Motor steering wrong; oil level is too low, oil suction can not; Blade in the Rotor Slot with too tight; oil viscosity is too large, so that the Blade Movement is not flexible; 

The sand hole in the pump body and the bad contact between the deformed tooth and the pump body lead to the failure of the hydraulic component oil suction, no pressure failure. In view of this, we propose to adopt: 1. Change Phase, correct steering; 2. Check regularly to ensure the quantity of oil. Repair or replace blades; 4. Replace Machine Oil with low viscosity; 5. Replace Pump Body; 6. Repair the oil distribution plate contact surface these 6 methods to eliminate the fault.