Refrigerated car maintenance manual
The cooling of the engine and air-conditioning system of the refrigerated truck is poor, causing the following problems and solutions to occur when the water temperature is too high:
1. In poor traffic - traffic jams or prolonged idling, the refrigerated car engine water temperature indicator is displayed too high, the electronic fan high gear working time is too long, the engine noise is increased, and the air temperature is too high. Scientific and reasonable maintenance of the car to help you save unnecessary costs to avoid the ten errors in the car maintenance
Solution: After the hot car, check the water return of the return pipe on the top of the antifreeze storage tank. If the return water is not smooth or blocked, the water temperature will be too high.
Reminder: Do not blindly disassemble and replace parts during maintenance.
2. When the air temperature of the refrigerated truck is too high, the speed and speed of the refrigerated truck float too fast, and the speed is too fast to accelerate. The engine has abnormal noise.
Solution: Check whether there is excessive dust between the condenser and the water tank, and clean thoroughly with high-pressure gas to ensure that the water tank and the condenser have good heat dissipation performance.
Reminder: Always pay attention to the dust between the condenser and the tank.
3. When the hot car is extinguished for more than ten minutes, it is not easy to start the car when it is started; it sometimes turns off automatically when the hot car is running.
Solution: In the hot car, check the temperature difference between the upper and lower water pipes of the tank. If the temperature difference is too large, you need to check the opening of the thermostat and the failure of the water pump to spin off.
Reminder: The temperature difference between the upper and lower water pipes of the tank should not be too large.
4, cold air conditioning when the cooling temperature is very cold, hot air conditioning when the cooling effect is not obvious; and the air conditioning system has a large resonance buzzing sound.
Solution: Due to the non-standard addition and replacement of antifreeze, it will cause early blockage of engine water channels and water tanks and high water temperature. Antifreeze is replaced once every two years and original parts must be used for replacement and addition.
Reminder: After the water is added to the engine cooling system, or the concentration of antifreeze added exceeds 60%, the water temperature will be too high.
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1. In poor traffic - traffic jams or prolonged idling, the refrigerated car engine water temperature indicator is displayed too high, the electronic fan high gear working time is too long, the engine noise is increased, and the air temperature is too high. Scientific and reasonable maintenance of the car to help you save unnecessary costs to avoid the ten errors in the car maintenance
Solution: After the hot car, check the water return of the return pipe on the top of the antifreeze storage tank. If the return water is not smooth or blocked, the water temperature will be too high.
Reminder: Do not blindly disassemble and replace parts during maintenance.
2. When the air temperature of the refrigerated truck is too high, the speed and speed of the refrigerated truck float too fast, and the speed is too fast to accelerate. The engine has abnormal noise.
Solution: Check whether there is excessive dust between the condenser and the water tank, and clean thoroughly with high-pressure gas to ensure that the water tank and the condenser have good heat dissipation performance.
Reminder: Always pay attention to the dust between the condenser and the tank.
3. When the hot car is extinguished for more than ten minutes, it is not easy to start the car when it is started; it sometimes turns off automatically when the hot car is running.
Solution: In the hot car, check the temperature difference between the upper and lower water pipes of the tank. If the temperature difference is too large, you need to check the opening of the thermostat and the failure of the water pump to spin off.
Reminder: The temperature difference between the upper and lower water pipes of the tank should not be too large.
4, cold air conditioning when the cooling temperature is very cold, hot air conditioning when the cooling effect is not obvious; and the air conditioning system has a large resonance buzzing sound.
Solution: Due to the non-standard addition and replacement of antifreeze, it will cause early blockage of engine water channels and water tanks and high water temperature. Antifreeze is replaced once every two years and original parts must be used for replacement and addition.
Reminder: After the water is added to the engine cooling system, or the concentration of antifreeze added exceeds 60%, the water temperature will be too high.
UKL Bearing Manufacturing Co., Ltd., , https://www.bearingukl.com