Kverneland Exacta-TL-GEOSPREAD GS3, Operator'S Manual

Page: 138 / 171

Maintenance
138
Stainless steel
tightening torques (Nm)
Guidelines for torques (in Nm) for self-locking nuts, hexagon bolts and
nuts.
.
* The friction coefficient of 0.10 applies to oiled sheets, cast iron, hard-
ened surfaces, greased threads, etc. The higher value of 0.30 applies
to dry sheets.
Exceptions to this table are listed in the parts and/or instruction man-
ual.
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 below:
•
after the first operating hour,
•
regularly (at least weekly).
Torques
Quality 70 (A2) 80 (A4)
Friction * 0.10 0.20 0.30 0.10 0.20 0.30
Thread
M5 3.6 5.7 7 4.8 7.6 9.4
M6 6.3 9.9 12.2 8.4 13.2 16.3
M8 15.2 24.1 29.9 20.3 32.1 39.9
M10 29.9 47.7 59.3 39 63 79
M12 51 82 102 68 109 136
M14 82 131 163 109 175 217
M16 126 204 255 168 272 340
M18 176 282 352 235 376 469
M20 247 401 501 330 534 669
M22 337 551 692 450 735 923
M24 426 690 863 568 920 1151
\
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.