JLG E450A, Service And Maintenance Manual

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SECTION 4 - BOOM & PLATFORM
3121714 4-5
4.3 MAIN BOOM POWERTRACK (E/M450AJ)
Removal
1. Disconnect wiring harness connectors located in main
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 to the connectors at
boom assembly. Use a suitable container to retain any
residual hydraulic fluid. Cap hydraulic lines and ports.
3. Remove hydraulic lines and electrical cables from Pow-
ertrack.
NOTE: The Main Boom weighs approximately 590lbs. (268kg).
4. Using suitable lifting equipment, adequately support
Powertrack weight along entire length.
5. Remove bolts #1 securing the push tube on the fly
boom section.
6. Remove bolts #2 that attaches rail to the push tube on
the main boom section.
7. With powertrack supported and using all applicable
safety precautions, remove bolts #3 securing rail to the
base boom. Remove powertrack from the boom section.
Installation
NOTE: The Main Boom weighs approximately 590lbs. (268kg).
1. Using suitable lifting equipment, adequately support
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.
6. Reconnect all electrical harness.