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Pump maintenance and maintenance
1 ensure that the pump is clean and prevent the impurities from entering the pump.
2 keep the oil level.
3. Improper storage, water or other volatile substances into the pump and affect the ultimate vacuum, can purify the gas ballast valve open, to observe the ultimate vacuum pick-up situation, a few hours is invalid, should replace the pump oil, if necessary, can be replaced again.
Oil method: first to open the pump running about half an hour, so that the oil thinning, stop the pump drain the oil from the oil hole, and then open the inlet running for 10 to 20 seconds. Here from the suction mouth slowly adding a small amount of cleaning pump oil. To replace the oil pump cavity to memory. If it's dirty oil, which can be repeated.
4 can not be mixed with diesel oil, gasoline and other saturated vapor pressure of the larger oil, so as not to reduce the ultimate vacuum. There are metal debris, sand mud or other harmful substances must be cleaned, such as gasoline and other scrub, dry operation before assembly, should not be soaked with gasoline.
5 if the pump is to be open for cleaning or maintenance, disassembly steps must be taken to avoid mechanical damage.