Kohler 23EKOZD

TP-6953 7/19 189Section 11 Alternator Component Testing and Adjustment
11.2.1 Troubleshooting Alternator, No Output Voltage
No output voltage
is detected.
Perform flashlight test on FRX
activator board. See Section 11.3,
LED Optic Board Test. Is 190- 277
AC output voltage present?
Is DC voltage
present at LED
optic board?
Does the FRX activator check
out okay? See Section 11.4,
FRX Activator Board Test.
Unplug connector
at LED optic
board and check
voltage. Is DC
voltage present?
If DC voltage of
6- 12 volts is
present, replace
LED optic board
(LED is open).
If DC voltage of
6-12voltsispresent,
replace LED optic
board. (LED is shorted
and/or grounded.)
Check wiring between
controller with voltage
regulator and LED optic
board. Does wiring
check out okay?
Repair/
replace wiring.
Troubleshoot the
controller with
voltage regulator.
Replace
FRX
activator.
Replace
rotor
assembly.
Does the exciter
armature check out
okay? See Section 11.5,
Exciter Armature Test.
Replace
exciter
armature.
Do the rotor windings
check out okay? See
Section 11.6, Rotor
Assembly Field
Winding Test.
Check wiring
to FRX
activator.
No
No
No
No
Yes
Yes
Yes
Yes
Do the stator windings
check out okay? See
Section 11.7, Stator
Assembly Winding
Tes t.
No
Yes
No
Yes
No
Yes
Replace
stator
assembly.
No
Yes