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4.11 Maintenance procedure
When required
Cleaning the system
At 2000 hours clean the cooling system as follows:
1. Drain the system into a suitable container.
Refer to "Draining the system (4-43)".
2. Drain and clean the reserve tank.
3. Close the radiator plug.
4. Fill the system with clean water, refer to "Filling the system
(4-44)" and add a flushing compound that is compatible with
aluminium. Flush the system in accordance with the instruc-
tions furnished with the compound.
5. After flushing, rinsing and completely draining the system.
Refill with clean coolant.
Refer to "Filling the system (4-44)".
Filling the system
REMARK
Be sure to fill the heater and heater supply lines with fresh cool-
ant, even if the heater is not in use (warm weather). Leaving the
heater core empty causes corrosion in the heater.
1. Be sure the radiator drain is closed and tightened.
2. Fill the cooling system to maximum capacity. Fill with anti-
freeze.
For details, see "Coolant (4-9)".
For details, see "Precautions when filling radiator (4-4)".
3. Start engine and run until normal operating temperature is
reached. Add coolant when needed to keep proper level in
reserve tank.
4. After all air is removed and level remains fixed, install the
radiator cap.
5. Fill the radiator reserve tank with coolant until level is
between the FULL and LOW markings on the tank.
4-44
Maintenance
PW180-7E0 – VEAM400102
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