Section 6 Component Troubleshooting; Engine/Generator Components - Kohler 5ERKM Service Manual

6.1 Engine/Generator Components

See Figure 6-1 through Figure 6-3 for engine/generator
component testing. With the generator set battery
connected, check the wiring harness and the
engine/generator components listed in the following
Component
Hourmeter and wiring.
Stator auxiliary winding
B1 and B2.
Figure 6-1 Engine/Generator Component Testing, Relay Controller
TP-6079 3/00

Section 6 Component Troubleshooting

Voltmeter Connections
Connect the red test lead to
the hourmeter positive (+)
terminal. Connect the black
test lead to the hourmeter
negative (--) terminal.
None (see procedure).
Connect the AC voltmeter
leads to the B1 and B2
windings at connector P11.
tables. Check each component using a multimeter to
verify that the switches function and that voltage is
present at each component.
Procedure
Set the voltmeter to 12 volts
DC or greater. Start the
generator set.
Disconnect the hourmeter
leads and apply 12 volts DC
to the hourmeter. The
hourmeter is polarity
sensitive.
Stop the generator set. Set
the voltmeter to 20 volts AC
or greater. Crank the
generator set and allow the
set to reach its rated speed.
Section 6 Component Troubleshooting
Results
A 12 volt DC reading
indicates the wiring harness
is functional.
If functional, hourmeter
operates.
A reading of 12--15 volts AC
indicates a functional B1/B2
winding.
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