JLG 660SJ Service Manual - Manual (Page 247)

SECTION 6 - JLG CONTROL SYSTEM
3121202 – JLG Lift – 6-1
SECTION 6. JLG CONTROL SYSTEM
6.1 INTRODUCTION
WHEN INSTALLING A NEW GROUND MODULE CONTROLLER ON
THE MACHINE, IT WILL BE NECESSARY TO PROGRAM THE CON-
TROLLER FOR THE PROPER MACHINE CONFIGURATION, INCLUD-
ING OPTIONS.
IT IS A GOOD PRACTICE TO AVOID PRESSURE-WASHING ELEC-
TRICAL/ELECTRONIC COMPONENTS. SHOULD PRESSURE-
WASHING BE UTILIZED TO WASH AREAS CONTAINING ELECTRI-
CAL/ELECTRONIC COMPONENTS, JLG INDUSTRIES, INC. REC-
OMMENDS A MAXIMUM PRESSURE OF 750 PSI (52 BAR) AT A
MINIMUM DISTANCE OF 12 INCHES (30.5 CM) AWAY FROM
THESE COMPONENTS. IF ELECTRICAL/ELECTRONIC COMPO-
NENTS ARE SPRAYED, SPRAYING MUST NOT BE DIRECT AND BE
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 and provides
simplicity in viewing and adjusting the various personality
settings for smooth control of: acceleration, deceleration,
creep, min speed, and max.-speed for all boom, drive,
and steering functions.
The upper lift, swing, and drive are controlled by individual
joysticks, with steering being controlled by a rocker switch
built in the top of the drive joystick. To activate Drive, Lift,
and Swing simply pull up on the slide lock location on the
joystick and move the handle in the desired direction.
The control system controls voltage output to the valves
and pump, as programmed for smooth operation and
maximum cycle time. Ground control speeds for all boom
functions can also be programmed in 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 may be added later but
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) which will display 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.
Analyzer Display
Escape Key
To 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