Crankshaft - Kubota Z400-B Handbuch

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[5] CRANKSHAFT
Crankshaft End
1. Set a dial indicator with its indicator tip touching the
end of the crankshaft.
2. Measure the end play by moving the crankshaft to the
front and rear.
3. If the play exceeds the allowable limit, replace the side
bearing.
4. If the same size bearing is useless because of the crank ­
shaft journal wear. replace it with an oversize one refer­
ring to the table and the figure.
0.15 to 0.31 mm,
0.0059 to 0.0122 in.
End play
(Reference)
B
• Oversize bearings:
0.4 mm
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Side bearing 1 04 15261-23961
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040 OS
0.016 in.
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Side bearing 2 04
I
15261-239811 040 OS
Oversize
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Bearing
Code Number
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Marking
0.2 mm
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S ide bearing 1 02
15261-23951 020 OS I
0.008 in.
Side bearing 202
15261-23971
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020 OS
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• Oversize dimensions of crankshaft:
Dimension
(A) 0.2 mm Oversize 23.40 to 23.45 mm
(0.008 in.) (0.9134 to 0.9154 in.)
lill,l Fool;
0.4 mm Oversize 23.80 to 23.85 mm
(0.016 in.) (0.9213 to 0.9232 in.)
(8) 0.2 mm Oversize
46.1 to 46.3 mm
(0.008 in.) (1.815 to 1.823 in.)
0.4 mm Oversize 46.3 to 46.5 mm
(0.Q16 in.) (1.823 to 1.831 in.)
(e)
1.8 to 2.2 mm (0.071 to 0.087 in.)
• Finely finish the contact face to the bearing, to the higher
than
\l\lilV
(O.4S)
Crankshaft Alignment
1. Support the crankshaft with V blocks on the surface plate
at both end journals.
2. Set a dial indicator with its indicator tip touching the
. intermediate journal.
3. Rotate the crankshaft on the V blocks and get the ec ­
centricity (half of the measurement).
4. If the eccentricity exceeds the allowable limit, replace the
crankshaft
0.02 mm,
specif icat io n
Factory
0.0008 in.
Allowable
limit
IJJ09FO;:)
S-99
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