Mercury 40 Service Manual page 108

17. After cleaning, ohm test each segment of the commutator as shown. If ohm test reading
is other than listed, replace the armature.
SEGMENT
a -
b -
c -
SEGMENT
SEGMENT
90-828631R3 MARCH 1999
ARMATURE COIL CONTINUITY
METER TEST LEADS
RED BLACK
SEGMENT
a
Commutator
Lamination
Shaft
ARMATURE COIL CONTINUITY
METER TEST LEADS
RED BLACK
LAMINATION
SHAFT
METER READING
SCALE
X1 X1 CONTINUITY CONTINUITY
b
c
METER READING
SCALE
X1 X1
CONTINUITY
X1
CONTINUITY
CHARGING AND STARTING SYSTEM
NO
NO
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