JLG 660SJ Service Manual - Manual (Page 191)

SECTION 4 - BOOM & PLATFORM
3121202 – JLG Lift – 4-19
4.8 PLATFORM
Platform Sections Replacement
The platform is made up of five sections: floor, right side,
left side, back (console box mounting.) and gate. The sec-
tions are secured with huck magna grip fastener and col-
lars. Replace damaged platform sections as follows:
1. Support the huck collar with a sledge hammer or
other suitable support.
2. Using a hammer and chisel, remove the collar from
the fastener as shown in the diagram below.
3. When installing new section of platform replace
huck fasteners with 1/4 x 20 NC x 2 1/4" grade 5
bolts, flatwashers and locknuts.
4. When installing a new gate to platform, replace riv-
ets with 1/4 x 20 NC x 2 “grade 5 bolts, flatwashers
and locknuts.
4.9 ROTATOR - HELAC (PRIOR TO S/N
0300130779)
Disassembly
1. Place actuator on a clean workbench.
2. Remove all hydraulic fittings.
3. Using a suitable hammer and chisel remove the por-
tion of end cap securing setscrew.
4. Using a torch, apply heat to the setscrews on the
bottom of actuator.
5. Remove the two (2) setscrew (4) from bottom of
actuator (1). Discard setscrew.
Figure 4-21. Platform Section Replacement
Figure 4-23. Removing Portion of End Cap
Figure 4-24. Heating Setscrew
Figure 4-25. Removing Setscrew