What to do if the pressure of hydraulic transmission system is insufficient

The main reasons for the loss and insufficiency of system pressure in the hydraulic transmission system are as follows:

The power of the hydraulic pump is small, the rotating speed is not up to standard, and the steering direction of the hydraulic pump is incorrect;
The valve core is jammed, resulting in unloading;
The oil temperature exceeds the specified range, the oil absorption is not smooth, and the liquid level does not meet the specified standard;
Leakage and component damage caused by improper sealing;
After opening the overflow valve, the damping hole is blocked, the spring cannot play its due role, and the valve core cannot be closed.

Treatment method:

It is necessary to detect the power source of the hydraulic transmission system and thoroughly clean the cooling system/oil suction pipe and damping hole;
Replace the spring and add hydraulic oil;
Ensure the effective operation of the valve core in the valve body, repair or replace the faulty components;
Check the connection and sealing degree of the system pipes, valves, pumps and other parts, replace the sealing parts, and enhance the sealing effect;
Repair and adjust the system housing and valve core.

Source: Hydraulic learning