The running deviation of excavator often occurs in the old machine, poor working environment, large potholes and slopes, etc.
Excavator model: Hitachi zx870h-3 excavator
Causes of Hitachi excavator traveling deviation:
1. there is a problem with the hydraulic circuit or valve
2. oil circuit or valve is blocked
3. the hydraulic pump pressure is not appropriate
4. travel motor failure
5. the driving force provided by the left and right travel motors is quite different
6. the underframe itself has problems
7. poor parallelism of left and right track beams
Inspection method for Hitachi excavator traveling deviation fault:
1. check the traveling pump
2. the two groups of pumps will deviate if their flow is different
3. check the pressure of the hydraulic pump to see if the pressure of the two groups of pumps is the same. If the pressure is different, walking will deviate.
