Kubota SM-E4B Series Workshop Manual page 129

SM-E4B SERIES, WSM
Oil Clearance between Crankshaft Journal and Crankshaft
Bearing 2 and Crankshaft Bearing 3
1. Put a strip of plastigage on the center of the journal.
2. Install the bearing case and tighten the bearing case screws 1
to the specified torque, and remove the bearing case again.
3. Measure the amount of the flattening with the scale, and get the
oil clearance.
4. If the oil clearance exceeds the allowable limit, replace the
crankshaft bearing 2 (crankshaft bearing 3).
5. If the same size bearing is useless because of the crankshaft
journal wear, replace it with an undersize one referring to the
table and figure.
NOTE
• Be sure not to move the crankshaft while the bearing case
screws are tightened.
Oil clearance between
Factory specification
crankshaft journal and
crankshaft bearing 2
Allowable limit
(crankshaft bearing 3)
Crankshaft journal O.D.
Factory specification
(Flywheel side)
Crankshaft bearing 2 I.D. Factory specification
Factory
Crankshaft journal O.D.
specifi-
(Intermediate)
cation
Factory
Crankshaft bearing 3 I.D. specifi-
cation
1-S65
ENGINE
0.028 to 0.059 mm
0.0011 to 0.0023 in.
0.20 mm
0.0079 in.
43.934 to 43.950 mm
1.7297 to 1.7303 in.
43.978 to 43.993 mm
1.7315 to 1.7320 in.
Z482-E4B
39.934 to 39.950 mm
D722-E4B
1.5722 to 1.5728 in.
D782-E4B
Z602-E4B 43.934 to 43.950 mm
D902-E4B 1.7297 to 1.7303 in.
Z482-E4B
39.978 to 39.993 mm
D722-E4B
1.5740 to 1.5745 in.
D782-E4B
Z602-E4B 43.978 to 43.993 mm
D902-E4B 1.7315 to 1.7320 in.
(To be continued)
KiSC issued 01, 2013 A