Wow! Did You Guys eEver Hit That One Square On!

Allan in NE

Well-known Member
Don't think it's much over 10° off, do you? :>)

Allan

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Are you joking or serious when you say 10 degrees off? It is probably 80 degrees off if it is rectangular, 10 degrees if it is square and can be turned a quarter turn.
 
(quoted from post at 18:18:24 07/10/11) Are you joking or serious when you say 10 degrees off? It is probably 80 degrees off if it is rectangular, 10 degrees if it is square and can be turned a quarter turn.

You are correct. The yokes on a shaft must be aligned, not set at 90°.
 
My God Allan no PTO shield and the safty nazi are not yelling. You know it is your tractor and equip. and you should be able to do what you want. It looks like you took the shield off to see that it was welded off. My thought on running no shield is when a man is old enought to vote he should have comman sense to be careful and not get in trouble. I am 63 years old and I have done a lot of things that safty says is a no no but if you are careful you can do things. When ITIOTS do something stupit and don't survive it is a way to clense the GENE Pool. NOW LET THE FLAMING BEGIN I AM READY.
Bob
 
Hey, You guys larned me one too! Was havin some vibration issues on this digger I made..Never thought about the yokes having to be aligned..
Thanks,

Brad
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Hi Paul,

Are the two "Far outside end" yokes supposed to be lined up? It is rectanglar not square.

Thanks for your input on this please?

Allan
 
Allan
I'm not Paul but the answer is yes.

Square,rectangular or those weird foreign type telescoping shafts make no difference as to phasing(timing) of u-joints. As an "example" if one had the 2 shafts slide together with NO u-joint crosses installed,then lay the 2 yokes on a table with both cup areas of the yokes sitting flat on the table then they're in phase. That is the reason the telescoping shafts when slide apart will only slide back together either 1 way or 180 degrees the opposite.

I will guarantee you that if you cut off and re-weld the female part of the shafts so as they are in phase a lot or all of the vibration will go away on turns.
 
Well, stupid me, Jim.

No derned wonder when I turn a corner the whole baler and tractor shakes to high heaven. That's about 7 tons of iron vibrating. :>)

Do you think that ol' farmer me can cut that weld and phase it right, or do you think I ought to take it in to the shop in town to have it done?

I can lay a bead and line 'em up okay, just don't quite know where to slice it off? Right at the old weld?

Those darned things are $250, each end, so I'd really like to just re-do this one?

Thanks Jim,

Allan
 

Allan
If you cut the tubing square about 1/2 way with a chop saw and re-align the u-joints with the "tubing straight" and re-weld you should be good to go. I repaired and witnessed several shafts repaired.
Jim
 
Cutting the shaft in the middle increases the chance that it will not be straight when you are done. The closer to the end you can be the less any misalignment will affect total run out.

When checking drive lines of alignment treat and sliding shaft the same as a one piece shaft. The yokes on each end must be aligned the same.
 

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