The operation weight is one of the three important parameters of excavator (engine power, bucket capacity and operating weight).
The operation weight determines the level of the excavator and determines the upper limit of the excavator's digging force.
Excavation force is less than m; working weight
M: adhesion coefficient between ground and track
If the digging force exceeds this limit, the excavator will skid and be pulled forward in the case of backhoe. This is very dangerous. In the case of a positive shovel, the excavator will skid back.