This fault is easy to see from the outside. Oil leakage should also be identified with fuel injection. These should be taken measures to prevent. It is not good to waste oil in vain, polluting the site and the environment, not only unsightly, but also affecting the health of operators. The oil vapor discharged from the mechanical pump should also be led away from the work site by a thin rubber tube from the pump outlet, so as to avoid polluting the environment in case of oil injection. For some pump oils, some people have studied and pointed out the toxicity of these substances. We should pay attention to protection. This aspect should also be one of the responsibilities of sub-maintenance workers.

The oil leakage parts of mechanical vacuum pumps are mostly in shaft seals, oil drain holes, oil windows, oil tanks, etc. The main reason is that the wear time is too long, the seals are damaged or the assembly is poor - the force is uneven when the screws are not pressed and tightened - caused by . When an oil leak is found somewhere, maintenance workers and operators should take immediate measures, and should not be accustomed to thinking that "minor problems" are innocuous and leave it alone. Otherwise, the pump will leak or be damaged in the long run.

Oil leakage is not difficult to solve, it is only necessary to discharge the pump oil first, disassemble the leakage and replace the seal. The solution to the leakage of the shaft seal has been introduced before. For the leakage of the oil drain hole, lead plate, rubber cardboard, oil-resistant vacuum rubber plate, etc. can be used to make a pad and replace it. The leakage of the box itself is rare, and it is mostly caused by trachoma. It can be sealed with a sealing agent such as epoxy resin.