Kuhn Tedder GF 440

[Anonymous-0]

My trailing tedder GF 440T is giving me so trouble. One of the outer wheels is turning out
and dragging. I cannot see what's wrong, tried
taking it apart but that went nowhere. How do you
open up one of these things? Feels like a pin has
sheared off, wheel support is turning about an
1/8 of a turn when it should be fixed to the front. Anyone ever have a similar problem?

 

[wolfman]

Might be a different set-up but my 3-point Kuhn tedder had a wheel that would turn about 1/4 of the way around and stay there pulling the tedder to the side. Found the shaft was bent slightly. Dis-assembled, straightened shaft & it now turns and straightens up as supposed to.

 

[Shetland Sheepdog]

You probably have a roll pin or 2 sheared off up under the rotor! Those machines are assembled almost 100% with roll pins! easiest way to work on it is to flip it upside down, and then lift/pry the wheel assembly off the rotor shaft. Tools needed are a BFH, a pry bar & an assortment of punches! Be aware that a lot of the parts are secured by a roll pin within a roll pin, yup, 2 roll pins, one inside the other!
BTDT, HTH, Dave

 

[Brian in MA]

I agree with Sheepdog, I had the same problem with mine. While you're in there, look close at the pinion gear to be sure it didn't wear from the broken roll pins. If it is worn, replace it. Mine was worn and I didn't replace it, then the spinner jumped timing and ruined all the tines on both of those spinners. Then I took it all apart again, replaced the pinions and replaced all the tines the second time. Turn it upside down and tear it right apart, replace the roll pins and worn parts and you'll be good as new.

 

[Harold Hubbard]

While you have it upside down, replace the pins on the other three rotors. If you broke one, the others are probably cracked, and it is way easier to get them out while they are still in one piece. Putting one together after it has spread itself over forty feet of windrow is no fun either. Be sure the timing is correct before you drive the pins back in.

 

[Lew Best]

(quoted from post at 08:33:42 07/01/10) While you have it upside down, replace the pins on the other three rotors. If you broke one, the others are probably cracked, and it is way easier to get them out while they are still in one piece. Putting one together after it has spread itself over forty feet of windrow is no fun either. Be sure the timing is correct before you drive the pins back in.

I'll be putting mine back together today or tomorrow (gotta make 3 tine arms for it then it's ready). what's the best way to time it? looks like with the drive pins straight up & down on one side the tine arms line up with the bar; other side they offset by 45 degrees. Do I need to look for anything else or will this be "close enough"?

 

[Harold Hubbard]

With it all held together by gravity, turn it slowly by hand and be sure that the tine arms don't hit each other as they go around. If the gears are really worn, you should hold pressure on the arms in the direction that they will be loaded when operating.

 

[Lew Best]

Thanks; sounds like a good plan Gears don't appear to be badly worn; just the pins that drive the outer baskets (where it folds) one was completely worn off & let it quit spinning & that tore up 3 arms & the disc that holds them. Of course to replace the disc I had to pull the assembly off separating the gears so it has to be retimed. I replaced both drive pins; got a new disc but am going to try making the arms as Kuhn wanted 60 something each for them (takes 18 inch piece of flat for each one) & I got a 20 foot piece of flat for 40 bux at the steel yard.

Lew