Chapter 9 Electrical
System
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3,4JH3(B)(C)E
(3)
Assembling the rear cover
Insert pins from the outsice of
the
rear cover. Install
the brush on the brush holder, then attach the rear
cover.
After assembly, pull out the pins.
(4) Tightening torques
Positions
Brush
holder
fixing
Diode
fixing
Bearing
retainer
fixing
Pulley
nut
tightening
Through-bolt tightening
5-10 Performance test
Brush
hclder
Brush
Pin
Rear
cover
Tightening
torque
kg-cm
32-40
60-70
32-40
400-600
32-40
Conduct a performance test
on
the reassembled
AC
gen-
erator as follows. The following is the circuit for the per-
formance test.
a.
E
L'!l
Q.1
ei
L'!l
.c
()
Printed
in japan
HINSHI-H8009
(1)
Measuring devices
DC
voltmeter
0-15V
or
0-30V,
0.5 Class, 1
pc.
DC
ammeter
0-100A,
1.0 Clsss 1pc.
Variable resistor
0-0.25Q.1kW,
1pc.
Lamp 12V, 3W
100 Q resistor
3W
0.25 Q resistor 25W
(2}
Measuring the regulating voltage
1}
When measuring devices are connected
in
the per-
formance test circuit
as
shown above, the charge
lamp lights.
2) Close
SW2
while keeping
SW1
open and
run
the AC
generator. When the revolutions of the generator are
gradually raised, the charge lamp goes off.
3}
Raise the revolutions of the
AC
generator, and read
the
voltmeter gauge when the revolutions reach about
5,000 rpms.
NOTES :
1.
Make sure that the ammeter indication at this
time
is
less than 5A.
If
the indication is over
SA,
connect the
0.25
Q resistor. The volt-
meter indication at this time must be with-
in
the prescribed regulating voltage value.
2.
Raise
the
AC
generator revolutions high
to
make sure
the
regulating voltage does not
fluctuate along with changes
in
the revolu-
tion speed.
(3)
Precautions for measuring the regulating voltage
1}
When measuring the voltage, measure the voltage
between the
AC
generator
BAT
terminal,
or
Battery
+ terminal, and
AC
generator E-terminal.
2}
Use a fully charged battery.
3)
Measure the voltage quickly.
4) Keep SW, open for measurement.
0.250
Resistor
Connect when
the batterries
are discharged
9
0.250
9-37
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