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2. Maintain the coolant in the right position (6% the expansion space need to reserved),
add coolant, if necessary.
Adding coolant when the engine is at high temperature will cause coolant boiling
and damages to the engine. Fatherly fill coolant till the coolant temperature is
below 50
℃
.
3. Tighten the heat radiator pressure cap.
5.7.4 CLEANING OF COOLING SYSTEM
The machine takes 4800 hours running or two years (whichever occurs first) as a cycle,
and it requests to replace coolant and clean up the cooling system.
Prior to that, if the coolant is contaminated, and the engine is overheating, corrosion or
bubble occurred in the cooling system, it is necessary to clean the cooling system in
advance and replace coolant.
Manually switch on the negative pole switch of the battery, insert the key in starter
switch and turn with clockwise rotation to switch on the power of the whole vehicle,
and turn on the warm function of the conditioning air-system.
Turn on the water valve of the two heater of the inlet and outlet water pipe of the
evaporator from the engine to the air-conditioning system with counter-clockwise
rotation.
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.
Warning
Warning
