Inspection of High Temperature Blocking and Black Smoke Fault of Extended Arm Excavator Engine
1. Check whether the hydraulic pilot pressure of excavator is in the normal range.
2. In the normal range, then continue to check the pressure value of the main pump of excavator to see if there is any problem with the main pump.
3. The normal pressure value of the main pump indicates that the main pump has no problem.
4. Because the excavator works in a high temperature pot, they have to clean the water tank, check the wear and tear of the fan belt of the excavator, and the thermostat of the excavator is not jammed. The pump water circulation of Taiyuan excavator is good.
5. Fan belt, water pump, telescopic boom excavator rental, thermostat, etc. are no problem, the water temperature is still high after cleaning the water tank.
6. Because the situation of replacing supercharger of excavator is close, it is suspected that supercharger does not match, so it is checked.
7. The supercharger was found to be matched by the inspection, so the intercooler of Chongqing excavator was dismantled. The supercharger was directly connected with the intake port to check whether there was a fault.
After troubleshooting, take out the intercooler and find that the intercooler is blocked.
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