Attaching Filling Line to Commercial Air Cylinder

(12, fig. 3), and filling line assembly (27, fig. 2) to charge

rubber hose until the pressure in the hose is released.

the ABC-M9-7 or M9A1-7 flamethrower high-pressure

(4) Close the bleeder valve in the rubber

sphere from two commercial air cylinders. Cap the

hose.

unused safety plug assembly (25) of the filling line

(5) Disconnect the high-pressure sphere from

assembly.

the rubber hose.

c. Attaching Filling Line to Commercial Air

g. Attaching Two Filling Lines to Four Commercial

Air Cylinders. If many high-pressure spheres must be

Cylinders.

(1) Remove the protection caps from the

charged, combine the filling line assemblies (27, fig. 2)

valves of the cylinders.

on two or more kits for more efficient charging. An

(2) Immediately before coupling a fitting to a

additional metal hose is provided in each kit for

commercial air cylinder, open a valve for an instant to

connecting two filling line assemblies. When connecting

blow out dirt.

two filling line assemblies, remove one pipe plug from

(3) Place the cylinders side by side with both

each assembly and screw the metal hose into the open-

outlets facing the same direction. (If the ground is not

ings from which the pipe plugs were removed The

level enough for the cylinders to stand up side by side,

procedure for charging is similar to the one used for two

lay them on the ground with the outlets UP.)

cylinders (e above). Air is taken first from the cylinder

(4) Connect the pressure cylinder adapters

with the lowest pressure and last from the cylinder with

(19) from the filling line assembly to the air cylinders.

the highest pressure.

h. Charging Two High-Pressure Spheres with

Connect the filling line assembly to the pressure cylinder

adapters (19)Do not kink or bend the metal hose.

Commercial Air Cylinders. To charge two high-pressure

Cylinders must be close enough together to prevent

spheres at one time, set up a second charging line as

strain on the metal hose. Be sure that one safety plug

follows:

assembly (25) is closed with the safety plug. Blow dust

(1) Connect a 6-foot rubber hose assembly to

out of the filling line assembly (27, fig. 2).

a coupling nut on the filling line assembly.

(5) Connect a 6-foot rubber hose to the other

(2) Screw the tube reducer (7, fig. 3) into the

safety plug assembly on the filling line assembly.

valve assembly on the rubber hose.

d. Attaching Hose Assembly (36, fig. 2) to

(3) Screw the charging hose assembly on the

High-Pressure Sphere.

Follow directions given in

tube reducer.

paragraph 10b.

(4) Close the high-pressure sphere valve (2,

e. Charging. Charge one sphere by using two

fig. 10).

commercial air cylinders as follows:

(5) Disconnect the pressure hose (1)' from the

(1) Close both filling line valves on the filling

plug on the high-pressure sphere valve.

line assembly.

(6) Connect the quick-disconnect end of the

(2) Open the high-pressure sphere valve (2,

charging hose assembly to the plug on the high-pressure

fig. 10).

sphere valve.

(3) Open the air cylinder valves.

(7) Open the high-pressure sphere valve.

i. Proper Pressure.

(4) Read the gages on the filling line

assembly to determine which air cylinder has the lower

(1) If a filling line leaks, wrench tighten the

pressure. Open the filling line valve at the gage showing

packing nut.

the lower pressure and fill the high-pressure sphere to

(2) When the highest pressure shown on the

the pressure shown by the gage. Close the filling line

gage (1, fig. 8) is less than 1,700 psi, close both cylinder

valve. Open the other filling line valve and fill the high-

valves (2) and high pressure sphere valve and bleed the

pressure sphere until it reaches a pressure of at least

pressure from the rubber hose by opening the bleeder

1,700 psi as shown by the gage on the filling line

valve. Close the filling line valves (3. Remove the

assembly.

cylinder having the lowest pressure and replace it with a

f. After-Charging Procedure.

fully charged cylinder to complete the charging operation.

(1) Close the high-pressure sphere valve.

With chalk, mark the lowest pressure on the removed

(2) Close the filling line valves.

cylinder.

(3) Open the bleeder valve on the 6-foot