The main causes of oil leakage in concrete mixer vehicles are:
1. pay attention to the role of padding. Auto static parts (such as the joint end, end cover, shell, gasket, flat enamel cover and liner) between parts plays a role in leakproof. If the data, manufacturing quality and equipment do not meet the technical standards, it will not be able to seal, leak proof, and even accidents. Such as the oil pan or valve cover, because the contact area is large and difficult to compaction, thus forming oil spills.
2. all types of fastening nuts on the car must be tightened by regular torque. Pressure is not too loose gasket leak tight; tight and lead screw around the metal bulge or threaded screw slide caused by oil spill. In addition, the oil pan drain plug if not tighten or loose back scattered, easy to form oil drain, and then attack the engine damage accident burnt axle “of.
3. timely change invalid oil seal. A lot of moving parts on the car (such as Baotou North rush truck parts, oil seals, O ring) will be improperly installed, the shaft neck and the oil seal blade are not concentric, sway and throw oil. Some oil seals have been used for too long and will lose their elasticity due to aging of the rubber. Leakage should be updated in time.
Preventive measures:
To prevent the one-way valve, vent valve block. As a result, the temperature in the box is increased, and the oil and gas is filled with the whole space, and the discharge is not brought in. The pressure in the box shell is increased, the oil consumption is increased, and the change cycle is shortened. After the engine ventilation system is blocked, the movement resistance of the piston is increased, and the oil consumption is increased. Because of the pressure difference between the inside and outside of the case, it often causes oil leakage in the seal. Therefore, it is necessary to check, dredge and clean the vehicle regularly.
Properly handle Baotou North rush heavy metal fittings, all kinds of oil pipe joint seal. The union nut of the car is often assembled and disassembled, easy to slip off, and loose, it will cause oil seepage. Replace the union nut, and use the grinding method to deal with its cone seal, so that the nut is pressed and sealed.
Baotou north to prevent heavy truck parts, wheels, throwing oil. Hub bearings and the cavity smooth grease too much, or its oil packaging inappropriate, bad quality and aging failure; frequent brake caused by the wheel temperature is too high; axle nut loose, etc, will cause the wheel to cast oil. Therefore, we should use the “cavity smoothing method” (that is, a fair amount of smoothness) to dredge the blowhole.