TP-6079 3/00 23Section 6 Component Troubleshooting
Section 6 Component Troubleshooting
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
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 to 20 volts AC
or greater. Crank the
generator set and allow the
set to reach its rated speed.
A reading of 12--15 volts AC
indicates a functional B1/B2
winding.
Figure 6-1 Engine/Generator Component Testing, Relay Controller
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