Cylinder - Kubota SM-E3B Series Workshop Manual

SM-E3B SERIES WSM

(5) Cylinder

Replacing Crankshaft Sleeve (Z482-E3B, D722-E3B, D782-E3B)
1. Remove the used crankshaft sleeve (2).
2. Set the sleeve guide (3) to the crankshaft (1).
3. Heat a new sleeve to a temperature between 150 and 200 °C
(302 and 392 °F), and fix the sleeve to the crankshaft as shown
in figure.
4. Press fit the sleeve using the auxiliary socket for pushing (4).
(Refer to "SPECIAL TOOLS".)
NOTE
• Mount the sleeve with its largely chamfered surface facing
outward.
• Should heating is not enough, a sleeve might stop halfway,
so careful.
(1) Crankshaft
(2) Crankshaft Sleeve
Cylinder Wear
1. Measure the cylinder liner I.D. at the six positions (see figure)
with a cylinder gauge to find the maximum and minimum I.D.'s.
2. Get the difference (Maximum wear) between the maximum and
the minimum I.D.'s.
3. If the wear exceeds the allowable limit, bore and hone to the
oversize dimension. (Refer to "Correcting Cylinder".)
4. Visually check the cylinder wall for scratches. If deep scratches
are found, the cylinder should be bored. (Refer to "Correcting
Cylinder".)
Factory
spec.
Cylinder liner I.D.
Allowable
limit
(A) Top
(B) Middle
(C) Bottom (Skirt)
S-70
DIESEL ENGINE
(3) Sleeve Guide
(4) Auxiliary Socket for Pushing
W1048540
Z482-E3B
67.000 to 67.019 mm
D722-E3B
2.6378 to 2.6385 in.
D782-E3B
Z602-E3B 72.000 to 72.019 mm
D902-E3B 2.8347 to 2.8353 in.
Z482-E3B
67.150 mm
D722-E3B
2.6437 in.
D782-E3B
Z602-E3B 72.150 mm
D902-E3B 2.8406 in.
(a) Right-angled to Piston Pin
(b) Piston Pin Direction
W10360060
KiSC issued 03, 2011 A