Donald Lehman

Well-known Member
Had a few little things on the discbine that needed addressing, so it took us until this afterrnoon to finish mowing hay. Hay was very heavy. The 1650 did fine in second gear. Lotsa mud. Lotsa standing water. Had to go around a couple of places but it wasn't as bad as I expected. How well it will rake up remains to be seen.


Seem to have a vibration on the PTO shaft between the boom and the gear box. Do the yokes have to be timed? Any other ideas? Haven't got a manual for the thing yet, so e are kinda in the dark. It's a JD 930.
 
Timed means that both ends of the tube and slip combination must have yokes in the same plane. I----------I like that not ----------/ Jim
 
It's called "phasing".

It has to do with offsetting variances in speed. As the cross pieces move, there are slight changes in speed. Keeping them in phase helps keep the rotation consistent, more so than balance.

There is a limit to how many degrees a U joint can bend. Even though it can still go through the motions, bend it too far and it will start to chatter.
Driveline Phasing
 
My experience is that its difficult to get hay dry when you mow it into standing water. Your results may vary.
 
usually there is only 1 way that diskbine pto shafts will go together- which is also in time. at least the pto's on my CIH 8312 and the NH1431 are made that way.
gonna be a long spring.
 
Round bales have a lot of leeway as far as moisture levels go. I expect with the sunshine and warm weather we are finally getting the surface water will mostly be gone by this afternoon.
 

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