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Page Title:
Table 5-1. Alternator Testing - Continued |
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 TM 10-3930-621-34
Table 5-1. Alternator Testing - Continued
Component
Ref
Connection
Reading
Result
fig.
5-4
Ohmmeter across diode, then reverse connections.
Both readings very low
Shorted
Both readings very high
Open
12 volt test lamp across diode, then reverse connections. Lamp fails to light in
Open
both checks
Lamp lights in both checks
Shorted
Caution: Do not use 110 volt test lamps to test
diodes.
Figure 5-3. Stator testing.
Figure 5-2. Rotor testing
5-3
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