The maintenance of the hydraulic pump is mainly to manage the correct use of the pump and deal with the abnormal state in the operation in time, as well as the filtration of the working medium, and the elimination of minor faults, etc.; thereby improving the use of the hydraulic pump in time to ensure the normal operation of the pump, Extend pump life.

The main reasons for hydraulic pump damage are: wear, corrosion and fatigue damage of parts in the pump; manufacturing factors or accidents of the pump. Repair the damage of the pump due to normal or abnormal reasons, which is essentially a compensation for its deterioration. There are two basic means of hydraulic pump repair, namely repair and replacement.