Piper Cherokee Six - Page 601

Zero output indicated on Open field circuit.
ammeter
regardless
of
RPM
(refer to
alter-
nator system test
procedure)
PIPER
CHEROKEE
SIX
SERVICE
MANUAL
TABLE
X-III. ELECTRICAL SYSTEM
TROUBLESHOOTING
Isolation Procedure
and Remedy
Trouble
Probable Cause
ALTERNATOR
With
master
switch
turned on check for
battery voltage
(12V)
from
ship's
main buss
through
entire
field
circuit to alternator
field terminal. Mea-
sure voltage
from
ground
(-)
to the follow
ing points
(+)
in se-
quence:
buss bar,
out-
put circuit
breaker
(60A),
field
circuit
breaker
(5A), field
terminals of master
switch,
voltage
regu-
lator and
alternator
field terminal.
Interruption
of voltage
through any of these
points
isolates
the
faulty component
or
wire
which
must be re-
placed.
(See
Fig.
10-1)
Open
output
circuit.
With
master switch
turn-
ed
on check for
battery
voltage
(12V)
from
ship's main buss
ELECTRICAL
SYSTEM
Issued:
8/17/72
3D1