Anton Schlüter Abt Schlepperbau München DSU

The register lists here 2 versions of 18 kW each, from a two-cylinder of 3,116 cm³ at 1,500 revolutions per minute. Unladen weight is 1,900 kg, length 3,100 mm, width 1,600 mm and height 1,650 mm.

Two-cylinder tractors of this power class, around 24 hp, covered the mid-range demand of farming operations in the 1950s that needed more pulling power than a small single-cylinder tractor but could not or did not yet want to run a large four-cylinder farm tractor.

On a used DS 25 or DSU, the condition and compression of the two-cylinder, the tightness of the cooling system and injection pump, the state of the gearbox and steering, and corrosion on the frame and mudguards matter; given the considerable age, a thorough technical inspection before returning it to service is essential.

When it was introduced in the 1950s, a tractor such as the DS 25 belonged to a generation that predated the international standardisation of power take-off speed and three-point linkage geometry, which only became settled in later decades as 540 and 1,000 revolutions per minute and the ISO 730 standard; implements of that period were often matched to the individual maker's own system.