The best weight for a tractor of given horsepower must be a compromise based upon a mean of the many conditions to be encountered by a given machine or by different machines of the same model. While ...

Carry-all and fixed-blade ejector scrapers, combined with John Deere scraper-ready, four-wheel-drive tractors, move up to 42 cu. yds. of material per cycle. 9020 Series tractors travel up to 25 mph ...