Kubota SM-E4B Series Workshop Manual page 128

SM-E4B SERIES, WSM
(Continued)
(Reference)
• Undersize crankshaft bearing 1
Undersize Models
Z482-E4B
D722-E4B
0.20 mm
D782-E4B
0.0079 in.
Z602-E4B
D902-E4B
Z482-E4B
D722-E4B
0.40 mm
D782-E4B
0.016 in.
Z602-E4B
D902-E4B
• Undersize dimensions of crankshaft journal
Undersize Models
Dimension
All models
A 0.071 to 0.086 in.radius
*Dimension
All models
B 0.040 to 0.059 in. relief
Z482-E4B 39.734 to 39.750 mm
D722-E4B
D782-E4B 1.5644 to 1.5649 in. dia.
Dimension
C
43.734 to 43.750 mm
Z602-E4B
D902-E4B
1.7219 to 1.7224 in. dia.
The crankshaft journal must be fine-finished to higher than Rmax. = 0.8S
*Holes to be de-burred and edges rounded with 1.0 to 1.5 mm
(0.040 to 0.059 in.) relief.
Replacing Crankshaft Bearing 1
(When removing)
1. Press out the used crankshaft bearing 1 using a crankshaft
bearing 1 replacing tool. (Refer to "SPECIAL TOOLS".)
(When installing)
1. Clean a new crankshaft bearing 1 and crankshaft journal bore,
and apply engine oil to them.
2. Using a crankshaft bearing 1 replacing tool, press in a new
bearing 1 (2) so that its seam (1) directs toward the exhaust
manifold side. (See figure.)
Dimension (A) Factory specification
(1) Seam
(2) Crankshaft Bearing 1
(3) Cylinder Block
1-S64
Code
Bearing
Number
15861-23910
Crankshaft
bearing 1 02
1G460-23910
15861-23920
Crankshaft
bearing 1 04
1G460-23920
0.20 mm
0.0079 in.
1.8 to 2.2 mm radius 1.8 to 2.2 mm radius
0.071 to 0.086 in.radius
1.0 to 1.5 mm relief 1.0 to 1.5 mm relief
0.040 to 0.059 in. relief
39.534 to 39.550 mm
dia.
1.5565 to 1.5570 in. dia.
43.534 to 43.550 mm
dia.
1.7140 to 1.7145 in. dia.
9Y1210785ENS0092US0
0 to 0.3 mm
0 to 0.01 in.
(A) Dimension
(B) 0.37 rad (21 °)
[a] Z482-E4B, D722-E4B, D782-E4B
[b] Z602-E4B, D902-E4B
9Y1210785ENS0093US0
ENGINE
Marking
020 US
040 US
0.40 mm
0.016 in.
dia.
dia.
KiSC issued 01, 2013 A