Track maintenance machine for tamping a track

A track maintenance machine for tamping sleepers installed on a ballast bed of a track, comprising;

• a machine frame movable on rail-based running gears wherein the machine frame has a longitudinal axis,
• a plurality of track lifting and lining units for correcting the track geometry;
• at least two 1-sleeper tamping units arranged one behind the other in the direction of the longitudinal axis of the machine that work independently of one another, with each tamping unit comprising at least four tamping unit segments that work independently of one another,
• a plurality of vertical drives;
• a plurality of transverse drives, wherein said plurality of vertical drives are configured to make said 1-sleeper tamping units adjustable in height via at least one of said plurality of vertical drives and horizontally shiftable in a transverse direction of the machine via said plurality of transverse drives, with each tamping unit segment comprising at least one tamping tool carrier, with opposing tamping tools being mounted on the tamping tool carrier and coupled via a vibration drive, wherein one of the two tamping units is designed as a turnout tamping unit, that by means of a shifting unit consisting of three transverse guiding units that work independently of one another the associated tamping unit segments are transversely shiftably mounted and can be positioned outwards with respect to the longitudinal axis of the machine in relation to the machine frame or in relation to a satellite frame movable along the longitudinal axis of the machine, and that the other tamping unit is designed as a plain-line tamping unit in such a way that the associated tamping unit segments are transversely shiftably mounted and can be positioned with only one shifting unit;
• wherein the tamping unit segments of the turnout tamping unit are transversely shiftable on first transverse guides of a first transverse guiding unit, that the first transverse guiding unit is transversely shiftable on second transverse guides of a second transverse guiding unit, and that the second transverse guiding unit is transversely shiftable on third transverse guides of a third transverse guiding unit in relation to the machine frame or the satellite frame.