OPERATING MANUAL 8. ANNEX
ThyssenKrupp Aufzugswerke GmbH 55 Issue 06.2004
8.1 Tightening torque - mechanical strength
Attention: observe required screw strength and tightening torque when
performing any work on the machine or exchanging parts.
Non-microencapsulated screws must be secured against unintentional
working loose using detent edged washers.
The values specified apply to the applications indicated below:
Hexagon socket screws ISO 4762 (DIN 912)
Hexagon bolts ISO 4014 / 4017 (DIN 931 / 933)
To observe the required torque, tighten the screws using a torque
spanner!
Dimension Tightening torque M
A
[Nm]
Strength 8.8 10.9 12.9
M4 2,8 4,1 4,8
M5 5,5 8,1 9,5
M6 9,6 14 16
M8 23 34 40
M10 46 67 79
M12 79 115 135
M16 195 290 340
M20 395 560 660
M24 680 970 1150
Attaching encoder on shaft Clamping bolt 2,5 Nm
Attaching encoder on brake M4 x 4 1,0 Nm
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