Posted 3/15/2019 09:40 (#7381902 - in reply to #7381781) Subject: RE: Handheld tachometer
NE Iowa
As John said.
We put the tape on the shaft, shoot the speed and get it set where we want it and spread.
You can try revving the tractor and slowing it down but it doesn’t effect the Hyd flow much. So set it at the engine rpm closest to where your going to gun , and not worry about it.
You can always check it when reloading or stopped to drain the radiator!