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Implement Alley Discussion Forum

Removing Nut off Offset Disk

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peaster

11-01-2007 11:40:49




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I'm trying to get a 3 in nut off a disk to replace a bearing. Its stuck on there pretty good. Using 36 in pipe wrench with a 3 ft cheater pipe. I've soaked it in wd-40 and some other lubricants. I've heated it with torch. No luck so far. I'd like to avoid cutting it off with torch. Do any of you guys have any more tips for removing it? Thanks in advance.




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Billy NY

11-02-2007 07:29:39




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
I just did the same thing on a old set of discs, just as described below the disk broke around the assembly, and that nut was rusted tight to the axle since it was built, I remember this set at out dealership when I was a kid, had brought it to our other place to re-seed a pasture field, one of the hired knobs did that for me.

I had to heat the square nut to a dull red, kept working back and forth, used Free-All penetrant, the heat does most of the work. The impact action be it an air tool or using a hard rubber mallet on the wrench also seems to help, but again I think the heat does most of it, seems to be better to try and move it while it's still hot, not glowing but hot, glad you got it off, I did not think there would be a chance to even get mine to budge.

third party image


third party image

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Kansas Cockshutt

11-07-2007 16:41:05




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 Re: Removing Nut off Offset Disk in reply to Billy NY, 11-02-2007 07:29:39  
Say,

what make and model is that disk? I have one sitting behind the shed, and other then the rotten wood bearings it is all there.

Thanks



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Billy NY

11-07-2007 17:02:35




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 Re: Removing Nut off Offset Disk in reply to Kansas Cockshutt, 11-07-2007 16:41:05  
I've been wanting to know the answer to that question myself. Never found a tag on it, or anything to identify it. It almost looks home built, but I remember it being at our old ford dealership way back in the early 70's and was never used, same yellow paint, it ended up here afterward, got some light use etc. I remember setting it on some wood blocks in 1981, with a borrowed JD 2010, it then sat for 20 years, could not even see it. I freed up the gangs, greased it and it worked fine. Read here that the oil soaked wood bearings were best left ungreased, due to the grease helping abrasive material get into the bearing, and cause rapid wear, although greasing this one did not seem to be a problem, I can see the dry theory working better.

About 2 years ago, I saw a gray one just like it, photo was posted in the implement alley forum, was located in NY, and I think the person was asking the same question, who manufactured it etc. Would be interesting to find out, reminds me of something the Wagner Iron Works or similar company would have manufactured. I replaced the broken disc and used it this year, need to find a cabinete maker to have some bearings made up, have to be cut a certain way with the grain of the wood, oil soaked, supposed to be very durable, even if obsolete.

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Kansas Cockshutt

11-07-2007 18:46:24




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 Re: Removing Nut off Offset Disk in reply to Billy NY, 11-07-2007 17:02:35  
Thanks for the reply.

If I find anything out on mine, I"ll let you know; but mine also has no obvious tags/stampings etc.

Right now it will just sit next to the old Cockshutt plow and await a long winter when projects are running low.



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Jack a

11-02-2007 04:32:52




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
I guy we used to rent land from had an old offset we also rented. Every once in a while I'd break a blade. It would break just around the arbor so the blade would stay on. The owner was a tiler and rebuilt his own equipment including the tracks to his dozers so he knew what he was doing. We tried everything to get the nut off but in the end we just welded the blade back on and went. Worked! I guess we could have cut it off but his welding solution did the job.

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El Toro

11-02-2007 04:20:26




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
I would keep using that torch to heat it. Hal



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Gerald J.

11-01-2007 22:42:33




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
My die grinder with a thin cutoff wheel has cut several nuts in such situations.

Water Displacer number 40 is not the best of penetrating oil. Look for PB Blaster or go on line a buy some Kroil, they work a whole lot better.

A month or two ago Home Shop Machinist did a test of these and a half and half mix of acetone and ATF (they didn't say which ATF and their picture of ingredients showed power steering fluid) was even better than Kroil.

Gerald J.

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John A.

11-01-2007 21:16:57




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
peaster, Heat, then pour cold H20 on it a couple of times, Double or even triple the cheater pipe length. OBTW only use a Rigid pipe wrench for if you break it, it can be replaced. Heat it with a good rosebud tip on the last time, use the longest cheater possible, it will have to give, if enough heat and long enough cheater pipe is used. Hope this helps.
Later,
John A.



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TractormanNC

11-01-2007 19:15:20




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  

one inch impact wrench on 175 psi air.



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peaster

11-01-2007 18:05:34




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
Thanks for everyone's advice. I finally got the bearing replaced. I took the simpliest although not the easiest route by removing the nut on the other side of the axle and dropped the gang off the disk. I would have cut it off but I thought I'd try the other side first. Turns out I needed to replace the other bearings too. I got real lucky and backed the disk right on top the the gang so putting it back on the frame was no problem.

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JMS/.MN

11-01-2007 14:34:43




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
If heating it with a torch does not work- cut it off. Cut down the oxy pressure, and when you get close to the shaft, lay off the oxy handle, let the heat create the bubble, and you can melt it off without destroying the shaft. Bearing is shot anyway- heat will do no damage to that. Why mess around for a two dollar nut?



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Teebogr81

11-01-2007 12:51:31




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
Use two small sledge hammers and tap pretty hard simultaneously on opposite sides of the nut. This will usually free it up and it will spin off. Also you can try tapping the end of the axle while attempting to turn the nut. It would probably even work to tap the opposite end of the axle while trying to turn the nut.



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K.W. in Tx

11-01-2007 12:14:58




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 11:40:49  
If I had a picture of it would be easier guess. Id start by repeated soaking with penetrating oil then if there is any threads sticking out the nut and there is a power source handy(and if you have room around nut) you could take a wire wheel/ or cup on a angle grinder or on a die grinder and clean the threads real good then if you could just get the nut goin on the clean threads it would come off easier. But you say you put heat on it and it didnt move. It should move a little unless its been there for centuries. I have had some luck using a hammer and wrench even after using a cheater before. I also have cut off nuts and could still use the threads, but you have to get the cutting action started on the nut before the bolt gets hot( usually start on the corner of nut)Moving back and forth across the nut. Then ease on the torch when you get down to the threads then let cool and cut the other side, chisel nut off and clean the threads up good.

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peaster

11-01-2007 12:35:47




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 Re: Removing Nut off Offset Disk in reply to K.W. in Tx, 11-01-2007 12:14:58  
third party image

Here's a picture of the nut. As you can see it's kinda in a tight spot. Thanks for the advice K.W. I'm reconsidering trying to cut it off if it doesn't start moving soon.



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supergrumpy

11-01-2007 13:31:51




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 Re: Removing Nut off Offset Disk in reply to peaster, 11-01-2007 12:35:47  
if I had to get that bugger off and could get a replacement nut:

use angle grinder with thin cutting wheel, grind in a slot of the nut to thin the cross section parallel to the shaft, using long cold chisel and proper sized hammer try to split nut along cut

if it won't split you might expand it enuf to loosen it up a bit



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