After using the automatic mixer for a period of time, there will be various problems that need to be solved in time. Let's look at three aspects.
1： When the mixer truck runs at high speed, the speed of 1000 mixing stations reaches 150 kilometers per hour, but the gear is not increased in time, and the speed has exceeded 4000 revolutions. Why
Cause: When the oil pressure solenoid valve fails, the gearbox of the mixer will enter the tilting mode and force the third gear drive. This fault is a pressure regulation fault. You need to check in at the store. Try changing the transmission oil. After changing the oil, lock it in the third gear, and then replace the solenoid valve.
2： After the mixer is turned on for a period of time, the water temperature alarm light will go out automatically. What is the reason?
Cause: If this happens, it is recommended to check whether the antifreeze has been used up. If antifreeze is lacking in the water tank, it should be added to the normal level immediately. Secondly, the mixer will naturally lose antifreeze, but not too much. If it is found that it needs to be added frequently in a short time, check the water tank, water pipe, filling bottle and small heating water tank to check whether these parts are leaking.
3： When driving, I always feel that the refrigeration of the mixer is insufficient. Is this the refrigerant to be added?
Cause: The lack of refrigerant in the mixer truck is mainly due to the leakage of a small amount of refrigerant in the system. If the refrigerant in the air conditioning system of the truck mixer is insufficient, the amount of refrigerant injected into the evaporator from the expansion valve will inevitably decrease. When the refrigerant in the truck mixer evaporates in the evaporator, the heat absorbed will also be reduced, and the cooling capacity will also be reduced. It is recommended to go to the service station or repair shop for inspection first. If the inspection results show that it is not necessary to add, it is unnecessary to add, because it is bad to have too much refrigerant in the mixer.
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