SECTION 4 - BOOM & PLATFORM
4-10
– JLG Lift –
3121623
19.
Apply Loctite #242 to the bolts and fasten the
telescope cylinder rod to the boom base section
with the bolts, shims, mounting blocks.
Figure 4-16.
20.
Apply Loctite #242 to the bolts and fasten the
telescope cylinder barrel to the boom mid sec-
tion with the bolts, shims, mounting blocks.
Figure 4-17.
21.
Using a 3/8 drive extension approximately 4 feet
(1.2 m) long, install the bolts and washers secur-
ing the cable mount block to the boom fly sec-
tion. Tape the bolts to the socket at the end of
the extension to prevent it from coming out of
the socket before it engages the mounting
threads.
Figure 4-18.
22.
Connect all the hydraulic lines to the cylinder as
tagged during the removal procedure.
23.
Adjust the boom cables as outlined under Sec-
tion 4.4, ROPES TENSION ADJUSTMENT PROCE-
DURE.
Installation To Machine
1.
Using a suitable lifting device, position boom
assembly on upright so that the pivot holes in
both boom and upright are aligned.
2.
Install boom pivot pin, ensuring that location of
hole in pin is aligned with attach point on
upright.
3.
If necessary, gently tap pin into position with
soft headed mallet. Secure pin mounting hard-
ware.
4.
Connect all wiring to the ground control box.
5.
Connect all hydraulic lines running along side of
boom assembly.
6.
Using all applicable safety precautions, operate
lifting device in order to position boom lift cylin-
der so that holes in the cylinder rod end and
boom structure are aligned. Insert the lift cylin-
der pin, ensuring that location of hole in pin is
aligned with attach point on boom.
7.
Align holes in boom structure with hole in mas-
ter cylinder. Insert the master cylinder pin,
ensuring that location of hole in pin is aligned
with attach point on boom.
8.
Adjust retract and extend cables to the proper
torque. Refer to Section 4.4, ROPES TENSION
ADJUSTMENT PROCEDURE.
9.
Using all applicable safety precautions, operate
machine systems and raise and extend boom
fully, noting the performance of the extension
cycle.
10.
Retract and lower boom, noting the perfor-
mance of the retraction cycle.
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