KiSC issued 09, 2007 A
- - -
0
Checking No-Load Regulating Voltage
1)
)
Con nect a vol tmeter across the alternator's B termi nal
and the ground.
2)
Start the engi ne, speed u p to
a
rate (a pprox.
1300 min-
1
(rpm))
where the alternator is self-excited, a nd d iscon nect
the battery's negative cable.
3)
Read the vol tmeter while gradual
l
y accele rati n g the engine.
( Note for
checking)
•
Be sure to grad ually accelerate the engine whi le reading
the voltmeter. Never obtain the specified engine speed by
decelerati ng the engine from maxi m um speed.
(1) Voltage regulator
(2)
I.G. (Black/white)
(3) F (White/green)
(4) Voltage relay
C022F046
E L
B
78
(2) Checking Test Terminals IG-F
1)
Con nect a ci rcui t tester across
I
G (bl ack/whi te) and F
(wh
i
te/green
)
and read the tester wh
i l
e pressi ng the
vol tage regul ator with a finger.
2)
I f
the readin
g
is
i
nf in ity, the control resistor is broken .
(1)
I.G. (black/white)
(2)
F (white/green)
Regulator
(1) Checking Test Terminals IG-F
1)
Con nect a ci rcuit tester across the regul ator's coupler
I
G
(bl ack /wh ite) and F (wh
i
te/green
)
termi nal and measure
the resistance.
2)
I
f
the readi ng exceeds zero ohms, the vol tage regul ator's
l
ow-s
eed side contact is faul t
.
IG N
F
C022F042
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