METHOD FOR MONITORING REQUIRED AIR CURRENTS FOR HANDLING A YARN AND/OR SLIVER AND A SPINNING MACHINE UNIT

A method for monitoring air flows required for handling a thread and/or fiber band in a spinning machine, and to a spinning machine unit. At least one air flow-generating source is connected to an air flow duct. An air volume flow measuring unit is connected to an evaluation device for data transmission. The air volume flow is measured by the air volume flow measuring unit and the measurement result is transmitted to the evaluation device. The number of productive and/or non-productive spinning positions is detected. An air volume flow target value is determined by the evaluation device. The air volume flow target value is compared with actual value of the measured air volume flow by the evaluation device, the evaluation device making an evaluation on the basis of the comparison as to whether there is an unacceptable deviation between the actual value and the air volume flow target value.