Elimination: 1. Remove the switch, take out the packing, and use oil-resistant rubber sheets to make two round pads with an outer diameter of 1 mm larger than the switch housing hole and an inner diameter of 1.50 mm larger than the handle screw, and clamp the rubber pad in the middle of the steel pad. Then put them on the handle screw together and tighten the gland device. 2. Wrap graphite and asbestos rope between the two steel pads and fill them up, tighten the gland device.
2. Oil leakage from the oil tank drain faucet: The reason is that the steel ball rust in the faucet may fail.
Exclusion: Replace the steel ball (the diameter is 15 mm, and the steel ball in the bearing with an inner diameter of 80 mm can be used as a substitute).
3. Oil leakage from the tubing bell mouth: the reason is that the tubing bell mouth cone and the bell mouth seat are not well sealed.
Exclusion: 1. Screw the end of the horn first when screwing the connector. 2. After grinding the bell mouth joint, apply sealant on the cone surface, then tighten or saw off the bell mouth, and re-expand 1 piece with an expander.
Fourth, the hollow screw joint leaks oil: the reason is 1. The end surface of the oil pipe joint and the washer are not flat; 2. The screw hole on the shell is uneven.