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RCD

Posted 5/15/2012 09:25 (#2383567)
Subject: Kuhn Rotary Rake

West Central Iowa

I purchased a used Kuhn center delivery rotary rake and am trying to figure out where the "slop" is coming from between the tine arms and the tine arm housing. On some of the arms, I can grab the tine arm and push it in (or pull it out) almost an inch. Then the one beside it has much less play. I have taken both a sloppy one and a tight one out, took them apart, and for the life of me cannot find out what is wrong. A few of the parts appear to be a bit different as if there was a serial number break but the parts printout I have is not detailed enough to let me know if someone put newer parts in my machine. There are no dealers remotely close to me that I am aware of that sell much Kuhn stuff, especially rotary rakes. Have called the company with limited success. Could anyone shed some light on the topic. If need be I can provide a cell phone if you need more description as it is tough to explain well in a post.

TIA

Oliver

Posted 5/15/2012 10:11 (#2383605 - in reply to #2383567)
Subject: RE: Kuhn Rotary Rake

Shaftsbury, Vermont (SW VT)

I haven't had Kuhn rake apart, but if they are made like the Krone ones we sell/service here, there is a spacer on the tine arm, and then a thrust washer, that are put on the arm before you put it out through the housing. Possibly someone has replaced those tine arms, and missed the spacer that was supposed to be transferred to the new part. I think the rake gearboxes are similar, if not made by the same company.
If you have a parts breakdown, you can see if those spacers are used on your rake. I hope the machine comes apart a little easier than a Krone that has spent time outside !!!
Good luck, and let us know what you find.
Oliver Durand
OOPS !
Edit: I recently repaired a Krone rake, and they had a habit of breaking the tine arms through one of the bolt holes. They moved the holes out a bit, and made the arms clamp on the shank to keep the flexing down. Compare the location of the bolt holes in your arms, if that's how yours are fastened. We had to also install different arm tubes on this one to compensate. I'll try and log onto the Krone parts website later to get a picture if I can.

Edited by Oliver 5/15/2012 10:30

upstate ny

Posted 5/15/2012 19:14 (#2383968 - in reply to #2383567)
Subject: Re: Kuhn Rotary Rake

How far into it did you go? On the inside cam arm,that follows the cam with the little roller on it there should be a washer to take up some slop between the roll pin and houseing. On a 7822 they are metal washers and our single rotor they are plasic. On the out side of the shaft where the tine arm would slip on there is a another special washer and clip that is groved into the solid shaft. You should check them all in the same spot as you turn it. On the 7822 they move in and out about 1/4 inch or so. I double check for washers now because i have forget to put them back on, Usaully covered in grease and dont even notice them. Hope thats some what clear..

upstate ny

Posted 5/15/2012 19:25 (#2383976 - in reply to #2383567)
Subject: Re: Kuhn Rotary Rake

They also have an updated short shaft ( the solid shaft) where the holes on the inside end of the saft take a bigger roll pin and new cam follower. Not sure if that model is one of them but if sombody had hay down and in a hurry to fix a broken shaft you would never notice the hole size differnce. Thinking that might be your issue, the bigger roll pin was so the inside pin would not break before the outside one. You should get a bag or two of roll pins too, you will need them.

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