JLG 680S, Service And Maintenance Manual

Page: 283 / 530

SECTION 4 - BOOM & PLATFORM
3121234 4-19
6. Remove hardware securing timing link to boom assem-
bly. Remove pin from boom assembly.
7. Using a suitable brass drift and hammer, remove hard-
ware securing the main boom section to the upright.
8. Using all applicable safety precautions, carefully lift
boom assembly clear of upright and lower to ground or
suitably supported work surface.
Disassembly
NOTE: The following procedure assumes the boom is removed
from the machine.
1. Extend the boom approximately 2 ft. (0.6 m). This will
enable access to the bolts that secure the cable mount
block to the boom fly section.
2. Remove hardware securing the telescope cylinder.
3. Remove hardware securing the cover plate on the bot-
tom front of the base boom section.
NOTE: Do not allow wire rope to rotate. This may damage the
wire rope.
TIMING LINK