Standard Tightening Torque - Komatsu D475A-5 Shop Manual

FOREWORD

STANDARD TIGHTENING TORQUE

STANDARD TIGHTENING TORQUE TABLE (WHEN USING TORQUE WRENCH)
★ In the case of metric nuts and bolts for which there is no special instruction, tighten to the torque given in
the table below.
Thread diameter
of bolt
mm
6
8
10
12
14
16
18
20
22
24
27
30
33
36
39
Thread diameter
of bolt
mm
6
8
10
12
TABLE OF TIGHTENING TORQUES FOR FLARED NUTS
★ In the case of flared nuts for which there is no
special instruction, tighten to the torque given in
the table below.
Thread diameter
mm
14
18
22
24
30
33
36
42
00-12
Width across
flats
mm
10
13
17
19
22
24
27
30
32
36
41
46
50
55
60
Width across
flats
mm
10
13
14
27
Width across flat
mm
19
24
27
32
36
41
46
55
STANDARD TIGHTENING TORQUE
Tightening torque
Nm
11.8 – 14.7
27 – 34
59 – 74
98 – 123
153 – 190
235 – 285
320 – 400
455 – 565
610 – 765
785 – 980
1150 – 1440
1520 – 1910
1960 – 2450
2450 – 3040
2890 – 3630
Tightening torque
Nm
5.9 – 9.8
13.7 – 23.5
34.3 – 46.1
74.5 – 90.2
Sealing surface
Tightening torque
Nm
24.5 ± 4.9
49 ± 19.6
78.5 ± 19.6
137.3 ± 29.4
176.5 ± 29.4
196.1 ± 49
245.2 ± 49
294.2 ± 49
kgm
1.2 – 1.5
2.8 – 3.5
6 – 7.5
10 – 12.5
15.5 – 19.5
23.5 – 29.5
33 – 41
46.5 – 58
62.5 – 78
80 – 100
118 – 147
155 – 195
200 – 250
250 – 310
295 – 370
kgm
0.6 – 1.0
1.4 – 2.4
3.5 – 4.7
7.6 – 9.2
SAD00483
kgm
2.5 ± 0.5
5 ± 2
8 ± 2
14 ± 3
18 ± 3
20 ± 5
25 ± 5
30 ± 5