SECTION 4 - BOOM & PLATFORM
4-6
31215031
4.8
MAIN BOOM POWERTRACK
Removal
1.
Disconnect wiring harness connectors located in tower
upright.
HYDRAULIC LINES AND PORTS SHOULD BE CAPPED IMMEDIATELY AFTER DIS-
CONNECTING LINES TO AVOID ENTRY OF CONTAMINANTS INTO SYSTEM.
2.
Tag and disconnect hydraulic lines from connectors at
boom assembly. Use suitable container to collect any
residual hydraulic fluid. Cap hydraulic lines and ports.
3.
Remove hydraulic lines and electrical cables from pow-
ertrack.
4.
Using suitable lifting equipment, adequately support
powertrack weight along entire length.
5.
Remove bolt #1 securing the push tube on the fly boom
section.
6.
Remove bolt #2 securing the push tube on the mid sec-
tion of the boom.
7.
With powertrack supported and using all applicable
safety precautions, remove bolts #3, #4, and #5 securing
rail to the base boom section. Remove powertrack from
boom section.
Installation
1.
Using suitable lifting equipment, adequately support
the powertrack weight along entire length.
2.
With powertrack supported and using all applicable
safety precautions, install bolts #3 securing rail to the
base boom.
3.
Install bolts #2 that attaches rail to the push tube on the
main boom section.
4.
Install bolts #1 securing the push tube on the fly boom
section.
5.
Remove tag and reconnect all hydraulic lines and elec-
trical cable from powertrack.
6.
Remove tag and reconnect hydraulic lines from connec-
tors at boom assembly.
1
2
3
4
5
PUSH TUBE
FLY BOOM
Figure 4-4. Main Boom Powertrack Components
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