ELECTRICAL and IGNITION - 2B-1790-817643R1 DECEMBER 1996
ARMATURE TEST FOR GROUND
1. Set ohmmeter to (R x 1 scale). Place one lead of ohm-
meter on armature core (or shaft) and other lead on
commutator, as shown.
2. If meter indicates continuity, armature is grounded and
must be replaced.
11675
CHECKING POSITIVE BRUSHES AND TERMINALS
1. Connect ohmmeter (R x 1 scale) leads between posi-
tive brushes.
2. Ohmmeter must indicate full continuity (zero resis-
tance). If resistance is indicated, check lead to positive
terminal solder connection. If connection cannot be re-
paired, brushes must be replaced. Refer to “Brush Re-
placement”.
11673
a
a - Positive Brushes
TESTING NEGATIVE BRUSHES FOR GROUND
Set ohmmeter to (R x 1 scale). Place one lead of ohmmeter
on the negative brush and the other lead on the end cap
(bare metal). If the meter indicates NO continuity, replace
the negative brush. Repeat this procedure on the other
negative brush.
11674
a
b
a - Negative (-) Brushes
b - End Cap
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