JLG 450A_AJ Series II Service Manual - Manual (Page 337)

SECTION 6 - JLG CONTROL SYSTEM
3121180 – JLG Lift – 6-1
SECTION 6. JLG CONTROL SYSTEM
6.1 INTRODUCTION
WHEN INSTALLING ANY NEW MODULE CONTROLLER ON THE
MACHINE, THE CONTROLLER MUST BE PROGRAMMED FOR
PROPER MACHINE CONFIGURATION, INCLUDING OPTIONS AND
PROPERLY CALIBRATING THE TILT SENSOR.
AVOID PRESSURE-WASHING ELECTRICAL AND ELECTRONIC
COMPONENTS. IF PRESSURE-WASHING AREAS CONTAINING
ELECTRICAL OR ELECTRONIC COMPONENTS, JLG INDUSTRIES,
INC. RECOMMENDS A MAXIMUM PRESSURE OF 750 PSI (52
BAR) AT A MINIMUM DISTANCE OF 12 INCHES (30.5 CM) AWAY
FROM THESE COMPONENTS. IF ELECTRICAL OR ELECTRONIC
COMPONENTS ARE SPRAYED, SPRAYING MUST NOT BE DIRECT
FOR BRIEF TIME PERIODS TO AVOID HEAVY SATURATION.
The JLG designed Control System is a 12 volt based
motor control unit installed on the boom lift.
The JLG Control System has reduced the need for
exposed terminal strips, diodes, and trimpots. It provides
simplicity in viewing and adjusting various personality set-
tings for smooth control of acceleration, deceleration,
creep, and min and max.-speed for all boom, drive, and
steering functions.
Upper lift, swing, and drive are controlled by individual
joysticks. Steering is controlled by a rocker switch built
into the top of the drive joystick. To activate Drive, Lift, and
Swing pull up the slide lock on the joystick and move the
handle in desired direction.
The control system will control voltage output to valves
and pump, as programmed for smooth operation and
maximum cycle time. Ground control speeds for all boom
functions can be programmed into the control system.
The JLG Control System controller has a built in LED to
indicate any faults. The system stores recent faults which
may be accessed for troubleshooting. Optional equip-
ment includes a soft touch system, head and tail lights,
and ground alarm. These options must be programmed
into the control system when installed.
The Control System may be accessed utilizing a custom
designed, hand held analyzer (Analyzer Kit, JLG part no.
2901443). It displays two lines of information at a time by
scrolling through the program.
NOTE: Each module has a label with the JLG part number
and a serial number which contains a date code.
The following instructions are for the hand held analyzer.
Analyzer Display
Escape Key
Return home or access
previous menu
Enter Key
Stores and selects Top Level, Sub
Level, and item menus
Left & Right Arrow Keys
Used to move between Top Level,
Sub Level, and item menus
Up & Down Arrow Keys
Value Selector
Figure 6-1. Hand Held Analyzer