Specifications

7
10
6. With engine running at specified RPM, output
should be as listed in Table No. 2, Specifications.
7. If low or no output, check stator air gap, when
applicable. See Table No. 2, Specifications.
8. If stator air gap is within specification and there is
low or no output, replace stator.
Test AC Voltage Output
Procedures are common to all systems with
exceptions noted below.
Temporarily disconnect stator wire harness from
regulator-rectifier. (5 & 9 amp Regulated Alternator
)
1. Insert RED test lead (3) into
receptacle in
meter.
2. Insert BLACK test (1) lead into COM receptacle in
meter.
3. Rotate selector to V (AC volts) position.
4. Attach RED test lead clip to AC output terminal (2),
Fig. 18, Typical.
See Fig. 19 for Dual Circuit alternator.
Fig. 18
3
1
2
5. The BLACK wire (1) is AC output. Connect the
RED lead (2) to the output lead or AC output
terminal (4).
Ground the BLACK lead (4) to the engine.
The bump on the connector indicates the AC
output terminal (6)
a. (Quad Circuit
and 10 & 16 amp Regulated
Alternators) Insert RED (2) and BLACK (3)
test lead probes into output terminals in yellow
connector (6), as shown in Fig. 20. (Meter test
clip leads may be attached to either terminal.)
Fig. 19
4
5
1
2
3
6. Attach BLACK test lead clip to engine ground.
7. With engine running at 3600 RPM, AC output
should be as listed in Table No. 3, Specifications.
8. If no or low output is found, check for bare wires or
any other obvious defects. If “shorted” leads are
not visible, replace the stator.
9. If alternator output is good, test diodes located in
wiring harness. (Tri Circuit Alternator
)
Fig. 20
3
6
2