JLG 660AJ Service Manual - Manual (Page 150)

SECTION 4 - BOOM & PLATFORM
4-2 – JLG Lift – 3121616
Figure 4-1. Rotator, Platform Level Cylinder, and Jib Lift Cylinder Installation
Remove Main Boom Powertrack
1. Disconnect wiring harness connectors in tower upright.
2. Tag and disconnect hydraulic lines from connectors at
boom assembly. Use suitable container to retain any
residual hydraulic fluid. Cap hydraulic lines and ports.
3. Disconnect dual capacity indicator limit switch from side
of boom section.
4. Remove hydraulic lines and electrical cables from pow-
ertrack.
5. Support powertrack weight along entire length using
suitable lifting equipment.
6. Remove bolt (1) from push tube on fly boom section.
7. Remove bolt (2) from push tube on main boom section.
8. With powertrack supported and using all applicable
safety precautions, remove bolts (3), (4), and (5) securing
rail to main boom. Remove powertrack.
Figure 4-2. Main Boom Powertrack Components
1
2
3
4
5