Kubota WSM STV32 Workshop Manual page 379

STV32 · STV36 · STV40, WSM
Brush Wear
1. If the contact face of the brush is dirty or dusty, clean it with
emery paper.
2. Measure the brush length (A) with vernier calipers.
3. If the length is less than the allowable limit, replace the yoke
assembly and brush holder.
Factory spec.
Brush length (A)
Allowable limit
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.
Brush holder - Holder
Resistance
support
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.
9-S38
ELECTRICAL SYSTEM
15.0 mm
0.591 in.
11.0 mm
0.433 in.
0000005173E
Infinity
0000005175E
0000001172E
KiSC issued 04, 2006 A