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By Steve Mitchell in Industry on 24th Nov 2008 13:00
Featuring higher horsepower and payloads, better ergonomics and improved operator comfort, John Deere's new 5R and 5RN Series utility tractors are rated at 80, 90 and 100hp, and feature the company's new tractor model designations (see note below).
Replacing the previous 5020 Series models, the new range includes 80hp 5080R, the 90hp 5090R and the 100hp 5100R. In addition to these standard models, narrow (RN) versions have a maximum overall width of 1.86m and are particularly designed for horticultural use, working in row widths greater than 2.50m.
The new 5R Series tractors' full-frame chassis design allows a 20 per cent higher payload and therefore the use of larger, heavier implements compared with the 5020 Series, up to a maximum weight of 6600kg. The tractors can also be optionally equipped with a front hitch, front pto and various front loader packages.
All three tractors are powered by a proven 4.5-litre PowerTechE turbocharged engine, which is certified according to Tier IIIa emission requirements. This fuel efficient engine delivers seven per cent extra horsepower and twice the power boost of previous models, and features a 20 per cent wider constant power range at 550rpm. High start-up torque and a 30 per cent torque reserve ensure that these tractors can cope with the toughest tasks.
Two transmission options are available, both with an electric power reverser and a new declutch button for more comfortable shifting, for example during road transport, without using the foot clutch. The basic 16/16 PowrQuad Plus and AutoQuad Plus transmissions feature four ranges with four power shifting gears operating between 3.3 and 40kph, and are available with a 16/16 underdrive option for speeds down to 1.5kph.
The new, higher specification AutoQuad Plus transmission allows the user to work more comfortably as well as save fuel, because the transmission shift points can be pre-selected according to the application to ensure the tractor operates in the most fuel efficient gear. Further premium features such as single lever shifting, soft shift and speed matching as well as a parking lock are all included in the standard tractor specification.
The newly designed TechCenter cab is tiltable and features 310 degree vision. Air conditioning and a new, comfortable deluxe seat with horizontal and vertical air suspension provide premium operator comfort at a significantly lower noise level of 74dB(A) under full load. Improved ergonomics include the telescopic and tiltable steering column and the new gearshift lever, which has a more comfortable shape and better functionality.
The tractors can be equipped with three different John Deere front loader models for a wide range of materials handling applications, making the most of the tractors' high capacity hydraulics, excellent manoeuvrability and visibility and integrated mechanical joystick. To create an even more powerful front loader package, functions such as front loader suspension, the time-saving MemoSystem and fast dismounting are optionally available.
Website: www.johndeere.co.uk
Read more articles in Industry, by Steve Mitchell or from November 2008.
