Lull 644E-42 Operation Manual - Manual (Page 115)

General Maintenance
113 Model 644E Origin 3/04
9. Fill the radiator completely with a 50/50 mixture of ethylene glycol and
water. Replace the radiator cap. Add coolant to the overflow bottle until the
bottle is 1/2 to 3/4 full. This ìoverfillingî will compensate for any air in the
cooling system.
10. Clean any dirt and debris from the radiator fins and core.
11. Start the engine and run the vehicle to the normal operating temperature,
then shut off the engine. While the engine is cooling, check for leaks.
12. Allow the engine to cool. Check the coolant level in the radiator again, top
off the radiator with a 50/50 mixture of ethylene glycol and water. Replace
the radiator cap.
13. The overflow bottle should be 1/4 to 1/2 full. If not, fill to this level with a
50/50 mixture of ethylene glycol and water.
14. Close and latch the engine cover.
MU13802
3
4
5