5-S20
ZD321, ZD326, ZD331, WSM
ELECTRICAL SYSTEM
Brush Holder
1. Check the continuity across the brush holder and the holder
support with an ohmmeter.
2. If it conducts, replace the brush holder.
W1023089
Armature Coil
1. Check the continuity across the commutator and armature coil
core with an ohmmeter.
2. If it conducts, replace the armature.
3. Check the continuity across the segments of the commutator with
an ohmmeter.
4. If it does not conduct, replace the armature.
W1023212
Field Coil
1. Check the continuity across the lead (1) and brush (2) with an
ohmmeter.
2. If it does not conduct, replace the yoke assembly.
3. Check the continuity across the brush (2) and yoke (3) with an
ohmmeter.
4. If it conducts, replace the yoke assembly.
W1023312
(1) Lead
(2) Brush
(3) Yoke