Maintenance
144
Checking the bolted joints
The table below contains the torques for nuts and bolts. These may only be tightened with a torque wrench. Miss-
ing torques can be requested from KUBOTA.
Tightening torque for screws
Nm (
kgf
#
m
)
Note:
Use screws 9 T for canopy assembly, but tighten with torque indicated for screws 7 T.
Tightening torque for hose clamps
4 T (4.6)
7 T (8.8)
9 T (9.8-10.9)
M 6
7.8~9.3
(0.8~0.95)
9.8~11.3
(1.0~1.15)
12.3~14.2
(1.25~1.45)
M 8
17.7~20.6
(1.8~2.1)
23.5~27.5
(2.4~2.8)
29.4~34.3
(3.0~3.5)
M 10
39.2~45.1
(4.0~4.6)
48.1~55.9
(4.9~5.7)
60.8~70.6
(6.2~7.2)
M 12
62.8~72.6
(6.4~7.4)
77.5~90.2
(7.9~9.2)
103.0~117.7
(10.5~12.0)
M 14
107.9~125.5
(11.0~12.8)
123.6~147.1
(12.6~15.0)
166.7~196.1
(17.0~20.0)
M 16
166.7~191.2
(17.0~19.5)
196.1~225.6
(20.0~23.0)
259.9~304.0
(26.5~31.0)
M 20
333.4~392.3
(34.0~40.0)
367.7~431.5
(37.5~44.0)
519.8~568.8
(53.0~58.0)
The maximum torque of the plastic trim bolted connections between the operator’s place and the en-
gine compartment may not exceed 21 Nm. When tightening the screws with a torque higher than
21 Nm, the plastic trim helicoil inserts will be loosened or destroyed.
Size
Code #
Hydraulic oil
Water
Air
10-16
69741-7287-0
5.4 Nm
3.0 Nm
2.0 Nm
13-20
69481-1116-0
5.4 Nm
3.0 Nm
2.0 Nm
16-25
69741-7281-0
5.4 Nm
4.5 Nm
2.0 Nm
22-32
69741-7284-0
5.4 Nm
4.5 Nm
2.0 Nm
25-40
69741-7282-0
5.4 Nm
4.5 Nm
2.0 Nm
40-60
69481-1518-0
5.4 Nm
4.5 Nm
2.0 Nm
32-50
69741-7283-0
5.4 Nm
4.5 Nm
2.0 Nm
50-70
69741-7285-0
5.4 Nm
4.5 Nm
2.0 Nm
