1, each end of the work to open the bottom valve water separator vacuum switch, draining them. Clear vacuum suction substances. Vacuum cleaning water separator to ensure the smooth flow of the vacuum line. 2, the vacuum pump should stop once a month to check the oil pollution in the pump, and if the situation inside the vacuum pump oil has been contaminated, it should be timely oil changes. Change the oil pump must be unloaded before being transferred for 15 minutes. Let the oil heated rotary pump stops open the slop oil plug exhausted. With some new oil after cleaning or washing oil pump to inject new vacuum pump oil. (New oil for 10 # gasoline or oil) pump maintenance and repair manual execution can refer to a vacuum pump. 3, always check the oil level worm reducer. If the oil level is lower than 1/2 the height of the oil window should promptly add 30 # machine oil. 

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