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3000 center axle

B

Beststash

Member
A couple of pics of my center axle. The bushing was still in the axle although almost worn through. The hole appears to be worn out but strangely enough it seem that the "bottom" is what is worn? Is there a top and bottom to this axle? I would have thought that with all of the weight it would have worn on top? I'm guessing a new center axle. I have had bad luck on replacement spindles and am a little leery on where to get them. Would it be better to try and have this one repaired vs a new one?

7582.jpg
7583.jpg


Here is the bolster. All the threads are there but the pin has some flop. I getting a new pin and see how it looks before deciding what to do.
7585.jpg
 
All of the weight of the tractor is transferred to the axle through the center pin that goes through that hole, so the pin puts all of the weight on the bottom of the hole.
 
Duh - Of course, I'll use the excuse that I had a senior moment :).

Repair or new? Are these pieces cast steel or iron?
 
i've seen plenty worse.. unless i had better spares around back.. I'd be inclined to save that one..
 
I'm not sure what it's made of, but I have seen posts by others who have built up the worn part of the hole with a welding stick and then ground it back down to original specs. It lasted 40 years or so to get worn to where it's at, so even if you use a welding stick that's not quite as durable as the original metal, maybe it'll only last 25 years before it needs it again.

Hopefully someone else who has more experience with it than I will pipe up soon and offer their advice.

I think it's amazing that you can still get replacement parts for things like this on a 40 year old tractor. If you do decide to go new, this site does sell the part new for $181.03 plus shipping (Why the 3 cents? are profit margins that slim?)
 
The axle beam is cast steel. It can easily be welded and machined if necessary. Weld with a 7018. If the hole is badly worn it may be best to overbore the hole and install a repair bushing. I'd just take it to a machine shop and discuss it with them...
Regardless, make sure the wear bushing is tight. Most of the wear is also generally concentrated on the pin so that's best replaced.

Rod
 
The one on this site is post 8/70 without the radius holes - I plan on calling just to see if the other is available. But first I am going to talk to a machine shop I think.
BTW - anyone know if there is a top or bottom? IT sure looks like it can go either way to me.
 
My neighbor has a shop press. I removed the entire bolster with center axle intact and soaked with oil and used the press. It came about halfway out pretty easy and stopped. Soaked some more and it came on out. The 2" spacer looked like it wasn't worn at all so I am going to reuse it. The pin must fit pretty tight because I think I am going to have to use a wire brush to clean out the rust enough to get another one back in.
 
i imagine the weld deposit, even from an anemic 60xx rod will be harder than cast steel... so should be an overall wash.. in any case, yeah.. no more messing with it for decades..
 
If I remember these contraptions correctly there are several places that could be worn
Where was the majority of the wear?
1) ID of the center axle hole?
2) the center axle bushing?
3) ID of the spacer?
4) OD of the spacer
4) OD of the pin?
5) ID of the bolster?
All of them are probably worn some but where is the worst of it?
How much out of round is the center axle hole?
 
Doesn"t the pin have threads??

Sorry for these dumb questions, but I"ve got to do this one of these days on my 3600, and I"m not looking forward to it.
 
It does but my pin had so much wear in the hole with the threads it was not holding it. In my case the pin had "grown" to the spacer and it couldn't ever have come out. In your case (3600) they no longer use the spacer. They went to a 2" pin vs 1.75" pin inside a 2.1" OD Spacer.
 
1 - The center axle hole seems mostly worm on the bottom edges - center of bushing area seems flat. It looks like a new bushing will be tight. I won't know until I get some parts in (local NH dealer did not have the bushing or pin in stock)
2 - the center axle bushing was still there all the way round except for edges where the axle must have rocked back and forth through the years
3- the ID of the spacer is like new. even the existing pin is a good fit without any play at all. In fact I had to take the grinder brush and clean it up to get it to slide easily in the bushing
4 - OD of pin is mostly like new except the threads have no "set" to them. there is also some wear (very little) on the part rides at the front of the bolster.
5 - it appears that the bolster is worn in both front and back a little. I won't know how bad until I get a new pin. From appearances I'm thinking that a new pin just might thread into the bolster or at least be very close. Of all things, the bolster is my biggest concern.

I am getting new drag links and tie rod ends - they were long gone. The front end will be much tighter for sure.
 
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