The brush lead consists of 2 groups;
one is connected to the lead wire (group A) and the other is connected to the
starter yoke (group B).
•
Check continuity in the lead wire
and all the brush leads. The 2 brush leads which have continuity belong to group
A and the 2 brush leads which have no continuity belong to group B.
•
Checking continuity between
the brush lead and the lead wire will help to determine whether
a open-circuit has occurred in the field coil.
•
Checking insulation between
the brush lead and the starter yoke will help to determine whether
a short-circuit has occurred in the field coil.
