Nortrac 35XT - Page 55

Maintenance Instructions
49
2.16.2.2 Alternator Faults and Troubleshooting
Table 2-10 Alternator Faults and Troubleshooting
Fault Causes Solutions
1. The alternator does not
generate electricity.
(1) Wiring is wrong, broken, and/or
making poor contact.
(2) Rotor circuit broken.
(3) Rectifier diode damaged.
(4) Carbon bushes are not making
proper contact..
(5) Regulator is damaged.
(1) Check and repair the circuits.
(2) Replace alternator.
(3) Replace alternator.
(4).Replace alternator.
(5).Replace alternator.
2. The alternator is not
charging properly.
(1) The drive V-belt is loose.
(2) Bad contact with the carbon brush
and the commutator.
(3) The regulator is damaged.
(4) Not enough electrolytes in the
battery or battery is sulfurized or too
old.
(1) Adjust the tension of the drive
V-belt.
(2) Replace alternator.
(3) Replace alternator.
(4) Replace battery.
3. The alternator is
overcharging.
Regulating voltage for the regulator is
too high.
Replace the voltage regulator.
2.16.2.3 Battery Faults and Troubleshooting
Table 2-11 Battery Faults and Troubleshooting
Fault Causes Solutions
1. The battery capacity is
low and the engine is hard to
start.
(1) Short circuit between electrode
plates in the battery
(2) Sulphurization of the electrode
plates in the battery.
(3). Poor circuit connector contact, or
too much oxidation
(1) Replace battery.
(2) Replace battery.
(3) Clean battery terminal, securely
fasten cable connector, and coat with a
layer of petroleum jelly.
2. Excessive battery
discharging.
(1) Impurities in the electrolytes.
(2) Short circuits exist in the electrical
system.
(3) Short circuit caused by placement of
a metal tool or bar between
positive/negative posts.
(4). Corrosion on battery terminals or
cables.
(1) Replace battery.
(2) Troubleshoot and repair.
(3) Remove metal object, replace battery
if necessary.
(4) Clean and replace if necessary.