1.Oil does not go up, Oil go up but not stable
1)Oil level in the tank is too low. Refill oil to the regulated oil level.2)Oil viscosity is too large. Change and use adaptable viscosity oil.
3)The filter is blocked. Clean or change the filter.
4)The control valve is not closed. Clean the control valve or change oil.
2.Oil does not go down, or go down but not stable
1)The control valve is polluted and blocked. Clean the valve or change the oil.2)Throttle valve is blocked. Adjust the valve.
3.Oil Pressure is not maintained or goes down slowly
1)The single valve is polluted. The valve is not seated well. Clean the single valve or change the seal and oil.2)The electric valve and manual valve are polluted and not seated well. Clean the two valves or change the seals and oil.
Attention: Please change the hydraulic oil for one time after using within the first month. Replace it every 1000 hours or semiannually, or just filter it.
