Operator Manual

SECTION 4 - MACHINE OPERATION
4-12 – JLG Lift – 3121255
4.9 BOOM
DO NOT SWING OR RAISE BOOM ABOVE HORIZONTAL WHEN
MACHINE IS OUT OF LEVEL.
DO NOT DEPEND ON TILT ALARM AS A LEVEL INDICATOR FOR THE
CHASSIS.
TO AVOID TIP OVER, LOWER PLATFORM TO GROUND LEVEL. THEN
DRIVE MACHINE TO A LEVEL SURFACE BEFORE RAISING BOOM.
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY CON-
TROL LEVER OR TOGGLE SWITCH CONTROLLING PLATFORM MOVE-
MENT DOES NOT RETURN TO THE ‘OFF’ OR NEUTRAL POSITION WHEN
RELEASED.
IF THE PLATFORM DOES NOT STOP WHEN A CONTROL SWITCH OR
LEVER IS RELEASED, REMOVE FOOT FROM FOOTSWITCH OR USE
EMERGENCY STOP SWITCH TO STOP THE MACHINE.
Swinging the Boom
To swing boom, use Swing control to select Right or Left
direction.
WHEN SWINGING THE BOOM MAKE SURE THERE IS AMPLE ROOM FOR
THE BOOM TO CLEAR SURROUNDING WALLS, PARTITIONS AND EQUIP-
MENT.
Raising and Lowering the Boom
NOTE: The lift function is not operable above 15 degrees above
horizontal if the axles are not fully extended.
To raise or lower the Boom, use Boom Lift control to select
Up or Down movement.
Telescoping the Boom
NOTE: The telescope function is not operable beyond the trans-
port position if the axles are not fully extended.
To extend or retract the main boom, use the Telescope Control
Switch to select In or Out movement.