JLG 150HAX ANSI Service Manual - Manual (Page 91)

SECTION 4 - BOOM & PLATFORM
3120679 – JLG Lift – 4-11
24. Install trunnion pins, tapping pins into place with a
soft headed mallet if necessary. Install cover plate
over trunnion pins and secure to mid section with
bolts, washers, and lockwashers.
25. Install outer mid section retract chain clevis into
attach block at lower front end of base boom sec-
tion. Install adjust nut and locknut on clevis.
NOTE: When installing base section wear pads, install same
number and thickness of shims as were removed
during disassembly.
26. Install base section top front wear pads and shims,
as required, using bolts and lockwashers.
27. Install base section lower front wear pads, mounting
blocks, and shims, as required, using bolts, wash-
ers, and lockwashers.
28. Install base section side front wear pads and shims,
as required, using bolts and lockwashers.
29. Carefully align telescope cylinder rod end with holes
in aft end of base boom section and install attach pin
and bushing. If necessary, tap pin and bushing into
place using a soft headed mallet. Secure pin and
bushing with set screws.
30. Torque extend and retract chains to 50 ft. lb. (68 Nm)
and tighten locknuts.
31. Install base boom end cover and secure in place
with locknuts and washers.
32. Attach platform to boom assembly.
33. Connect wiring to platform control box.
34. Connect hydraulic lines to slave level cylinder and
rotator motor.
35. Attach the right side bracket and powertrack to
boom assembly.
Tower Boom Assembly
1. If removed, align barrel end of upper master cylinder
with mounting holes on end of tower boom fly sec-
tion and install attach pin. Secure pin in place with a
bolt and lockwasher.
2. If removed, align horizontal level link with mounting
holes in end of fly section and install attach pin.
Secure pin in place with a bolt and lockwasher.
NOTE: When installing mid section wear pads, install same
number and thickness of shims as were removed
during disassembly.
3. Install top aft fly section wear pads and shims, as
required, using bolts and lockwashers.
4. Install side aft fly section wear pads and shims, as
required, using bolts and lockwashers.
5. Using suitable lifting equipment, carefully slide fly
section into mid section, just far enough that tele-
scope cylinder fly end attach pin mounting hole is
still exposed.
6. Using suitable lifting equipment, maneuver tele-
scope cylinder into position at aft end of assembled
boom sections.
7. Align fly attach end of telescope cylinder with
mounting holes in fly section and install attach pin.
Secure pin in place with cover caps, bolts, and lock-
washers.
8. Carefully slide fly section the rest of the way into the
mid section.
9. Carefully align ears on base end of cylinder barrel
with notches in base end of mid section. Secure cyl-
inder barrel in place with trunnion blocks, bolts, and
lockwashers.