Kubota M9540, Workshop Manual, Page: 31 / 619

G-12
M8540, M9540, WSM G GENERAL
5. TIGHTENING TORQUES
Screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual should be tightened
according to the table below.
[1] GENERAL USE SCREWS, BOLTS AND NUTS
W1034542
[2] STUD BOLTS
W1048139
Indication on top of
bolt
No-grade or 4T 7T 9T
Material of bolt SS400, S20C S43C, S48C
SCr435,
SCM435
Material of opponent
part
Ordinariness Aluminum Ordinariness Aluminum Ordinariness
Unit
Diameter
N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft
M6
(6 mm, 0.24 in.)
7.84
to
9.31
0.80
to
0.95
5.79
to
6.87
7.84
to
8.83
0.80
to
0.90
5.79
to
6.51
9.81
to
11.2
1.00
to
1.15
7.24
to
8.32
7.84
to
8.83
0.80
to
0.90
5.79
to
6.51
12.3
to
14.2
1.25
to
1.45
9.05
to
10.5
M8
(8 mm, 0.31 in.)
17.7
to
20.5
1.8
to
2.1
13.0
to
15.2
16.7
to
19.6
1.7
to
2.0
12.3
to
14.5
23.6
to
27.4
2.4
to
2.8
17.4
to
20.2
17.7
to
20.6
1.8
to
2.1
13.0
to
15.2
29.4
to
34.3
3.0
to
3.5
21.7
to
25.3
M10
(10 mm, 0.39 in.)
39.2
to
45.0
4.0
to
4.6
29.0
to
33.2
31.4
to
34.3
3.2
to
3.5
23.1
to
25.3
48.1
to
55.8
4.9
to
5.7
35.5
to
41.2
39.2
to
44.1
4.0
to
4.5
28.9
to
32.5
60.8
to
70.5
6.2
to
7.2
44.9
to
52.1
M12
(12 mm, 0.47 in.)
62.8
to
72.5
6.4
to
7.4
46.3
to
53.5
– – –
77.5
to
90.1
7.9
to
9.2
57.2
to
66.5
62.8
to
72.5
6.4
to
7.4
46.3
to
53.5
103
to
117
10.5
to
12.0
76.0
to
86.8
M14
(14 mm, 0.55 in.)
108
to
125
11.0
to
12.8
79.6
to
92.5
– – –
124
to
147
12.6
to
15.0
91.2
to
108
– – –
167
to
196
17.0
to
20.0
123
to
144
M16
(16 mm, 0.63 in.)
167
to
191
17.0
to
19.5
123
to
141
– – –
196
to
225
20.0
to
23.0
145
to
166
– – –
260
to
303
26.5
to
31.0
192
to
224
M18
(18 mm, 0.71 in.)
245
to
284
25.0
to
29.0
181
to
210
– – –
275
to
318
28.0
to
32.5
203
to
235
– – –
343
to
401
35.0
to
41.0
254
to
297
M20
(20 mm, 0.79 in.)
334
to
392
34.0
to
40.0
246
to
289
– – –
368
to
431
37.5
to
44.0
272
to
318
– – –
490
to
568
50.0
to
58.0
362
to
420
Material of opponent
part
Ordinariness Aluminum
Unit
Diameter
N·m kgf·m lbf·ft N·m kgf·m lbf·ft
M8
(8 mm, 0.31 in.)
11.8
to
15.6
1.2
to
1.6
8.68
to
11.5
8.82
to
11.8
0.90
to
1.2
6.51
to
8.67
M10
(10 mm, 0.39 in.)
24.6
to
31.3
2.5
to
3.2
18.1
to
23.1
19.7
to
25.4
2.0
to
2.6
14.5
to
18.8
M12
(12 mm, 0.47 in.)
29.5
to
49.0
3.0
to
5.0
21.7
to
36.1
31.4 3.2 23.1
M14
(14 mm, 0.55 in.)
62
to
73.5
6.3
to
7.5
45.6
to
54
– – –
M16
(16 mm, 0.63 in.)
98.1
to
112.8
10.0
to
11.5
72.3
to
83.2
– – –
M18
(18 mm, 0.71 in.)
172
to
201.1
17.5
to
20.5
126.5
to
148.2
– – –
KiSC issued 09, 2008 A