JLG M400 Operator Manual - Manual (Page 60)

SECTION 4 - MACHINE OPERATION
4-10 – JLG Lift – 3121644
4.7 BOOM
A RED TILT WARNING LIGHT IS LOCATED ON THE CONTROL 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 OR AUDIBLE ALARM SOUNDS.
DO NOT DEPEND ON TILT ALARM AS A LEVEL INDICATOR FOR THE
CHASSIS. TILT ALARM INDICATES CHASSIS IS ON A SEVERE SLOPE (5 DEGREE OR
GREATER). CHASSIS MUST BE LEVEL BEFORE SWINGING, OR RAISING BOOM ABOVE
HORIZONTAL.
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 NOT
EXCEEDING THOSE SPECIFIED ON THE SERIAL NUMBER PLATE.
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.
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, with footswitch activated, posi-
tion Swing control switch to Right or Left for direc-
tion desired.
WHEN SWINGING THE BOOM MAKE SURE THERE IS AMPLE ROOM FOR THE BOOM TO
CLEAR SURROUNDING WALLS, PARTITIONS 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.
Raising and Lowering the Upper Boom
To raise or lower the Upper Boom, with footswitch
activated, position Upper Boom Lift switch to Up
or Down until desired height is reached.