(1) Remove the rotary vane vacuum pump from the vacuum system, raise the end of the chassis motor, open the oil drain plug, turn the vacuum pump and hold the exhaust port so that all the oil in the cavity is discharged from the drain port, and then proceed from At the air port, add 100-500ml of new oil and rotate it for 5-10 rotations. Clean the inside and operate 3-5 times. After the special oil is drained, install the oil drain plug and put the pump flat. New oil is added to the air inlet and the filler hole, and the oil change is completed.
(2) When changing the oil, it is not advisable to start the motor for a long time so as to prevent the exhaust valve piece from jumping violently and fatigue.
(3) It is forbidden to use non-demolition cleaning of the pump with kerosene, gasoline and alcohol.
Note: Rotary vane vacuum pump oil change the best oil temperature after the increase.
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