Piper PA-32RT-300T User Manual

LANCE
II SERVICE
MANUAL
11-14.
TESTING
STATOR
COILS
FOR
GROUND.
The
stator
coils
are
insulated
from the
core.
A break
in
the insulation
allowing
the
bare wire
to
touch the
core
will ground
the
coil and
result in
no output.
To
test the
stator
for a ground
(end
shields
separated),
lift
the stator
away
from
the
end shield
and
place
wooden
blocks
approximately
.50
inch thick
between
the stator
and the shield
to keep
them separated.
Using
a 110volt
test
lamp, place
one
test probe
on
the core
and the
other
test probe
to
one of
the rectifier
leads,
making
certain
to
have good
electrical
connections
at both
test probes.
The lamp
should not
light. If
the lamp lights,
it
is an indication
that
the coil
windings
are
grounded
to
the core
and
a replace-
ment
of
the stator
is
required.
11-15.
TESTING
ALTERNATOR
CAPACITORS.
Capacitors
are
used in
connec-
tion with
alternators
to
suppress
any transient
peak voltage
that
may occur.
It
is essential
therefore,
to test
the capacitor
when
servicing
the
alternator.
This is
especially
true
where
diode rectifiers
test open
or short
circuited.
The
capacitor
is connected
to
the inner
end of the
alternator
"BAT"
terminal
screw
and to
the inner surface
of the
rectifier end
shield (ground).
Connect
the capacitor
tester to
the alternator
'BAT" terminal
screw
and the
disconnected
ground
lead.
CAUTION
Do not allow thetester
probe or clips to touch
the end
shield or the rectifier
leads while the test
is in pro-
gress
or damage
to the
rectifiers
may occur.
The specified capacity
for these alternators
(capacitor
part of terminal
screw) is .5 ±
1 MFD (min.).
Replace
capacitors
with
low capacity,
shorted
or with
high series
resist-
ance.
Issued:
1/3/78
ELECTRICAL
SYSTEM
262

Piper PA-32RT-300T Specifications

General

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