McD 200H Spreader

[Mark Cowdrey]

I have this spreader. The 3 lobe “sprocket” on the rear axle (right side) that drives the bed chain is broken. Any suggestions for finding another?

Thanks,
Mark

[Mark Cowdrey]

Here are a couple photos showing the spreader & trying to show the piece that I need.
Thanks.

Mark

[Marshall]

I would try MacNairs in PA. If he doesn’t have one he could probably help you find one. (717)543-5136

[Joshua Kingsley]

Mark,
You seem to be pretty handy with your welder and tools, If you have the other piece get some good nickle rod and a bag of charcoal and have at it. Worst case senerio is that it breaks and then you are right where you are right now.
If you don’t have the broken ear you could take the piece out and see how it is made and try to build a piece to fit if you can’t buy one.

If you really don’t want to mess with fixing the broken part with welding i would second McNairs, Norm is a font of information on older equipment.

Joshua

[jac]

Mark that spreader looks the same as the old Massey-Harris we got over here.. might be worth a cross check to see if there is any parts interchangability.. if not then Josh is right, you’ve nothing to loose.. other option is to fabricate a replacement.. the boss will be keyed onto the axle so most bearing suppliers can get bosses with key channels cut in them. then go to your steel stockist and get them to profile cut a 2″ thick piece of steel with a hole to suit the boss and weld the two together.. sounds a long way for a simple part but if you cant source a replacement it might be the only way to go.. looks like a great spreader otherwise.. good luck..
John

[Mark Cowdrey]

Joshua,
I’m not much of a welder, I tack together the arches I make & have a “real” welder do the structural stuff. BTW, in reference to the welding thread that is going, I use a Hobart 110 rig with flux core wire and have been very happy with it. I learned to gas weld years ago but have never used a “stick” machine. What is the role of the charcoal? Make a fire to heat the whole piece before working on it? And nickel is the rod choice for cast?

Jac,
Having a piece fabbed out of 2″ steel is a fascinating alternative though I expect it would be pricey. Then again, we’ll see what Norm at MacNair’s (Thanks, Marshall) will want for an OEM piece.

Joel,
Townline is over in Plainfield, NH. I was over there the other day for rake bearings. Are you thinking they might have the part new?

Thanks all,

Mark

[mitchmaine]

hey mark, i know i have one of what you are looking for. it’s on my old spreader that i’m keeping for parts for the better one. but i have another spreader way out back, same vintage, that was parts for the parts spreader once. forgot i had it til pen reminded me of it. i’ll look and see. it’s a tough part to retrieve. you may have to take the whole thing. talk to you later. mitch

[Mark Cowdrey]

Thanks Mitch & congratulations! With that last post, your 100th, you became a Senior Member😮

[mitchmaine]

thanks mark, i’m pretty much a senior everything nowadays. ha! anyway, i checked that cam, and they are identical on all three spreaders, so i either have or don’t have what you need. i couldn’t see it too well in your photo, so i’ll try and get a measurement for you. as the wheel turns the cam rolls along your three legged part and pushes a wedge over the top of a notched bull gear, advansing your bed chain, right?

[Joshua Kingsley]

The charcoal is for heating the part to a cherry state after you have ground out a V in wich to get good penetration in the cast if it is cast iron. Nickle will adhere to the casts porious structure of the cast iron. When it is heated to a dull red and then brushed with a wire brush you weld the hot pieces together and then place back into the heat or into a pile of sand to cool slowly.
With cast steel I have found a higher nickle rod will take the abuse with a lower heat on the amperage and that will allow the weld to have a better “flow” than you could achive with some of the other rods on the market.

On a side note my uncle and I have welded mower wheels with the heat and weld method with great sucess.

Just some ramblings from a young farmer
Joshua

[Mark Cowdrey]

Joshua

Well the machine came to me like this so I don’t have the broken ears. Interesting to hear about the technique though. I had a machinist fix a broken mower gear for me once. I don’t know what kind of stick he used but he would weld a little then peen on the weld w an air hammer. If I remember right the theory was that the peening made the weld material expand as the cast cooled & the crack/break tended to open back up. At any rate, it worked.

Mitch, yes, you are right about the piece I need. I’ll PM you.

Mark

[mitchmaine]

mark, trying to send you a photo of this hub. it’s got a 2″ axle and key and has a cast hub attached for the pawl drive to drive the cam.[IMG]spreader hub 2[/IMG][IMG]spreader hub 1[/IMG] cross your fingers, hope this works.

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