JLG 450A_AJ Series II Service Manual - Manual (Page 202)

SECTION 3 - CHASSIS & TURNTABLE
3-152 – JLG Lift – 3121180
6. Remove fill cap and fill coolant recovery reservoir to
cold level line. Put fill cap back on reservoir when
done.
7. Start engine and run it long enough to bring coolant
to operating temperature. Turn off engine.
REMOVING RADIATOR CAP WITH COOLANT HOT AND UNDER PRES-
SURE CAN CAUSE SEVERE INJURIES. ALLOW ENGINE AND COOL-
ING SYSTEM TO COOL BEFORE REMOVING RADIATOR CAP.
8. Make sure coolant reaches hot level line on coolant
recovery reservoir. Add coolant as needed.
IF RADIATOR CAP IS REMOVED AND COOLANT IS LOST,
REPEAT THIS PROCEDURE TO ENSURE COOLING SYSTEM IS
FILLED TO PROPER LEVEL.