Castle nut won't tighten on front axle.

farmalldave75 · Feb 8, 2022

Hello I need some info and help on what to do next. I have a 706 narrow front. The guy who had it neglected the tractor. The front tire and rim was off the pedestal when I bought it. I thought it would be alright so got new bearing and installed them finally tried to tighten the castle nut and it will not hold gets tight and then spins freely. I tried to stand the threads back up on axle and castle nut by cutting new threads and that didn't work. What can I do next any tricks or will I have to find a new front pedestal. Thanks for all advice.

jon f mn · Feb 8, 2022

Try a new nut. I've gotten by with that several times

centash · Feb 8, 2022

Recut the threads and get a new nut...?

Ben

centash · Feb 8, 2022

Ha ha.! Great minds think alike...and at the same time!

Ben

wore out · Feb 8, 2022

ONE type of axle thread repair nut, IF you can find one in the size you need. Some gave great success with them, others hate them.

Another type of repair that could be relatively easily made in the needed size by a machine shop.

Ted in NE-OH · Feb 8, 2022

Lock tite

Mike M · Feb 8, 2022

Get a new nut and get one for a Ford tractor if the threads match up. This site even has them. They are split like a collet and have a lock nut that goes over them and is tapered to draw it down into the threads. These work great. Used them on a few JD's with shot threads and they held up well.

ss55 · Feb 8, 2022

Did you get a narrower bearing or loose the washer that was between the castle nut and the bearing?

jon f mn · Feb 8, 2022

Lol, I was surprised I was first.

glennster · Feb 8, 2022

where are you located? i may have a narrow front off a 706 in the barn in my treasure pile. i am in n central illinois. email open

gene bender · Feb 8, 2022

the threads on the spindle are bad you need one of those nuts that are split and you can tighten.

farmalldave75 · Feb 8, 2022

This post was edited by farmalldave75 on 02/08/2022 at 06:18 pm.

farmalldave75 · Feb 8, 2022

I'm in Ohio how do I send a pm to glenster

This post was edited by farmalldave75 on 02/08/2022 at 06:22 pm.

jCarroll · Feb 8, 2022

I used shim washers between the castle nut and the bearing race. Put the pin through the spindle hole - see if the bearing is tight enough - if not, add another shim washer - reassemble, Test again, etc, etc

tirediron570 · Feb 8, 2022

I've got a pedestal with hubs from a 560. Located in southern Ohio.
937-763-2714

Mike M · Feb 9, 2022

I have used the ones like in the top image before with great success. I got them at a local Ford tractor dealer.

BarnyardEngineering · Feb 9, 2022

You can't cut threads bigger. The problem is the threads are stripped and the diameter of the shaft is too small already. You can only go smaller.

The nut spins. The threads are gone. There is nothing for one of those clamping nuts to grab on to.

I don't know how you'd machine the axle down enough to take threads for the next size smaller nut, on the tractor, with basic tools, but that's the only way to make the existing axle work.

There is no loctite product on this planet that will hold when there are no threads. Unless Loctite makes welding rods, because you could weld the nut on.

Realistically the only solution is to replace the entire front end. Once it's out from under the tractor maybe someone can do something to replace the axle, but on the tractor the options are limited.

glennster · Feb 9, 2022

farmalldave, my email is open in classic view, just click on it and send me an email. it looks like tirediron posted he has one in southern ohio,
, it would be a lot closer. if his doesnt work out give me a holler . shipping would be spendy as this critter is heave.

ss55 · Feb 9, 2022

Oops, I missed the part about the spindle threads are stripped. You can probably replace the front end for $150, less than the cost to repair it.

jon f mn · Feb 9, 2022

It is posible that there are some threads
on the axle. Usually half the nut and half
the axle threads are gone. Thats why
sometimes a new nut will grab enough of
the old axle threads to hold for a while.

Fritz Maurer · Feb 9, 2022

If the threads in the vicinity of the cotter pin hole are intact, go to the hardware store and get a rod union. Thread it on til the bearings are tight, then saw off the excess flush with the end of the spindle. Then depending on how particular you are, you can either drill through the nut and spindle for a cotter pin , or a nail, or you can stake the threads with a center punch.

miangus · Feb 9, 2022

Used one like that on a New Holland rake gear box.

SVcummins · Feb 12, 2022

Cut a a slot in the nut weld it back together and grind the weld down have to be careful or youll make it to small

Castle nut won't tighten on front axle.

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