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TROUBLESHOOTING & REPAIR
AUXILIARY AND FIELD WINDING TEST (continued)
FIGURE F.4 – LOCATION OF LEADS #7 AND #9 AT FIELD BRIDGE RECTIFIER
Field Bridge Rectifier (see inset)
Capacitor
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To test the field winding:
1.With the 5/16” and 3/8” nut drivers, remove the sheet metal screws from the right case side.
2.Carefully remove the right case side.
3.Set the voltmeter to the AC volts position.
4.Connect the voltmeter probes to leads #7 and #9 where they connect to the field bridge rectifier. See Figure F.4.
5.Start the engine and run it at high idle (3700 RPM).
6.Set the output control to the maximum position (position 10).
7.Check the AC voltage reading. It should be between 40 and 47 VAC.
If any one or more of the readings are missing or not within specifications, then check for loose or broken wires between the test points and the stator windings. See the Wiring Diagram. Make sure the windings are NOT grounded internally to the stator iron. If the leads are intact, then the stator may be faulty. Replace the stator. If the voltage readings are within specifications, then the windings are good and functioning properly.
7.Reinstall the right case side using the 5/16” and 1/8” nut drivers and sheet metal screws.
RANGER
