Piper COMANCHE PA-24-180 Service Manual page 638

Vent lines leaking or
clogged.
Charging rate too high.
PIPER COMANCHE SERVICE MANUAL
TABLE IX-VII. TROUBLESHOOTING (cont)
Trouble Remedy
Compound on top of
battery melts.
Electrolyte runs out of
vent plugs.
Excessive corrosion
inside container.
Charging rate too high.
Too much water added to
battery and charging
rate too high.
Spillage from over-filling.
Reduce charging rate by
adjusting voltage
regulator.
Drain and keep at proper
level and adjust voltage
regulator.
Use care in adding water.
Repair or clean.
Adjust voltage regulator.
Battery freezes. Discharged battery. Replace.
Water added and battery
not charged immedi-
ately.
Always recharge battery for
1/2 hour following
addition of water in
freezing weather.
0
Leaking battery jar.
Battery polarity reversed.
Battery consumes excessive
water.
Frozen.
Connected backwards on
airplane or charger.
Charging rate too high
(if in all cells).
Replace.
Battery should be slowly
discharged completely
and then charged correctly
and rested.
Correct charging rate.
Cracked jar (one cell
only).
GENERATOR
Replace battery.
Generator operating
within rated speed
range but voltage
output low.
If the voltage is low, the
generator is operating
on residual magnetism.
Check for loose or high
resistance connections
clean and tighten.
ELECTRICAL SYSTEM
ISSUED: 8/18/72
3 E23