Deutz FL 612/712
1 model in this series
Deutz F1L 712/1: air-cooled single-cylinder diesel tractor of the FL 612/712 range with 850 cm³ displacement, 13 hp (9.5 kW) at 2,300 rpm and 830 kg weight
Deutz built small air-cooled single-cylinder diesel tractors in Cologne for many years for smaller agricultural holdings. The F1L 712/1 is a further development of the FL 612/712 range and thus belongs to the same class of simple, robust field tractors for operations that did not need great pulling power.
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The single-cylinder diesel engine with 850 cm³ displacement produces 13 hp, or 9.5 kW, at 2,300 rpm. At 830 kg weight, 1,410 mm width and 1,265 mm height, the tractor remains compact and light; compared with a smaller displacement stage, displacement rises here while the weight stays similar.
A top speed of 19 km/h places the F1L 712/1 in driving licence category L (up to 40 km/h). As with the air-cooled Deutz single-cylinder engines, there is no cooling-water system at all; cooling air is drawn by a fan through the cylinder fins. Light field work, transport and stationary drive tasks via the belt pulley or power take-off are within its scope.
When buying such an early single-cylinder Deutz, check the condition of the cooling fan and the fins on the cylinder head, as cracks or bent fins worsen cooling. Also check the injection pump, crankshaft bearings and the general condition of the sheet metal for rust, since spare parts for this early range are rare today and mostly only available second-hand.
Sources: SpecCodex-Register: Kennwerte des Modells Deutz F1L 712/1, Deutz (manufacturer)
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Tractor in 3D section
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