Generac Power Systems XT8000EFI User Manual

Section 1 AC Diagnostic Tests
10 Diagnostic Repair Manual
Results
1. If any other reading than CONTINUITY was
measured, further troubleshooting needs to be done
to determine if it is the receptacle or the wiring.
2. If receptacles test good, refer to flow chart.
Figure 3-3. Checking Continuity of Receptacles
Test 4 – Fixed Excitation Test/Rotor
Amp Draw Test
General Theory
Supplying a fixed DC current to the rotor will induce a
magnetic field in the rotor. With the generator running,
this should create a proportional voltage output from the
stator windings.
NOTE: A standard 12 Volt battery is needed for this
procedure.
NOTE: Always use the unit specific schematics and
wiring diagrams for brush orientation.
Procedure
1. Remove positive and negative wires connected to
the brush assembly.
2. Connect one jumper wire to where the positive
brush wire was connected on the brush assembly.
3. Connect another jumper wire to where the negative
brush wire was connected on the brush assembly.
NOTE: For safety, install an in-line fuse in the positive
jumper wire. Maximum fuse should be 2 amps.
4. Set DMM to measure AC Voltage.
5. See Figure 3-4. Connect meter test leads across
the 240 VAC receptacle so the leads read line-to-
line voltage.
6. Set RUN-STOP switch to RUN and start unit.
7. While the unit is running connect one jumper wire
to the negative terminal of the battery and connect
the other jumper wire to the positive terminal.
8. Record the voltage measured on the 240 VAC
receptacle panel. Approximately 130 VAC should
be measured. If no voltage is measured, connect
meter test leads across R1 and L2 at the stator
connection terminal strip.
9. Set RUN-STOP switch to STOP.
10. Disconnect meter leads from 240 VAC receptacle.
11. See Figure 3-5. Connect one meter test lead to
Wire 2 and the other meter test lead to Wire 6 on
the C1 female connector.
12. Set RUN-STOP switch to RUN and start unit.
Figure 3-4. Jumper Wires Between Battery and Brush Assembly
0.01 Ohms
AVR
12 VOLT
BATTERY
240 VAC
RECEPTACLE
(-)
(+)
130 VAC
FUSE
BRUSH ASSEMBLY
AVR SENSING
DPE
WHITE
GREEN
BLUE
BLUE
S15 2
S16 6
C1 FEMALE
004979

Generac Power Systems XT8000EFI Specifications

General

Brand	Generac Power Systems
Model	XT8000EFI
Category	Portable Generator
Language	English