JLG 1850SJ Service And Maintenance Manual page 519

NOTE: Have an assistant help verify that movement occurs.
8. At the Ground Controls, press
and hold the Lift Up toggle
switch until the function starts
moving, then press
. Release the Lift Up toggle
switch.
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ENTER
SECTION 6 - JLG CONTROL SYSTEM
9. This completes the Main Lift Up crackpoint procedure.
Press ENTER .
10. Press ENTER to calibrate Main Lift Down crack-
point.
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