Tightening; General Tightening Torque Settings - APRILIA ATLANTIC 125 Workshop Manual

ATLANTIC 125 - 200

1.9. TIGHTENING

1.9.1.

GENERAL TIGHTENING TORQUE SETTINGS

The table shows the tightening toque settings for 8.8 class
screws made of steel/aluminum or other similar materials.
Screw or bolt Wrench
thread
M 4 7
M 5 8
M 6 10
M 8 12
M 10 14
M 12 17
M 14 19
M 16 22
For special couplings on this vehicle, refer to
If not otherwise specified, the tightening torque settings refer
to clean, dry and ambient temperature threads.
NOTE In order to avoid any possible deformation and/or
wrong coupling, please tighten screws and bolts as follows:
•
Tighten all fasteners by hand.
•
Apply half of the recommended tightening torque value
and tighten the opposite parts: (A) and (B); (C) and (D).
•
Repeat the above operation by tightening to the
specified torque value.
NOTE The pressure on the fastening parts will be thus
evenly distributed on the coupling surface.
Tightening torque
Nm kgm
3 0.3
6 0.6
10 1.0
25 2.5
50 5.0
80 8.0
135 13.5
210 21.0
2.3.2.
GENERAL INFORMATION
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