① filter placed smooth, the inlet connected to the lower part of the tank put theoil port, the oil tank connected to the upper tank
② check all the tightness of the vacuum oil purifier is loose off phenomenon;test whether the vacuum pump vacuum pump oil;
③ check with the outside world connected to the valve is closed;
④ connect the power and ground, check the pump, thedirection of rotation of the vacuum pump is correct; machine distributioncabinets and pumps, vacuum pumps, heater wiring should be checked at thejunction to ensure a solid connection, reliable insulation.