Section IV. OPERATION UNDER UNUSUAL CONDITIONS
When operating vehicle in extremes of temperature, humidity, and terrain conditions, special care in
lubricating and cleaning must be observed.
FM 21-17 contains important instructions on driver selection, training, and supervision. FM 21-17 also
gives driving instructions for operating your equipment under all conditions.
Vehicle armament maintenance procedures are the same as operating under usual conditions. The only difference is to
use Lubricating Oil for Aircraft Weapons (LAW) in cleaning and lubricating to ensure proper functioning of your M2 0.50-
caliber machine gun.
STARTING MAIN ENGINE IN COLD WEATHER
Cold-weather starting procedures are to be used at O0F (-17.8°C) and below. However, these procedures
also apply when vehicle won't start at 40°F (4.40C). Glow-plug switch and starter switch must be activated
at the same time.
Start the APU (p. 2-216).
After the APU has been running for 3 minutes, turn ON APU Generator switch (1).
After the APU has been running for 15 minutes, turn OFF APU Generator switch (1) and check BATTERY-
GENERATOR indicator (2).