Re: PTO HP

Posted by JWC on September 18, 2004 at 23:14:08 from (216.78.71.7):

In Reply to: PTO HP posted by Pete on September 18, 2004 at 08:57:32:

The manufacturer selects the gearing of the pto so that you will be able to maintain 540 or 1000 rpm at or near the maximum available power. HP is measured with a dynamometer, which measures force(torque) and shaft speed(rpm). Within whatever reserve the govenor on the engine affords you the maximum engine rpm will only occur at something less than the maximum load. The manufacturers do their best to maximize the amount work that can be obtained from each machine. The govenors are not set to limit the engine speed to the point where maximum power is produced because all tasks do not require maximum power or torque.

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