How to replace the floating oil seal of the excavator walking motor

The machine size of excavators is generally around 20 tons, and the weight of medium to large tracked excavators also brings a lot of inertia to the machine. The process of starting and stopping a machine due to high inertia can also have a significant impact on the hydraulic system, often causing problems with the floating oil seal between the reducer and motor, resulting in leakage issues.

How to replace the excavator walking motor can be said to be a problem. Simply put, check whether it is a live pin or a dead pin, then lift the track down, drain the oil from the gear, and then remove one turn of the screw on the outer cover. Use a 19 hex wrench inside, some use a T90 wrench, or a pin extractor. After disassembling the walking reducer here, there is a floating oil seal between the reducer and the motor. If possible, choose a professional after-sales service to replace it because the floating oil seal is more expensive.