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Dave H (MI) · Jun 26, 2013

We have all the hay done that we are going to get done based on the weather so I have about a week here where I might have some free time now and again and would like to finish up the 300U band adjustment and linkage repair. When I last posted I was working on the linkage as there was a lot of play and it would not operate the bands. I removed the control arm and the threaded end of the lever it slides onto was stripped smooth along with the nut AND it was bent. I straightened and cut new threads and it is fine. I am now looking at the Woodruff key and the slot on the two parts for the key. Parts book says #7 key. From what I am looking at I have much wider slot on the linkage part than I have on the control arm. Don't think there is a key that will be fatter on the round end than on the flat end so I am fishing for alternatives. I know Jim mentioned a round (compression?) type pin solved his problem. Maybe if he or anyone else has suggestions I could consider before I blunder off on my own? I imagine I could line up the two parts and drill thru and put in a pin. Anything easier you all can think of? Thanks.

Janicholson · Jun 26, 2013

The on on site way (good but tedious) is to use a dremmel tool and widen the slot for the next thicker woodruf Key. Cut down the new thick key so it fits the same depth.
The strongest is to have a keyway slotted into the shaft at the location of the existing wallowed out hole. Use a key (maybe 3/16") that is just wider than the wallowed out hole. Then broach the handle to match. THis is strong because it now uses the full length key.
A third is to JB weld a new woodruf key into the wallowed out slot, then put the handle on and drill through both for a 3/16 roll pin. Put a smaller roll pin inside that one to make a stronger pin.
Good luck, jim

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Dave H (MI)

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Janicholson

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