NEWS

The hydraulic motor speed drop may be caused by the following reasons:

1. The pump is damaged, the pump body is overheated and produces dry sound.

2. The safety valve opens, the valve sounds or hisses, local overheating.

3. Control valve closed or oil return system is not smooth, and local overheating.

4. Excessive leakage of hydraulic motor, excessive leakage of single oil drain pipe and high oil level.

5. Excessive leakage of the distribution valve, the valve chamber is hot, and it feels very hot when touched by hand.

Treatment methods for the above points: replace the pump and study the cause of its loss, check the valve, if it is intact, check the system pressure, check and correct it.

For the fourth point can have the following four points to deal:

a. Check the viscosity and working temperature of the oil.

B. Check the sealing condition of the cylinder piston.

c. Check the condition of the sphere.

d. Check the condition between the connecting rod and the surface of the eccentric wheel and the sealing condition of the distribution valve.