Methods to Solve Excavator Steering Failure

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As heavy-duty excavators, excavators often encounter various failures during construction, among which steering failure is a common one. After years of practice, Aprilparts maintenance personnel have accumulated some methods for solving excavator steering failures. These methods will be introduced in detail below.

blog-Methods to Solve Excavator Steering Failure

As a professional parts supplier with rich parts supply experience and a professional technical team, Aprilparts can provide you with one-stop construction machinery parts procurement services to ensure the normal operation of your excavators and other construction machinery.

1. Check the hydraulic oil circuit

The steering system of the excavator is mainly realized by the hydraulic system, so first check whether the hydraulic oil circuit is normal. If there are problems such as oil leakage or blockage in the hydraulic oil circuit, the normal operation of the steering system will be affected. When checking the hydraulic oil circuit, pay attention to whether the oil pipe is damaged and whether the pipe interface is loose, and clean the impurities in the oil circuit promptly.

2. Check the steering cylinder

The steering cylinder is the core component of the excavator steering system and is responsible for the movement of the steering wheels. If there are problems such as leakage or aging seals in the steering cylinder, the steering ability will be reduced or the steering will not be able to rotate normally. Therefore, check the steering cylinder for leaks and replace the seals in time.

The inspection method is: first eliminate the problem of seal failure: remove the steering cylinder and install it on another excavator with normal steering for testing. If the steering is good after modification, it means that there is no fault in the steering cylinder; if the steering is still slow after modification, it means that the fault is in the seal of the steering cylinder. Secondly, check whether the piston rod, cylinder liner, and other accessories are damaged or damaged.

3. Check the steering wheel

The wear of the steering wheel will also affect the steering effect of the excavator. The steering ability will be reduced if the steering wheel is severely worn. The steering ability will be reduced if the steering wheel is severely worn. Therefore, when solving the steering failure of the excavator, it is necessary to check the wear of the steering wheel and replace the severely worn steering wheel in time.

4. Check steering pump

The steering pump is the power source of the excavator steering system. If the steering pump fails, the steering ability will be weakened or completely lost. A key reason for steering pump failure is that the gap between the motor rotor and the side of the pump blade and the inner hole of the baffle is too large (normal gaps should be within 0.047mm, and the larger one should not exceed 0.100mm). Therefore, when solving the steering failure of the excavator, it is necessary to check the working status of the steering pump and clean the impurities in the steering pump.

5. Check the steering valve

The steering valve is the control device of the excavator steering system and is responsible for controlling the flow direction and flow rate of hydraulic oil. If the steering valve is faulty, the steering ability will be reduced or the steering valve will not be able to turn normally. Therefore, when solving the steering failure of the excavator, it is necessary to check the working status of the steering valve and replace the damaged steering valve in time.

6. Carry out system debugging

After inspecting and replacing relevant parts, the steering system also needs to be debugged to ensure that the steering ability returns to normal. During debugging, you can first conduct an idling test to observe whether the steering wheel can rotate flexibly; then conduct a load test to observe the steering effect of the steering wheel under load.

In short, solving the steering failure of the excavator requires careful consideration of the working status of the hydraulic oil circuit, steering cylinder, steering wheel, steering pump, steering valve, and other related components. As a professional parts supplier, Aprilparts has rich parts supply experience and a professional technical team and can provide you with one-stop construction machinery parts procurement services to ensure the normal operation of your excavators and other construction machinery.

If you are interested in our products, please feel free to contact us.

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