16 Amp Alternator - Vanguard OHV V-Twin User Manual

Output Test
WHEN CHECKING ALTERNATOR COMPONENTS
MAKE TESTS IN THE FOLLOWING SEQUENCE:
Temporarily disconnect stator wire harness from
regulator-rectifier.
1. Insert RED test lead into VW receptacle in meter.
2. Insert BLACK test lead into COM receptacle.
3. Rotate selector to V~ (AC VOLTS) position.
4. Attach RED test lead clip (1) to GREEN output
terminal (3), Fig. 24.
5. Attach BLACK test lead clip (2) to engine
ground.
6. With the engine running at 3600 RPM, AC output
should be no less than:
•
28 Volts AC – 5 Amp System
•
40 Volts AC – 9 Amp System
7. If NO or LOW output is found, replace the stator.
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Fig. 24
Regulator-Rectifier Test
NOTE: The regulator-rectifier will not function
unless it is grounded to engine. Make sure
the regulator-rectifier is securely mounted
to the engine.
regulator-rectifier for amperage output, a
12 volt battery with a minimum charge of 5
volts is required. There will be no output if
battery voltage is below 5 volts.
CAUTION: Connect test leads BEFORE starting
engine. Be sure connections are secure. If a
test lead vibrates loose while engine is
running, the regulator-rectifier may be
damaged.
Ì Ì
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When testing
Connect stator wire harness to regulator-rectifier.
1. Insert RED test lead into 10A receptacle in
meter.
2. Insert BLACK test lead into COM receptacle.
3. Rotate selector to A== (DC AMPS) position.
4. Attach RED test lead clip (1) to RED DC output
terminal (3) on regulator-rectifier, Fig. 25.
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Ì Ì Ì Ì Ì Ì
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Fig. 25
5. Attach BLACK test lead clip (2) to POSITIVE (+)
battery terminal.
6. Run the engine at 3600 RPM. The output
should be:
•
3-5 Amps – 5 Amp System
•
3-9 Amps – 9 Amp System
NOTE: The amperage produced depends on
battery voltage. If the battery is below 11
volts, the output reading would be 5 or 9
amps, depending upon the alternator
system being tested. The amperage will be
less at maximum battery voltage.
7. If NO or LOW output is found, be sure that
regulator-rectifier is grounded properly and all
connections are clean and secure. If there is still
NO or LOW output,
regulator-rectifier.
10 & 16 Amp Regulated Alternator
The 10 or 16 amp regulated alternator system
provides AC current through two YELLOW output
leads to the regulator-rectifier. The regulator-rectifier
converts the AC current to DC and regulates current
to the battery. The charging rate varies with engine
RPM and temperature.
The stator and regulator-rectifier are the same for
the 10 and 16 amp systems. The system output is
determined by the flywheel magnet size.
1. Stator Assembly (1) – 10 or 16 amp DC
regulated system, Fig. 26.
‚
replace the
41