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  TM 3-6665-302-34
(2) Position grille mounting plate assembly
wiring harness, identification plate, and battery
(15) over mounting holes in top panel (37).
retainer assembly.
(3) Install packings (16), washers (17),
3-62. Disassembly
grille (18), and screws (19).
(4) Hold screws (19) in position and turn
are free from housing (5).
assembly on its side.
(5) Install washers (24), loudspeaker (25),
b. Remove chassis assembly (1) from housing
terminal lugs (26), lockwashers (27), and nuts
(5).
(28).
3-63. Assembly
(6) Hold nuts (28) and tighten screws (19),
being careful not to let terminal lugs (26) turn.
housing (5).
(7) Solder tagged wires to loudspeaker (25)
terminals.
b. Secure by tightening four screws (3).
(8) Coat soldered connections with sealant
3-64. Gasket
from coating kit (item 6, table 1-1).
a. Removal.
(9) Assemble M42 alarm unit (para 3-63).
(1) Disassemble M42 alarm unit (para 3-
62).
3-66. Indicator Light
(2) Remove damaged gasket (30, fig. 3-26)
and scrape adhesive from panel (37).
a. Removal.
b. Installation.
(1) Disassemble M42 alarm unit (para 3-
62).
(1) Secure gasket (30) to panel (37) with
adhesive (item 9, table 11).
(2) Tag and unsolder wires from indicator
light (4) terminals.
(2) Assemble M42 alarm unit (para 3-63).
(3) Remove lens (6) and lamp (5) from
indicator light (4).
Plate
(4) Hold body of indicator light (4) and
unscrew nut ( 4B ) securing it to the panel (37).
a. Removal.
(5) Remove nut (4B), lockwasher (4A), and
indicator light (4) body from panel (37 ).
(1) Disassemble M42 alarm unit (para 3-
62).
b. Installation.
(2) Tag and unsolder wires from loud-
(1) Insert indicator light (4) body (with
speaker (25, fig. 3-26) terminals.
Iockwasher (4A) and nut (4B ) removed) through
panel (37).
CAUTION
Hold terminal lugs (26) when removing
(2) Install lockwasher (4A) and nut (4B)
nuts (28 ) to prevent terminal lugs from
on indicator light (4) body and tighten nut
turning and damaging capacitors (9).
(4B).
(3) Hold nuts (28) and unscrew screws
(3) Solder tagged wires to indicator light
(4) terminals. Coat soldered connections with
(27).
sealant from coating kit (item 6, table 1-1).
(4) Remove screws (19), grille (18), wash-
(4) Install lamp (5) and lens (6).
ers (17 ), packing (16), and mounting plate as-
sembly (15) from panel (37).
(5) Assemble M42 alarm unit (para 3-63).
(5) Remove loudspeaker (25) and washers
(24).
3-67. Circuit Card Assembly
b. Installation.
a. Removal
(1) Apply a thin coating of silicone adhe-
sive (item 10, table 1-1 ) to underside of mount-
ing plate assembly (15).
62).
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