John Deere 6020-Baureihe
1 model in this series
John Deere 6020 line, Model 6620: a six-cylinder engine of 6,788 cc, 92 kW, 479 Nm of torque and a 7,421 kg lift capacity, built from 2002 to 2007
The 6620 belongs to John Deere's 6020 line, a European generation of larger general-purpose and field tractors with a six-cylinder engine, built from 2002 to 2007. This line was aimed at larger mixed and arable farms that needed more power than John Deere's smaller lines could offer.
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John Deere's own six-cylinder engine of 6,788 cc produces 92 kW (125 hp) at 2,300 rpm and delivers 479 Nm of torque. At a weight of 5,915 kg, with a wheelbase of 2,650 mm and a width of 2,445 mm, the hydraulics lift up to 7,421 kg, noticeably more than the manufacturer's smaller lines.
The combination of high engine output, strong torque and high lift capacity suits the 6620 to heavy tillage, large implements and front-loader work on larger arable and mixed farms. With a top speed of 40 km/h, the tractor sits at the boundary of the licence category for slow tractors, the same limit that applies to the smaller lines in the same maker's range.
Buying a used 6620 means the high-capacity hydraulics are a key checkpoint, as are the clutch and gearbox on a tractor that often worked with heavy implements over a long service life. The six-cylinder engine should be checked for oil consumption, smoke on start-up and smooth running at idle. Parts for this widely used line are well supplied through the European dealer network, including wearing items for the hydraulics.
Sources: SpecCodex-Register: Kennwerte des Modells 6620
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