XKBF-00895 Relief valve loader accessories Komatsu excavator accessories Main relief valve hydraulic pump

Judgment of common faults of excavator

    Common fault 1: Blue smoke from the engine

First of all, determine whether the engine oil consumption is too large in the recent period of time, if so, it may be because the engine burns oil. 2. If the oil consumption does not increase, check the supercharger.

Recommendation: Engine blue smoke, generally due to cylinder liner and piston ring wear with excessive clearance or supercharger seal wear axial movement is too large, please contact customer service representative.

   Common fault 2: High oil consumption.

Symptom: 1. Check for leakage and black smoke. 2. If the status is normal, check all air inlet pipes for dust accumulation. 3. If there is no dust accumulation, please prepare a copy of the oil consumption meter (this form can be obtained from the customer service representative).

Suggestion: 1. If the dust accumulation of the cylinder inlet pipe is found, please send it to the workshop for maintenance. The machine is in normal condition, and if it exceeds the standard, it needs to be investigated, analyzed and repaired.

    Common fault 3: Engine hot car difficult to start

Phenomenon: 1. The difficulty of starting the hot car is mainly caused by the wear of the fuel pump plunger. 2. In the EFI engine, it is mainly displayed on the oil nozzle.

Suggestion: 1. The fault in the direct injection motor is mainly caused by the oil pump plunger being worn by impurities and water in the fuel, especially water. 2. In the EFI engine is the same principle, the fault phenomenon is the same, the fault judgment is to compare the cold car start time and hot car start time.