•
Always
tighten the joint by hand,
and never use pneumatic tools.
•
Use the
correct tightening technique
, that is
do not
jerk. Tighten the screw
in a slow, flowing motion.
•
Maximum allowed total deviation from the specified value is
10%
!
Oil-lubricated screws with slotted or cross-recess head screws
The following table specifies the recommended standard tightening torque for
oil-lubricated screws
with
slotted or cross-recess head screws.
Note
A special torque specified in the repair, maintenance or installation procedure
overrides the standard torque.
Oil-lubricated screws with allen head screws
The following table specifies the recommended standard tightening torque for
oil-lubricated screws
with
allen head screws.
Note
A special torque specified in the repair, maintenance or installation procedure
overrides the standard torque.
Tightening torque (Nm)
Class 12.9, oil-lubric-
ated
Tightening torque (Nm)
Class 10.9, oil-lubric-
ated
Tightening torque (Nm)
Class 8.8, oil-lubricated
Dimension
-
-
6
M5
-
-
10
M6
40
34
24
M8
80
67
47
M10
140
115
82
M12
340
290
200
M16
670
560
400
M20
1150
960
680
M24
Lubricated screws (Molycote, Gleitmo or equivalent) with allen head screws
The following table specifies the recommended standard tightening torque for
screws lubricated with Molycote 1000, Gleitmo 603 or equivalent
with
allen head
screws.
Note
A special torque specified in the repair, maintenance or installation procedure
overrides the standard torque.
Tightening torque (Nm)
Class 12.9, lubricated
Tightening torque (Nm)
Class 10.9, lubricated
i
Dimension
35
28
M8
Continues on next page
176
Product manual - Feather Duster V2
3HAX010000210 Revision: A
© Copyright 2018 ABB. All rights reserved.
7 Reference information
7.3 Screw joints
Continued
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