Briggs & Stratton 86262GS Familiarization & Troubleshooting Manual page 75

Portable Generator Familiarization & Troubleshooting Guide
Section 3 • Generator Diagnostics and Adjustments
Test 6:
— Testing Stator AC Power Windings
Testing Single Voltage Type Power Winding
• Set a VOM to its "OHM" scale.
• Connect the meter test leads across the (AC) power
wires. (Wire #11 and wire #22 or blue and red wires
(Figure 3.27).
Figure 3.27 — Checking Power Winding Resistance
Measure the resistance and compare it to the nominal
resistance from the appropriate table
(Briggs & Stratton Power Products
Rotor/Stator Resistance Tables Pub. #87971 Rev 6 or later).
A reading of infinity or high resistance indicates an opening
in the stator winding.
A low reading indicates a shorted stator
winding.
®
"Portable Generator
Replace Stator
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• Connect one meter test lead to a good ground.
Connect the other test lead to the stator power
winding (Figure 3.28).
Figure 3.28 — Testing For Short To Ground
A reading of infinity should be measured. A reading of other
than infinity indicates a stator winding
shorted to ground.
Testing Dual Voltage Type Power Windings
• Set a VOM to the "OHM" scale.
• Connect the test leads to the stator wires #11 and
#22.
Measure the resistance and compare it to the nominal
resistance from the appropriate table
(Briggs & Stratton Power Products
Rotor/Stator Resistance Tables Pub. #87971 Rev 6 or later).
• Connect the test leads to the stator wires #22 and
#44.
Measure the resistance and compare it to the nominal
resistance from the appropriate table. Analyze the results the
same as in "Testing Single Voltage Type Power Winding".
• Connect one meter test lead to a good ground.
Connect the other test lead to the stator power
winding. (Refer back to Figure 3.28).
A reading of infinity should be measured. A reading other
than infinity indicates a stator winding
shorted to ground.
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Replace Stator
®
"Portable Generator
Replace Stator