Posted by Tx Jim on September 12, 2013 at 11:19:21 from (69.35.163.58):
In Reply to: Rated RPM vs Max RPM posted by farmer boy on September 12, 2013 at 10:45:45:
farmer BOY
The area you have outlined in the green circle is to achieve 1000 rpm's on a 4020 but to achieve 540 rpm's one needs to operate engine at 2200 rpm's. Back in the hey day of the 4020 I would guess 75%+ pto equipment was operated at 540 rpm's. The way hp is measured has changed some since the inception of the Nebraska tests.
As far as Tractordata's concerned they have been known to make a mistake or 2 BUT they do provide a "wealth of information".
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