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TROUBLESHOOTING & REPAIR
F-35 F-35
RANGER 300 D AND 300 DLX
AUXILIARY AND FIELD WINDING TEST (continued)
FIGURE F.10 – LOCATION OF LEADS #7 AND #9 AT FIELD BRIDGE RECTIFIER
200
200A
200B
201
201A
200
200A
200B
7
9
+
_
AC
AC
7
201
201A
9
Field
Bridge
Rectifier
Retaining
Tab
Cable
Tie
Capacitor
To test the field winding:
1. With the 5/16” and 3/8” nut drivers, remove
the case right side.
2. Connect the volt/ohmmeter probes to leads
#7 and #9 where they connect to the Field
Bridge Rectifier. See Figure F.10.
3. Start the engine and run it at high idle (3700
RPM).
4. Set the output control to the maximum
position (position 10).
5. Check the AC voltage reading. It should be
between 40 and 47 VAC.
If the reading is missing or not within spec-
ifications, check for loose or broken wires
between the test points and the stator
windings. See the Wiring Diagram. Make
sure that the windings are NOT grounded
internally to the stator iron. If the leads are
intact, then the stator may be faulty. Re-
place the stator. If the voltage reading is
within specifications, the windings are good
and functioning properly.
6. Reinstall the right case side.