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JD #51 plow moldboard part number

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09-03-2007 06:05:32

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Through your advice on the archives, I learned I have a JD #51 plow (one bottom, 14", 614 stamped on the curved beam).

I also contacted ERB Plow Works in Ohio, as found here, as I need a moldboard for this plow. ERB telephoned, and left a message asking for a part number for a moldboard.

My worn, busted moldboard is plain on back, with no number. I need one that curves way over to do a slam dunk on this old sod that tends to flop back down after I make my pass.

Anybody have a part number for a 5-bolt moldboard for a JD #51? The point is a separate part on my plow, but there is no separate shin.

It would be great if there are two extra holes at the top/back of the moldboad to attach an extra pusher for that sod.


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09-04-2007 05:45:22

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 Re: JD #51 plow moldboard part number in reply to Mark NWPA, 09-03-2007 06:05:32  
Your plow would have been made sometime between 1935 and mid 1940's. A lot of plow makers had a Scotch bottom avaible that sounds like what you have, however I don't think Deere was one of the companys. A previous owner likely bought a complete bottom assebmly fron a different maker of plows. In Canada I believe McCormick called them an Ace bottom. Unles you are restoring for show or antique plowing contest forget about getting a moldboard and just go to a machinery parts yard and just buy a complete botton from the earlier semi mounted plow (DO NOT get a metric bottom as they will not fit) and change over the complete bottom assembly. If you can't do that then we at least need the numbers stamped on the share, a picture would also work to help identify what you have. Those scotch bottoms were only for a 10" frame plow tho so would not have ever worked right on that 14" plow. You will buy a good used throw away share bottom along with a supply of new shares for less than one share of the type you would have now. Now I think you are not correctly describing what you have and you just have one of the standard type bottoms Deere made and that other piece you are talking about is just called a moldboard extension but you have to get them to match the rest of the bottom as different make-model moldboards are drilled differently for the extensions.

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09-03-2007 09:44:19

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 Re: JD #51 plow moldboard part number in reply to Mark NWPA, 09-03-2007 06:05:32  
Hi , First of all I want to make it clear I'm NOT an old hand with plows , I'm just learning so my suggestion's / comments should be taken with a grain of salt . I was looking at a chart of old moldboard shapes in a 1937 Little Genius manual I have and it shows a very long slow curve for a breaking plow ( " N " series ) with a moldboard extension that you described which turns the sod completely over . Near as I can tell the moldboard does not have to have a lot of curve to it to turn over sod it just needs to be long so the forward movement of the plow can pull the high side over the low side leaving the sod upside down . Or maybe a little more speed if you have high speed bottoms . The roots of sod will hold it together very well so this can happen . The moldboard ( " HA " series - IXL Scotch Clipper ) is for clover , timithy or alfalfa sod and stubble and is more like a regular shaped moldboard . These won't relate to your more modern plow probably but I thought it was interesting . I was at a state plow meet last week and they were plowing mixed grass sod . It was amazing at how well they covered at the pace they were plowing ! Most used old rusty plows with a mirror shine on the bottoms . There were some #8's and newer IH's , a couple JD's , a Case rollover and some others . The one thing they had in common was the moldboard extensions . One thing I do know from personal experience is you have to plow at the speed the plow wants to do a good job of covering . That takes trial and error with your setup . I plow with a 1755 oliver and a 565 Oliver 4-16 semi-mount with speedex bottoms and it depends on the soil conditions but around six miles an hour seems to work best in corn ground and about 3 to 3-3/4 mph in old alfalfa sod . I don't think you could plow anywhere near six mph with a old plow though but I haven't tried yet so I don't know . I have three #8's and a JD 555H plow also but haven't used them yet , they are still in various states of repair and my Farmall M's tranny broke yesterday . Good Luck ! ...Randy

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