Piper SARATOGA PA-32-301 Maintenance Manual page 577

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
CHART 8001. TROUBLESHOOTING (STARTER) (cont)
Trouble Cause
Remedy
Motor fails to operate.
(cont)
Dirty commutator.
If commutator is rough or
dirty, smooth and polish
with number 0000 sand-
paper. If too rough and
pitted, remove and turn
down. Blow out all parti-
cles.
Shorted, grounded, or
open armature.
Grounded or open field
circuit.
Remove and replace with
an armature known to be
in good condition.
Test. repair if possible or
replace with a new part.
Low motor and cranking
speed.
Worn, rough, or improp-
erly lubricated motor or
starter gearing.
Disassemble. clean, in-
spect, and relubricate.
replacing ball bearings
if worn.
Same electrical causes as
listed under "Motor fails
to operate."
Binding, worn, or im-
properly seated brush or
brushes with excessive
side play.
Same remedies listed for
these troubles.
See information above deal-
ing with this trouble.
Excessive arcing of motor
brushes.
Dirty commutator, rough,
pitted. or scored.
Clean as outlined above.
Excessive wear and arcing
of motor brushes.
Rough or scored commu-
tator.
Remove and turn commu-
tator down on a lathe.
Armature assembly not
concentric.
Reface commutator.
80-00-02
Page 80-03
Issued: January 2, 1980
3A22