JLG 800AJ HC3 Operation & Safety Manual page 51

3.5.1 Platform Control Station Functions
To avoid serious injury, do not operate machine if any control levers or toggle
switches controlling platform movement do not return to the off or neutral position
when released.
Drive Orientation Override
When the boom is swung over the rear tires or further in either direction, the Drive Orientation
indicator will illuminate when the drive function is selected. Push and release the switch, and within
3 seconds move the Drive/Steer control to activate drive or steer. Before driving, locate the black/
white orientation arrows on both the chassis and the platform controls. Move the drive controls in a
direction matching the directional arrows for the intended direction of travel.
Drive Speed / Torque Select
The machine has a three position switch - The forward position gives maximum drive speed. The
back position gives maximum torque for rough terrain and climbing grades. The center position
allows the machine to be driven as quietly as possible.
Do not operate machine if drive speed /torque select switch operates when boom
is above horizontal.
Drive / Steer
Push forward to drive forward, pull back to drive in reverse. Steering is accomplished via a thumb-
activated rocker switch on the end of the steer handle.
Note: To operate the Drive joystick, pull up on the locking ring below the handle.
Note: The Drive joystick is spring loaded and will automatically return to neutral (off) position
when released.
Engine Start / Auxiliary Power
When pushed forward, the switch energizes the starter motor to start the engine.
The Auxiliary Power control switch energizes the electrically operated hydraulic pump. (Switch must
be held on for duration of auxiliary pump use.)
The auxiliary pump functions to provide sufficient oil flow to operate the basic machine functions
should the main pump or engine fail. The auxiliary pump will operate tower boom lift, tower
telescope, main boom lift, main telescope and swing.
800AJ HC3
WARNING
CAUTION
31222411
Machine Controls and Indicators
51