Checking Threaded Fastener; Checking The Security Of Stud Anchors - Hilti SI­-AT-­A22 Manual De Instrucciones Original

5. Press the control switch and hold it down until the torque module returns
one of the following feedback signals:
Result 1 / 2
• The symbol indicating "Tightening completed successfully" is dis-
played.
• The LEDs show green.
• The confirmation tone sounds.
The threaded fastener has been tightened correctly. Proceed with the
next threaded fastener of the same type.
Result 2 / 2
• The symbols indicating "Tighten-
ing not completed correctly" are
displayed.
• The LEDs flash red.
• The warning tone sounds.
▶ Tighten the threaded fastener with
a calibrated torque wrench.

5.10 Checking threaded fastener

5.10.1 Checking the security of stud anchors

Note
To ensure that the specified installation torque as per the approval /
operating instructions has been correctly applied when the "Adaptive"
operating mode is used to tighten stud anchors, the first anchor and the
last anchor 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.
▶ Use a calibrated torque wrench to apply additional torque to the fastener.
In this process, observe the angle through which the fastening element
can be turned in the tightening direction.
Angle-of-rotation guide values for checking tightening torque
Anchor diameter (Ø)
≤ 3/8"
≥ 1/2"
Printed: 15.09.2017 | Doc-Nr: PUB / 5331558 / 000 / 01
Maximum angle of rotation (α)
90°
180°
English 15