JLG 150HAX ANSI Service Manual - Manual (Page 87)

SECTION 4 - BOOM & PLATFORM
3120679 – JLG Lift – 4-7
29. Remove bolts and lockwashers which attach bottom
wear pads at front of outer mid section and remove
pads and any shims.
30. Remove bolts and lockwashers which attach side
wear pads at front of mid section and remove pads
and any shims.
31. Remove bolts and lockwashers which attach top
wear pads to front of mid section and remove pads
and any shims.
32. Using suitable lifting equipment, carefully slide fly
section clear of outer mid section and lower to
ground or suitably supported work area.
33. Remove bolts and lockwashers which secure top
and side aft wear pads to fly section.
Tower Boom Disassembly
NOTE: Left or right is determined facing the machine from
the platform.
1. Loosen the left side powertrack bracket and power-
track and lay on top of boom assembly.
HYDRAULIC LINES AND PORTS SHOULD BE CAPPED IMMEDI-
ATELY AFTER DISCONNECTING LINES TO AVOID ENTRY OF CON-
TAMINANTS INTO SYSTEM.
2. Remove bolts and lockwashers securing telescope
cylinder attach plate to aft end of base boom.
3. Remove bolts and lockwashers securing telescope
cylinder mounting plate to telescope cylinder.
NOTE: Note and record the number and thickness of any
wear pad shims during wear pad removal.
4. Remove bolts and lockwashers attaching side wear
pads to front of base section. Remove pads and any
shims.
5. Remove bolts, washers and lockwashers attaching
lower front wear pads and mounting blocks to base
section. While supporting assembled fly and mid
sections, remove wear pads, mounting blocks and
shims.
6. Remove bolts and lockwashers attaching top front
wear pads to base section. Remove pads and
shims.
7. Using suitable lifting equipment, slide assembled
mid and fly sections out of base section.
8. Carefully lift mid and fly sections clear of base sec-
tion and lower to a suitably supported work area.
9. Remove bolts and lockwashers securing trunnion
blocks to sides of mid section.
10. Carefully pull fly section from mid section far enough
to expose telescope cylinder fly attach pin cover
caps.
11. Remove bolts and lockwashers securing cover caps
to each end of telescope cylinder fly attach pin.
Remove cover caps.
12. Using a slide hammer or brass drift, remove attach
pin from fly section.