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Some reason and treatment methods of Torgovnik Torgovnik hydraulic pump shaft seal tipped

Reason:
1, the use of reverse gear pump is converted into a positive and reverse gear pump
Oil seal cavity channel 2, before blocking: such as drainage channel blockage, can not leak the oil chamber into the oil pump and return to the road, causing the front cavity seal of trapped oil pressure, the maximum pressure of the oil seal oil seal out by turning
3, the seal in the assembly, the sealing lip off spring
Treatment method:
1 maintenance must be clear that the pump is positive and negative
2 should clear the drain passage
The 3 seal, to prevent the sealing lip off spring