Tightening Torque Chart - Kubota T1880 Operator's Manual

54 PERIODIC SERVICE

TIGHTENING TORQUE CHART

Thread Hexa-Bolt
size Head size
d (mm) B (mm)
M8 12 or 13
M10 14 or 17
M12 17 or 19
M14 19 or 22
A Figure "7" on the top of the bolt indicates that the bolt is of special material.
A Before tightening, check the figure on the top of bolt.
No mark
ft-lbs 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
(86.1 6.5) (116.7 8.8)
kgf-m ft-lbs
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)
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)