Kubota B1710, Руководство по ремонту

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1-S44
B1710 · B2110 · B2410 · B2710, WSM ENGINE
(D) Crankshaft
Crankshaft Side Clearance
1. Set a dial indicator with its tip on the end of the crankshaft.
2. Measure the side clearance by moving the crankshaft to the front
and rear.
3. If the measurement exceeds the allowable limit, replace the
thrust bearings.
4. If the same size bearing is useless because of the crankshaft
journal wear, replace it with an oversize one referring to the table
and figure.
(Reference)
• Oversize thrust bearing
• Oversize dimensions of crankshaft journal
W10317070
Crankshaft Alignment
1. Support the crankshaft with V blocks on the surface plate at both
end journals.
2. Set a dial indicator with its tip on the intermediate journal.
3. Measure the crankshaft alignment.
4. If the measurement exceeds the allowable limit, replace the
crankshaft.
W10330010
Crankshaft side
clearance
Factory spec.
0.15 to 0.31 mm
0.0059 to 0.0122 in.
Allowable limit
0.50 mm
0.0197 in.
Oversize Bearing Code Number Marking
0.2 mm
0.008 in.
Thrust bearing 1 02 15521-23951 020 OS
Thrust bearing 2 02 19202-23971 020 OS
0.4 mm
0.016 in.
Thrust bearing 1 04 15521-23961 040 OS
Thrust bearing 2 04 19202-23981 040 OS
Oversize
Dimension
0.2 mm
0.008 in. 0.4 mm
0.016 in.
A
28.20 to 28.25 mm
1.1102 to 1.1122 in. 28.40 to 28.45 mm
1.1181 to 1.1201 in.
B
51.5 to 51.7 mm
2.028 to 2.035 in. 51.6 to 51.8 mm
2.031 to 2.039 in.
C
2.3 to 2.7 mm radius
0.091 to 0.106 in. radius 2.3 to 3.7 mm radius
0.091 to 0.106 in. radius
(0.8-S)
The crankshaft journal must be fine-finished to higher than
∇∇∇∇
Crankshaft alignment Allowable limit
0.02 mm
0.0008 in.
KiSC issued 11, 2006 A