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electrical load is placed on the battery.
alternator switch off will reduce battery power low enough to open the
battery contactor, remove power from the alternator field, and prevent
alternator restart.
AMMETER.
The ammeter indicates the flow of current, in amperes, from the al
ternator to the battery or from the battery to the aircraft electrical sys
tem.
When the engine is operating and the master switch is "ON, " the
ammeter indicates the charging rate applied to the battery.
the alternator is not functioning or the electrical load exceeds the output
of the alternator, the ammeter indicates the discharge rate of the battery.
OVER-VOLTAGE
The aircraft is equipped with an automatic over-voltage protection
system consisting of an over-voltage sensor behind the instrument panel
and a red warning light, labeled "HIGH VOLTAGE", below the engine
instrument cluster.
In the event an over-voltage condition occurs, the over-voltage sen
sor automatically removes alternator field current and shuts down the
alternator.
The red warning light will then turn on, indicating to the
pilot that the alternator is not operating and the aircraft battery is supply
ing all electrical power.
The over-voltage sensor may be reset by turning the master switch
off and back on again.
alternator charging has resumed; however, if the light does illuminate
again, a malfunction has occurred, and the flight should be terminated as
soon as practical.
The over-voltage warning light may be tested by momentarily turning
off the "ALT" portion of the master switch and leavi ng the "BAT" portion
turned on.
CIRCUIT BREAKERS AND FUSES.
ost of the electrical circuits in the airplane are protected by "push
to-reset" circuit breakers mounted on the instrument panel.
to this are the battery contactor closing (external power) circuit, and the
optional clock and flight hour recorder circuits which have fuses mounted
near the battery.
SENSOR
AND
.
If the warning light does not illuminate, normal
Also, the cigar lighter is protected by a manually
Continued operation with the
WARNING
LIGHT.
In the event
Exceptions
2-5
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