JLG 1043, Operation & Safety Manual, Page: 79 / 202

Section 4—Operation
4-1 31211031
SECTION 4—OPERATION
4.1 ENGINE
Note: Refer to Engine Operation & Maintenance Manual for additional information.
Starting the Engine
This machine can be operated under normal conditions in temperatures of 0°F to 114°F
(-20°C to 45°C). Consult JLG for operation outside this range or under abnormal conditions.
If equipped for extreme cold weather, -40°F to 0°F (-40°C to -20°C), see page 4-2 for
starting procedure.
1. Make sure all controls are in “Neutral” and all electrical components (lights, heater,
etc.) are turned off. Apply park brake.
2. Turn ignition switch to position 1 and wait for engine preheat indicator on
instrument panel to go out.
3. Turn ignition switch to position 2 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.
4. After engine starts, observe indicators. If indicators remain on for more than five
seconds, stop engine and determine cause before restarting engine.
Note: If engine preheat indicator flashes after engine starts, accelerator pedal is deactivated
until indicator goes out.
5. Warm up engine at approximately 1/2 throttle.
Note: Engine will not start unless transmission is in neutral and park brake is applied.
WARNING
UNEXPECTED MOVEMENT HAZARD. Always ensure that transmission 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.