ELECTRICAL SYSTEM
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
6-S33
(2) Alternator
Bearing
1. Check the bearing for smooth rotation.
2. If it does not rotate smoothly, replace it.
WSM000001ELS0039US0
Stator
1. Measure the resistance across each lead of the stator coil with
resistance range of circuit tester.
2. If the measurement is not within factory specification, replace it.
3. Check the continuity across each stator coil lead and core with
resistance range of circuit tester.
4. If infinity is not indicated, replace it.
9Y1210855ELS0024US0
Rotor
1. Measure the resistance across the slip rings.
2. If the resistance is not the factory specification, replace it.
3. Check the continuity across the slip ring and core with
resistance range of circuit tester.
4. If infinity is not indicated, replace it.
9Y1210855ELS0025US0
Slip Ring
1. Check the slip ring for score.
2. If scored, correct with an emery paper or on a lathe.
3. Measure the O.D. of slip ring with vernier calipers.
4. If the measurement is less than the allowable limit, replace it.
9Y1210855ELS0026US0
Brush Wear
1. Measure the brush length with vernier calipers.
2. If the measurement is less than allowable limit, replace it.
3. Make sure that the brush moves smoothly.
4. If the brush is damaged, replace it.
9Y1210855ELS0027US0
Resistance Factory specification
Less than
1.0 Ω
Resistance Factory specification 2.9 Ω
Slip ring O.D.
Factory specification
14.4 mm
0.567 in.
Allowable limit
14.0 mm
0.551 in.
Brush length
Factory specification
10.5 mm
0.413 in.
Allowable limit
8.4 mm
0.331 in.
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