Correct disassembly method of gear oil pump
A. Remove the gear oil pump from the pump table: during maintenance, the pump can be removed from the pump table or the pump can be disassembled by removing the intermediate coupling without moving the pump and the connecting pipeline.
B. If necessary, remove the safety valve: If the gear oil pump is equipped with a safety valve, loosen the bolt connecting the safety valve to the pump cover or pump body, and then the safety valve can be removed.
C. Remove the back cover of the gear oil pump:
1. If there is a safety valve on the back cover. The back cover can be removed integrally with the safety valve;
2. Before removing the rear cover, mark the relative position of the pump cover and the pump body, remove the rear cover bolts, and remove the rear cover. Note: When removing the rear cover of the pump, the driven gear is usually connected to the gear shaft, and the rear cover should be avoided to face down to prevent the driven gear from slipping and causing personal injury or gear damage.
D. Removal of the back cover gasket When there is no new gasket and the old gasket is not damaged, the old gasket can still be used.
E. Remove the driven gear from the pin shaft
1. When the driven gear has not been removed from the pin shaft, check the degree of wear between the following components:-pin and bushing-driven gear and crescent ring-driven gear width and crescent ring the height of
2. If one of the above-mentioned parts is found to have signs of excessive wear, new spare parts must be replaced; if a small amount of wear is found on the shaft sleeve, it should also be replaced; proper shaft sleeve clearance.
F. Removal of drive wheel unit
1. Remove the drive unit components from the pump body:
2. When performing the second maintenance work, there is no need to remove the pump from the pump table or the connecting pipeline, just remove the intermediate coupling;
3. Remove the connecting bolts between the pump body and the bearing box;
4. If the pump not only has a casting leg, but also the bearing box leg bolts need to be removed; at this time, the drive unit can be taken out from the pump body as a whole; sometimes the drive unit is very heavy and requires lifting equipment to take it out.
