Cylinder - Kubota WSM STV32 Workshop Manual

STV32 · STV36 · STV40, WSM

(5) Cylinder

Replacing Crankshaft Sleeve
1. Remove the used crankshaft sleeve using a special-use puller
set (Code No. 07916-32091).
2. Set the sleeve guide (2) to the crankshaft.
3. Set the stopper (1) to the crankshaft as shown in figure.
4. Heat a new sleeve to a temperature between 150 to 200
(302 to 392 ), and fix the sleeve to the crankshaft as shown
in figure.
5. Press fit the sleeve using the auxiliary socket for pushing (4).
A Mount the sleeve with its largely chamfered surface
facing outward.
(1) Stopper
(2) Sleeve Guide
(3) Crankshaft Sleeve
Cylinder Wear
1. Measure the I.D. of the cylinder 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.
scratches are found, the cylinder should be bored. (Refer to
"Correcting Cylinder".)
Factory
Cylinder I.D.
spec.
Allowable
Maximum wear
limit
A : Top
B : Middle
C : Bottom (Skirt)
1-S61
(4) Auxiliary Socket for Pushing
(5) Crankshaft
0000005520E
83.000 to 83.022 mm
D1503-M
3.26772 to 3.26858 in.
D1703-M 87.000 to 87.022 mm
D1803-M 3.42519 to 3.42606 in.
+0.15 mm
D1503-M
+0.0059 in.
D1703-M +0.15 mm
D1803-M +0.0059 in.
(a) Right-angled to Piston Pin
(b) Piston Pin Direction
0000007510E
KiSC issued 04, 2006 A
ENGINE
If deep