Piper COMANCHE PA-24-180 Service Manual page 637

PIPER COMANCHE SERVICE MANUAL
TABLE IX-VII. TROUBLESHOOTING
I Cause
Trouble Remdy
BATTERY
Discharged battery. Battery worn out.
Replace battery.
Charing rate not set
right.
Reset.
Discharging rate too
great.
Standing too long.
Equipment left on
accidentally.
Impurities in electrolyte.
Short circuit (ground) in
wiring.
Remove load when genertor
is not charging and re-
duce use of starter, etc.,
on ground; use external
power wherever possible.
Remove and recharge
battery if left in unused
airplane 3 weeks or more.
Remove and recharge.
Replace.
Check wiring.
Broken cell partitions. Replace.
Battery life is short.
Overcharge due to level
of electrolyte being
below top of plates.
Maintain electrolyte level.
Heavy discharge.
Sulfation due to disuse.
Impurities in electrolyte.
Remove loads when gen-
erator is not charging.
Replace.
Replace battery.
Low charging rate.
Adjust voltage regulator.
Cracked cell jars.
Hold-down bracket loose.
Replace battery and tighten.
Frozen battery.
Replace.
ELECTRICAL SYSTEM
ISSUED: 8/18/72
3 E22