Kohler Aegis LH775 Service Manual page 49

25 Amp Regulated Charging System
A
A Battery
E Connector Block
Stator
Stator is mounted on crankcase behind fl ywheel. Follow procedures in Disassembly/Inspection and Service and
Reassembly if stator replacement is necessary.
Rectifi er-Regulator
NOTE: When installing rectifi er-regulator, take note of terminal markings and install plug(s) accordingly.
NOTE: Disconnect all electrical connections attached to rectifi er-regulator. Testing may be performed with rectifi er-
regulator mounted or loose. Repeat applicable test procedure two or three times to determine condition of
part.
NOTE: A fl ashing LOW light can also occur as a result of an inadequate ground lead connection. Make certain
connection location is clean and clamp is secure.
Rectifi er-regulator is mounted on blower housing. To replace, disconnect plug(s), remove mounting screws, and
ground wire or metal grounding strap.
Testing rectifi er-regulator may be performed as follows, using appropriate rectifi er-regulator tester.
To test 25 amp rectifi er-regulators:
1. Connect tester ground lead (with spring clamp) to body of rectifi er-regulator.
2. Connect red lead from tester to middle terminal labeled B+.
3. Connect black leads from tester to both outer AC terminals on rectifi er-regulator.
4. Plug tester into proper AC outlet/power supply for tester being used. Turn on power switch. POWER light should
be illuminated and one of four status lights may be lit as well. This does not represent condition of part.
5. Press TEST button until a click is heard and then release. Momentarily one of four status lights will illuminate
indicating partial condition of part.
Condition
OK (green) light comes on and stays steady.
NOTE: A fl ashing LOW light can also occur as a result of
an inadequate ground lead connection. Make
certain connection location is clean and clamp is
secure.
Other lights come on.
66 690 07 Rev. --
B
B Starter
Flywheel Stator
F
Assembly
KohlerEngines.com
D
F
C
E
C Fuse
Conclusion
Disconnect tester black lead attached to 1 AC terminal
and reconnect it to other AC terminal. Repeat test. If OK
(green) light comes on again, part is good and may be
used.
Rectifi er-regulator is faulty and should not be used.
Electrical System
D Rectifi er-Regulator
25 amp
49