SECTION 4 - MACHINE OPERATION
4-2
– JLG Lift –
3121773
4.3
ENGINE OPERATION
NOTE:
Initial starting must always be performed from the
ground controls.
The battery disconnect switch must be ON
(see Section 4.10
The main power switch at the ground controls
and power/emergency stop buttons at the platform and
ground controls must be ON
(turned clockwise)
to start the
engine.
4
1
6
2
3
5
1.
Platform/Remote (Center)
Platform Position
2.
Ground Control Position -
(Turn ClockWise and Hold)
3.
Platform/Remote Ground
Maintenance Position -
(Turned CounterClockWise)
4.
Gas/Diesel Engine Start
Button
(1)
(if equipped)
5.
Electric Engine Start Button
(1)
6.
Enable Light
NOTE:
(1) Key switch must be set to ON, battery disconnect switch must be ON, and
both the ground and platform emergency stop switches must be reset to ON.
Diesel Starting Procedure
NOTE:
If gas/diesel 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 minutes. If
engine fails after several attempts, refer to manufac-
turers engine maintenance manual.
NOTE:
If engine is diesel, when starting from ground, turn the
start key at the engine to the HEAT (glow plug) posi-
tion for 10 to 15 seconds before attempting to start.
Release the key and start the engine.
1.
With power on, set the key at the Ground/Emer-
gency Control box in the neutral (vertical) position,
then push the appropriate ENGINE START switch
(item 4 or 5)
until engine starts.
NOTE:
Allow gas/diesel engine to warm-up for a few minutes
at low speed before applying any load.
Figure 4-1. Ground/Emergency Control Box
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