SECTION 4 - BOOM & PLATFORM
3121623
– JLG Lift –
4-5
4.2
BOOM DISASSEMBLY X20JP - X600AJ
NOTE:
The following procedure assumes the boom is
removed from the machine.
1.
Extend the boom approximately 2 feet (0.6 m).
This will enable access to the bolts that secure
the cable mount block to the boom fly section.
2.
Remove hardware securing the telescope cylin-
der.
Figure 4-4.
NOTE:
Do not allow wire rope to rotate. This may damage
the wire rope.
3.
Clamp both threaded ends of wire rope to pre-
vent rotation. Note: Do not clamp on threads.
Remove jam nuts and nuts which secure the wire
rope adjustments to the bottom front of the
base boom section.
4.
Using a M6 drive extension approximately 4 feet
(1.2 m) long, remove the bolts and washers
securing the cable mount block to the boom fly
section.
Figure 4-5.
5.
Remove the four bolts, shims, and attachment
blocks that secure the telescope cylinder barrel
to the boom mid section.
Figure 4-6.
6.
Remove the four bolts, shims, and mounting
blocks that secure the telescope cylinder rod to
the boom base section.
Figure 4-7.
NOTICE
WHEN REMOVING THE TELESCOPE CYLINDER FROM THE BOOM, IT
MAY BE NECESSARY AT SOME POINT TO TURN THE CYLINDER SLIGHTLY
IN ORDER TO CLEAR ASSEMBLIES MOUNTED WITHIN THE BOOM. CARE
MUST BE TAKEN TO MOVE THE CYLINDER SLOWLY FROM THE BOOM.
DAMAGE TO COMPONENTS MAY RESULT FROM FORCIBLE IMPACT
WITH THESE ASSEMBLIES.
NOTE:
The telescope cylinder weighs approximately 600
lbs. (275 kg).
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