4.2 Main Boom Powertrack; Removal; Installation - JLG T500J Service And Maintenance Manual

4.2 MAIN BOOM POWERTRACK

Removal

1. Disconnect wiring harness from ground control box.
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 at boom assembly.
Use a suitable container for residual hydraulic fluid. Cap
hydraulic lines and ports.
3. Remove hydraulic lines and electrical cables from the
powertrack.
4. Using a suitable lifting equipment, adequately support
powertrack weight along entire length.
5. Remove hardware (1) securing push tube on fly boom
section.
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Figure 4-1. Powertrack Removal and Installation
SECTION 4 - BOOM & PLATFORM
6. Remove hardware (2) securing push tube on base boom
section.
7. With powertrack support and using all applicable safety
precautions, remove bolts (3) securing rail to the base
boom section. Remove powertrack from boom section.

Installation

1. With powertrack supported and using all applicable
safety precautions, install hardware (3) securing rail to
the base boom.
2. With adequate support and lifting device align, push
tube on the boom section to get access to install hard-
ware (2).
3. Install the hardware (1) securing push tube to fly boom
section.
4. Connect all hydraulic lines and electrical cables to pow-
ertrack as tagged during removal.
5. Connect wiring harness to ground control box.
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MAE30240
4-3