Tightening Torque Chart - Kubota Z231KW-AU Operator's Manual

TIGHTENING TORQUE CHART

TIGHTENING TORQUE CHART
Thread size d Hex. bolt head
(mm) size B (mm)
M8 12 or 13
M10 14 or 17
M12 17 or 19
M14 19 or 22
NOTE :
• Figure [7] on the top of the bolt indicates that the bolt is made of special material.
• Before tightening, check the figure on top of the bolt.
(1) Scale
Z231KW-AU
No mark
lbf⋅ft N⋅m
13.0-15.2 17.8-20.6
(14.1 ± 1.1) (19.2 ± 1.4)
28.9-33.3 39.3-45.1
(31.1 ± 2.2) (42.2 ± 2.9)
46.3-53.5 62.8-72.6
(49.9 ± 3.6) (67.7 ± 4.9)
79.6-92.6 107.9-125.5
(81.6 ± 6.5) (116.7 ± 8.8)
kgf⋅m lbf⋅ft
1.9-2.1 17.5-20.3
(2.0 ± 0.1) (18.9 ± 1.4)
4.0-4.6 35.4-41.2
(4.3 ± 0.3) (38.3 ± 2.9)
6.4-7.4 57.1-66.5
(6.9 ± 0.5) (61.8 ± 4.7)
11.0-12.8 91.1-108.5
(11.9 ± 0.9) (99.8 ± 8.7)
ADJUSTMENT
7T
N⋅m kgf⋅m
23.5-27.5 2.4-2.8
(25.5 ± 2.0) (2.6 ± 0.2)
48.1-55.9 4.9-5.7
(52.0 ± 3.9) (5.3 ± 0.4)
77.6-90.2 8.0-9.2
(83.9 ± 6.3) (8.6 ± 0.6)
123.6-147.0 12.6-15.0
(135.3 ± 11.7) (13.8 ± 1.2)
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