Draining, Flushing, and Refilling Cooling System
1. Slowly turn the radiator cap to relieve pressure, then carefully remove cap (A). 2. Open radiator and engine drain cocks (B) and drain. 3. Remove thermostat cover (C) and thermostats. Install cover without thermostats. Tighten cap screws. IMPORTANT: Remove thermostats; turn cab heater ON during entire flushing procedure. 4. Close drain cocks, fill system with a commercial cooling system cleaning solution . Run engine up to operating temperature. Stop engine and drain system. IMPORTANT: Never pour cold water or coolant into hot engine. Use warm water or wait until engine has cooled. 5. Close drain cocks, fill system with clean water . Run engine up to operating temperature. Stop engine and drain system. 6. Remove thermostat cover and clean sealing area. Apply sealant to new gasket and install thermostats and gasket. Tighten cap screws to 48 N·m (35 lb-ft). 7. Close drain cocks again. Fill system with the specified coolant . Run engine to circulate and mix coolant. Coolant level should be up to mark on expansion tank. 8. Addition of coolant conditioner:
9. Clean radiator and cooler condenser. Straighten any bent fins. |
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CAUTION:
Avoid personal injury. DO NOT remove radiator cap when engine is hot. Stop engine and wait until engine has cooled.
AG,RX15494,3562 -19-19JAN00-1/1 |