Service Manual Instruction Manual

SECTION 6 - JLG CONTROL SYSTEM
3121171 – JLG Lift – 6-47
12. If the tower lift wiring and hosing is properly installed
and not damaged, hit enter. The screen will read:
13. If the tower telescope wiring and hosing is properly
installed and not damaged, hit enter. The screen will
read:
14. The control system will next calibrate the LIFT, TWR LIFT,
and TWR TELE valves. This can be confirmed by watch-
ing the LED’s on the respective valves as they are being
calibrated. When the valves are calibrated, the screen
will read:
NOTE: It may take several minutes per valve section for the cali-
bration procedure.
15. After completing Boom Valve Calibration, hit ESC twice
to go back to CALIBRATIONS.