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John Deere no.8

S

SVcummins

Well-known Member
I bought this old sickle mower the day I bought my 3020 I?ve always wanted another sickle mower we had one on the farm growing up so I thought it would be fun project to make this one cut hay again had to make a hitch to fit a modern 3 point straighten the cutter bar and put a new pitman and I will replace all the guards with the new double guards and replace the knives the pto shaft was rusted tight so I had to press that apart then I?ll replace the ujoints
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looks good sv. if you leave those weights on there for a few days should straighten the bar right out. I see ringo doing his superviser dutys again!
 
I?m hoping middle of next week try taking the
weights off . Yip ringo is there to make sure we do it
up to his standards
 
I have a couple of those things lying around here. I liked them okay with the JD mounts on a 2 cylinder but seemed a little hard to deal with on a 3 pt. 38 models were a great improvement, and I just got rid of a 37. I use one to mow road banks. I mowed some hay with the 37 and a 450 but found the single wheel trailer types would get sideways in think hay.
 
Back in the day (60's), we had a # 8 mounted on a Farmall Super A and it would out-cut anything in the neighborhood. We still have both of them in the garage, but neither have been run in a while. A tobacco barn was blown over on the mower and the blade will require a little straightening like yours.
 
The correct hitch mounts the mower sollid so no side movement. Mounting on the 3 point arms you cannot get away from that side to side movement The correct mounts should be fairly easy to make and mounting would be as quick as hooking up 3 point lift arms. You do realize that the No. 8 mower has a 3.5" bar stroke while normal sections and bar stroke is 3.0" so timming of bar is way different as you cannot adjust to middle of sections but have to adjust for a quarter inch past what you would do for most mowers.
 
Using the 3 pt. arms makes for a longer pto shaft and controlling the up and down of the lift arms can be an issue, but you can make it mow ok.
 
I was looking at the sickle timing in the operators manual and noticed that you have time then so the knives go past instead of the center I?m glad I got that book it has already ansrwred a lot of questions I?m just hoping that those double guards will work like they should I see in the manual that double guards were availbile for this mower for certain crops
 
Part of the hitch clamp on this was missing that?s why I ended making this style of hitch I think I can Shim the sway blocks enough to take all the play out of the arms I did that once on a two row corn cultivator I had once
 

I have an old sickle mower, I don't recall the brand, that I got and put together years ago. I was mowing under tree branches with it and hooked something and it didn't release, and put a twist in the bar. I tried various ways to untwist it without success, and I plan to go back to it some day. From my experience of how far I bent it in trying to straighten it, I think that you will need to raise the tip of yours 3-4 more inches in order for those weights to do anything.
 
If the weights don't straighten the bar you can remove the guards in the bowed section and heat the top of the bar where it is bowed to a dull red and let it cool. If it doesn't straiten heat it a little hotter and cool. Can go to much easily.
 
May have to get close to white hot in a short area if it has a bend instead of a bow. Boss bought a used crane that had a big dent in the boom cylinder and couldn't get the piston and rod out of it. Was going to spend 2500 to buy a new one and asked if I could try to take dent out. Used a rosebud to heat the dent white hot and used ice water to cool. Had to heat 3 times each time a smaller area. Pulled the dent out of it and is still using it with no more rebuilds on cylinder. Got my regular hourly pay..LOL
 
I thought I?d start off small because I sure didn?t
want it to be bowed the other way so after a couple
days I?ll take weights off and see how she looks
 
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