The supporting wheels carry all the weight of the excavator and are responsible for the driving function of the excavator. There are two main failure modes, one is oil leakage and the other is wear.
If the travel mechanism of the excavator shows obvious wear in the early stage, stop the operation immediately and check the overlap between the center of the guide wheel, the supporting wheel, the supporting wheel, the driving wheel and the longitudinal center line of the walking frame; whether there is eccentric wear.
In order to prolong the service life, the front and rear rollers can be used for a period of time and exchange with the support rollers in other positions. The excavator can be directly interchanged. The bulldozer must maintain the original position of the single and double rollers on the walking frame. ; The two front and rear support wheels are most easily damaged.
The oil leakage of the support wheel is a problem that almost all excavator masters have encountered. Many people ignore it and replace it when it is polished. After the oil leak, the maintenance is basically replaced with a new one.