Method for operating a work station of a textile machine

1. A method for operating a work station of a textile machine that produces or rewinds yarn in a normal operation, wherein the normal operation is interrupted, comprising:

performing at least one service step for restoring the normal operation, wherein a service result is specified for the service step;

carrying out a standard service operation with a service device to achieve the service result;

upon reaching a predetermined number of failed attempts of the standard service operation without achieving the service result, performing an extended service operation;

wherein the extended service operation comprises a supporting service operation that includes one or both of a cleaning, operation or an exchange operation selected, to increase probability of success of achieving the service result; and

wherein the extended service, operation further comprises a modified service operation performed subsequent to the supporting service operation with parameters that are changed compared to the standard service operation, or with a different service device than is used for the standard service operation.

2. The method according to claim 1 , further comprising generating an indication to service personnel that the extended service operation is being performed.

3. The method according to claim 2 , wherein the indication is one or both of a visual or an acoustic signal.

4. The method according to claim 3 , wherein the visual or acoustic signals are emitted at the work station, at a central point of the textile machine, or at a display device that is remote from the textile machine.

5. The method according to claim 1 , wherein one or more of the standard service operation, the modified service operation, or the supporting service operation are carried out by a service device of the work station, a robot, a traveling cleaner, or an additional service unit.

6. The method according to claim 1 , further comprising recording one or both of a number of the modified service operations or the supporting service operations that are carried out at individual work stations, or recording a number of unsuccessfully carried out service operations performed by particular service devices.

7. The method according to claim 1 , wherein the exchange operation is exchange of one or more of: a template material; a receiver coil; a sleeve; or parts of the work station.

8. The method according to claim 1 , wherein the normal operation is interrupted due to a fault, the method further comprising performing an additional operation at a start of the service step or as part of the extended service operation to determine one or both of a cause of the fault or time of the fault, wherein one or more of the following is performed depending on a result of the additional operation: selection of subsequent operations at the work station, aborting the service step, or aborting the extended service operation.

9. The method according to claim 8 , wherein the result of the additional operation is made clear to service personnel by a visual or acoustic indication.

10. The method according to claim 1 , wherein a maintenance priority is assigned to each work station, the maintenance priority set lower when an extended service operation is carried out.

11. The method according to claim 1 , wherein the standard service operation is a setting operation, a yarn search operation, a doffing operation, or a splicing operation.

12. A textile machine, comprising a control unit configured to operate the textile machine when normal operation for operating a work station of the textile machine that produces or rewinds yarn is interrupted, as follows:

performing at least one service, step for restoring the normal operation, wherein a service result is specified for the service step;

carrying out a standard service operation with a service device to achieve the service result;

upon reaching a redetermined number of failed attempts of the standard service operation without achieving the service result, performing an extended service operation,

wherein, the extended service operation comprises a supporting service operation that includes one or both of a cleaning operation or an exchange operation selected to increase probability of success of achieving the service result; and

wherein the extended service operation further comprises a modified service operation performed subsequent to the supporting service operation with parameters that are changed compared to the standard service operation, or with a different service device than is used for the standard service operation.