Kubota D650-B Handbuch Seite 182

CYLINDER LINER
[AJ Measuring points of cylinder liner
1-(1,.--,
.
-'21~
I
-(31-';
-
OOllP083
C019F066
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Checking Wear of Cylinder Liner
1) Set a cylinder gauge and adjust it to the reference value of
the cylinder liner with an outside micrometer.
2) To find out the maximum wear, measure the diameters at
six points on the cylinder liner with the cylinder gauge, as
shown below.
• When 'the cylinder liner is worn beyond the allowable
limit, bore and hone it by 0.5 mm (0.0197 in.).
1) For the finish dimensions of the cylinder liners, refer to
the table below.
2) The cylinder liner which has been oversized by 0.5 mm
(0.0197 inJ should use a piston and ring of the same
oversize. (See the Table 2)
• When the oversized cylinder liner is worn beyond the
allowable limit, replace the cylinder liner, and bore and
hone it.
11) Top
(2)
Middle
(3)
Bottom (Skirt!
la) Right-angle to the piston pin
(b)
Parallel to the piston pin
Table 1
Oversized Cylinder Liner Finishing
64.500 to 64.519 mm
2.5393 to 2.5401 in.
68.500 to 68.519 mm
2.6968 to 2.6976 in.
L...- - - -..
--+----..---.....
- - - - - - - - i
Hone to 1.2 to 2 IJ,R max.
72.500 to 72.519 mm
2.8543 to 2.8550 in.
'\l\lV
75.500 to 75.519 mm
2.9724 to 2.9732 in.
Table 2
1M;d~~-oversi~~Partname
I..
Code number ..
1
Mark
! ..
1-
0 . 5
m~=-tPis;;-~05- ·---,·15281~191-1
t - .- - - - '
'
0650-B ' . 0.0197
in.lPi~in9
05 assy .15361-2109-1
i
0.5 mm Piston 05 15261-2191-1
0750-B . . . _ - ­
I
• 0.0197 In. Piston ring 05 assy 15271-2109-1
i
0508
10850-8
OSmm .Pi'tenOS
15901-2191T
.OH850-B 0.0197 in.' Piston ring 05 assy , 15901-2109-1
t:::-r -_.
Piston 15531-2191-1
L:J
~:~l~~in_. ~ ~ P : : - - i s :
. . t -=-on---·-"'C-cc··
. .
..--/- ..
:..c-'---..-'--..
-:L _____'
186
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