(7) If a straight pipe-to-tube adapter with
(5) Connect the valve end of the 6-foot
-13 UNC-2A by -18 national pipe
rubber hose assembly to the check
threads it not installed in the hole in
valve body.
the center of the testing gage adapter,
(6) With the rubber tubing disconnected
install it.
from the tank adapter, open the pres-
(8) Connect the 6-foot rubber hose assem-
sure gage bleeder valve two turns until
bly to the straight pipe-to-tube adap-
test fluid begins to bleed out of the
ter in the center of the testing gage
bleeder valve; then close the bleeder
adapter.
valve and connect the rubber tubing
Fill the pump tank with test fluid and
from the small tube to the tank adap-
install the tank adapter.
ter.
Connect the large tube and rubber
(7) Fill the small tube with test fluid and
tubing to the tank adapter.
bleed the trapped air from the test set.
Notify the operator that the test set is
Fill the large tube with test fluid. and
ready to use in performing the test
open the gage bleeder valve two turns
procedure prescribed in paragraph 14.
until test fluid bleeds out. Close the
e. High Pressure Sphere Assembly From the
bleeder valve. Bleed the trapped air
M9 Tank Group.
from the test set by operating the
(1) Remove the hi-pressure valve assem-
pump several times. Notify the op-
bly as a unit from the high pressure
erator that test set is ready to use in
sphere assembly and fill the high pres-
performing the test procedure pre-
sure sphere assembly with test fluid.
scribed in paragraph 14.
(2) While holding the hi-pressure valve
c. Agent Tank From the Tank Group of the
assembly with the open end up, install
M3 Riot Control Agent Disperser. The pro-
the hi-pressure valve on the high pres-
cedure for connecting the agent tank to the test
sure sphere assembly.
set is identical to the procedure for connecting
(3) Remove the safety disk plug assembly
the fuel tank prescribed in b. above except that
from the hi-pressure valve body and
one filler plug must be replaced by the filling
install the ABC-M9-7 high pressure
p l u g assembly (FSN 1040-784-9218). Per-
valve solid safety plug assembly in its
form the procedures prescribed in b above to
place ((8), fig. 3).
connect the agent tank.
(4) For volumetric testing attach the 6-
d. Pressure Tank From the M3A1 Tank
foot rubber hose assembly directly to
Group and/or the M3 Riot Control Agent Dis-
the quick-disconnect coupling half
perser Tank Group.
threaded end and then connect the
(1) Before connecting the pressure tank
quick-disconnect coupling half to the
to the test set remove the pressure
valve plug as shown in figure 9.
tank valve as a unit (while the pres-
Note. Instructions in d (5) and (6) above
sure tank is fastened to the bench).
are applicable to hydrostatic testing. This
Note. Remove the pressure tank valve as
separation of steps allows for pressure test-
outlined in TM 3-1040-204-14 paragraph
ing of the pneumatic hose assembly as shown
6-7.
in figure 10.
(2) Fill the pressure tank with test fluid
(5) Attach the pneumatic hose assembly
while holding the tank in an upright
to the valve plug on the hi-pressure
position and screw the pressure tank
valve assembly. Connect the pressure
valve back on the pressure tank draw-
bottle hose adapter to the other end
ing it up tight
of the pneumatic hose assembly.
(3) Close the valve handle to prevent loss
(6) Connect the 6-foot rubber hose assem-
of test fluid from the pressure tank.
bly to the open end of the pressure
bottle hose adapter.
(4) Temporarily remove the check valve
from the pressure tank valve. Install
(7) With the rubber tubing disconnected
the check valve body ((10), fig. 3) in
from the tank adapter, open the gage
the pressure tank valve.
bleeder valve two turns until test fluid
AGO
8359A
13
