Piper Cherokee Six - Page 608

PIPER CHEROKEE
SIX SERVICE
MANUAL
TABLE
X-III.
ELECTRICAL
SYSTEM TROUBLESHOOTING
(cont.)
Isolation Procedure
and Remedy
Trouble
Probable Cause
Excessive
ammeter
fluctuation.
(cont.)
High field circuit
resistance.
If problem
persists,
jump across
terminals
of the
following
com-
ponents
one
at a time
until the faulty unit
is
isolated.
a. Field 5 amp (al-
ternator)
circuit
protector.
b. Alternator half
of master switch.
c. Overvoltage
relay.
Defective
voltage
regulator.
STARTER
Replace voltage regu-
lator.
Motor fails
to operate.
Low battery charge.
Check
and recharge if
necessary.
Defective
or improper
wiring
or
loose
connections.
Defective starter
solenoid or con-
trol switch.
Binding.
worn.
or im-
properly seated
brush, or brushes
with excessive side
play.
Refer
to electrical
wir-
ing diagram and check
all wiring.
Replace
faulty
unit.
Brushes
should
be a free
fit in the brush boxes
without
excessive
side play.
Binding
brushes and brush
boxes
should be
wiped
clean
with a gasoline
(undoped)
moistened
cloth.
A new
brush
should be run in until
at least
50 percent
seated;
however,
if
ELECTRICAL
SYSTEM
Revised:
7/28/75
3D8