Kohler K91 Service Manual page 89

SAFETY INTERLOCK CIRCUIT ON VEHICLE
SEAT
�
WARNING:
Never return an engine to the
owner with the safety interlock system removed or
bypassed.
Great bodily harm or equipment damage could
result.
Interlocks connected to an engine with a battery
ignition syste m are bypassed simply by placing a
jum per wire as shown in Figure 8-22 .
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WARNING:
Make sure all safety conditions
have been observed before starting an engine with
the interlocks bypassed.
The safety interlock system on manual start mag­
neto ignition engines is placed in the ignition sys­
tem . The series connected interlock switches are
connected to a solid state module that is con­
nected to the ignition system . The module serves
two functions. It grounds the ignition system until
all interlocks have closed and , after the engine
has started , it prevents the ignition from grounding
as the individual interlocks are opened in normal
operation (transmission placed in Drive , PTO en­
gaged , etc . ) . Refer to Figure 8-23.
JUMPER (TEST ONLY)
BATTERY
Figure 8-22 . Battery Ignition I nterlock Bypass.
SMALL TERMINAL ---- -.,.:
SOLENOID
Brush Replacement
(Refer to Figure 8-23. )
B rush Springs
\
Brush H older
Figure 8-23. Comm utator End Cap With Brushes.
1 . Remove the brush springs from the pockets in
brush holder.
2 . Remove the self-tapping screws and negative
(-) brushes .
3 . Remove hex nut , split lock washer, plain wash­
er, and fiber washer from the stud terminal .
Remove the stud terminal with positive
brushes , and plastic brush holder from end cap .
Stud Terminal With
Positive (+) Brushes
-
Negative ( )
Brushes
(+)
8. 1 9
: