Decontaminating and Cleaning.

TM 3-1040-214-12

down to fill the diffusion tube with solution.

disconnect the diffusion tube nut (8) from the safety

valve adapter (9).

(20) Submerge the tank group

(7) Remove and retain the pressure regulator

decontaminating solution for 30 minutes.

and attaching parts.

b. Decontaminating and Cleaning.

(8) Disconnect the tube assembly (16) from

(1) After 30 minutes have elapsed, remove

the inlet adapter (17).

the tank group from the solution.

(9) Using pressurized air (between 25 psi and

(2) If required, scrub the exterior surfaces of

35 psi), clean the air passages in the disconnected parts

the agent tank and carrier parts to remove any visible

of any agent (or T1 talc) as follows:

agent.

(3) Remove tape from both pipe and cap

WARNING

assemblies (4). Remove both pipe and cap assemblies.

Never stand in the way of pressurized

With a wire clean the cap holes (fig. 4-6).

air.

(4) Using a brush, clean all threads of any

foreign deposits.

(10) Apply air pressure to the inlet adapter (17)

located on the bottom of the pressure regulator (18).

(5) Dump the solution in the agent tanks into

This operation will clean the air passage in the pressure

a chemical disposal system.

regulator (18) and safety valve (11).

(6) Remove plug from diffusion tube.

(11) Apply air pressure to the opening in the

(7) Flush the interior of the agent tanks and

bottom of the safety valve adapter (9). This operation

all exterior surface including the carrier parts with clean

will clean the air passage in the safety valve adapter (9)

water.

and hose assemblies (2).

(8) Dry the parts with a clean cloth and

(12) Open the shutoff valve (22). Apply air

thoroughly dry with pressurized air (5 to 10 psi).

pressure to the end of the vent tube (21). This operation

Thoroughly dry the interior of the agent tanks to prevent

will clean the air passage in the shutoff valve (22) and

corrosion. Minor internal surface corrosion in the agent

diffusion tube adapter (9).

tank is acceptable.

(13) If air cannot be detected coming out of the

(9) When all parts are cleaned and dry,

diffusion tube adapter (9), perform the following

recheck possible deposits of agent by sniffing.

operation: Clean adapter air passage with a wire and

required, repeat decontaminating procedure.

perform step (12) above.

c. Assembly.

(14) Obtain a plug from the M27 service kit

(TM 3-1040-221-12).

Close the open end of the

(1) Install pipe a d cap assemblies (4) and

diffusion tube (5) with the plug.

tighten.

(15) Remove one pipe and cap assembly (4).

(2) Position the tube assembly (16) as shown

in figure 4-5. Connect the tube assembly (16) to the inlet

(16) Pour decontaminating solution (para 4-

adapter (17) and tighten.

13a) into the agent tank. Fill to approximately 2 inches

from the top.

(3) Hold the pressure regulator in a position to

tighten the diffusion tube nut (8) to the adapter (9).

(17) Install the pipe and

cap

assembly

(removed in (15) above) and tighten.

(4) Cross both hose assemblies (2) and

connect each hose assembly quick-disconnect coupling

(18) Tape and seal open ends on the pipe and

half (3) to the pipe and cap assemblies (4).

cap assemblies (4).

(5) Connect the carrier pack to the frame with

(19) Shake the agent tanks several times to

the cotton cord.

agitate the solution in the tanks. Turn agent tank upside

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