Section
VII
Systems
Description
BEECHCRAFT
Duchess
76
STARTER ENGAGED WARNING LIGHT (ME-333, ME-
346 AND AFTER)
The warning light placarded STARTER ENGAGED will
illuminate whenever electrical power
is
being supplied to
the starter.
If
the light remains illuminated after starting, the
starter relay has remained engaged and loss of electrical
power may result. The battery and alternator switches
should
be
turned off if the light remains illuminated after
starting. If the light does not illuminate during starting, the
indicator system is inoperative and the loadmeters should
be monitored to ensure that the starter does not remain
energized after starting.
EXTERNAL POWER
The external power receptacle is located either on the right
(ME-1 through ME-440) or
on
the
left (ME-441 and after)
side of the fuselage, just aft of the cabin area. A negatively
grounded external power source may
be
used for engine
starting
or
for ground electrical system checks. Airplanes
equipped with 14-volt systems (ME-1 through ME-182)
require a power unit setting of 14 volts,
::'::
.2 volts. Airplanes
equipped with 28-volt system (ME-183 and after) require a
power unit setting of 28 volts,
::'::
.2 volts.
CAUTION
On 14-volt airplanes, the
power
pin for external
power is connected directly to the battery and
continually
energized.
Turn
off
alternator
switches, all electrical and avionics switches,
and turn
on
battery switch before connecting the
auxiliary power unit plug. Assure correct polarity
(negative ground) before connecting auxiliary
power unit.
7-30
January
1982
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