JLG 660SJ Service Manual - Manual (Page 169)

SECTION 4 - BOOM & PLATFORM
3121298 – JLG Lift – 4-21
Disassembly
1. Remove capscrews (113) over end cap lock pins (109).
2. Using a 1/8” (3.18mm) drill bit, drill a hole in center of
each lock pin approximately 3/16" (4.76mm) deep.
3. Remove lock pins using an ”Easy Out” (Size #2 shown. If
pin will not come out, use 5/16" drill bit 1/2" (12.7mm)
deep to drill out entire pin.
4. Remove end cap (4) using tools provided with Helac seal
kit.
5. Using a metal bar or similar tool, unscrew end cap (4) by
turning it counter clockwise.
6. Remove end cap (4) and set aside for later inspection.