Special 4 slot lock nut socket???

Hello, I'm in the process of restoring my mf220 backhoe and while I have it apart for paint, I was gonna go ahead and change these rotation bearings since these are the originals dating 50years at least. So figured they are due, the bearings actually arnt loose but they are pretty stiff to turn by hand. But I just figured if I want another "50years" of use out of it I better change them cuz I will not be taking this back apart this far down. Anyway these lock nuts on the bottom bearing is where I'm hung up.

Has anyone taken these off before and have some pointers to aid me in the removal?

Or a special socket that will fit this?

Or am I gonna have to go with my idea of making a special tool?

The 4x4 locknut sockets autoparts stores is only 2 1/2" diameter, this locknut is 3 inch or 75mm.

Pic#2- part 32 on manual page is what I'm working on...

mvphoto110359.jpg


mvphoto110360.jpg
 
I already tried a punch and hammer to see if it would budge and of coarse it didn't. I really didn't expect it to since its been on there since this was made. But I boogered up one lip doing that so I stopped and figured I better find something to fit all four slots and turn with a "socket" to get full force. As that's what it needs since it's been on there for decades and it has some scratches from stuff rubbing the bottom there. So that first thread exposed on shaft is probably rough so once that first locknut comes off, the second should come off fine since the threads will have been cleaned with first one.
 
(quoted from post at 08:25:06 10/01/23) yes there is them sockets for that , use with an impact.

Well, that's great but, I think that what he'd really like to know is where to get one.
 
I have a socket (I guess you would call it that) I made to deal with a nut of that style. I made it from a piece of heavy wall pipe and four pieces of key
stock. If you're interested in trying that for your application I can go into more detail on how it went together.
 
go to NAPA. or any other store like it. GREG'S DIST., BUMPER TO BUMPER ,more than one place to go.
 
(quoted from post at 10:56:18 10/01/23) I have a socket (I guess you would call it that) I made to deal with a nut of that style. I made it from a piece of heavy wall pipe and four pieces of key
stock. If you're interested in trying that for your application I can go into more detail on how it went together.
I think this is what I'm gonna try making. Sounds better then the idea I was thinking but very similar minus the key stock which is an improvement from what I was thinking. And yes also when I get my special socket made to fit it I'll heat the nut up with acetylene torch for extra persuasion. Not a big fan of boogering up the nut with a punch, I need to reuse this nut so I'd like it to be somewhat decent.

Thanks for all the replies with suggestions. I like options!!!
 
(quoted from post at 09:46:11 10/02/23) It would probably come loose with a punch if you heated the nut with a oxy/acetylene torch first.
ey ptfarmer, your nudge is how I ended up winning the war... I went all out to make that tool and it didn't work as good as I thought it would have, I probably could have spent more time on it to make it perfect but am I trying to fab tools here or fix the task at hand lol. I heated that nut up all around and BAM smacked it with my 5lb hammer and punch, loose as a goose! Second one came off easy as expected.... also didn't even hardly round that edge on that slot anymore either. I was way over thinking it, then came to my senses and realized after I get it off I'm just gonna put it back on tighten it up and never remove it again in my life I'm sure. This thing is already 50+ years old, I imagine the bearings I'm replacing will outlast the machine. But I do plan to keep it clean and in tip top shape from here on. Idk how people just leave there equipment dirty all the time just repacking more and more on top lol. Who know this backhoe might make it to 100 years old...
 

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