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Big stuck nut

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1 month 3 weeks ago #239743 by Fat Dan
Replied by Fat Dan on topic Big stuck nut
All great advice. Might try heat cool cycles, heat to red 400-550° then might try candle wax and let cool (map gas may not be hot enough). I weigh over 300lbs and bounced on my 1" braker bar with a 3 5/8" nut. That didn't work as well as I wanted so I gathered up a 15' cheater bar and bounced on it with everything I had until the nut was torqued to ~ tic tic pounds.😁 ~1400lbs - 1800lbs total guess. A good USA made 1' breaker bar should take the abuse.

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955E 12A08263; 955C 12A04040; 955C 12A03563.
No.12 Diesel Motor Grader 8T14777.
No.12 Diesel Motor Grader 9K9320

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1 month 3 weeks ago #239744 by juiceman
Replied by juiceman on topic Big stuck nut
Yes, 18 volt Millwaukee brushless gun 3/4' can do wonders. If that does not do it alone, try the heat method. I wonder if the nut is LEFT hand threaded? Last resort would be to split that nut with a die grinder or such. It would be nice if someone familiar with that BIG nut and winch could chime in. Nothing is impossible, it might just take a little longer....JM
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1 month 3 weeks ago #239745 by neil
Replied by neil on topic Big stuck nut
My understanding is that every heat and cool cycle shrinks the object, so if that's the case, it would be preferable to just heat it up and remove it in one go, rather than letting it cool and get even tighter. I stand to be corrected though.

Cheers,
Neil

Pittsford, NY
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1 month 3 weeks ago #239747 by Rome K/G
Replied by Rome K/G on topic Big stuck nut
3000 ft lb Torque Multiplier, it will give sooner or later. lol
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1 month 3 weeks ago - 1 month 3 weeks ago #239748 by side-seat
Replied by side-seat on topic Big stuck nut
Yes, 18 volt Millwaukee brushless gun 3/4' can do wonders. If that does not do it alone, try the heat method. I wonder if the nut is LEFT hand threaded? Last resort would be to split that nut with a die grinder or such. It would be nice if someone familiar with that BIG nut and winch could chime in. Nothing is impossible, it might just take a little longer....JM

You know, I was thinking that too about a left hand thread after I posted .  Clean the paint off and take a close look at the thread  and you should be able to see if it's starting counter clockwise.
 

Last edit: 1 month 3 weeks ago by side-seat.
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1 month 2 weeks ago #239750 by d2gary
Replied by d2gary on topic Big stuck nut

might be some helpful information in this video
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1 month 2 weeks ago #239753 by josh
Replied by josh on topic Big stuck nut
It’s not a left hand thread, just a good size fine thread nut with a lot of tension on it, that rod is a major part of the structure on the winch, holding the drum and the cast steel housing assembly together, they are tight, I have a 2800 ft/lb spline drive impact wrench, usually have to stand there and let it whack away for a couple minutes, uses a lot of air but they always come.
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1 month 2 weeks ago #239754 by Busso20
Replied by Busso20 on topic Big stuck nut
Hi Neil, when an apprentice we were told that 1 inch of diameter will grow 4 thou with heat (can't remember temp range for it), first heat will shrink the most and the second a little and the third generally shrink is minimal or none,
Was told by a boilermaker that heat the pin not the bush/boss/clevis so it can grow to crush tighter in the tolerance, this will transfer heat out to the bush, then cool pin only slowly to allow it to shrink pin and heat to remain in bush/boss/clevis to be expanded slightly to let go of pin, one day we heated a steering cylinder pin red hot at ends, cooled with trickle from hose and left jack under the pin to push out, we went for smoko and heard a bang, pin came out in hurry dented cab floor underside, pin out with heat and cool only(no hammer work).
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1 month 2 weeks ago #239757 by Rome K/G
Replied by Rome K/G on topic Big stuck nut
True on the air, used a 1" impact to remove track bolts with two cylinder shop compressor, just didnt have the volume, got the Joy out with the D315 at 210 cfm and wulla, spun em right off.
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1 month 2 weeks ago #239759 by neil
Replied by neil on topic Big stuck nut
That's pretty cool Busso, I'll have to remember that - thanks!

Cheers,
Neil

Pittsford, NY
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