Kubota WSM OC60-E2 Workshop Manual page 100

OC60-E2, OC95-E2, WSM
Correcting Crank Pin
If the standard-size crank pin bearing cannot be employed due
to excessive wear of the crank pin, use an undersize crank pin
bearing.
For undersize crank pin bearing use, be sure to correct the
crank pin.
1. Grind the corner radius (1) of the crank pin precisely.
2. The crank pin surface must be fine-finished to higher than
(0.4-S).
[Undersize crank pin (0.25 US)]
Undersize crank pin Factory
O.D. spec.
[Undersize crank pin bearing (0.25 US)]
size Part Name
0.25 mm Undersize crank
U.S. pin bearing
Dimension (a) Factory spec.
Crankshaft Side Clearance
1. After a metal plate to the cylinder.
2. Set a dial gauge and push the shaft and measure the side
clearance.
3. If the clearance exceeds the allowable limit, replace the
bearing.
If the clearance still exceeds the allowable limit after
replacing the bearing with new one. Use an over size
bearing.
Size Part Name
Side Bearing 1
0.25 mm
O.S.
Side Bearing 2
Factory spec.
Side clearance of
crankshaft
Allowable limit
S-48
35.709 to 35.725 mm
OC60-E2
1.4059 to 1.4065 in.
39.709 to 39.725 mm
OC95-E2
1.5633 to 1.5640 in.
Mark Model Code No.
OC60-E2 11420-22961
U.S.
0.25
OC95-E2 11460-22961
2.8 to 3.2 mm radius
0.1102 to 0.1260 in. radius
0000009284E
Model Code No.
OC60-E2 11420-23951
OC95-E2 11460-23951
OC60-E2 11420-23971
OC95-E2 11460-23971
0.05 to 0.20 mm
0.0020 to 0.0079 in.
0.35 mm
0.0138 in.
0000009295E
ENGINE