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Old disc

IH?

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screaminghollow

02-06-2002 00:30:22

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I pulled an old 8ft tandem disc out of the bushes on a corner of my farm. On the end caps of the rear set, there appears to be a stamped number and an "IH" inside a circle. I pulled it down toward the barn to see if it can be fixed. There was not a lot of metal on metal sound like bearings grinding etc. The bearing housings do not appear to be cracked. Where the disc axles go through the bearing housings, the axles appeared to be centered. (I wouldn't expect them to be centered if the bearings were badly wore out.) On the front sets, there are square nuts and some sort of heavy ears sticking out on opposite sides of the square nut. They would appear to be in the way of trying to remove the nuts. How do I dis-assemble this thing without destroying it? Do I first remove the bolts from the bearing housing, or the nut from the end caps of the sets of discs? If I remove the square nuts first, how do I get those ears out of the way? There appear to be something like hub caps in the center of the front set, but I don't see a rolled edge like auto hub caps, do those come off and how?

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F14

02-06-2002 03:15:16

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Re: Old disc - IH? in reply to screaminghollow, 02-06-2002 00:30:22

I'd split the bearing housings and drop the disc sets out.

The tabs on the square nuts are keepers, you can just bend them back out of the way. Sneak a small chisel between the tab and the nut to start it, then tap it flat with a hammer.

The "hub caps" have me confused. At inside of the front sets, there may be a large (say 4" diameter or so) hubcap shaped casting that the axle sockets into. They are (I believe) designed so that the innermost of the two front sets can bump together without damaging the disc blades.

Once you drop the lower bearing housings and get the disc sets out, the remainder of disassembly should be apparent. Chances are your bearins will be made of a bakelite-like substance, and hard (if not impossible) to find replacements for. On mine, I made some out of hardwood.

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Bob

02-06-2002 14:34:09

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Re: Re: Old disc - IH? in reply to F14, 02-06-2002 03:15:16

The big washers were called bumper washers. At our shop we always removed the gang from the frame then removed the big nut and the square axle. If it is 7/8 inch square probally is a 10-A, if its 11/8 square, 9 series If the weight boxes have solid bottoms then a 19-B. There are no inserts, nor seals-cast spool and cast bearing caps. If it should have wood inserts then it is older than the above models. These built about 1930 to the early 60's.

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