Maintenance
135
Torques in ft.lb
Guidelines for torques (in ft.lb) for self-locking nuts, hexagon bolts and
nuts.
.
*
The friction coefficient of 0.10 applies to oiled sheets, cast iron,
hardened surfaces, greased threads, etc. The higher value of 0.13
applies to dry sheets.
Torques for bolts and nuts with serrated lower edges 10% extra, such
as:
•
Tensilock (K100)
•
Whizlock.
Exceptions to this table are listed in the parts and/or instruction
manual.
Checking bolts and nuts
Check all bolt and nut connections:
Turn all nut and bolt connections up to the point as given in the
chart above:
•
after the first operating hour.
•
regularly (at least weekly).
Torques
Quality
4.6
8.8
10.9
12.9
Friction
*
0.10
0.13
0.10
0.13
0.10
0.13
0.10
0.13
Thread
M5
1.3
1.5
3.7
4.4
5.2
5.9
6.6
7.4
M6
2.2
3.0
6.6
7.4
9.6
11.1
11.1
13.3
M8
5.9
6.6
15.5
18.5
22.9
26.6
26.6
31
M10
11.8
14.0
29.5
36.9
44.3
51.7
51.7
62.7
M12
19.9
23.6
51.7
62.7
77.5
88.6
88.6
107.0
M14
31.0
36.9
84.9
99.6
121.8
143.9
143.9
169.7
M16
48.0
56.1
129.2
155.0
191.9
221.4
221.4
258.3
M18
66.4
81.2
184.5
214.0
258.3
310.0
302.6
361.6
M20
92.3
110.7
258.3
310.0
369.0
442.8
428.0
516.6
M22
125.5
147.6
346.9
413.3
494.5
590.4
575.6
686.3
M24
155.0
184.5
442.8
524.0
634.7
752.8
738.0
870.8
\
WARNING
Nuts and bolts could become loose through vibrations. Check the
nuts and bolts regularly to prevent damage to the machine and
possible injury, especially after maintenance.
Содержание Exacta-TL-GEOSPREAD GS3
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Страница 166: ...Notes 166 Notes ...