Maintenance machinery

1、 Clean the willow catkins and insect carcasses on the radiator of the water tank

In spring, there are many willow catkins in northern areas, which can easily cause the radiator surface to be blocked by willow catkins and insect carcasses. For trucks that often travel in northern areas, it is necessary to thoroughly clean the radiator of the water tank once a year. As the current truck radiator structure is mostly a multi-layer design of air conditioning condenser+intercooler+radiator tank, in order to ensure the effect, it is recommended to remove and clean the radiator of Baotou North Benz accessories.

2、 Check for proper operation of the fan clutch

Currently, most trucks are equipped with a silicone fan clutch, which is used to adjust the fan speed in real time based on the engine temperature, reduce power consumption, and increase the accuracy of engine temperature control. If there is a fault with the silicone fan clutch, it may cause the fan to rotate at full speed to dissipate heat, resulting in a low fan speed that cannot meet the heat dissipation requirements.

The judgment method is relatively simple, and most silicone fan clutches are equipped with temporary locking devices. After locking, the fan is rigidly connected. If the high temperature fault disappears, the fault point is the silicone fan clutch. If it does not disappear, it proves that the fault point is not here and requires additional troubleshooting. It should be noted that the silicone fan clutch can only be temporarily locked for testing, and cannot be used for a long time. Otherwise, it may cause large power loss and high fuel consumption in light cases, or the fan connecting shaft system may be damaged due to huge inertia in heavy cases, causing the truck to break down halfway.

3、 Check the engine injector

If the fuel injector of an electronically controlled high-pressure electric rail engine is worn or damaged, it may cause the fuel injection quantity to exceed the rated value. Although the power performance will improve, the maximum load of the engine will exceed the factory limits, generating more heat than the heat dissipation capacity of the engine cooling system, causing high engine temperatures. However, this failure is relatively uncommon.

● Improve driving habits

In addition to the vehicle itself, improper driving under extreme conditions can also cause engine high temperature faults. Because trucks have an important performance indicator called heat balance, which means that under certain operating conditions, the heat generated by engine operation and the heat dissipation capacity of the entire vehicle can reach a balanced state, without causing further temperature increases.

However, in actual use, we sometimes overload, and sometimes the gradient will exceed 7%. It is impossible to continuously climb a slope for only 4 minutes, and it is more likely that the vehicle speed will not reach 25 kilometers. You should know that the lower the vehicle speed, the smaller the upwind wind speed, and the more unfavorable for heat dissipation.

Therefore, in some extreme conditions, it is not surprising that the truck is hot. We can lower the gear, reduce the load, and increase the engine speed. This change in driving habits can effectively avoid high temperatures caused by overloading the cooling system.

● Do not clean the interior and use water with caution

Some repair shops recommend cleaning the inside of the radiator of Baotou North Benz accessories, but it is actually unnecessary. Because most trucks today use dedicated coolant, the coolant will not cause scaling inside the water tank. The method of cleaning the inside of the water tank, which was left over from years ago when trucks were cooled with water, has long been incompatible with today's vehicle environment.

Some card users also use water sprinklers to spray the radiator of the water tank, which does not cure the symptoms but the root cause. After a long time of use, a layer of scale will form on the outer surface of the radiator of Baotou North Benz accessories, leading to deterioration of the heat dissipation ability.

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