7.15
Section 7
Electrical System and Components
7
Troubleshooting Stator Brake System
Problems that could occur with the Kohler portion
circuit generally could be caused by two component
failures or an incorrect relay replacement, which will
create the following conditions:
Dead Battery
The brake relay has failed and is keeping the stator
shorted, so no charge current can be passed from the
rectifier-regulator to the baery, eventually allowing
the baery to discharge.
Test
Check baery voltage using a test meter with the
application off and then while the application is
operating at maximum speed. The baery voltage
should increase from the engine off condition to the
engine full speed condition.
If it does not, shut down the engine, remove the relay
from its socket and re-test at full engine speed.
If the baery voltage does not increase with the engine
operating, the problem is likely not with the stator
brake relay.
Perform other test associated with the charging stator
and rectifier-regulator to further determine root cause.
Engine will crank but will not start
The brake stator relay is interacting with the
application safeties or the reverse mow electronics,
preventing normal engine start up.
Test
Remove the brake relay from its socket and aempt
to restart the engine. If the engine starts, it is likely
that the relay is not correct for this application or the
transient protection resistor has failed. Replace the
relay with the correct component.
If the engine does not start, the problem may
exist with the application reverse mow circuit, the
application safeties or with the key switch keeping the
ignition shutdown line tied to engine ground.
Remove the engine shutdown (kill) lead from the
application wire harness and aempt to start the
engine again.
If the engine still does not start, you may have a fuel
or ignition problem.
Stator
Assembly
Wiring
Harness
Stator leads to
Rectifier-Regulator
Wiring Harness
Insert relay into harness
connector as shown
Insert stator leads into connector
slots shown either orientation is
acceptable
Center slot is empty
Wire Tie
(Black)
Push Wing
Mount
(Black)
Position connector with relay approximately as
shown and attach to starter with wire tie
Figure 7-13. Stator Brake and Relay Harness Connections.
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