Author: Date of release of Jupeng Machinery:2018-11-26
Frequency of attention:2637
There will be many problems in the use of excavators, such as sudden black smoke from excavators, or uncooled excavators with high water temperature and air conditioning. These problems need to be investigated and solved one by one. They must not be left behind. This may also lead to more and more serious problems, but for excavators. Maintenance, we must be specific analysis of the specific situation, repair when the prescription.
Analysis of Sudden Black Smoke from Excavator:
The digger mechanical and electrical system will not change the proportional valve data normally. The problem should be to check the exhaust system of the supercharged system in the diesel pump. Is there any leakage in the intake system, to see if the insufficient intake causes the phenomenon of black smoke?
If there is black smoke, and the engine speed has decreased, the pump control pressure, movement speed deviation, can be adjusted on the pump. The black smoke suddenly comes out during the excavator work. If there are adjustment data before, it is suggested that the return oil pressure of diesel pump can be controlled at a high point.
Unrefrigerated maintenance of excavator water temperature and high air conditioning?
Cause analysis and solution steps of excavator water temperature high and air conditioning unable to refrigerate:
1. Check whether the radiator of the excavator is blocked. If the water temperature of the air conditioner is too high, turn off the air conditioner to see if the temperature drops quickly. If so, blow the radiator. Sponge up all around the tank to see if the heat sink is dirty? In addition, the flow rate can be reduced, the engine load is small, and the temperature is not so high.
2. Remove the thermostat of the excavator, or see if the thermostat is stuck. Also, loosening of the return tank screw will cause high water temperature of excavator.
3. Excavator engine with large air conditioning load, naturally easy to high temperature. Don't install the thermostat in the summer, and try to work with the engine cover open, so that it's easier to heat up, and if you don't rest assured, remove the water tank and clean it, it's useless to blow it with an air pump. And you can install a small 24 volt fan outside the radiator, which can also effectively dissipate heat. The excavator works with high power and keeps a high oil tightness all the time, so it is easy to get high temperature.
4. You can also change the belt tray of the pump to a larger size. Or a less powerful compressor. When the water tank is dismantled, rinse it both inside and outside, remove the thermostat, and wash the air conditioning condenser in front of the water tank with the car washer. Be careful not to wash down the radiator. The key is to check the coupler, especially when it is hot, whether it can be easily turned.