Perkins 103-06 Workshop Manual page 48

1. Flywheel complete
2. Stator complete 3.
Plate
4. Ball bearing
103/06 Tests:
Relation between charge
current and battery
terminal voltage
(at alternator 5200rpm)
Alternator Performance of unit alone
No load voltage (between
blue and blue) tester
reading at operation (
about 5200rpm)
Tester Between
continuity blue and
blue of
lead wire
Insulation resistance (
between a lead wire and
coil plate)
Alternator
E0104
Normal
1 More than 14A at 14V
2 14A-0.5A at 14-15V
Normal
More than AC 28V
Continuity observed
More than 3MSI
Regulator
RS5101
Blue
Inspection
A. Connect an ammeter and a voltmeter as shown (
PB121) and check the relation of the charging
current with the terminal voltage.
Abnormal
More than 14A at battery
voltage more than 15V
Charge current OA
Flowing charge current
but low battery voltage
Abnormal
Less than AC28V AC OV
Continuity not observed
Less than 3Mf I
e
Re
d
G
12V _
een
Battery
Blac
k
Charge
lamp
PB121
Cause
Improper operation of
regulator
Defective alternator or
regulator or improper
connection
Defective battery
(overdischarge)
Cause
Demagnetized flywheel,
disconnected coil or
wiring harness
Disconnected coil
Improper coil insulation
Load