OPERATING THE APU (continued)
Continue charging batteries until charge indicator in supported vehicle reads well into normal range.
Turn APU GENerator switch (6) to OFF, and turn APU FUEL SHUT OFF switch (7) to OFF to shut down APU.
To avoid Injury, turn OFF MASTER
switches In both vehicles before
disconnecting slave cable.
Turn MASTER switch to OFF in each vehicle.
Disconnect and stow slave cable.
Charging Dead Batteries with the APU
This procedure applies only to vehicles with dead batteries. If any lights
or gages function when a vehicles MASTER switch is ON, batteries are
low, not dead. To charge low batteries, see page 2-125.
Before trying to charge batteries, do the following:
Check batteries for broken cases or cables, severe corrosion, and other damage. If batteries are
damaged, notify Unit maintenance.
Check electrolyte level (refer to TM 9-6140-200-14). Add distilled water as necessary.