Using Commercial Air Cylinder - TM-3-1040-221-120013

cylinders must have a minimum pressure of 600 psi.

WARNING

One or more of the cylinders must have a pressure of at

Open glove valve with caution. The

least 1,800 psi. If available, at least two cylinders, and

oil, water, and air emulsion released

preferably four or more, should be used together to

under pressure can cause Injury to

acquire maximum pressure.

personnel.

b. Charging Capacity. Full commercial air cylinders

can charge the approximate number of pressure tanks

(5) When the pressure tank has been charged to a

listed below:

pressure of 2,000 psi, open the globe valve one-half turn

No of full

No (approx ) of

to permit the high- pressure air to escape and blow down

commercial

pressure tanks that

the oil, water, and other material accumulated in the

are cylinders

can be charged

separator.

1 -------------------------------------------2

(6) Stop the engine.

2 -------------------------------------------6

d. After-Charging Procedure.

4 -------------------------------------------24

(1) Open the bleeder valve (10) one- fourth turn.

5 -------------------------------------------36

(2) Disconnect the rubber-hose valve assembly (34,

6 -------------------------------------------48

fig. 2) from the pressure tank check valve (9, fig 6)

Replace and tighten the check valve cap (8)

c. Apparatus. Use two 6-foot rubber hose as-

6. Using M1A1 Compressor

semblies (36, fig. 2) and a filling line assembly (27) to

Connect the 6-foot rubber hose assembly (2, fig.

charge two M2A1-7 flamethrower pressure tanks from

7) between the M2A1-7 flamethrower (1) and the

two commercial air cylinders.

charging line adapter on the MIA1 compressor. Charge

Use one 6-foot rubber hose assembly (36) and cap the

the pressure tank (TM 3-1040- 203-12).

unused safety plug assembly (25).

7. Using Commercial Air Cylinder

d. Attaching Filling Lines to Commercial Air

a. Volume and Pressure Full commercial air

Cylinders. Charge two M2A1-7 flamethrower pressure

cylinders contain 200 to 220 cubic feet of air. All

tanks from two commercial air cylinders (fig. 8) as

follows:

(1) Remove the protection caps from the valves of

the cylinders.

(2) Immediately before coupling a fitting

1 M2A1-7 flamethrower

2 Hose assembly

Figure 7. Charging M2A1-7 flamethrower with M1A1 compressor.