ALTERNATOR
10 Amp-Fuse Type
Testing Rectifier-Regulator Assembly
With changing lead connected to battery, check voltage
across battery terminals with DC volt-meter. See Fig.
223. If voltmeter reads 13.8 volts or higher, reduce
battery voltage by connecting 12 volt load lamp across
battery terminals.
When battery voltage is below 13.5 volts, note voltage.
Start engine and run at 3600 RPM. Voltmeter reading
should rise. If battery is fully charged reading should rise
about 13.8 volts. If voltage does not increase and stator
has
been
checked
previously,
rectifier-regulator
assembly is defective and must be replaced.
Condition Found (Continuous High Charge Rate)
Start engine and run at 3600 RPM. (Charge lead must
be connected to battery.) Measure voltage across battery
terminals with DC voltmeter. See Fig. 223. Voltmeter
reading should not be above 14.7 volts. If voltage is
higher regulator-rectifier assembly is defective and must
be replaced.
NOTE: A high charge rate with voltage below 14.7 volts
indicates battery condition is poor. Test battery!
Fig. 223 - Rectifier-Regulator Check
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