ARMY TM 9-6115-639-13
AIR FORCE TO 35C2-3-386-51
MARINE CORPS TM 10155A-13/1
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
2-13. BATTLE SHORT OPERATION.
Generator battle short mode is for emergency operation only. Prolonged
use under this mode could damage the generator set or pose potential
shock hazard to personnel.
The generator set is capable of emergency operation under fault conditions. The BATTLE SHORT
switch (14, Figure 2-3) allows the set to override anticipated system fault shutdowns in order to maintain
operation. The overload short circuit fault cannot be overridden.
b. To operate the set in battle short mode, lift protective cover and place the BATTLE SHORT switch
(14) in the ON position while the generator set is running.
2-14. OPERATION IN UNUSUAL WEATHER.
a. The generator set is designed to operate within a temperature range of -25 to +120F (-32 to +49C).
The set should not be operated in ambient temperatures outside this range.
b. If ambient temperature is below +20F (-6.6C), activate engine preheat system as follows:
(1) Ensure DC CIRCUIT BREAKER (9, Figure 2-3) is pushed in. Ensure EMERGENCY STOP
switch (13) is pulled out. Place the START / RUN / STOP switch (7) in the RUN position.
Place the PREHEAT switch (8) in the ON position. Hold for 10 seconds if temperature is just
below +20F, 20 seconds if temperature is well below +20F.
Continue to hold the PREHEAT switch (8) in the ON position while cranking engine (step (4)).
Release PREHEAT switch once engine has started and reached operating speed.
Do not crank engine for more than 15 seconds. Damage to starter motor
can occur. Wait 15 seconds before attempting to crank again. If engine
does not run after third attempt, refer to Troubleshooting.
Place START / RUN / STOP switch (7) in the START position to crank engine. Switch is
spring loaded and must be held in place. Release switch to RUN position once engine starts.
c. Altitude also plays a role in the performance of the generator set. Refer to the KILOWATT
CAPACITY placard (Figure 1-5) for generator load derating.