JLG 450AJ ANSI Operator Manual - Manual (Page 52)

SECTION 4 - MACHINE OPERATION
4-4 – JLG Lift – 3120748
Loading From Positions Above Ground Level
Before loading weight to platform above ground level:
1. Determine what the total rated capacity weight will
be after additional weight is loaded (personnel, tools
and supplies).
2. If total weight in platform will be less then rated
capacity, proceed with adding weight.
Platform Level Adjustment
1. Leveling UP. Depress footswitch To raise platform,
position PLATFORM LEVEL control switch UP and
hold until platform is level.
2. Leveling DOWN. Depress footswitch To lower plat-
form, position PLATFORM LEVEL control switch to
DOWN and hold until platform is level.
Platform Rotation
1. Depress footswitch to rotate platform to the left,
PLATFORM ROTATE control is positioned to the
LEFT and held until desired position is reached.
2. Depress footswitch to rotate platform to the right,
PLATFORM ROTATE control is positioned to the
RIGHT and held until desired position is reached.
4.8 BOOM
AN ORANGE TILT WARNING LIGHT IS LOCATED ON THE CON-
TROL CONSOLE WHICH LIGHTS WHEN THE CHASSIS IS ON A 5
DEGREE OR GREATER 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. THE TILT ALARM INDICATES THE CHASSIS IS ON
A SEVERE SLOPE (5 DEGREE OR GREATER). CHASSIS MUST BE
LEVEL BEFORE SWINGING, OR RAISING BOOM ABOVE HORI-
ZONTAL.
TO AVOID MACHINE UPSET IF THE ORANGE TILT WARNING
LIGHT ILLUMINATED WHEN THE BOOM IS RAISED ABOVE HORI-
ZONTAL, LOWER THE 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 ON SERIAL NUMBER
PLACARD.
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINERY IF
ANY CONTROL LEVER OR TOGGLE SWITCH CONTROLLING
PLATFORM MOVEMENT DOES NOT RETURN TO THE "OFF" POSI-
TION WHEN RELEASED.
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 EMERGENCY STOP
SWITCH TO STOP MACHINE.
Swinging the Boom
Depress footswitch to swing boom, with footswitch acti-
vated, position SWING control switch to RIGHT or LEFT
for direction desired.
WHEN SWINGING THE BOOM MAKE SURE THERE IS AMPLE
ROOM FOR THE BOOM TO CLEAR SURROUNDING WALLS, PAR-
TITIONS AND EQUIPMENT.
Raising and Lowering the Lower and Mid
Boom.
To raise or lower the Lower and Mid Boom, with footswitch
activated, position Lower Boom Lift switch to UP or DOWN
as desired.