Operation Manual

BX25. RCK54(P)-23BX. RCK60B-23BX. LA240. BT601. WSM
FRONT LOADER
4. TIGHTENING TORQUES
[1] GENERAL USE SCREWS, BOLTS AND NUTS (FOR FRONT LOADER
AND BACKHOE)
Screws, bolts, and nuts whose tightening torques are not specified in this Workshop Manual should be
tightened
according to the table below.
Indication on top of
bolt
0
@
No-grade or 4T
ill
@
7T or Property class 8.8
®
@
9Tor
Property class 10.9
Material
of opponent
part
Ordinariness
Aluminum
Ordinariness Aluminum
Ordinariness
~t
Diameter
N'm
kgf·m IbNt
N'm
kgf·m IbHt
N'm
kgf·m
IbHt
N'm
kgf·m IbHt
N'm
kgf·m
IbHt
M6
(6 mm. 0.24 in.)
7.9
to
9.3
0.80
to
0.95
5.8
to
6.8
7.9
to
8.8
0.80
to
0.90
5.8
to
6.5
9.81
to
11.2
1.00
to
1.15
7.24
to
8.31
7.9
to
8.8
0.80
to
0.90
5.8
to
6.5
12.3
to
14.2
1.25
to
1.45
9.05
to
10.4
M8
(8 mm. 0.31 in.)
18
to
I 20
1.8
to
2.1
13
to
15
17
to
19
1.7
to
2.0
13
to
14
24
to
27
2.4
to
2.8
18
to
20
18
to
20
1.8
to
2.1
13
to
15
30
to
34
3.0
to
3.5
22
to
25
M10
(10 mm. 0.39 in.)
40
to
45
4.0
to
4.6
29
to
33
32
to
34
3.2
!
to
3.5
24
to
25
48 4.9
to to
55
I 5.7
36
to
41
40
to
44
I
4.0
to
4.5
IT
to
32
61
to
70
6.2
to
7.2
45
to
52
M12
(12 mm. 0.47 in.)
63
to
72
6.4
to
7.4
47
to
53
-
-
-
78
to
90
7.9
to
9.2
58
to
66
63
to
72
6.4
to
7.4
47
to
53
103
to
117
10.5
to
12.0
76.0
to
86.7
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
-
197
to
225
20.0
to
23.0
145
to
166
-
-
260
to
304
26.5
to
31.0
192
to
224
M18
(18 mm. 0.71 in.)
246
to
284
25.0
to
29.0
181
to
209
- -
275
to
318
28.0
to
32.5
203
to
235
-
344
to
402
35.0
to
41.0
254
to
296
M20
(20 mm. 0.79 in.)
334
to
392
34.0
to
40.0
246
to
289
-
3
t
:8
431
37.5
to
44.0
272
to
318
- -
-
491
to
568
50.0
to
58.0
362
to
419
W1034542
[2] STUD BOLTS
Material of opponent
part
Ordinariness
Aluminum
~t
Diameter
N'm
kgf·m IbHt
N'mI
kgf'm
IbHt
M8
(8 mm, 0.31 in.)
12
to
15
1.2
to
1.6
8.7
to
11
8.9
to
11
0.9
to
1.2
6.5
to
8.6
M10
(10
mm, 0.39 in.)
25
to
31
2.5
to
3.2
18
to
23
20
to
25
2.0
to
2.6
15
to
18
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
6.3
to
7.5
46
to
54
-
-
M16
(16
mm. 0.63 in.)
98.1
to
112
10.0
to
11.5
72.4
to
83.1
-
-
-
M18
(18 mm. 0.71 in.)
172
to
201
71 t
20.5
'27 to
148
-
-
W1048139
8-S6