Kubota SM-E3B Series Workshop Manual page 137

SM-E3B SERIES WSM
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.
Factory spec.
Slip ring O.D.
Allowable limit
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 defective, replace it.
Factory spec.
Brush length
Allowable limit
Rectifier
1. Check the continuity across each diode of rectifier with resistance
range of circuit tester.
2. The rectifier is normal if the diode in the rectifier conducts in one
direction and does not conduct in the reverse direction.
IC Regulator
1. Check the continuity across the B terminal (2) and the F terminal
(1) of IC regulator with resistance range of circuit tester.
2. The IC regulator is normal if the conducts in one direction and
does not conduct in the reverse direction.
(1) F Terminal
S-76
DIESEL ENGINE
14.4 mm
0.567 in.
14.0 mm
0.551 in.
W1020208
10.0 mm
0.394 in.
8.4 mm
0.33 in.
W1020329
W1020452
(2) B Terminal
W1020645
KiSC issued 03, 2011 A