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Why A Medium Size Four Wheel Drive Agricultural Tractor?
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English
Abstract
Medium size four-wheel drive tractors are becoming popular as farmers strive to increase productivity per man day. These tractors represent the next step up in horsepower with only a moderately higher cost per horsepower than available large two-wheel drive tractors. This paper describes how a four-wheel drive tractor using two-wheel drive tractor components minimizes cost. The new John Deere 7020 tractor is used as an example to show how this was accomplished.
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Authors
Citation
Davis, L. and Henderson, D., "Why A Medium Size Four Wheel Drive Agricultural Tractor?," SAE Technical Paper 700683, 1970, https://doi.org/10.4271/700683.Also In
References
- Van Syoc W. “Field Performance of Large Two-Wheel Drive Tractors” Mississippi Valley Section - Spring Meeting Moline, Illinois May 8 1969
- Christen D. L. “The Design and Application of Four-Wheel Drive Ag. Tractors” Mississippi Valley Section - Spring Meeting Moline, Illinois May 8 1969
- U.S.D.A. “Changes in Farm Production and Efficiency‘ 1969’” Washington D.C.
- Zimmerman M. “Farm Wheel Tractors, Scanning Them All” Implement & Tractor Dec. 21 1967 22 23
- Zimmerman M. “The Whole U.S. Farm Wheel Tractor Market for 1969” Implement & Tractor Dec. 21 1968 24 25
- “Farm Tractors 1970” Implement & Tractor February 7 1970 32 33
- “Tractor Retail Sales by PTO Horsepower, 1969” Farm & Industrial Equipment Institute Annual 1969
- Stoup Curry W. “Farm Machinery in the ‘70's’” Automotive Industries June 15 1970 50 51 52
- Fletcher E. H. Smith O. A. “Hydraulic Power for a New Generation” National Conference on Industrial Hydraulics Chicago October 1961