JLG 1200SJP Service Maintenance Manual page 254

SECTION 4 - BOOM & PLATFORM
21. Remove the adjustment nuts for the for the outer mid
extend cables along with the Broken Cable proximity
switch, spring, and adjustment plate.
22. Remove the cable mounting plate.
4-20
23. Remove the cover plate from the bottom of the boom
and remove the sheave blocks.
24. Remove the trunnion blocks that secure the telescope
cylinder rod to the boom base section.
– JLG Lift – 3121142