In high-temperature weather, maintaining the radiator of a Raiso loader should start from four core links: cleaning and maintenance, component inspection, coolant management, and operation norms. By combining professional tools and standardized procedures, the heat dissipation efficiency can be effectively improved and the service life of the equipment can be prolonged. The following is the specific maintenance plan.

I.Deep cleaning: Remove blockages in the heat dissipation system

Clean the surface of the radiator

1.Daily cleaning: Use a high-pressure air gun (pressure ≤0.3MPa) to blow away dust, willow catkins and other debris from the front, back and sides of the radiator to prevent deformation of the radiator fins due to excessive water pressure.

Stubborn oil sludge treatment: If the heat sink is stained with oil, it can be gently brushed with a soft brush soaked in diesel oil, and then dried with a high-pressure air gun. It has been measured that the temperature can be reduced by 5-8℃.

Internal cleaning of the water tank

Start the loader for 5 minutes. When the water temperature rises to 30℃, turn off the engine and open the drain valve to drain all the coolant.

Close the drain valve, add clean water and start for 2 to 3 minutes. Repeat the water-draining and water-adding cycle until clean water is discharged.

Do not add water directly: After cleaning, antifreeze must be added to prevent scale from blocking the pipes.

2.Scale removal from the cooling system

Every 1000 hours or annually (whichever comes first), add professional cooling system cleaner to the coolant in the proportion specified in the manual. Let it idle for 30 minutes, then drain it completely and replace it with new coolant.

II. Inspection and Replacement of Key Components

1.Water pump and thermostat

Water leakage from the pump shaft seal: If coolant leakage is found around the pump, the entire impeller should be replaced.

Thermostat jamming detection: Determine by the temperature difference between the upper and lower water pipes (a temperature difference greater than 10℃ indicates a thermostat fault), and it needs to be replaced immediately.

2.Maintenance of drive belts

Belt tightness: Press the middle of the belt with your finger. The indentation should be 10-15mm. Otherwise, the tensioner pulley needs to be adjusted or the belt replaced.

Belt life: Check the wear condition of the belt every 500 hours. Replace it when cracks or deformations appear on the surface.

3.The water tank is connected to the rubber hose

Check the rubber hoses weekly for any signs of rupture or aging, with a focus on the connections between the water tank and the water pump as well as the engine. Replace them immediately if any leakage is found.