JLG GRADALL 544D-10, Operation & Safety Manual

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Section 3 - Controls and Indicators
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Boom Joystick
The boom joystick ( 1 ) controls the boom and attachment tilt (if equipped) functions.
Boom Functions
• Move the joystick back to lift boom; move joystick forward to lower boom; move
joystick right to extend boom; move joystick left to retract boom.
• The speed of boom functions depends upon the amount of joystick travel in
corresponding direction. Increasing engine speed will also increase function
speed.
• For two simultaneous boom functions, move the joystick between quadrants. For
example; moving the joystick forward and to the left will lower and retract boom
simultaneously.
Attachment Tilt (if equipped)
Tilt control is actuated by the switch ( 2 ).
• Depress the rear of the switch to tilt up; depress the front of switch to tilt down.
WARNING
TIP OVER/CRUSH HAZARD. Rapid, jerky operation of controls will cause rapid,
jerky movement of the load. Such movements could cause the load to shift or fall
or could cause the machine to tip over.
OX0060
1
2
IF EQUIPPED