Determining The Required Setting For The "Tightening" Operating Mode; "Unregulated" Operating Mode; Setting The Operating Mode; Setting The Operating Mode With The Control Panel Buttons - Hilti SI­-AT­-A22 Manual De Instrucciones

The number to the right of the threaded-fastener symbol shows the selected setting.

5.6.2.1 Determining the required setting for the "Tightening" operating mode

1.
ATTENTION: Before starting to tighten a threaded fastener, always check that the mating faces of
the components to be joined are seated flat against each other and that the nut has been screwed down
until it is seated against the component.
2. Use a low setting for initial tightening of the fastener.
▶ Start the step-by-step process with as low a setting as possible, to avoid the possibility of
overtightening and damaging the fastener.
3. Use a calibrated torque wrench to check the torque applied to the fastener.
For repeatable torquing of two or more identical fasteners, make sure that all torquing conditions
remain unchanged. A change in torquing conditions can necessitate a change to a different stage.
Result 1 / 3
The specified tightening torque of the fastener to be tightened was not achieved.
▶ Back off the fastener and set the torque module to a higher stage.
▶ Tighten the fastener with the new stage setting and repeat this test step.
Result 2 / 3
The specified tightening torque of the fastener to be tightened was exceeded.
▶ Back off the fastener and set the torque module to a lower stage.
▶ Tighten the fastener with the new stage setting and repeat this test step.
Result 3 / 3
The fastener was tightened to the specified tightening torque.
This stage setting is correct for this fastener.
5.6.3

"Unregulated" operating mode

In this operating mode the adaptive torque module is deactivated. The impact wrench works as though the
adaptive torque module were not fitted to the tool. The adaptive torque module therefore does not have to
be actually removed when it is not needed for short periods of use.
In the "Unregulated" operating mode the display shows the following:
In "Unregulated" mode the impact wrench's "AT"
torque indicator does not light up, but the button
on the impact wrench for selecting the various
stages is operational.
5.7

Setting the operating mode

There are 2 ways of setting the operating mode to suit the type of fastener:
• Scan the barcode or QR code on the packaging of the Hilti product you are going to tighten.
• Manual adjustment using the buttons on the torque module
Scanning the barcode or QR code
If a barcode or a QR code is available for the Hilti product to be tightened, the operating mode can be set
correctly for the product quickly and easily by scanning the code.
▶ Set the operating mode by scanning the barcode or QR code. → page 9
Manual adjustment
If no barcode or QR code is available for the product to be tightened, the operating mode can be set by
using the buttons on the torque module.
The "Unregulated" operating mode can be set only manually.
▶ Select the operating mode with the control panel buttons. → page 8
5.7.1

Setting the operating mode with the control panel buttons

1. Unlock the torque module. → page 5
2. Use the arrow buttons to move the selection frame, as necessary, to the option you want to change.
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