JLG 600SC_660SJC Service Manual - Manual (Page 111)

SECTION 4 - BOOM & PLATFORM
3121607 – JLG Lift – 4-9
16. Remove fly boom section from mid section using an
overhead crane or suitable lifting device.
NOTE: When removing fly boom section from mid boom section,
retract wire rope must be dragged along with fly boom sec-
tion.
17. Remove hardware which secures wear pads to aft end of
fly boom section. Remove wear pads from top, sides,
and bottom of fly boom section.
18. When removing wire rope from fly boom section, push
cable into fly boom. Route wire rope back through holes
in side of fly boom section.
Figure 4-16. Wire Rope Routing Disassembly
Inspection
NOTE: Refer to guidelines established in Section 2 - General when
inspecting pins and bearings.
1. Inspect all sheaves (extend and retract wire ropes and
telescope cylinder) for excessive groove wear, burrs, or
other damage. Replace sheaves as necessary.
NOTE: Use a groove gauge to check size, contour, and amount of
wear. Replace sheave if worn as shown in the following
drawing.
Figure 4-17. Dimension of Sheaves When New