What reason makes hydraulic motor of leakage, how to solve?

The original due to 1: rubber injection molding machine of the junior inside the shaft is too long, internal spline holes too shallow or internal spline, and the motor shaft spline fit is too tight, forced to produce motor bearing shell roof damage, after produce motor rotating difficulties, abnormal leakage.

Solution: remove the motor, check the motor shaft spline tool is a significant impression. If have indentation, which indicates that shoot rubber shaft in junior is too long. To shorten the molding machine according to the actual transmission shaft, the shaft spline in front to add a chamfer, can also be upset shoot rubber junior or 5 installation holes in front of the motor end mat thickness of gaskets, appropriate cushion the motor from shoot rubber junior distance. Modify the molding machine internal spline hole size straights and the motor drive shaft spline matches so far.

Inside the original by 2: rubber molding machine shot junior drive axis plane thrust bearing and cone bearing abrasion, resulting in abnormal motor hypercharged work, internal leakage.

Solution: change the molding machine transmission shaft destruction of plane thrust bearing and cone bearing of a class.