Spinning machine comprising a plurality of adjacently arranged workstations and a displaceable maintenance unit with a pneumatic working element and method for supplying the pneumatic working element with vacuum

A method for supplying a pneumatic working element of a maintenance unit of a spinning machine with vacuum, wherein the spinning machine comprises a plurality of adjacently arranged workstations that each include a spinning device to which a process vacuum is applied, the maintenance unit displaceable along the workstations, the method comprising:

• supplying the pneumatic working element with the process vacuum via a suction head of the maintenance unit, wherein the suction head is advanced toward a closeable connection opening of the spinning device;
• and
• supplying the process vacuum to the spinning devices from a vacuum system that is internal to the spinning machine and that supplies all of the workstations with the process vacuum via a vacuum duct.

A method for supplying a pneumatic working element of a maintenance unit of a spinning machine with vacuum, wherein the spinning machine comprises a plurality of adjacently arranged workstations that each include a spinning device to which a process vacuum is applied, the maintenance unit displaceable along the workstations, the method comprising:

• supplying the pneumatic working element with the process vacuum via a suction head of the maintenance unit, wherein the suction head is advanced toward a closeable connection opening of the spinning;
• and
• comprising using the pneumatic element to pick up a sliver end and feed the sliver end to a feeding device or to a drafting system of the spinning device.