| The speed of the pump is most likely limited more for the protection of cavitation of the pump components at high revs than the higher flow which might also over tax some thing but could be overcome with relief valves. Trying to pull to much fluid into pumps will create a very low input pressure and cavitation will happen. It will result in serious loss of metal surface on parts in the cavitation area in a very short ( hours) time.
The manual warning is to keep your foot off the throtle as the stationary operation would use the hand throtle to give a constant and limited RPM of the pump drive shaft.
Dave |