Well, it depends on the application. On a general usage tractor you are OK. If you are going to use the tractor with heavy 3pt. tillage equipment, and dependent on the hydraulic draft sensing system to maintain traction and provide depth control for the tillage implement, you need to run about 19-21 psi. to keep the tires from squatting as the draft control system does it's job. You also need to properly weight the front of the tractor to keep it solidly on the ground. Back in the day, 4-6 bottom plows were very popular. We ran 21 psi. in furrow wheel, and 19 psi in land wheel for max performance with bias tires. I'm sure the rules have changes with radial tires, and there are not many 3pt primary tillage tools being used anymore. Loren
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Today's Featured Article - The Collection of a Lifetime - by Sherry Schaefer. The larest gathering of orphan tractors ever assembled by one collector will be auctioned off on May 15 in Rock Island, IL. Ed Spiess was a well known tractor buff who spent most of his time dreaming of rare and unknown tractors. His background as an agricultural engineer sparked his interest in the unique attributes of the models built from 1939-1959.
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