Lull 644E-42 Operation Manual - Manual (Page 113)

General Maintenance
111 Model 644E Origin 3/04
B. Drain and Flush Radiator
(2000 Hour Intervals)
1. Level the vehicle, ground the attach-
ment, place the travel select lever in
the (N) NEUTRAL DETENT posi-
tion, engage the parking brake
switch and shut off the engine.
2. Unlatch and open the engine cover. Allow time for the engine to cool down
before proceeding. Draining and flushing the engine cooling system while
the engine is still hot can cause cracks in the engine block.
3. Slowly turn the radiator cap (2) to the first stop and allow any pressure to
escape. Remove the radiator cap.
WARNING:
DO NOT attempt this procedure when the engine is
hot. Wait for the engine, muffler and tailpipes to cool down before pro-
ceeding. Failure to do so could result in severe burns.
WARNING:
NEVER remove the radiator cap while the engine is
hot. The cooling system is under pressure. Hot coolant can cause severe
burns or eye injury. Wear protective clothing and safety glasses.
2000
OS0810
OH2700
MU1440
2