Kubota XN12-8, Operation Manual

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Maintenance
Service Data
Table of Tightening Torques
Nuts and Bolts (Grade ISO10.9)
Unless otherwise specified, tighten the nuts and bolts to the torques listed in table below.
●
The tightening torques for installation of plastic caps are not listed in the table below. To
understand more details, please consult with your sales or service dealer. The excessive
tightening torque will cause damages.
●
If the replacement is required, replace with nuts and bolts of same dimensions and specifications.
Category
Width across flats
(b)
Dimension (a) X
pitch
Tightening torque
Common connection
mm mm N·m Ft-lb
Coarse thread
10 M6 X 1.0 9,8
±
0,5 7, 2
±
0,4
12, 13 M8 X 1.25 22,6
±
1,1 16,6
±
0,8
14, 17 M10 X 1.5 47,1
±
2,4 34, 7
±
1,7
17,19 M12 X 1.75 83,4 ± 4,1 61,5 ± 3,0
19, 22 M14 X 2,0 134,4
±
6,7 99,1
±
4,9
22, 24 M16 X 2.0 207,9
±
10,4 153, 3
±
7, 7
27, 30 M20 X 2, 5 410,9
±
20,5 303,1
±
15, 1
Fine thread
12, 13 M8 X 1.0 24,5 ± 1,2 18,1 ± 0,9
14, 17 M10 X 1.25 50 ± 2, 5 36,9 ± 1,8
17, 19 M12 X 1.5 87,3
±
4,3 64,4
±
3, 2
19, 22 M14 X 1.5 135, 3
±
6,8 99,8
±
5,0
22, 24 M16 X 1.5 220,6 ± 11 162,7 ± 8, 1
27, 30 M20 X 1.5 452, 1 ± 22,6 333,4 ± 16, 6
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