JLG 1500SJ Service Manual - Manual (Page 264)

SECTION 4 - BOOM & PLATFORM
4-18 – JLG Lift – 3121262
8. Attach a lifting device to the powertrack for support
and unbolt the upper powertrack tube from the fly
boom. Pull the disconnected tube back to allow
room to disconnect the lower tube.
9. Unbolt the lower powertrack tube from the outer mid
boom section and the mounting bracket from the
inner mid boom section..
10. Attach a strap or other similar device around the
powertrack and boom to keep the powertrack
secure throughout the cable replacement proce-
dure.