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.
Why A Medium Size Four Wheel Drive Agricultural Tractor?
Sae Technical Papers
Farm, Construction, Industrial Machinery and Powerplant Meetings ; 1970
1970-02-01
Aufsatz (Konferenz)
Englisch
FOUR-WHEEL-DRIVE VS CATERPILLAR TRACTOR
SAE Technical Papers | 1920
|Farm tractor with four-wheel drive
Engineering Index Backfile | 1949