TP-5986 4/03 33Section 8 Component Troubleshooting
Section 8 Component Troubleshooting
8.1 Engine/Generator Components
See Figure 8-1 through Figure 8-3 for engine/generator
component testing.
With the generator set battery connected, check the
wiring harness and the engine/generator components
listed in the following tables. Check each component
using a multimeter to verify that the switches function
and that voltage is present at each component.
Component Voltmeter Connections Procedure Results
Hourmeter and wiring Connect the red test lead to
the hourmeter positive (+)
terminal. Connect the black
test lead to the hourmeter
negative (--) terminal.
Set the voltmeter to 12 volts
DC or greater. Start the
generator set.
A 12 volt DC reading
indicates the wiring harness
is functional.
None (see Procedure) Disconnect the hourmeter
leads and apply 12 volts DC
to the hourmeter. The
hourmeter is polarity
sensitive.
If functional, hourmeter
operates.
Stator auxiliary winding B1
and B2
Connect the AC voltmeter
leads to the B1 and B2
windings at connector P11.
Stop the generator set.
Set the voltmeter setting 20
volts AC or greater. Crank
the generator set and allow
the set to reach rated its
speed.
A reading of 12--15 volts AC
indicates a functional B1/B2
winding.
Figure 8-1 Engine/Generator Component Testing, Relay Controller
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