JLG 1500SJ Service Manual - Manual (Page 278)

SECTION 4 - BOOM & PLATFORM
4-32 – JLG Lift – 3121262
36. Attach a strap to pull the outer mid and fly boom
sections out of the inner mid boom section. Secure
the rear of the inner mid boom section so it doesn’t
move as the other sections are withdrawn.
37. Pull the sections out enough to allow easy removal
of the cable retainer blocks and sheave blocks for
the fly boom retract cables at the front of the inner
mid boom section.
NOTE: When pulling the outer mid and fly boom sections
out of the inner mid boom section, make sure the
outer mid retract cables do not catch at the rear of
the boom section.
38. Pull the sections the rest of the way out of the inner
mid boom section, pulling the fly boom retract
cables out at the same time.
39. Remove the outer mid retract cables from the rear of
the inner mid boom section.