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TM 9-2330-272-14
4-26. ELECTRICAL TUBE AND WIRING REPLACEMENT.
This Task Covers: Replacement
Initial Setup:
Equipment Conditions:
Tools/Test Equipment:
l Intervehicular cable disconnected from semitrailer
l General mechanics tool kit
(para 2-12).
REPLACEMENT
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
NOTE
Electrical tube and wire replacement is the same for all tubes and wires except quantity
of clips may vary.
Remove nosebox cover (para 4-28).
Disconnect plug connectors from lights (para 4-21,4-22,4-23, or 4-24).
Disconnect wiring harness at opposite end of harness.
Remove plug connectors from both ends of wiring harness (para 4-27).
CAUTION
Use caution when removing electrical tubing at straps. Straps should be lifted gently
and only enough to release electrical tubing. Improper handling of straps will cause
them to break.
Gently lift straps (4) and release electrical tube (3). If two or more consecutive straps are missing or damaged,
notify Direct Support Maintenance.
Remove two jamnuts (1) from connectors (2).
Remove electrical tube (3) and two connectors (2) from semitrailer.
Lay electrical tube (3) on work surface.
Connect old wiring harness and new wiring harness together by twisting old wires to new wires.
Pull old wiring harness out and new wiring harness into electrical tube until new wiring harness is in place.
Transfer identification bands from old wires to new wires (para 4-27).
Disconnect and discard old wiring harness from new wiring harness.
Position two connectors (2) and electrical tube (3) on semitrailer.
Install two jamnuts (1) on connectors (2).
WARNING
Use caution when installing electrical tubing at straps. When securing electrical tubing
under straps, a soft-faced hammer should be used to tap straps back into place.
improper handling of straps will cause them to break.
Install electrical tube (3) in straps (4). Gently bend straps over electrical tube.
4-36
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