Cargo lifter pump excessive leakage, the reason is the gap is too large, resulting in poor seal. Variable institutions with the bad check valve sealing surface, the bearing surface of the pump and oil pan with trachoma or cracks and the like. It can check the hydraulic oil in the pump body mixed foreign matter, did not determine the damaged parts of the pump. Troubleshooting should be based on different reasons. Check valve sealing surface spotting again, grinding oil pan and cylinder end face,replacement parts trachoma or cracks. When the plunger and the plunger hole badly worn or damaged, it should be re-bore copper plating, grinding and other processing repair. If the piston variable displacement mechanism severe wear, replace the piston, piston and piston bore to ensure that the gap is 0.02 mm.

3、升降貨梯傾斜盤實(shí)際傾角太小