JLG 4017 Operator Manual - Manual (Page 58)

Section 3 - Operation
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3.2 ENGINE
Starting the Engine
This machine can be operated in temperatures of -20°C to 40°C (0°F to 104°F).
Consult JLG for operation outside this range.
1. If equipped, turn on the battery disconnect switch located in engine
compartment.
2. Make sure all controls are in “Neutral” and all electrical components (lights,
heater, defroster, etc.) are turned off. Set parking brake.
3. Turn the ignition switch to preheat position. Enter anti theft code if anti theft
device is activated. Wait for preheat symbol on display to disappear.
4. Turn ignition switch to position 3 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.
5. After engine starts, if engine oil pressure does not rise for more than ten
seconds, the engine oil pressure symbol will show on display screen and buzzer
will sound. Stop engine and determine cause before restarting engine.
Reference engine manual for minimum pressure at operating temperature.
6. 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, causing an accident resulting in death or serious injury.
CAUTION
ENGINE EXPLOSION. Do not spray ether into air intake for cold weather
starting. Failure to comply could result in death or serious injury.