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ELECTRICAL
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ELECTRICAL
TROUBLE SHOOTING:
If the faults occur in the power generating system, the cause need not necessarily lie with the
alternator or the regulator. Further possible sources of troubles are the battery, cabling, battery charging
indicator lamp, belts etc. The following table makes it possible to trace the cause of faults and to make the
appropriate corrective actions.
CONDITION
POSSIBLE CAUSES
CORRECTION/REFERANCE ITEM
Open circuit or high resistance in
charging circuit
Check connection and ensure use of
recommended wire
Battery defective
Replace battery
Alternator defective
Get alternator repaired
Regulator defective
Replace regulator
Battery not being
charge/sufficiently charged
V - belt loose
Re-adjust or replace v belt
Battery defective
Replace battery
Regulator defective
Replace regulator
Battery charging warning lamp blown Replace cluster
Battery discharged
Recharge battery
Lead loose or defective
Replace leads or tighten the
connections
Short circuit of positive diode in the
alternator
Get alternator repaired
Carbon brushes worn
Replace the carbon brushes
Battery charging indicator
lamp is not glowing when
ignition switch is ON
Open circuit in
e
xcitation winding
Get alternator repaired
Regulator defective
Replace regulator
V - belt loose
Readjust or replace v belt
Lead D+/l short circuit to ground
Replace lead or repair short circuit
Alternator engine lamp light
up at engine running
Rectifier defective, collector ring
fouled, short circuit in the stator
Get alternator repaired
Alternator defective
Get alternator repaired
Regulator defective
Replace regulator
Battery charging indicator
lights up less brightly
High resistance in charging circuit or
in lead to battery charging indicator
Check connection and ensure use of
recommended wire