Komatsu PC20R-8 User Manual

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DRIVING TORQUES FOR SCREWS AND NUTS
4.4 DRIVING TORQUES FOR SCREWS AND NUTS
4.4.1 STANDARD DRIVING TORQUES
4.4.2 SPECIFIC DRIVING TORQUES
IMPORTANT
☞
• This driving torque table is not valid for screws or nuts that must lock parts made of nylon or similar
materials onto washers or components made of nylon or nonferrous materials.
★ Nm (Newton metre): 1 Nm = 0.102 kgm
Thread
diameter (mm)
Pitch
(mm)
Spanner size
(mm)
8.8 10.9
kgmNmkgmNm
6
8
10
12
14
1
1.25
1.5
1.75
2
10
13
17
19
22
0.96 ± 0.1
2.3 ± 0.2
4.6 ± 0.5
7.8 ± 0.8
12.5 ± 1
9.5 ± 1
23 ± 2
45 ± 4.9
77 ± 8
122 ± 13
1.3 ± 0.15
3.2 ± 0.3
6.5 ± 0.6
11 ± 1
17.5 ± 2
13.5 ± 1.5
32.2 ± 3.5
63 ± 6.5
108 ± 11
172 ± 18
16
18
20
22
24
2
2.5
2.5
2.5
3
24
27
30
32
36
19.5 ± 2
27 ± 3
38 ± 4
52 ± 6
66 ± 7
191 ± 21
262 ± 28
372 ± 40
511 ± 57
644 ± 70
27 ± 3
37 ± 4
53 ± 6
73 ± 8
92 ± 10
268 ± 29
366 ± 36
524 ± 57
719 ± 80
905 ± 98
27
30
3
3.5
41
46
96 ± 10
131 ± 14
945 ± 100
1287 ± 140
135 ± 15
184 ± 20
1329 ± 140
1810 ± 190
ITEM DESCRIPTION kgm Nm
Engine Front support central nuts
Rear support central nuts
6.75 ± 0.75
6.75 ± 0.75
66 ± 7.3
66 ± 7.3
Front engine supports
Rear engine supports
Engine fastening screws
Engine fastening screws
11 ± 1
6.75 ± 0.75
108 ± 11
66 ± 7.3

Komatsu PC20R-8 Specifications

General

Brand	Komatsu
Model	PC20R-8
Category	Excavators
Language	English