Boom; Swinging The Boom; Raising And Lowering The Tower Boom - JLG 450A Operation And Safety Manual

4.7

BOOM

A RED TILT WARNING LIGHT IS LOCATED ON THE CONTROL CONSOLE WHICH LIGHTS
WHEN THE CHASSIS IS ON AN EXCESSIVE SLOPE. DO NOT SWING OR RAISE BOOM
ABOVE HORIZONTAL WHEN LIGHT IS LIT.
DO NOT DEPEND ON TILT ALARM AS A LEVEL INDICATOR FOR THE CHASSIS. TILT
ALARM INDICATES CHASSIS IS ON AN EXCESSIVE SLOPE (5 DEGREES OR GREATER).
CHASSIS MUST BE LEVEL BEFORE SWINGING, OR RAISING BOOM ABOVE HORIZONTAL
OR DRIVING WITH THE BOOM ELEVATED.
TO AVOID TIP OVER IF RED TILT WARNING LIGHT LIGHTS WHEN BOOM IS RAISED
ABOVE HORIZONTAL, LOWER PLATFORM TO GROUND LEVEL. THEN REPOSITION
MACHINE SO THAT CHASSIS IS LEVEL BEFORE RAISING BOOM.
TRAVELING WITH BOOM BELOW HORIZONTAL IS PERMITTED ON GRADES AND SIDE
SLOPES SPECIFIED IN THE OPERATING SPECIFICATIONS SECTION OF THIS MANUAL.
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINERY IF ANY CONTROL LEVER OR
TOGGLE SWITCH CONTROLLING PLATFORM MOVEMENT DOES NOT RETURN TO THE
'OFF' OR NEUTRAL POSITION WHEN RELEASED.
3121658
SECTION 4 - MACHINE OPERATION
TO AVOID A COLLISION AND INJURY IF PLATFORM DOES NOT STOP WHEN A CONTROL
SWITCH OR LEVER IS RELEASED, REMOVE FOOT FROM FOOTSWITCH OR USE EMER-
GENCY STOP SWITCH TO STOP THE MACHINE.

Swinging the Boom

To swing boom, use Swing control switch to select
Right or Left direction.

Raising and Lowering the Tower Boom

To raise or lower the Tower Boom, position Tower
Boom Lift switch to Up or Down until desired height is
reached.
4-11