JLG 1200SJP Service Maintenance Manual page 449

25. Swing 180 degrees (centered over opposite end of chas-
sis) for Calibration Position 3.
Figure 6-16. Boom Sensor Calibration Position 3
When the machine is in the proper position, hit Enter.
The screen will read:
3121142
When Position 3 calibrating is complete the screen will
read:
– JLG Lift –
SECTION 6 - JLG CONTROL SYSTEM
6-73