Briggs & Stratton 076000NG Service & Troubleshooting Manual page 40

TEST 5 - Test Alternator Windings
There are four components that contain windings
that form an electrical path of low resistance.
Each component can be checked for continuity.
To Check Winding for Continuity:
1. Using meter, measure the loop resistance
of the following four components:
• Exciter Stator
• Exciter Rotor
• Main Stator
• Main Rotor
2
2. Verify measured values against those
listed in the table below.
NOTE: These very small resistances require
precision test equipment to obtain accurate
measurements. However, a standard meter will
provide a good indication of winding continuity.
G enerator Resistance
Stator Rotor
0.07 0.46
Figure 27 Generator Stator Resistance
36
Exciter
Exciter Resistance
Field No
Load Volts Stator Rotor
10.1 18.0 0.120
Figure 28 Generator Rotor Resistance
Figure 29 Exciter Stator Resistance
Figure 30 Exciter Rotor Resistance
• If winding resistance is
acceptable,proceed to Insulation
Resistance Test.
• If winding resistance is not acceptable,
repair or replace as necessary.