1. The fuel tank is low --- how to solve it: refuel.
2. The adjustment pressure of the relief valve in the oil inlet pipeline is too low - how to solve it: increase the adjustment pressure of the relief valve.
3. The voltage is too low, and the motor speed decreases --- how to solve it: deal with the voltage problem.
4. The throttle valve in the oil return line is improperly adjusted, and the back pressure caused by throttling is too large -- how to solve it: adjust the throttle valve opening to reduce the throttling effect.
5. The oil pump has internal leakage---how to solve it: handle or replace the oil pump
6. The actual load becomes larger -- how to solve it: check whether the load has changed, and remove the additional load.
7. The oil inlet or oil return pipeline is too thin -- how to solve it: replace the pipeline with a larger diameter.
8. The hydraulic cylinder has internal leakage---how to solve it: overhaul or replace the hydraulic pump.
9. There is obvious leakage in the pipeline - how to solve it: deal with the pipeline.
