Hilti SI­-AT-­A22 Mode D'emploi Original page 22

▶ Use a calibrated torque wrench to apply the check torque to the nut
of the stud anchor and apply the correct check torque.In this process,
observe the angle through which the fastening element can be turned in
the tightening direction.
Result 1 / 2
The fastener of the stud anchor was not turned farther than through the
specified maximum angle of rotation (< 180°).
The fastener was tightened correctly.
Result 2 / 2
The fastener of the stud anchor was turned farther than through the
specified maximum angle of rotation (< 180°).
The fastener was not tightened correctly.
tightened since the previous check are to be regarded as faulty and
must be checked. Have the impact wrench checked by Hilti Service.
5.10.2 Checking security of the fastener for installation systems
To ensure that the specified pretension as per the approval / operating
instructions has been correctly applied when the "Adaptive" operating
mode is used to tighten pushbuttons, the first pushbutton and the
last pushbutton always have to be checked with a calibrated torque
wrench. This check of the applied installation torque has to be carried
out immediately after tightening (installation) of the pushbutton.
The check torque to be applied corresponds to the installation torque
specified for the pushbutton in question; obtain this information from
the operating instructions for this pushbutton.
Make sure that you use the correct installation parameters for the
fasteners used. Further information can be found in the operating
instructions of the torque module and in the operating instructions of
the relevant product.
▶ Check the fastener with a calibrated torque wrench. In this process,
observe the angle through which the fastener can be turned in the
tightening direction.
Result 1 / 2
The fastener was not turned farther than through the specified maximum
angle of rotation (< 180°).
The fastener has been tightened correctly.
Result 2 / 2
he fastener was turned farther than through the specified maximum angle
of rotation (> 180°).
The threaded fastener has not been installed correctly. The threaded
fasteners tightened since the previous check are to be regarded as faulty
and must be checked. Have the impact wrench checked by Hilti Service.
16 English
The threaded fasteners
2124681
*2124681*