S-76
V3300-E2B, V3300-T-E2B, WSM
DIESEL ENGINE
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 and core with an ohmmeter.
4. If infinity is not indicated, replace it.
W1076422
Slip Ring
1. Check the slip ring for score.
2. If scored, correct with an sand 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.
W1076592
Brush Wear
1. Measure the brush length (A) 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 defective, replace it.
W1076714
Resistance Factory spec. 2.8 to 3.3 Ω
Slip ring O.D.
Factory spec.
22.7 mm
0.894 in.
Allowable limit
22.1 mm
0.870 in.
Brush length (A)
Factory spec.
18.5 mm
0.728 in.
Allowable limit
5.0 mm
0.197 in.
(A) Brush Length
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