Alternator - Kubota B1220 Workshop Manual

B1220, B1620, B1820, WSM

(2) Alternator

Armature Coil
1. Check the continuity between the commutator and armature coil
core with an ohmmeter.
2. If it conducts, replace the armature.
3. Check the continuity between the segments of the commutator
with an ohmmeter.
4. If it does not conduct, replace the armature.
Bearing
1. Check the bearing for smooth rotation.
2. If it does not rotate smoothly, replace it.
Stator
1. Measure the resistance across each lead of the stator coil with
an ohmmeter.
2. If the measurement is not within factory specification, replace it.
3. Check the continuity across each stator coil lead and core with
an ohmmeter.
4. If the measurement is not within the factory specifications,
replace it.
Resistance Factory specification
Rotor
1. Measure the resistance across the slip rings with an ohmmeter.
2. If the resistance is not the factory specification, replace it.
3. Check the continuity across the slip ring and core with an
ohmmeter.
4. If the measurement is not within the factory specifications,
replace it.
Resistance Factory specification
9-S44
ELECTRICAL SYSTEM
9Y1210272ELS0062US0
WSM000001ELS0039US0
Less than 1.0 Ω
WSM000001ELS0040US0
2.9 Ω
WSM000001ELS0041US0
(EU)
KiSC issued 07, 2011 A