JLG 600SC_660SJC Service Manual - Manual (Page 79)

SECTION 4 - BOOM & PLATFORM
3120898 – JLG Lift – 4-39
20. Next push the ENTER key, this will now show the
newly adjusted settings if you chose to change
them.
21. Now push the (+) key this should put you in the
RAMP DOWN mode.
22. Now push the ENTER key, this will now show the
RAMP DOWN FWD setting on the display, the
default setting will blink now letting you know you
can adjust.
23. Next push the ENTER key, this will show the RAMP
DOWN REVERSE setting on the display, the default
setting will blink now letting you know you can
adjust.