TM 9-2330-246-14
4-34. 24-VOLT DOMELIGHT MAINTENANCE (M373A3, M373A4, AND M373A5) (Con't).
8.
Remove two screws (6). Remove metal plate (5) and gasket (4) from blackout light Iampholder (46).
Remove seven screws (28). Remove lens retainer (27), white lens (26) and gasket (25), and blackout lens (23)
9.
and gasket (24) from lens retainer (9). Discard gaskets.
Remove screw (17) and Iockwasher (18). Remove knob (19) from switch (45). Discard Iockwasher.
10.
Remove locknut (20), flatwasher (21), gasket (22), and switch (45) from lens retainer (9). Discard locknut and
11.
gasket.
Remove setscrew (11), push button (12), and spring (13) from knob (19).
12.
13.
Disconnect electrical lead (29) from connector (31).
14.
Remove two screws (32). Remove connector (31) and preformed packing (30) from body (33). Discard
p r e f o r m e d packing.
15.
If damaged, remove eight retaining rings (8) and screws (10) from lens retainer (9), Discard retaining rings.
c.
CLEANING AND INSPECTION
1.
Clean all parts with a clean, dry cloth.
2.
Inspect electrical lead, Iampholders, and wiring for broken insulation or bare wires.
Inspect lenses for cracks, breaks, or chips.
3.
4.
Replace all defective parts.
ASSEMBLY
d.
1.
If removed, install eight screws (10) in lens retainer (9) and secure with new retaining rings (8).
Install new preformed packing (30) and connector (31) on body (33) using two screws (32).
2.
Connect electrical lead (29) to connector (31).
3.
4.
Install spring (13) and push button (12) in knob (19). Hole in push button must be alined with slot in knob. Install
setscrew (11) to secure spring and push button.
Aline notch in face of switch (45) with pin in lens retainer (9) and insert switch shaft through hole in lens retainer.
5.
Install new gasket (22), flatwasher (21), and new locknut (20) on shaft of switch (45).
6.
Install knob (19) on switch (45) using screw (17) and new Iockwasher (18).
7.
NOTE
Screw holes between white lens and blackout lens are used when Installing blackout
light partition. Do not use these holes when installing lens retainer (27).
Install two new gaskets (24 and 25) and blackout and white lenses (23 and 26) in lens retainer (9) using lens
8.
retainer (27) and seven screws (28).
Install gasket (4) and metal plate (5) on blackout light Iampholder (46) using two screws (6).
9.
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