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Rectifier bridge check
Figure 7-6. Drive end bearing assembly.

TM-5-4310-354-14 Compressor Rotary; Air Skid Mounted; Diesel Engine 125 CFM 100 PSIG (Davey Model 6M125) Manual
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TM 5-4310-354-14
TS5-4310-354-14/7-4
Figure 7-4. Rectifier bridge check.
(4) Stator check . Check the stator for opens
and grounds using an ohmmeter as shown in figure 7-5.
If the reading is low when connected from any stator
lead to the frame, the windings are grounded.  If the
meter reading is high when successively connected
between each pair of stator leads, the windings are
open. A short circuit in the stator windings is difficult to
locate without laboratory test equipment due to the low
resistance of the windings.  However, if all electrical
checks are normal and the alternator fails to supply rated
output, shorted stator windings are indicated. Check the
regulator in the next step before replacing the stator.
(5) Regulator testing.  To determine if the
regulator is defective, use an approved regulator tester.
d. Cleaning, Inspection, and Repair.
CAUTION
Do not use solvent to soak or clean
any
insulation
or
electrical
component.
(1) Clean internal parts with clean, dry com-
pressed air.
TS5-4310-354-14/7-5
Figure 7-5. Checking stator windings.
7-5






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