JLG M450 Operator Manual - Manual (Page 51)

SECTION 4 - MACHINE OPERATION
3121210 – JLG Lift – 4-5
Platform/Ground Select Switch
The Platform/Ground Select switch directs battery power to
the desired control station when the POWER/EMERGENCY
STOP switch is pulled out (on). With the switch held in the
GROUND position battery power is supplied to the ground
control station. When the switch is in the PLATFORM posi-
tion, battery power is supplied to the platform control station.
Motor Activation
FOOTSWITCH MUST BE DEPRESSED PRIOR TO ACTIVATING ANY FUNC-
TION, OTHERWISE FUNCTION WILL NOT OPERATE.
The motor becomes activated and operates the desired
function when the Emergency Stop switch is pulled out (on),
the Platform/Ground select switch is in the appropriate posi-
tion and the Footswitch is depressed.
IF A MOTOR MALFUNCTION NECESSITATES UNSCHEDULED SHUT-
DOWN, DETERMINE AND CORRECT CAUSE BEFORE RESUMING ANY
OPERATION.
4.4 TRAVELING (DRIVING)
NOTE: For units equipped with optional tilt cutout, verify that the
drive function is cut out when the boom is elevated and tilt
alarm is activated.
NOTE: When lower boom is raised above horizontal, or the upper
boom is raised approximately 16 inches (40.6 cm) above
boom rest, the high drive function will automatically be in
low drive.
IF THE MACHINE IS OPERATED AT A VERY SLOW SPEED OR STALLED
WHEN CLIMBING A GRADE OF 20% OR GREATER, DRIVE FUNCTION
WILL STOP. REMOVE FOOT FROM FOOT-SWITCH, AND DEPRESS FOOT-
SWITCH TO RESET.
DO NOT DRIVE WITH BOOM ABOVE HORIZONTAL EXCEPT ON A
SMOOTH, FIRM AND LEVEL SURFACE.
TO AVOID LOSS OF TRAVEL CONTROL OR “TIP OVER” ON GRADES AND
SIDE SLOPES, DO NOT DRIVE MACHINE ON GRADES EXCEEDING
THOSE SPECIFIED ON THE SERIAL NUMBER PLATE.
DO NOT DRIVE ON SIDESLOPES WHICH EXCEED 5 DEGREES.