41. WET CONDITIONS.
The M2-2 flame thrower may be carried and fired successfully in the
rain or even after short immersion in water. After use when wet, it
should be dried to prevent rusting, cleaned, and lubricated. (Pars 49
and 55) Areas where paint has worn off should be touched up with fresh
paint. The weapon should be stored in a dry place. Moisture must not be
allowed to enter fuel, ingredients of fuel, or containers of ignition
cylinders.
42. DUST AND MUD.
Keep all possible dust, earth, and mud out of the flame thrower;
particles may interfere with the operation of spring case, valves,
bearings, and pressure regulator. Store weapons and auxiliary equipment
in closed chests and boxes when not in use. (Par 77) Clean before use.
(Pars 51 and 52)
43. HEAT.
A hot climate or exposure to the sun makes the fuel thinner when in
containers. Thin fuel has shorter range; it is largely consumed in the
air before it reaches usual effective ranges. Where the climate is
torrid, less gasoline or other thinning agents should be used in a fuel
blend than normally. (Pars 34 through 36)
44. COLD.
Cold weather reduces total heat produced at target but seldom enough
to seriously lower value of a firing mission. Incendiary effects may
be decreased because materiel is less flammable when cold. The weapon
may be used at temperatures as low as minus 20 degrees Fahrenheit. To
improve ignition, use more gasoline in fuel than normally. (Pars 34
through 36)
45. WIND.
Flame throwers should not be fired into strong head winds or across
strong side winds. (Par 23)