JLG 740AJ ANSI Operator Manual - Manual (Page 62)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-16 – JLG Lift – 3121650
Platform Console Indicator Panel
(See Figure 3-4., Platform Console Indicator Panel)
1. Tilt Alarm Warning Light and Alarm
This illuminator indicates that the chassis is on
a slope. An alarm will also sound when the
chassis is on a slope and the boom is above
horizontal. If lit when boom is raised or extended, retract
and lower to below horizontal then reposition machine so
that it is level before continuing operation. If the boom is
above horizontal and the machine is on a slope, the tilt
alarm warning light will illuminate and an alarm will sound
and CREEP is automatically activated.
IF TILT WARNING LIGHT IS ILLUMINATED WHEN BOOM IS RAISED OR EXTENDED,
RETRACT AND LOWER TO BELOW HORIZONTAL THEN REPOSITION MACHINE SO THAT
IT IS LEVEL BEFORE EXTENDING BOOM OR RAISING BOOM ABOVE HORIZONTAL.
NOTE: In certain markets, when the tilt sensor alarm is activated the
Drive function will be disabled if the boom is elevated above hor-
izontal.
2. Platform Overload (If equipped)
Indicates the platform has been overloaded.
3. Boom Malfunction Indicator
When an audible alarm sounds and the Boom
Malfunction Indicator illuminates when
attempting to activate a tower boom function,
the function is being cutout by tower boom limit switch. This
function is not permitted at the current boom configuration.
When an audible alarm sounds and the Boom Malfunction
Indicator illuminates steady without a boom function
attempt, the upright is out of alignment.
DISCONTINUE OPERATION IF THE UPRIGHT IS OUT OF ALIGNMENT OR THE BOOM
MALFUNCTION LIGHT REMAINS ILLUMINATED.
IF THE UPRIGHT IS OUT OF ALIGNMENT WITH THE PLATFORM RAISED, LOWER THE
MAIN BOOM AND TELESCOPE OUT UNTIL THE PLATFORM REACHES THE GROUND. THE
TOWER BOOM DOWN FUNCTION IS CUT OUT IN THIS CONDITION. REPORT THE PROB-
LEM TO THE PROPER SERVICE PERSONNEL. DO NOT OPERATE THE MACHINE UNTIL
THE CONDITION IS CORRECTED.