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Track Marshall's TM200
England's answer to Caterpillar's Challenger is Track Marshall's just-introduced TM200, featuring a track drive system developed in Australia.
Instead of the friction drive used on the Challenger, it has a positive tooth drive with lugs moulded on the underside of the tracks meshing with the cog of a steel rear sprocket wheel.
Tensioning of the tracks is achieved automatically. When the engine is started, pressure is created in two hydraulic rms, one for each track, to push the font pneumatic tiredidler roller forward.
The TM200 is powered by a 6-cyl. Cummins engine rated at 200 hp. A mechanical power shift transmission provides 16 forward and 2 reverse gears. Maximum forward speed is just over 13 mph.
Steering, like the Challenger, is through the use of a steering wheel. It involves a differential, hydraulic system designed to slow the inside track while maintaining equal continuous power to both track-driving wheels. (Excerpted from England's "Farm Contractor" magazine).

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1990 - Volume #14, Issue #6