TM 5-3820-239-15
b. Coat exposed ferrous metal surfaces with
standard issue rustproofing material if avail-
standard issue rustproofing material if avail-
able, or cover parts with a light film of grease.
d. When the unit is not in use, cover or plug
able, or cover parts with a light film of grease.
all openings to prevent salt air seepage into
internal parts.
2-18. Operation in Salt Water Areas
a. Avoid contact with salt water as much as
2-19. Operation at High Altitudes
possible since it is highly corrosive. Wash with
Since air pressure decreases with increasing
fresh water to remove salt.
altitude, the following air consumption multi-
b. Exercise extreme care to prevent salt wa-
pliers are provided for various altitudes in
ter or salt particles from entering lubricant
containers, as salt retards the rust preventive
justed. The following are based on a multiplier
effect and increases the corrosive effect of
of 1.000 at sea level (0 feet).
a. 1,000 ft; multiplier 1.032
b. 2,000 ft; multiplier 1.065
c. Paint exposed metallic surfaces if paint
c. 5,000 ft; multiplier 1.174
has been chipped off or otherwise removed.
Coat exposed ferrous metal surfaces with
d. 10,000 ft; multiplier 1.391