JLG 1230ES Service Manual - Manual (Page 89)

SECTION 5 - CONTROL COMPONENTS
3121222 – JLG Lift – 5-13
5.6 GROUND CONTROL MODULE - SERVICE
PROCEDURE
NOTE: The Ground Control Station supplied with the ZAPI
Power Module P/N-1001092456 (production start
mid-year 2010) does not require use of the printed
circuit board inside the ground control module.
However box installation and removal instructions
shown are exactly the same as the ground control
box which does contain a printed circuit board and is
used with previous machines supplied with the SEV-
CON Power Module.
Ground Control Station
(See Figure 5-6., Ground Control Station Assembly)
DO NOT ATTEMPT TO DISASSEMBLE THE GROUND CONTROL
MODULE IF MACHINE IS STILL UNDER WARRANTY. OPENING
THE GROUND CONTROL MODULE WHILE THE MACHINE IS
UNDER WARRANTY WILL VOID THE WARRANTY. IF UNDER
WARRANTY REQUEST A REPLACEMENT MODULE FROM THE
FACTORY.
The Ground Control Module allows for field replacement
of components internal to the module.
Printed Circuit Board (PCB) Replacement
NOTE: Anytime the ground control box is removed the tilt
sensor must be recalibrated. Refer to Section 7.4,
TILT SENSOR CALIBRATION to recalibrate the tilt.
1. Remove the three bolts at the bottom of the ground
control station.
2. Remove the four screws where the control cable
enters into the control box.
3. Remove plug and place control box face down on a
suitable work bench..
4. Remove the six screws at the back of the ground
control and separate.
5. Pull the pin connectors from the printed circuit
board.
6. Remove the two screws inside the control box that
affix the printed circuit board to the control box.
7. Replace the printed circuit board and reassemble
the ground control box.