Piper SARATOGA PA-32-301 Maintenance Manual page 171

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
CHART 2401. TROUBLESHOOTING (ALTERNATOR) (cont)
Trouble Cause
Remedy
Battery installed with re-
versed polarity. (cont)
Battery charged backwards.
Remove battery. Connect
load such as landing light
lamp or similar load and dis-
charge battery. Recharge
with correct polarity and test
each cell for signs of damage
due to reversed charging.
- NOTE -
This type of condition can
only occur in a case where a
discharged battery has been
removed from the airplane
and put on a charger with the
polarity reversed. This re-
versal in polarity cannot
occur in the airplane due to
any fault in the alternator
system.
Excessive ammeter fluctua-
tion.
Excessive resistance in
field circuit.
Check all connections and
wire terminals in field cir-
cuit for deterioration such as
loose binding posts. broken
wire strands at terminals. etc.
Tighten all connections and
replace faulty terminals.
0
High field circuit
resistance.
Defective voltage
regulator.
If problem persists, jump
across terminals of the fol-
lowing components one at a
time until the faulty unit is
isolated.
a. Field 5 amp (alternator)
circuit protector.
b. Alternator half of master
switch.
c. Overvoltage relay.
Replace voltage regulator.
24-02-00
Page 24-06
Issued: January 2, 1980
1H3