SECTION 4 - BOOM & PLATFORM
4-18
31215031
Assembly
NOTE:
When installing fly section wear pads, install same number
and thickness of shims as were removed during disassem-
bly.
1.
Measure inside dimensions of base section to determine
number of shims required for proper lift.
2.
Install side, top, and bottom wear pads to aft end of fly
section. Shim evenly to inside measurements of base
boom section.
ENSURE BOOM SLIDING AREAS ARE CLEAR OF CHAINS, TOOLS, AND OTHER
OBJECTS WHEN ASSEMBLING BOOM SECTIONS.
3.
Secure sling and lifting device at telescope cylinder cen-
ter of gravity. Lift cylinder to aft end of fly boom section.
4.
Slide telescope cylinder in aft end of fly boom section.
Align attachment holes in fly boom section with hole in
rod end of telescope cylinder.
5.
Install telescope cylinder pin. Secure with mounting
hardware.
6.
Secure sling and lifting device at fly boom center of
gravity.
7.
Slide fly boom assembly in base boom section. Check for
1/16 in. (1.57 mm) clearance. Shim if needed.
8.
Install wear pads in forward position of base boom sec-
tion. Check for 2/10 in. (5.08 mm) clearance. Shim if
needed.
9.
Align cylinder with slots at aft end of base boom section.
Secure cylinder with mounting hardware.
Installation
1.
Use a suitable lifting device to position boom assembly
on upright. Align pivot holes in boom and upright.
2.
Install boom pivot pin. Ensure location of hole in pin is
aligned with attach point with upright.
3.
Gently tap pin in position with soft headed mallet.
Install pin mounting hardware.
4.
Align holes in boom structure with hole in master cylin-
der. Insert master cylinder pin. Ensure location of hole in
pin is aligned with attach point on boom.
5.
Using all applicable safety precautions, operate lifting
device and position boom lift cylinder so holes in cylin-
der rod end and boom structure are aligned. Insert lift
cylinder pin. Ensure location of hole in pin is aligned
with attach point on boom.
6.
Connect all wiring connectors.
7.
Connect all hydraulic lines running along side of boom
assembly.
8.
Using all applicable safety precautions, operate machine
systems and raise and extend boom fully. Note exten-
sion cycle performance.
9.
Retract and lower boom. Note retraction cycle perfor-
mance.
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