Mini excavators are generally used in agriculture or landscaping. Speed determines the power of their operation. The driver will occasionally encounter shortcomings such as low speed tumbling during operation.
1. The pressure of the hydraulic steering system is too low, because the pressure reducing valve spring force is weakened;
2. The outer surface of the center rotary joint shell and sealing ring is severely worn;
3. The low pressure pipe joint is loose or the oil pipe is cracked;
4. The piston cylinder seal ring and the inner wall of the cylinder are too large or the seal ring and gasket are damaged;
5. Steering pump leakage;
6. The hydraulic oil is contaminated;
7. There is air in hydraulic steering system.
8. Steering gear check valve is not closed;
According to experience, the power of the hydraulic steering system may decrease. The system pressure is too low, the oil circuit is not dredged, or there is air in the system.
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