For the M9A1-7, it's not just having a jerry can of thickened fuel.
https://books.google.com/books?id=z6...hrower&f=false
You'll need fuel and thickener, an air compressor, a source of compressed nitrogen, along with various gauges, hoses and couplings. A single commercial cylinder of nitrogen at 1,800 psi can pressurize the pressure tank on an M9A1-7 flamethrower twice (the weapon's tank should be at 1,700 psi minimum when ready to use). The commercial cylinder is attached to the weapon pressure tank by the "filling line assembly", in essence a rubber hose with gage and valves, along with safety plugs, etc.
Then comes the process of putting fuel in the flamethrower's two fuel tanks.
Preparation for Fuel Filling from 5 Gallon Gasoline Cans.
Connect the 5 gallon gasoline can to a pressure source (a compressor, for example) as follows:
- Replace the cap on the 5 gallon gasoline can with a fuel transfer cap
- Screw the tube reducer 3 into one end of the 8 foot rubber hose
- Screw the quick disconnect coupling half into the tube reducer.
- Connect the quick disconnect coupling half to the male coupling half on the fuel transfer cap
- Connect the other end of the 8 foot rubber hose to the pressure regulator
- Screw the tube reducer into the fitting of the pressure regulator
- Screw the check valve into the tube reducer
- Connect the valve assembly of the 6 foot rubber hose to the check valve
- Connect the assembled line to a the AN-M4 compressor: Connect the charging hose assembly to the 6 foot rubber hose; Connect the quick disconnect coupling end of the charging hose to the male coupling on the compressor.
Filling Portable Flamethrower from 5-Gallon Gasoline Cans- Remove the filling plugs from the fuel tank filling holes. Install the fuel transfer cap into a 5 gallon gasoline can of fuel and connect the cap to a pressure source. Invert the 5 gallon gasoline can and insert the fuel outlet pipe of the fuel transfer cap in the fuel tank filling hole
- Set the pressure regulator at zero pressure by turning the adjusting screw counterclockwise
- Supply air to the pressure line (by starting the air compressor
- Increase the air pressure delivered by the pressure regulator by slowly turning the adjusting screw clockwise until the pressure gage reads between 3 and 5 psi
- Observe the fuel level in the tanks through the filling holes. Both tanks must be filled to within approximately 2 inches of the top thus leaving the proper void. As soon as the fuel reaches this level stop fuel flow by tilting the gasoline drum down.
Then you need M1 ignition cylinders: each contains five incendiary igniter charges. Each igniter burns for 8 to 12 seconds, to ignite the fuel as it is discharged from the flame gun.
For a far less safe and effective system, you could use 1800 psi air (regular atmosphere, that is) instead of nitrogen. You could use regular gasoline instead of thickened fuel.
You could volunteer for a safer job!
"Have fun and flame on!"
--
Michael B.