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ENGINE ELECTRICAL 6D – 31
5. Test the armature for short circuiting. a. Place the armature in a growler tester.
If the armature has a short circuit, the hacksaw blade
6. Use a circuit tester to check the armature for grounding. 1) Hold one probe of the circuit tester against the commutator segment. 2) Hold the other circuit tester probe against the armature core.
If the circuit tester indicates continuity, the armature is
7. Use the circuit tester to check the armature for continuity. 1) Hold the circuit tester probes against two armature core segments. 2) Repear Step 1 at different segments of the armature core.
There should be continuity between all segments of
YOKE 1. Use a circuit tester to check the field winding ground. 1) Hold one circuit tester probe against the field winding end or brush. 2) Hold the other circuit tester probe against the bare surface of the yoke body.
There should be no continuity.
2. Use the circuit tester to check the field winding continuity. 1) Hold one circuit tester probe against the “C” terminal lead wire. 2) Hold the other circuit tester probe against the field winding brush.
There should be continuity. |