Some common problems of electric storage truck working device and hydraulic system

1. Reasons for vibration during hoisting: there is air in the hoisting cylinder, the hydraulic system leaks oil, the inner fork of the gantry and the bearing rollers of the gantry are too worn, and the tension of the two hoisting chains is uneven.

2. The promotion speed is too slow or cannot be promoted. Electric storage truck manufacturers analyze the reasons for the failure: insufficient fuel tank, blocked oil filter, failure of safety valve, high hydraulic oil temperature, too thin hydraulic oil, hydraulic pipeline leakage, hydraulic pump damage, etc. Abnormal noise caused by the falling of the door frame is generally due to shock resistance Damaged or aged rubber.

Maintenance method: firstly check the joints, gaskets and internal structure of each component for oil leakage, and replace if any; deflate the system, if it still cannot be ruled out, remove Solution Check the hoisting hydraulic cylinder and gear pump. If the safety valve cannot reach the working state, it needs to be repaired or replaced.

3. Lifting and bouncing, when the mast is raised, it bounces. Causes of failure: there is air in the lifting hydraulic cylinder; the performance of the gear pump is poor; the reversing valve of the pallet truck is not flexible; the oil is not clean. Maintenance method: Loosen the bleed screw plug on the lifting hydraulic cylinder first, release the air in the lifting cylinder; check the cleanliness of the oil. If the jumping still cannot be removed, check the operation of the reversing valve and gear pump. If the work is not good, it should be repaired or replaced directly.

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