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Maintenance Section
Typical Ewample
3. Open radiator drain valve. Allow the coolant to
drain. Drain the recovery bottle.
4. Close radiator drain valve and install block drain
plug. Fill the cooling system with 1 kg (2 lb) sodi-
um bisulphate per 40 liters (10 gallons) of water.
Most commercial cooling system cleaners can be
used.
5. Start and run the engine for 30 minutes.
6. Stop the engine and drain the cleaning solution.
7. Flush the system with clean water, until draining
water is clear.
8. Close the drain valve and install the block drain
plug. Fill the system with neutralizing solution, 250
g (1/2 lb) sodium carbonate per 40 liters (10 gal-
lons) of water.
9. Start and run the engine for 10 minutes.
10. Stop the engine and drain the neutralizing
solution.
11. Flush the system with clean water until drain-
ing water is clear.
12. Close the drain valve and install the block
drain plug. Add coolant to the top of the filler neck.
13. Start and run the engine to stabilize the
coolant level. See Ò Every 10 Service hours or
Daily Ó, Ò Coolant Level-Check Ó, in this manual.
IA3M4078
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