ELECTRICAL SYSTEM
L3540-II, L4240-II, L5040-II, L5240-II, L5740-II , WSM
9-S75
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.
WSM000001ELS0036US0
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.
WSM000001ELS0037US0
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.
WSM000001ELS0038US0
Resistance
Brush holder –
Holder support
Infinity
(1) Lead
(2) Brush
(3) Yoke