Section 4 - operation, 1 engine, Starting the engine – JLG 40xxPS Operator Manual User Manual
Page 69: 1 engine -1, Starting the engine -1, Warning

Section 4 - Operation
4-1
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SECTION 4 - OPERATION
4.1
ENGINE
Starting the Engine
This machine can be operated under normal conditions in temperatures of -18°C to
45°C (0°F to 113°F). Consult JLG for operation outside this range or under abnormal
conditions.
1. Make sure all controls are in “Neutral” and all electrical components (lights,
heater, defroster, etc.) are turned off. Set parking brake.
2. If equipped for platform, pull the power/emergency stop switch up.
3. Turn ignition switch to position I. If active, enter anti theft code.
4. Turn ignition switch to position II. If the temperature is below 0° C (32° F), wait
for preheat indicator on instrument panel to go out.
5. Turn ignition switch to position III to engage starting motor. Release key
immediately when engine starts. If engine fails to start within 20 seconds,
release key and allow starting motor to cool for a few minutes before trying
again.
6. After engine starts, observe engine oil pressure indicator. If indicator remains
on for more than five seconds, stop engine and determine cause before
restarting engine.
7. Warm up engine at approximately 1/2 throttle.
Note: Engine will not start unless transmission control lever is in “Neutral” and park
brake is applied.
WARNING
UNEXPECTED MOVEMENT HAZARD. Always ensure that transmission control
lever is in neutral and the service brake is applied before releasing park brake.
Releasing park brake in either forward or reverse could cause the machine to
move abruptly.
WARNING
ENGINE EXPLOSION. Do not spray ether into air intake for cold weather
starting.