Excavator three oil one water refers to
Hydraulic oil, oil, gear oil, or diesel water is antifreeze
Talking about diesel, oil, hydraulic oil and cooling water
According to the concept of construction machinery, good maintenance of FOWA can reduce the trouble of excavator about 70%F: fuel oilO: engine oilW: cooling waterA: airGeneral excavator 70% of the fault is due to poor maintenance
