Komatsu F30791, Руководство по ремонту

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STANDARD TIGHTENING TORQUE
STANDARD TIGHTENING TORQUE
00-8
PC20R-8 PC27R-8
The following charts give the standard tightening torques of bolts and nuts. Exceptions are given in sections of « Di-
sassembly and Assembly ».
1. STANDARD TIGHTENING TORQUE OF BOLTS AND NUT
Thread diameter
of bolts
(mm)
Pitch of
bolts
(mm)
Width across flat
(mm)
kgm Nm kgm Nm
6
8
10
12
14
1
1.25
1.5
1.75
2
10
13
17
19
22
5
6
8
10
12
0.96 w 0.1
2.3 w 0.2
4.6 w 0.5
7.8 w 0.8
12.5 w 1
9.5 w 1
23 w 2
45 w 4.9
77 w 8
122 w 13
1.3 w 0.15
3.2 w 0.3
6.5 w 0.6
11 w 1
17.5 w 2
13.5 w 1.5
32.2 w 3.5
63 w 6.5
108 w 11
172 w 18
16
18
20
22
24
2
2.5
2.5
2.5
3
24
27
30
32
36
14
14
17
17
19
19.5 w 2
27 w 3
38 w 4
52 w 6
66 w 7
191 w 21
262 w 28
372 w 40
511 w 57
644 w 70
27 w 3
37 w 4
53 w 6
73 w 8
92 w 10
268 w 29
366 w 36
524 w 57
719 w 80
905 w 98
27
30
33
36
39
3
3.5
3.5
4
4
41
46
50
55
60
19
22
24
27
Ð
96 w 10
131 w 14
177 w 20
230 w 25
295 w 33
945 w 100
1287 w 140
1740 w 200
2250 w 250
2900 w 330
135 w 15
184 w 20
250 w 27
320 w 35
410 w 45
1329 w 140
1810 w 190
2455 w 270
3150 w 350
4050 w 450
This torque table does not apply to bolts or nuts which have to fasten nylon or other parts non-ferrous metal washer.
. Nm (Newton meter): 1 Nm = 0.102 kgm