It's NUTS!!

RayP(MI)

Well-known Member
Well, one nut, anyway, and it's driving me nuts. I was disking the other day with a Massey Ferguson 3 point disk, Model 39 if I read the corroded tag properly. Well, the nut on the axle came off, and I lost the nut, about 3 washers, a 4" washer, a disk blade, spool and damaged a second disk blade. Somewhere in a 3 acre field. Have a couple blades, some washers, and a nut in stock. The spool is on order from Shoop (they don't give those things away.) The shaft is an inch in diameter, and I have a couple nuts which thread on to it. Problem is, what wrench do I use? Nothing I have fits it. Took the nut to Harbor freight, and Menards. Closest I can come is a 1 1/2" combination box end/open end wrench. But that is quite loose on the nut. Next smaller was too small. Tried Metric, and no luck there either. So I got out my handy-dandy digital caliper. Read across the flats, 37.18mm but a 37mm wrench wont fit. No 38 mm wrenches available, would be loose if they did. Read across the flats, 1.460inches. Anything less than 1 1/2 inch wont fit and that one is very loose. Read across the flats 1 59/128 inches. Who ever heard of a wrench that size?


Looking for a 4" washer with 1 inch hole, about 1/4" thick.
 
A plasma torch and a jar lid for the outside, and a JB weld a pop bottle top for the inside hole. Welding shop it is a non issue. Jim
 
Only you and the nut will know if you mark it up. In a short time it will be worn down from the dirt anyway. Stan
 
use a 36 " pipe wrench to tighten those nuts. you wont get them tight with just a wrench. can built a washer from flat plate. most have a locking tab also behind the nut. or just spot weld the nut to the washer to help prevent backoff.
 
Something I have done in the past is to cut up some steel shims from roofing/siding material. Not sure how well soda can shims would work, but might be worth a try in a pinch.
 
Pipe wrench and a big hammer to get them tight enough. Then whack the back side after it's tight and so it all again til it doesn't tighten again.
 
I used a pipe wrench to. If you really don't want to scar up the nut make your own axle nut wrench. It is built like a blade nut wrench for a sawmill.

Take a piece of 1/2 in flat steel about four inches wide and eight inches long. Lay the nut about an inch and a half from one end and draw the outline on center of the steel. Use drill holes, Sawzall and a file to make the hole for the nut. Bolt a 3/8 × 2 × 3ft bar to the other end for the handle. The washer won't be hard to make either. Just pretty up the edges with a belt sander or grinder.
 
I had pipe wrenches, but I made the final tightening with a hammer and tightened after every pound until would tighten no more then bend the tab.
 
I just use the 1 inch impact while somebody hits the back end of the shaft. When it stops I let it rattle a bit and call it done. Did that on the 30 foot sunflower disk and had been fine for over a year now. I also cut old discs out to use for shims if need be with the torch and grind the edges smooth.
 
Only three acre field to search I would have a magnet and find that stuff you would be suprised how that stuff sticks out.
 
(quoted from post at 21:10:41 11/09/20) Well, one nut, anyway, and it's driving me nuts. I was disking the other day with a Massey Ferguson 3 point disk, Model 39 if I read the corroded tag properly. Well, the nut on the axle came off, and I lost the nut, about 3 washers, a 4" washer, a disk blade, spool and damaged a second disk blade. Somewhere in a 3 acre field. Have a couple blades, some washers, and a nut in stock. The spool is on order from Shoop (they don't give those things away.) The shaft is an inch in diameter, and I have a couple nuts which thread on to it. Problem is, what wrench do I use? Nothing I have fits it. Took the nut to Harbor freight, and Menards. Closest I can come is a 1 1/2" combination box end/open end wrench. But that is quite loose on the nut. Next smaller was too small. Tried Metric, and no luck there either. So I got out my handy-dandy digital caliper. Read across the flats, 37.18mm but a 37mm wrench wont fit. No 38 mm wrenches available, would be loose if they did. Read across the flats, 1.460inches. Anything less than 1 1/2 inch wont fit and that one is very loose. Read across the flats 1 59/128 inches. Who ever heard of a wrench that size?


Looking for a 4" washer with 1 inch hole, about 1/4" thick.

1st thing I usually do is go for a walk with my metal detector in the area I figure the loss occurred, success averages 50%+

A 1 1/2 wrench is 1.500 minus the 1.460 of your nut is a difference of 0.04 a 1 1/2 wrench with a piece of shim stock would fit tight.

Option 2 if the nut measures 37.18 mm run the faces of the nut over a belt sander and take .004 inch (the thickness of a sheet of paper) off each flat then use the 37 mm wrench.

Option 3 run a file over the 37 mm wrench to open it up a little, probably never need that size wrench for anything other than that one nut again anyways.
 

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