A method for computer-implemented supervising a tightening process of a bolt using a tightening system comprising:
- providing a man-operated tightening tool including an actuator for turning the bolt, configured to be switchable between a
- first operation mode, in which the actuator of the tightening tool is operable with at least one tightening sequence, and
- a second operation mode, in which the actuator of the tightening tool is operable with a loosening sequence,
- each of the tightening sequence and the loosening sequence comprising predetermined operation parameters for the actuator of the tightening tool, and
- the tightening tool further comprising a sensor unit for determining at least one parameter of the bolted connection during and/or after completion of a tightening sequence,
- wherein each of the at least one parameters, representing a quality measure of the bolted connection;
- wherein the tightening system further comprises a processing unit for processing the at least one parameter received from the sensor unit, wherein the processing unit is configured to determine a status of the bolted connection based on the at least one parameter,
- wherein the status comprises a first status indicating a correct bolted connection and a second status indicating a faulty bolted connection;
- and
- a user interface for outputting connection information about the bolted connection;
- the method comprising the steps of:
- a) receiving, by an interface, the at least one parameter of the bolted connection from the tightening tool during and/or after completion of a tightening sequence in the first operation mode;
- b) determining upon and/or after completion of the bolted connection the status of the bolted connection;
- c) switching the actuator of the tightening tool from the first operation mode to the second operation mode if the status corresponds to the second status;
- and
- d) switching the tightening tool from the second operation mode to a very first tightening sequence of the at least one tightening sequences of the first operation mode to re-tighten the bolt wherein step d) is initiated after the following steps have been performed:
- c1) receiving the at least one parameter of the bolted connection from the tightening tool during and/or after completion of the loosening sequence in the second operation mode;
- and
- c2) determining whether the bolted connection is completely loosened.