c. Keep the gun pointed away from friendly personnel at all times.
d. Do not face the front of the gun at any time. Even when no fuel is being ejected, the incendiary charges of the ignition cylinder can cause severe burns.
e. Keep the gun dry and clean if possible. Avoid getting dirt or foreign matter into the weapon.
f. Avoid rough handling.
g. Wear gloves if available.
h. Carry any extra ignition cylinders only in metal containers.
21. OPENING PRESSURE-TANK VALVE.
The release of pressure into the fuel tank causes a hissing sound. Therefore, open the pressure-tank valve while still out of hearing range of the enemy. Do not, however, open it prematurely because of the possibility of pressure leaks. To prevent frothing of the fuel, keep the tank group in as nearly an upright position as possible when opening pressure-tank valve. Be sure to turn the valve handle all the way in a counterclockwise direction. Stiffening of the fuel hose occurs when the pressure-tank valve is opened.