TM 9-2350-267-10
OPERATING THE APU - Continued
Electrical Support of Another Vehicle
Under normal conditions, APU generator can supply enough electrical power to operate its
own electrical system and that of another vehicle (ie M109A2 or another M992) which pos-
sesses a compatible electrical system. There are limitations to the generator’s output,
however. When your vehicle’s hydraulic system operates under load, the generator may
occasionally switch off. This is only a temporary situation, and the generator wili automati-
cally switch on when hydraulic pressure decreases.
1. Park your vehicle close enough to the supported vehicle so that the slave ca-
bie can be interconnected at the slave receptacles of both vehicles. if your
M992 is to support a self-propelled howitzer during conveyor operation, posi-
tion your vehicle back-to-back with the howitzer and depioy the conveyor (p
2-148).
2. With the brake pedal depressed,
parking brake lock handle (2).
place the shift iever (1) in N (neutral) and set
WARNING
To avoid personai injury and vehicle damage, turn OFF
the MASTER switch and all other electrical switches in
both vehicles.
3. Shut down vehicle main engine(s). Turn MASTER switches OFF in
both vehicles.
2-120
