CAT Forklift - Antifreeze Addition Guidelines

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3. Open radiator drain valve. Allow the
coolant to drain.
5. Close the radiator drain valve.
6. Fill the cooling system with 1 kg (2 lb)
sodium bisulfate per 40 liters (10 gallons)
of water. Most commercial cooling system
cleaners can be used.
7. Start and run the engine for 30 minutes.
8. Stop the engine and drain the cleaning
solution.
9. Flush the system with clean water until the
draining water is clear.
10. Close the drain valve. Fill the system with
neutralizing solution, 250 g (1/2 lb)
sodium carbonate per 40 liters (10 gallons)
of water.
11. Start and run the engine for 10 minutes.
12. Stop the engine and drain the neutralizing
solution.
13. Flush the system with clean water until
draining water is clear.
20. Put the radiator filler cap back on.
17. Start and run the engine until the coolant
level is stabilized.
18. Stop the engine.
19. Add coolant, if necessary, to maintain the
level to below the bottom of the filler tube.
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MAINTENANCE
4. Drain the reserve tank.
14. Close the drain valve.
15. Mix a coolant solution of water and
antifreeze.
16. Fill the cooling system. See Refill
Capacities. To avoid air locks, add the
coolant slowly.
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