Start the engine, turn off after 5 minutes idle operation, then switch on again, slowly turn off the
pressure cap of the heat radiator to release pressure till the coolant temperature is below 50℃.
Open the outlet valve at the bottom of the heat radiator, drain out the engine coolant.
As the engine coolant is toxic, do not drink or casually discard.
5. After drain out the engine coolant, turn off the
outlet valve at the bottom of heat radiator, see
right figure:
6. Re-fill soft water into the engine and add proper amount of special cleaning agent with the same
filling method as that of the coolant.
7. Repeat the above steps 4, 5, and 6 till the cleaning liquid is discharged without too much dirt.
8. Fill the coolant with the method specified for adding coolant.
5.5.5 ENGINE AIR FILTER MAINTENANCE
When the Engine is working, it demands clean and fresh air from filter, and proper maintenance
protects the cylinder liner, piston, piston rings, valves and other parts of from wearing and reduces the
wearing. Air filter can also reduce the intake noise.
1. Air filter must be replaced when the filter element is broken.
2. In case of maintenance, do not pollute the internal side of the filter element.
3. Do not drive the loader without air filter element or air filter.
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