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 TM 55-1905-223-24-18-1
d.
Unscrew retaining ring (2) and remove two screws (14).
Remove lamp check push switch (3).
e.
f.
Unscrew retaining ring (11) and remove two screws (16).
Remove horn off push switch (12).
g.
h.
Unscrew collective alarm lens (6).
Remove incandescent lamp (7).
i.
Remove two screws (26) and remove collective alarm indicator light (8).
Unscrew buzzer (10) and remove.
j.
k.
Unscrew two hexagon head screws (17) and remove cartridge fuse cover plate
(18).
l.
Remove cartridge fuses (19).
m.
Remove capscrews (20) and remove relays (21).
Repair at this level of maintenance is by replacement of rotary switch (4, FIGURE
transmitter indicator (1, FIGURE 2-142), lever switch (1, FIGURE 2-143), push
switch (5, FIGURE 2-144), rotary switch (1, FIGURE 2-145), push switches (3, 12,
cartridge fuses (19), and relays (21).
Install relays (21, FIGURE 2-146) and secure with capscrews (20).
a.
b.
Install cartridge fuses (19), replace cover plate (18), and secure with two
hexagon head screws (17).
Screw buzzer (10) into slot in door.
c.
Install collective alarm indicator (8) and secure with two screws (26).
d.
Install incandescent lamp (7) in indicator (8) and replace collective alarm
e.
lens (6).
Install horn off push switch (12).
f.
Secure with two screws (16) and replace retaining ring (11).
g.
Install lamp check push switch (3).
h.
Secure with two screws (14) and replace retaining ring (2).
i.
2-588
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