Komatsu AX20 - Service Data (Continued); Torque List Specifications

28. SERVICE DATA
4-9
28.4 TORQUE LIST
For unspecified bolts and nuts, use the torque specifications in this list.
Select the proper torque corresponding to the width across flats (b) of bolts
and nuts.
When replacing bolts and nuts, always use genuine
Komatsu
Forklift parts
that match the previous installation in size.
Thread diameter
of bolt (mm)
(a)
Width across
flat (mm)
(b)
Tightening torque
ft/lb kgfm Nm
6
8
10
12
14
10
13
17
19
22
9.73 ± 1.03
23.2 ± 2.1
48.5 ± 5.0
82.6 ± 7.2
131 ± 14
1.35 ± 0.15
3.2 ± 0.3
6.7 ± 0.7
11.5 ± 1.0
18.0 ± 2.0
13.2 ± 1.4
31.4 ± 2.9
65.7 ± 6.8
112 ± 9.8
177 ± 19
16
18
20
22
24
24
27
30
32
36
206 ± 21
282 ± 29
405 ± 43
549 ± 58
684 ± 72
28.5 ± 3
39 ± 3
56 ± 6
76 ± 8
94.5 ± 10
279 ± 29
383 ± 39
549 ± 58
745 ± 78
927 ± 98
27
30
33
36
39
41
48
50
55
60
973 ± 100
1,270 ± 140
1,630 ± 180
2,030 ± 210
2,420 ± 250
135 ± 15
175 ± 20
225 ± 25
280 ± 30
335 ± 35
1,320 ± 140
1,720 ± 190
2,210 ± 240
2,750 ± 290
3,280 ± 340