STARTING SYSTEM 6D2 – 9
Armature ground test
Touch one probe of a circuit tester to the commutator
segment and the other to the armature core. There
should be no continuity. If there is a continuity, the
armature is grounded. Replace the armature if it is
grounded.
Armature continuity test
Connect the probes of a circuit tester across the 2
segments. There should be continuity at any test points.
Replace if it is open-circuited.
YOKE
Field winding ground test
Using circuit tester, touch one probe to the field winding
end or brush and the other to the bare surface of yoke
body.
There should be no continuity. If the tester indicates a
continuity, the field coil is grounded and yoke assembly
should be replaced.
Field winding continuity test
Using a circuit tester, touch one probe to the "C" terminal
lead wire and the other to the brush. There should be
continuity. Replace the yoke if it is open.
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