JLG 1250AJP Operator Manual - Manual (Page 66)

SECTION 4 - MACHINE OPERATION
4-12 – JLG Lift – 3121170
4.6 ENGINE OPERATION
NOTE: Initial starting should always be performed from the Ground
Control console.
Starting Procedure
IF ENGINE FAILS TO START PROMPTLY, DO NOT CRANK FOR AN EXTENDED TIME.
SHOULD ENGINE FAIL TO START AGAIN, ALLOW STARTER TO “COOL OFF” FOR 2-3 MIN-
UTES. IF ENGINE FAILS AFTER SEVERAL ATTEMPTS, REFER TO ENGINE MAINTENANCE
MANUAL.
NOTE: If the engine fails to start due to cold temperatures or excessive
amounts of smoke are produced on startup, wait for the glow
plug/wait to start indicator to go out before starting the engine.
1. Turn key of SELECT switch to GROUND. Position POWER/
EMERGENCY STOP switch to ON, then push the ENGINE
START switch until engine starts.
ALLOW ENGINE TO WARM-UP FOR A FEW MINUTES AT LOW SPEED BEFORE APPLYING
ANY LOAD.
2. After engine has had sufficient time to warm up, shut engine
off.
3. Turn SELECT switch to PLATFORM.
4. From Platform, pull POWER/EMERGENCY STOP switch out,
then push the ENGINE START switch until engine starts.
NOTE: Footswitch must be in released (up) position before starter will
operate. If starter operates with footswitch in the depressed posi-
tion, DO NOT OPERATE MACHINE.
Shutdown Procedure
IF AN ENGINE MALFUNCTION CAUSES AN UNSCHEDULED SHUTDOWN, DETERMINE
THE CAUSE AND CORRECT IT BEFORE RESTARTING THE ENGINE.
1. Remove all load and allow engine to operate at low speed
for 3-5 minutes; this allows further reduction of internal
engine temperature.
2. Push POWER/EMERGENCY STOP switch in.
3. Turn MASTER switch to Off.
Refer to Engine Manufacturer’s manual for detailed information.