JLG 1350SJP Service Manual - Manual (Page 454)

SECTION 6 - JLG CONTROL SYSTEM
6-78 – JLG Lift – 3121142
Press Enter. The screen will read:
31. Telescope to the yellow witness mark (controller will be
close - operator must position the pointer to center line
on decal within 0.25" [6 mm]) for Calibration Position 9.
When the boom is in the proper position, hit Enter. The
screen will read:
When Position 9 calibrating is complete, the screen will
read:
Figure 6-22. Boom Sensor Calibration Position 9