What is the reason why the gear insulation pump is difficult to start?

What is the difficulty in starting the gear insulation pump? 1. Before the gear insulation pump starts, the pump is not filled with the medium or the pump is not started for a long time. The method is: the pump is sucked into the room and filled with the medium, and the pump shaft is turned to the gear. what reason
1. Before the gear heat preservation pump starts, the pump is not filled with medium or the pump is not started for a long time. Exclusion method: the pump is filled into the room and filled with the medium, and the pump shaft is rotated.
2, the medium in the pump is solidified and removed: heat pump to reduce the viscosity of the medium
3, rubber stator and rotor with interference over-exclusion method: replace the appropriate parts of the interference
4, Botaibang shaft seal packing pressure is too tight to remove the method: the heat pump adjusts the packing gland elastic
5, the input voltage is too low to eliminate the method: adjust the voltage after the normal start
6, the starting torque is too large

Remedy: Check and adjust the outlet valve or turn the pump shaft by hand or tool or increase the power of the power source















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