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  TM 3-6665-302-34
25
Lockwasher
Resistor
(R5)
13
Heater module
26
Screw
Resistor
(R6)
Post
27
Separator
Resistor
(R9)
Lockwasher
28
Tubing
Tubing
16
Screw
29
Weight assembly
Tubing
17
Switch assembly (A1)
30
Screw
(R2)
Resistor
Thermostat retaining bar
31
Screw
(R3)
Resistor
Washer
32
Resistor (A5R1)
Tubing
20
Lockwasher
33
Resistor (A5R2)
Tubing
Thermostatic switch (S1)
34
Resistor (R1)
Screws
Thermostatic switch (S2)
35
Resistor (R7)
Gasket
23
Tubing
36
Resistor (R8)
Washer
24
Resistor (R4)
. chassis assembly, exploded view -Continued
Figure 321
WARNING
e. Turn assembly upside down and remove
plug (32) and air filter.
Solution in the reservoir assembly is an
irritant. Avoid contact with eyes and
f. Install four screws (39) in mounting holes
mouth. Wash thoroughly with water.
below AIR INLET assembly (14).
(2) Hold detector assembly (1, fig. 3-16)
g. Install three screws (42) and washers (43)
upright, unscrew reservoir assembly (41, fig. 3-
through mounting holes in corners of chassis
17). Allow weight assembly (29, fig. 3-21 ) to
assembly (36).
hang down.
h. Install air filter and tighten plug (32).
CAUTION
i. Install crank (9) and secure with setscrew
Keep weight assembly free from dirt
(8).
after removing reservoir assembly.
j. Dampen outside of two detector cell ports
NOTE
with a few drops of water.
Discard solution in reservoir assembly
k. Position detector cell (37) so that its ports
in accordance with standing operating
are alined with their corresponding fittings in
procedures.
chassis assembly (36). Press detector cell into
(3) Remove tubing (28) and weight as-
place in chassis assembly.
sembly (29) from fluid tube.
l. Center bail (38) on bottom of detector cell
(4) Unscrew separator (27) (counterclock-
(37) and turn lobed nut clockwise until finger-
wise).
tight.
(5) Remove gasket (23) from separator
(27).
(6) Using a lint-free cloth saturated in dis-
3-38. Tubing
tilled or deionized water, wipe solution from mat-
ing threads in chassis assembly (56, fig. 321
).
a. Removal
(1) Remove chassis assembly from case top
b. Installation.
assembly (para 3-36).
NOTE
(2) Remove defective tubing (11, 16, 17,
Keep separator (27, fig. 3-21
), tubing
20, or 21)0
(28), and weight assembly (29) clean
b. Installation.
to prevent contamination.
(1) Attach replacement tubing (11, 16, 17,
(1) Slip gasket (23) over threads on sep-
20, or 21).
arator (27).
(2) Install chassis assembly in case top as-
(2) Slide separator (27) over fluid tube
sembly (para 3-37).
centered in reservoir receptacle of chassis sub-
assembly (50, fig. 321 ). Screw separator (27,
sembly until fingertight.
a. Removal.
(3) Slip one end of tubing (28) over fitting
(1) Remove
bottom case assembly (para
of weight assembly (29).
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