TM 9-2350-238-10
Section IV.
OPERATION UNDER UNUSUAL CONDITIONS
SECTION INDEX
Page
BATTLE DAMAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-115
EMERGENCY PROCEDURES, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-115
FORDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-113
NUCLEAR, BIOLOGICAL, AND CHEMICAL (NBC) DECONTAMINATION PROCEDURES . ...2-115
Chemical detection and decontamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-115
Emergency procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-115
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-115
OPERATION IN UNUSUAL WEATHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-108
Extremely cold weather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-110
Extremely dry heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-109
Extremely moist heat, salt air, or sea spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-108
Toxic gas, extreme dust, or dust and sand storms . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2-109
OPERATION ON UNUSUAL TERRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-113
Ice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-113
Mud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-113
Sand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-113
Snow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-113
In addition to normal preventive maintenance
service, special care in cleaning and lubrica-
tion must be observed where extremes of
temperature, humidity, and terrain conditions
are present or anticipated. Proper cleaning
and lubrication of equipment not only are
necessary for proper operation and function-
ing, but also guard against excessive wear of
working parts and failure of equipment. Read
FM 21-306 special instructions for operating
under unusual conditions,
OPERATION IN UNUSUAL WEATHER
EXTREMELY MOIST HEAT SALT AIR, OR
SEA SPRAY
1 Lubricate vehicle at frequent intervals as
prescribed in appendix G.
2 Operation of vehicle at high speeds, on
long hard pulls in Iower gear ratios, or in
soft terrain may cause engine to
overheat. Watch engine temperature
gauge and halt vehicle for a cooling-off
period whenever necessary and tactical
situation permits. Do not turn off engine
- set hand throttle control lever to run
engine at 1,000 to 1,200 rpm and allow
to cool.
3 If engine temperature consistently rises
above 200°F (93°C), check filter bags
4
5
6
7
8
for excessive dust, and if necessary,
clean filter pacs. Refer to page 3-43.
When air filter baskets are removed, in-
spect air separators for clogging. If
clogged, notify unit maintenance
personnel.
Keep vehicle clean and dry.
Inspect vehicle frequently for corrosion,
moisture, and accumulation of fungus
growth. Dry any moisture and remove
any corrosion or fungus growth. Have
unit maintenance personnel prime and
paint any area where paint is cracked or
peeling.
Clean and Lubricate exposed metal sur-
faces and gun bore of machine gun fre-
quently. When machine gun is not in
use, cover surfaces with a film of PL
special or CLP and keep cover in place.
Do not park vehicle in sun for long
periods of time. If no suitable shelter is
available, cover vehicle with tarpaulin.
Tarpaulin should be suspended above
cab surface to allow air ventilation, if
possible.
Keep all doors and cupola covers open
whenever possible to aid ventilation of
vehicle.
2-108
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