Fault details: the hydraulic pump and engine of Caterpillar cat336 machine have just been repaired. It is slow to use the bucket to retract the middle arm for work, and the walking still deviates. The engine still has a lot of black smoke
Cause analysis of "black smoke and large travel deviation" fault of Caterpillar cat336 excavator engine:
1. The air inlet filter element should be replaced frequently The water tank and oil radiator shall be cleaned frequently or blown with high-pressure air.
2. The fan shall be normal, and the belt tightness shall be checked frequently The engine oil should be changed frequently, and the filter element should be replaced.
3. The variable mechanism of the hydraulic system should be normal, otherwise the engine will work at full load for a long time and its service life will be shortened.
4. Parts should be genuine Pay close attention to the water temperature and engine oil during use.
Fault inspection and maintenance of "black smoke and large travel deviation of Caterpillar cat336 excavator engine":
1. When the excavator is running off track, first adjust the high-pressure oil pipe to see if the off track phenomenon has changed? Then check whether the traveling pressure of the center swivel, the seal ring of the center swivel and one side is lower than the specified pressure?
2. The engine of the excavator is very smoky. Check and replace the filter element. If not, it should be that it is too smoky during the journey of the action. The engine slows down. Whether you slow down the action or that, you can control the return oil pressure of the diesel pump to a high point. The specific operation is to open a 36 screw on the diesel pump, and tighten a small screw inside to solve the problem In addition, if there is deviation in the pump control pressure and action speed, it can be adjusted on the pump. The specific position is to open the side door and face the hydraulic pump. The pump on the left can be adjusted.
