Onan CCK - Page 44

TESTING PHELON 15 AMP SYSTEM
BASIC TEST
PROCEDURE TEST VALUES
1. Battery
Battery Voltage - unit not running 12VDC
2. Regulator
Battery Voltage after unit is
running 3 to 5 minutes
13.6 to 14.7 VDC
3. Alternator
Stator and
Wiring
Ohmmeter reading from
stator output - unit not running.
Check at plug.
.11 to .19 Ohms
4. Alternator
and Wiring
Measure AC open circuit stator
voltage with unit running. Measure
between two stator leads with
plug disconnected and unit
running at approximately 3600 rpm.
28 VAC Minimum
65 VAC Maximum
20 AMP FLYWHEEL ALTERNATOR
SYSTEM
System identification: Syncro flywheel alternator
systems use a separate regulator and a separate
rectifier. There are two black wires and one red wire
coming from the stator assembly. For testing this
system, use a voltmeter-ohmmetersuch as a Simpson
270. Following are various alternator problems with
individual test procedures.
ALTERNATOR STATOR
MOUNTED BEHIND BLOWER WHEEL
_1 SYNCHRO 20 AMP. SYSTEM
STATOR. ASSY.
RECTIFIER
FIGURE 39. 20 AMP SYSTEM
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