JLG 120-SXJ ANSI Service Manual - Manual (Page 71)

SECTION 4 - BOOM & PLATFORM
3121105 – JLG Lift – 4-19
5. Extend the boom until the red tape is approximately
6 inches out of the base boom. Adjust P4 until the
amber LED (DS2) on the Load Moment Circuit card
goes out. This determines the length of the boom
(critical length) where the lift down speed limiter is
turned on.