Cub Cadet 8404 Operator's Manual page 53

BATTERY TROUBLESHOOTING
Condition of Battery
Starter does not function
Low electrolyte level
Battery cannot be charged
Corrosion of terminals is
severe
Electrolyte decreases
rapidly
Cause
- Key is not "ON".
- Battery is over-used until
light becomes dim.
- Defective alternator or
rectifier preventing
charging of the battery.
- Dirty or corroded terminal
contacts.
- Bad brushes, armature or
field in alternator.
- Life of battery expired.
- Battery used with
shortage of electrolyte.
- Battery over-used.
Charging was neglected.
(Refrain from over-
discharging)
- Defective alternator/
rectifier, defective
terminal contacts causing
corrosion of electrodes.
- The current of the
alternator during
operation is too high,
causing plates to drop,
warp, or short circuit.
- Lift of battery expired
- Current of the alternator
during operation is too
high.
- Over heating due to over
charging.
- Battery cracked or has
small holes.
Countermeasures
- Turn key "ON"
- Charge for a long period
at the normal charging
rate until specific gravity
of 1.26 is reached.
- Repair alternator and
replace defective rectifier,
and fully charge the
battery.
- Wash terminal with hot
water and tighten well.
- Replace.
- Replace battery.
- Add distilled water and
charge battery.
- Charge for a long period
at the normal charging
rate.
- Check alternator and
rectifier, and charge for a
long period at the normal
charging rate.
- Decrease the charging
current of alternator.
- Replaced damaged
battery.
- Exchange battery.
- Clean corrosion from
terminals and tighten well.
- Adjust charging current of
alternator.
- Check charging output.
- Replace battery.
53
Cause
- Do not overuse the
battery and charge before
being fully discharged.
- Check alternator/rectifier.
- Keep terminals clean and
well tightened. Coat
terminals with grease to
prevent corrosion.
- Make routine checks of
electrolyte.
- Do not overuse the
battery and charge before
being fully discharged.
- Make routine checks of
terminals to make sure
they are clean and tight
- Check charging current at
alternator.
- Keep terminals clean and
well tightened.
- Apply a coat of grease to
terminals to prevent
corrosion.
- Check charging current of
alternator.
- Secure battery in tractor
so it cannot move.