JLG 800A_AJ ANSI Service Manual - Manual (Page 267)

SECTION 4 - BOOM & PLATFORM
3120740 – JLG Lift – 4-53
i. When viewing the above display, press
"ENTER" . The screen will display the fol-
lowing:
j. Lower the tower boom onto the boom stop.
Continue to hold the tower boom down function
for at least twenty (20) seconds WITHOUT
RELEASING THE FUNCTION SWITCH. The
calibration must recognize continuous activation
of the tower down function switch for the
required time.
After the required activation time has passed,
r e l e a s e t h e f u n c t i o n s wi t c h a n d p r e s s
"ENTER" . The analyzer will display the fol-
lowing message:
If the calibration has been completed success-
fully, the screen will automatically change to: