JLG X20JP - X600AJ Service Manual - Manual (Page 238)

SECTION 6 - JLG CONTROL SYSTEM
6-22 – JLG Lift – 3121623
6.4 CALIBRATION REQUIREMENT
This machine incorporates a variety of sensors and a high
degree of function interaction. For safety and proper
machine functionality, the calibration procedures must be
repeated for any control module replacement, system cal-
ibration related fault, or removal or replacement of any
sensors, valves, coils.
The chart below lists the calibrations required and poten-
tial reasons for recalibrating.
All calibration procedures are menu driven through the
REMOTE CONTROL.
The user is prompted to exercise the machine in a specific
order to use the machines physical properties to consis-
tently establish sensor response and the interaction of
valves, pumps, and motors.
A REPLACEMENT OF A NEW ECM 1-2 & 3 REQUIRE TO FLASH
THE PROPER MACHINE MODEL SOFTWARE AND TO ADJUST THE
MACHINE SETTINGS. A REPLACEMENT OF A NEW ECM 1-2 DO
NOT REQUIRE THE CALIBRATION OF THE ECM3 AND THE JOY-
STICKS.
Table 6-3. Calibration modules
Calibration
Procedure
Reasons for
Re-calibration
LOAD Cell
Calibration
LSS Module ECM3
replacement
LSS Sensor removal or
replacement
Joystick Calibration Joystick replacement
Chassis Tilt
Calibration Master Board ECM1- ECM2
removal or replacement
Tilt indication inaccuracy