Notes of vacuum pumps in oil purification machine

(1) Often note oil level. 　　

(2) The pump start and slowly open the valve again. 　　

(3) Often note whether the pump operation correctly, there is no special sound, the motor is running. 　

(4) Attention to the cooling water is interrupted.

(5) Note pump temperature not exceeding 40 ° c

(6) If after parking vane vacuum pump temperature to spin down to 5 ℃ below, the cold water in pump must be removed