John Deere Power Trains - Quad-Range and Perma-Clutch 720795
This paper discusses the Quad-Range transmission and Perma-Clutch power train components available on 1973 John Deere Row Crop tractors. It presents the design and explores some of the development aspects of the Perma-Clutch, powershifted planetary and gear train, transmission oiling system and control valves, and the unique gear shifting arrangement all which comprise the Quad-Range transmission.
