TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 419 of 1393
INSTALLATION
1.
Connect two wires (Figure 2, Item 6) to terminals of blackout light switch (Figure 2, Item 2) and install
with
solder.
2.
Install door blackout light switch (Figure 2, Item 2) on electrical panel (Figure 2, Item 7) or switch box
(Figure
2,
Item
1) with two screws (Figure 2, Item 3).
3.
Install plate (Figure 2, Item 5) on blackout light switch (Figure 2, Item 2) with nut (Figure 3, Item 4).
3
4
M9923DAA
1
2
5
6
7
2
3
4
5
6
Figure 2.
Side and Rear Door Blackout Light Switch Installation.
END OF TASK
ADJUSTMENT
NOTE
With main power switch, interior lights, and blackout light circuit on, interior lights must turn
off when door starts to open, and turns on when door is closed.
1.
Remove blackout light switch. See REMOVAL.
2.
Rotate ring (Figure 3, Item 2) down farther on threaded shaft of blackout light switch (Figure 3, Item 1).
3.
Install blackout light switch. See INSTALLATION.
TM 9-2320-272-23-4
0628
0628-2
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