Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 174

SECTION 7 CESSNA
MODELT210M
AIRPLANE
&
SYSTEMS DESCRIPTIONS
nator. The red warning light will then turn on, indicating to the pilot that
the alternator is not operating and the battery is supplying all electrical ",-...,,
power.
The over-voltage sensor may be reset by turning off the avionics power
switch and then turning the master switch off and back on again.
If
the
warning light does not illuminate, normal alternator charging has
resumed; however,
if
the light illuminates again, a malfunction has
occurred, and the flight should be terminated as soon as practical. In either
case, the avionics power switch may be turned on again if required.
The warning light may be tested by niomentarily turning off the
ALT
portion of the master switch and leaving the BAT portion turned on.
CIRCUIT BREAKERS AND FUSES
Most of the electrical circuits in the airplane are protected by "push-to-
reset" type circuit breakers mounted on a single circuit breaker panel on
the left cabin sidewall between the forward doorpost and the instrument
panel. Four "pull off" switch type circuit breakers on this panel protect the
landing gear system hydraulic pump motor, wing de-ice system, electric
elevator trim system, and the autopilot pitch and roll actuators. All of the
avionics circuits are protected by circuit breakers grouped together in the
lower portion of the circuit breaker panel and also by a rocker-type circuit
breaker switch labeled A VN PWR. Fuses protect the cigar lighter circuit,
the battery contactor closing circuit (when used with external power), and
the clock and flight hour recorder circuits.
GROUND SERVICE PLUG RECEPTACLE
A ground service plug receptacle may be installed to permit the use of
an external power source (generator type or battery cart) for cold weather
starting and during lengthy maintenance work on the airplane electrical
system. The receptacle is located under a cover plate, on the lower left side
of the cowling.
NOTE
If
no avionics equipment is to be used or worked on, the
avionics power switch should be turned off.
If
maintenance
is required on the avionics equipment, it is advisble to
utilize a battery cart external power source to prevent
damage to the avionics equipment by transient voltage. Do
not crank or start the engine with the avionics power
switch turned on.
Just before connecting an external power source (generator type or
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