Gear pump maintenance techniques ①, due to a sudden power outage, resulting in system pressure fluctuations, the emergence of negative pressure discharge system, the bubbles dissolved in liquid escaping the presence of gas in the gear pump or pipe. The treatment is to purge the gas. ②, high pressure liquid column due to a sudden power outage, the impact of the gear pump outlet check valve plate. The treatment method is to rebuild the disposition of piping and pipe fittings of the irrational discharge system of the gear oil pump. ③, the outlet pipe valve is closed too fast. The method is to slowly close the valve. ④, shut down: cut off the power. The HTF gear oil pump venting, cleaning and should regularly rotate the impeller 180 degrees to prevent shaft deformation until the oil gear pump is completely cooled so far. ⑤, the transmission medium to the thermal oil gear pump cover and bearing the heat from the gear pump cover and bearing surface cooling, so that the bearing temperature to adapt to the shaft sealing performance temperature. Therefore, the choice of HTF gear pump installation location, to make the gear pump cover and bearing seat of the heat to facilitate diffusion, does not appear any heat storage.
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