Maintenance and troubleshooting of summer cooling system for loader
Jul 25,2025
1. Clean dust and other debris on the surface of the radiator
The radiator is the core component of heat exchange. Flying dust, catkins, insects and other debris on the construction site will block the loader's cooling system, resulting in reduced cooling efficiency.
Inspection points: Check whether the surface of the radiator (water tank, hydraulic oil radiator, air conditioning condenser) is covered with dirt.
Maintenance method:
Be sure to operate after the engine is completely cooled to avoid burns.
Use a high-pressure air gun to blow out from the inside of the radiator (fan side) to completely blow out the debris.
If the oil pollution is serious, you can use a low-pressure water gun to rinse after air blowing. Remember: The water pressure should not be too high to avoid knocking down and damaging the fragile cooling fins.
Make sure the gaps between the radiator groups are also cleaned.
2. Check the coolant
Coolant is the "blood" of the cooling system. Its core function in summer is to prevent boiling. Expired or inferior coolant has a lower boiling point, is easy to boil, and may produce scale and block the pipeline.
Inspection points: Coolant level, color and cleanliness.
Maintenance method:
In the cold state, observe whether the liquid level of the auxiliary water tank is between the highest and lowest scale lines.
Observe whether the coolant is turbid, has sediment or oil stains. If abnormal, all should be replaced immediately.
Replace according to the maintenance manual recommendations (usually 2 years or 2000 hours). Do not mix coolants of different brands.
3. Check the fan belt
The fan is the key to forced ventilation, and the fan belt is the link for transmitting power. Loose belts will slip, resulting in insufficient fan speed and greatly reduced heat dissipation.
Inspection points: Tension and aging of the fan belt.
Maintenance method:
When the engine is turned off, press hard on the middle of the belt with your thumb, and the sinking amount should be between 10-15 mm.
Carefully observe whether there are cracks, damage or excessive wear on the belt surface. If there are, replace it immediately.
4. Check the hydraulic oil radiator
When the loader is working at high intensity, the hydraulic system will also generate huge heat. Excessive hydraulic oil temperature will directly lead to weak operation, slow response, and accelerate the aging of seals.
Inspection points: Cleanliness of the hydraulic oil radiator and hydraulic oil level.
Maintenance method:
When cleaning the water tank radiator, be sure to clean the hydraulic oil radiator installed in parallel.
Ensure that the hydraulic oil level is normal and the oil is clean. Replace the hydraulic oil with the grade that meets the summer working conditions on time.
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Eligible models
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WL08 is the best solution for working in narrow spaces and narrow passages. And with this machine and a large number of accessories related to road construction, agriculture, and horticulture, a considerable amount of work can be carried out.The entire vehicle is made of pure iron, which is particularly suitable for forest and outdoor forest operations such as wood grabbing.This machine has a small turning radius and fast driving speed, and can be deployed in buildings as well as on paved and unpaved sites.
WL10 is the best solution for working in narrow spaces and narrow passages. And with this machine and a large number of accessories related to road construction, agriculture, and horticulture, a considerable amount of work can be carried out.The entire vehicle is made of pure iron, which is particularly suitable for forest and outdoor forest operations such as wood grabbing.This machine has a small turning radius and fast driving speed, and can be deployed in buildings as well as on paved and unpaved sites.
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