OPERATING THE APU - Continued
Check BATTERY indicator in each vehicle at least once
per hour. If charge indicator needle (6) drops below half-
way in yellow range (7) in either vehicle, start both main en-
gines. Allow engines to run until charge needles move into
normal range. If indicators show low charge, do not shut
down APU until both main engines are started.
To stop this operation, turn APU GENerator switch (5) OFF and turn OFF
the APU FUEL SHUT OFF switch (8).
To avoid injury, turn MASTER switches OFF in both
vehicles before disconnecting slave cable.
Turn MASTER switch OFF in both vehicles.
Disconnect and stow cable.