Steering system is one of the most important systems on the truck. Only when it operates normally can it ensure the safe driving of the whole vehicle. Like other systems, the steering system will inevitably have some faults, and the heavy steering of the steering wheel is one of the most common faults. If it is not repaired in time, it will cause heavy physical consumption of the driver, difficult to adjust the steering angle in an emergency, and eventually lead to accidents. There are several reasons for heavy steering. Let’s analyze them one by one today.
Lack of hydraulic oil: in the truck’s power steering system, hydraulic oil is the medium for transmitting power. Once the system lacks hydraulic oil, it will interrupt power transmission and cause heavy steering. The booster pump itself is also lubricated by hydraulic oil. Lack of oil may also lead to its wear and damage.
Damage of booster pump: in the power steering system, the booster pump is the source of power. It is responsible for converting the power of the engine into hydraulic energy to drive the steering system. If it is worn and damaged, it will cause low hydraulic oil output pressure, difficult to drive the steering gear and heavy direction.
Damage to steering gear: the internal leakage damage of steering gear may also cause heavy direction, because it is responsible for converting the energy transmitted by hydraulic oil into mechanical energy in the system to drive the steering mechanism. Once the internal leakage occurs, the energy of hydraulic oil will be wasted, resulting in difficulty for the steering gear to drive the steering mechanism.
Filter element blockage: there is a filter element in the steering hydraulic system that is responsible for filtering hydraulic oil. If it is blocked, it will also cause heavy steering.
Lack of oil in the steering vertical shaft: heavy steering caused by this fault is very common. Generally, it is because the oil passage is blocked by low-quality grease, so that the butter can not be injected, resulting in dry grinding or even seizure of the vertical shaft. In this case, the pressure bearing will also be damaged quickly.
In fact, most of the causes of the above failures are maintenance problems, because there are two reasons for the damage of the power steering pump, one is the use of inferior hydraulic oil, the other is the failure to replace the hydraulic oil filter element as required, which will cause the wear and damage of the power steering pump. The steering shaft seizes, which is generally caused by the blockage of the oil passage caused by the use of low-quality grease. In addition, the filling frequency is too low, which worsens the problem. If you pay attention to these problems during normal maintenance, you can avoid these problems to a great extent.
It is essential to select good oil products to maintain the steering system within the specified time. Poor oil products seem cheap, but they are easy to cause some faults, and maintenance will cost more resources. The same is true for other truck systems. Blindly pursuing low prices in maintenance will often bring greater costs.
Expand product line UK ZF push commercial vehicle steering pump products