Three new models launched in Challenger’s MT700D Series are said to further cut operating costs for progressive farmers and contactors by combining the most advanced, economical engines with the industry-leading Mobil-Trac system’s benefits of outstanding traction and low compaction.
The three new tractors share an 8.4-litre engine that produces a maximum 335hp on the MT745D, 358hp on the MT755D and 382hp on the MT765D.
The MT700D Series is powered by the latest Agco Power engine that has been designed and built specifically for agricultural applications and is equipped with the company’s Generation 2, e3 selective catalytic reduction (SCR). This highly efficient system treats exhaust gases after combustion and can cut fuel consumption by 10 per cent compared to previous engines, while also complying with the Stage IIIB emission standards.
Challenger says the big benefit of SCR technology is that it allows the engine characteristics to be set for optimum power, torque and economy, without making compromises to meet the exhaust emission regulations.
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| The MT700D Series tractor’s drivetrain starts with an 8.4-litre Agco Power engine. |
Agco tests suggest that the new models consume up to 10 per cent less fuel than their predecessors, while running costs are cut further because the engines have longer, 400-hour service intervals.
Starting with a clean-sheet design, Agco Power developed the engines with high power densities to meet the toughest challenges. Torque delivery is matched precisely to the fluctuating loads of the most demanding equipment. On top of its unbeatable fuel economy, the engine is also light in weight and quiet in operation.
Challenger is still the first and only tractor designed specifically for use on rubber tracks and the new MT700D Series continue to offer the unique Mobil-Trac system’s benefits of unrivalled traction with low compaction.
All new MT700D Series tractors are fitted with highly durable poly mid-wheels as standard. Well-proven in extreme conditions, these feature a hard-wearing polyurethane working surface that extend working life in harsh environments by offering high resistance to chipping and damage.
The mid-wheels now also have new bearings that increase durability and are fitted with larger bearing cups that hold more lubrication oil. New, clear sight gauges offer a simple and easy way to check lubricant levels. Robust debris deflectors help prolong track life by guiding soil and stones away from the undercarriage and ensure the belts are kept clean in work.
All MT700D Series models are also fitted with new Challenger tracks. Depending on width required, these are available in General Ag specifications – which feature an extra inside rubber layer – as well as Extreme Agricultural and Extreme Application versions that have two extra inside layers. General Agricultural and Extreme Application tracks also now use a larger-diameter main cable.
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| The top-of-the-range MT765D offers a maximum power output of 382hp. |
The exclusive Mobil-Trac technology is the product of 25 years’ experience of leading track design, which provides huge benefits by spreading the load over a large footprint. This provides ultimate traction that increases productivity by pulling wider implements faster, allowing operators to make best use of fuel and establish crops in optimum conditions.
At the same time the Mobil-Trac system spreads the load over a large contact area, which reduces ground pressure and cuts the risk of compaction. This protects the soil structure and helps improve crop root development and ultimately increases yield.
Challenger is also introducing other refinements on the MT700D Series to further boost performance and durability. Operators will appreciate a slight change to the transmission that involved recalibrating the hydraulic valves that change the gears and this has improved comfort and control while shifting.
Externally the biggest change is the new oval-shaped exhaust stack, which contains the catalytic converters. This novel design not only benefits the SCR system, but also helps improve forward visibility, presenting a smooth narrow exhaust pipe alongside a cab pillar.
Up in the cab there’s a new power strip that provides more connections for implement terminals, telephone chargers and other devices that need electric power. There’s also an adjustable, intermittent wiper position plus the option of a factory-installed radio. A new ignition key also locks and unlocks the door on the Challenger MT700D Series, as well as other Agco products.
