How to change the axle room type of Shifeng Fengchi 1800 dump truck?

Shifengfengchi 1800 Dump Truck rear axle housing replacement needs professional tools. The main gear universal joint fork can be replaced and disassembled in 4S, and the sealing surface can be polished evenly with 2000 mesh waste metallographic sandpaper. The surface should be coated with gear oil, and the mating surface of the main gear oil seal of the rear axle should be polished with 2000 mesh waste metallographic sandpaper. There should be no burr. Apply sealant to the groove of the new oil seal housing, grind the mating surface of the main gear oil seal of the rear axle with gear oil, and then knock it in with a square pad.

Shifeng Fengchi 1800 Dump Truck Rear Axle House Replacement Process

It is best to tap the main landing gear universal joint with a special sleeve against the groove on the oil seal, clamp the main landing gear universal joint fork with a special disassembly tool, and tighten the lock nut with a torque wrench. After installation, the automobile oil seal of transmission shaft is one of the accessories used more in automobile maintenance. In the free state, the inner diameter of the oil seal lip is smaller than the shaft diameter, and there is a certain amount of interference. After installation, the interference pressure of the oil seal cutting edge and the contraction force of the self-tightening spring produce certain radial pressure on the rotating shaft.

When working, the lip of the oil seal forms a sealing contact ring with a width of 0.25 ~ 0.5 mm under the action of radial pressure. Under the action of lubricating oil pressure, an extremely thin oil film is formed between the oil seal cutting edge and the rotating shaft. Under the action of oil surface tension, the oil film forms a crescent-shaped surface on the outer edge of the rotating shaft and the cutting edge of the oil seal to prevent oil from overflowing, which is the main reason for oil leakage.