Failure phenomenon:
Black smoke appeared in the excavator operation, which affected the normal operation of the excavator.
Analysis of black smoke from excavator:
Under normal circumstances, if the excavator emits black smoke when the excavator is operating, it means that the excavator is probably burning oil.
Excavator black smoke failure reason:
1 The air filter is blocked, the intake air is too little, and the combustion is not complete.
2 The fuel supply time is incorrect.
3 Inlet valve clearance is too small, will also cause black smoke failure excavator.
4 Diesel is considered too dirty.
5 hydraulic holding cars.
6 The fuel supply of the diesel pump is too large, the materialization of the nozzle is not good, and the dripping of the nozzle causes the black smoke failure of the excavator.
7 The quality of the diesel used is too poor.
8 The pressure of the cylinder of the excavator is insufficient, and the combustion is insufficient, causing the excavator to emit black smoke.
Black smoke maintenance of excavator:
1 First, check the diesel used by the excavator after the failure.
2 Next, check the fuel supply of the excavator diesel pump.
3 Then check the air filter of the excavator.
4 Adjust the fuel injector of the excavator in time, replace the fuel injection nozzle with bad atomization, and calibrate the diesel pump.
5 If you can't rule out the black smoke of the excavator if you have done the above points, then check the hydraulic system of the excavator.
Supplement: When the excavator is working, if it slams on the throttle, it will also cause black smoke from the excavator. At this time, it may be due to the poor sealing of the cylinder of the excavator, or the cylinder piston and cylinder of the excavator The sleeve is caused by wear.
