TM 9-2330-246-14
4-44. 110-VOLT WIRING REPLACEMENT (M373A5) (Con't).
Tag and disconnect wires connected to door-operated blackout switch (12).
8.
Remove two screws (8) and cover (7) from each junction box (5).
9.
10.
Tag all wires inside junction boxes. Remove wirenuts (6) and disconnect wires.
11.
Pull wires through conduit and remove.
INSTALLATION
b.
1.
Thread wires through conduit.
2.
Inside junction boxes (5), twist wires together and secure with wirenuts (6). Remove tags.
Install cover (7) on each junction box (5) using two screws (8).
3.
4.
Connect wires to door-operated blackout switch (12). Remove tags.
5.
Install cover (10) and new gasket (11 ) on door-operated blackout switch (12) using four screws (9).
Connect wires to dome light switch (14). Remove tags.
6.
Install domelight switch (14) and cover (15) in junction box (13) using two screws (16).
7.
Connect wires to service receptacle (20) and secure with wirenuts (18). Remove tags.
8.
Install service receptacle (20) and plate (19) on cover (17) using two screws (21).
9.
10.
Connect wires to blackout override switch (4). Remove tags.
11.
Install blackout override switch (4) and plate (2) on junction box (1) using two screws (3).
FOLLOW-ON TASKS:
Connect 110-volt power to semitrailer.
Check operation of all components connected to replaced wiring.
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