Main Boom Powertrack; Removal; Installation - JLG 400S Service And Maintenance Manual

SECTION 4 - BOOM & PLATFORM

4.4 MAIN BOOM POWERTRACK

Removal

1. Disconnect wiring harness connectors located in turnta-
ble.
2. Tag and disconnect hydraulic lines from connectors at
boom assembly. Use suitable container to retain any
residual hydraulic fluid. Cap or plug all openings of
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.
NOTE: The powertrack weighs approximately 44 lbs. (20 kg).
5. Remove bolts #1 securing the push tube on the fly
boom.
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4-16
PUSH TUBE
2
Figure 4-11. Location of Components - Powertrack
6. With powertrack supported and using all applicable
safety precautions, remove bolts #2, and #3 securing rail
to the carrier tube and push tube. Remove powertrack
from boom.

Installation

1. Using suitable lifting equipment, adequately support
the powertrack weight along entire length.
NOTE: The powertrack weighs approximately 44 lbs. (20 kg).
2. With powertrack supported and using all applicable
safety precautions, align and install bolts #2 and #3
securing rail to the carrier tube and push tube.
3. Install bolts #1 securing the push tube on the fly boom.
4. Remove cap or plugs from opening of hydraulic lines
and port connect all hydraulic lines and electrical cable
to the powertrack as tagged during removal.
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