TM 3-4730-200-15
air stops flowing into the 1-ton container, then close the
b. Connect a low-pressure source of compressed
globe valve.
air to the pneumatic tank valve on the venting assembly.
c. Open the upper angle valve on the 1-ton
d. Close the upper angle valve on the 1-ton
container.
container also.
1
d. Open the /4-inch globe valve on the assembly
11. Adapting M3 Airplane Smoke Tank Filling Line to
and pump air into the 1-ton container until the pressure
Line Filling Adapter
reaches 3 to 5 psi.
a. Hold the nut on the hose side of the M3 airplane
e. Close the upper 1angle valve on the 1-ton
smoke tank filling line union coupling with a standard
container and close the /4-inch globe valve on the
venting assembly.
open end wrench. Uncouple the union coupling by
unscrewing the large nut on the union coupling with a
f. The liquid will flow when the lower angle valve in
second wrench. (Doing this separates the adapter
the 1-ton container is opened.
assembly, retaining valve, pipe nipple, and a union
coupling half as a unit from the hose assembly).
13.
Clearing Clogged Angle Valves or Eduction
Tube of 1-Ton Containers
b. Apply soft graphite grease (GG) to the threads
of the pipe nipple on the adapter assembly threads and
Clogged angle valves or eduction tubes can be
screw the adapter assembly end of the unit (a above)
cleared by forcing compressed air from an external
tightly into the reducing pipe tee (17, fig. 1).
source through the pneumatic tank valve in the line filling
adapter and then through the pneumatic tank valve in
the line filling adapter and then through the clogged
c. Couple the halves of the union coupling. Turn
angle valve or eduction tube.
the M3 hose assembly so that the nozzle points
downward and tighten the union coupling by holding the
Warning
nut on the hose side of the union coupling with a wrench
while tightening the large nut on the union coupling with
The air pressure must be so
a second wrench.
regulated not to exceed 375 psi
Pressure greater than 375 psi will
12.
Starting Flow of Liquid Agent From 1-Ton
blow out the safety plugs in the 1-ton
Container
container.
Caution
When the level of the liquid in a 1-ton container that is
not under pressure falls below the lower angle valve,
When clearing clogged angle valves
pressure must be built up in the 1-ton container to start
or eduction tubes of 1-ton containers
the flow of the liquid.
This is done by forcing
filled with VX or GB-agents, undried
compressed air into the 1-ton container through the
compressed air may be used if the 1-
pneumatic tank valve on the venting assembly.
ton container being cleared is to be
used promptly (within 1 or 2 wk) and
Caution
if the remaining agent is not to be left
in the 1-ton container longer than 2
weeks.
If longer storage is
When transferring VX and GB-agents,
anticipated dried compressed air
undried compressed air may be used
must be used to prevent hydrolysis
if receptacle being filled is to be used
of the agent in the 1-ton container.
promptly (within 1 or 2 wk) and if the
remaining agent is not to be left in
a. Clearing Upper Angle Value or Education Tube.
the 1-ton container longer than 2
weeks.
If longer storage is
(1) Close the upper and lower angle valves
anticipated, dried compressed air
on the 1-ton container and close all globe
must be used to prevent hydrolysis
valves in the line filling adapter.
of the agent in the filled receptacle as
(2) Connect a source of compressed air to the
well as prevent hydrolysis of the
pneumatic tank valve on the venting
agent in the 1-ton container.
assembly (fig. 4).
a. Close the upper and lower angle valves on the
(3) Open the upper angle valve on the 1-ton
1-ton container and close all globe valves on the line
container.
filling adapter.
AGO 5012A
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