Posted by Janicholson on May 14, 2008 at 06:22:20 from (199.17.6.122):
In Reply to: RPM to PTO speed posted by John in pennsylvania on May 14, 2008 at 04:19:49:
The issue is not critical. The full load speed of the engine is the point at which the engine is making its rated HP and it is usuallu about 80% or so of full throttle no load. This means that at no load with the throttle wide open (hurts nothing) the engine will turn about 20% faster than rated PTO speed. I know of no reason to worry about it. the slight overspeed will not harm any equipment. If it is a light load, and throttling down is needed to conserve fuel, that 80% might be close. It is not a good idea to lug an engine below about 75% of max idle. this produces less actual HP, and overloads bearings and drive train. JimN
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