oil is blood to maintain the normal operation of the whole system. The lack of hydraulic oil will not only lead to difficult steering, but also make other parts of the system unable to achieve sufficient lubrication effect, with abnormal noise and wear.

③ Deterioration of hydraulic oil or impurities in the oil: the hydraulic oil has a service life. If the hydraulic oil is not replaced for a long time, it is easy to deteriorate and increase the oil viscosity. Then the oil flow in the pipe is slow, which affects the working performance of the system, affects the efficiency of the power steering, and even damages the power steering pump.

④ There is air in the hydraulic pipeline: the oil tank is short of oil, the oil seal is poor or the operation is incorrect when replacing the hydraulic oil, which will lead to air entering the power assist system. If there is air in the hydraulic oil, the transmission of torque will be unstable. For example, when turning, the power of the power steering system is interrupted, and the steering wheel is not continuous, so there is no air in the power steering device.

⑤ Plugged filter element: the filter element will be blocked if it is not maintained or replaced for a long time. When the filter element is blocked, the hydraulic oil circulation is not smooth, the return oil pressure increases and the direction is heavy, resulting in oil leakage of the steering input oil seal and other faults.

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