Checking The Fasteners Of Stud Anchors; Checking Security Of The Fastener For Installation Systems; Checking Threaded Fasteners Tightened In The "Tightening" Operating Mode - Hilti SI­-AT­-A22 Manual De Instrucciones

Other system products approved for use with this product, the latest operating instructions and instructions
for testing can be found online at: www.hilti.group | USA: www.hilti.com

5.10.1 Checking the fasteners of stud anchors

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 stud anchors, the first stud anchor and
the last stud anchor 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 stud
anchor.
The check torque to be applied corresponds to the installation torque specified for the stud anchor
in question; obtain this information from the instructions for use for this anchor issued by the stud
anchor manufacturer.
▶ 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. 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.

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.

5.10.3 Checking threaded fasteners tightened in the "Tightening" operating mode

▶ At regular intervals, using a calibrated torque wrench and proceeding in accordance with your company
regulations or quality specifications, check that specified tightening torque has been achieved.
5.11 Removing the torque module
1. Remove the battery.
2. Press and hold down the release button of the torque module.
*2124681*
6
2124681 English 11