Hilti Nuron SI-AT-22 Manual De Instrucciones página 33

parameter update are used. Regularly check the currency of the software and parameter versions installed
in the torque module in order to ensure that the latest parameters are always applied.
In this operating mode the torque indicator of the impact wrench shows AT and pressing the torque selector
button has no effect.
Comply with the operating instructions of the impact wrench.
Display icons for the parameters
Type of fastener (short name of the fastener)
@
Material / material grade / product details
;
Diameter (if present)
=
Tracefast activation/deactivation
%
6.4.2.1 Type of fastener
Parameters for various types of fastener are saved ex-works in the torque module.
The fastener shown must correspond to the fastener used.
Further information can be found in the SI-AT-specific operating instructions and in the general operating
instructions of the fastener you use.
Make sure that you use the correct parameters for the fasteners used.
6.4.3 "Tightening" operating mode
Display icons in the "Tightening" operating mode:
The number indicates the selected stage.
In this operating mode a total of 30 torque settings are available. The stage to be selected for a particular
type of fastener depends on various factors.
Examples of factors:
• Type and size of the fastener
• Specific torque of the fastener
• Material and condition of the workpiece to be fastened
Determine the correct stage setting step by step on the basis of these data.
6.4.3.1 Determining the required setting for the "Tightening" operating mode
CAUTION
Risk of damage! Damage to the fastener, the accessory tool and/or the workpiece.
▶ 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.
1. Use a low setting for initial tightening of the fastener.
▶ Start with as low a setting as possible, to avoid the possibility of overtightening and damaging the
fastener.
2. 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. Changed torquing conditions might necessitate a different stage.
Result 1 / 3
The specified tightening torque of the fastener 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.
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