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Page Title: Figure 2-7. M43 detector unit employing a BB501/U battery and M168 cable.
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TM 3-6665-225-12
1
M43 detector unit
6 Cap
2
24 VDC INPUT receptacle
7 Connector
3
Connector
8 Cap
4
Cap
9 BB501/U battery
5
M168 cable
Figure 2-7. M43 detector unit employing a BB501/U battery and M168 cable.
pared solution reservoir assembly.
JUST knob (5, fig. 2-1), rotate it fully counterclock-
(9) Center new reservoir assembly under weight
wise, and release it.
assembly and screw reservoir assembly into moun-
(13) Press the HORN VOL-BATTERY TEST
ting hole in detector assembly. Insure tight seal by
knob (6) and check that the meter (1) indicates 24
turning reservoir assembly D-ring clockwise.
minimum.
(10) Check that seal (1, fig. 1-4) is correctly
(14) If an M10 power supply is used, set the
seated in groove around top of bottom case assem-
power switch (3, fig. 2-2) to OFF. Press the HORN
bly. Assemble detector unit assembly (6, fig. 1-2) to
VOL-BATTERY TEST Knob (6, fig. 2-1) and check
bottom case assembly (9) and secure clamping
that the meter (1) indicates 24 minimum (standby
catches (12).
battery voltage). Set the power switch (3, fig. 2-2) to
NOTE
the correct voltage position. Turn the annunciator
If M43 detector unit is to be backpacked,
(8) clockwise, then fully counterclockwise.
position bottom case assembly (9, fig. 1-2)
(15) Unscrew RAINSHIELD assembly (1, fig.
so that instruction plate (3, fig. 1-4) is on
1-3) from handle (2). Pull rainshield (13) from
the side opposite the 24 VDC INPUT con-
adapter (14). Screw rainshield (13) into handle. Un-
nector (11, fig. 1-2).
screw plug (1, fig. 2-6) from AIR INLET assembly
(11) Connect power source connector to 24
cover (4). Screw adapter (2, fig. 2-8) into cover (3).
VDC INPUT connector (11, fig. 1-2). M43 detector
(16) Remove FLOWMETER (3, fig. 1-3) from
unit horn (2, fig. 1-2) will sound in approximately
handle (2). Insert and twist FLOWMETER firmly
15 minutes.
clockwise into top of AIR INLET assembly cover (4,
(12) When horn sounds, press the ZERO AD-
fig. 2-6). Press down on top of FLOWMETER. If
2-12
Change 2

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