Piper PA-32RT-300T User Manual

LANCE
II SERVICE
MANUAL
Alligator
Clips
8
Amp
Landing
Lights
as
required
Figure
11-1.
Lamp-Bank
Load
11-5.
BENCH
TESTING
THE
ALTERNATOR.
11-6.
FIELD
CURRENT
DRAW.
Connect
a test
ammeter
in
series
between
a
12-volt
battery
positive
post
and
the
alternator
field
terminal.
(Refer
to Figure
11-2.)
Connect
a
jumper
wire
to a
machined
surface
on
one
of
the
alternator
end
shields
(ground)
and
to
the
negative
battery
post.
The
reason
for
connecting
to
the
machined
surface
is
to
ensure
a good
electrical
connection.
The
end
shields
are
treated
to
oppose
corrosion.
The
material
used
to treat
the
end
shields
is
not
a good
electrical
conductor.
Observe
the
ammeter
to
determine
the
current
flowing
through
the
rotor
coil
and
connected
circuit
and
record
the
amount.
Slowly
rotate
the
rotor
with
the
pulley
while
watching
the
meter.
The
current
will
be
a little
less
while
ro-
tating
the
rotor
than
when
stationary.
However,
if the
slip rings
are clean
and
the
brushes are making
good contact,
slight
fluctuation
will
be
normal
due
to
variation in turning speed when oper-
ated
by
hand.
The
current
draw
should
not
be
less than
2.3-amperes nor more than
2.7-amperes.
A
reading
of
less
than
2.3-amperes
indicates
high
resistance
due
to poorly
soldered
coil
leads
at the
slip
rings,
dirty,
oily slip
rings
or
poor
brush
contact.
A
reading
higher
than
2.7-amperes
indicates
shorted
Figure
11-2.
Checking
Field
Current
coil
windings.
Issued:
1/3/78
ELECTRICAL
SYSTEM
2F18

Piper PA-32RT-300T Specifications

General

Brand	Piper
Model	PA-32RT-300T
Category	Aircrafts
Language	English