Volvo TAD420VE, Operator'S Manual

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Maintenance
28
Cooling system Flushing
Cooling performance is reduced by deposits in the
radiator and cooling galleries. The cooling system
should be flushed when the coolant is changed.
1. Drain the coolant, as in the description on the pre-
vious paragraph.
2. Insert a hose into the filler hole in the radiator, and
flush with fresh water until the water which runs
out is completely clear.
3. Close the drain taps and plugs. Fill up with fresh
coolant, as in the instructions in the chapter en-
titled “Coolant. Checking and filling”.
Radiator (air cooled intercooler TAD).
External cleaning
Remove guards as necessary, to access the radiator.
Clean with water and a mild detergent. Use a soft
brush. Be careful not to damage the radiator matrix.
Re-install the components.
IMPORTANT!
Do not use a high pressure pow-
er washer.