Farmall M, suggestion to pull steering sector gear

JEK1 · Nov 21, 2019

Do you folks have any suggestions on pulling the steering sector gear on a Farmall M? I want to do this to tighten up the steering a bit.

I have already bopped the shaft with a sledge hammer and tried to get a pry bar under the gear. I even thought to drill and tap some puller holes in the gear but the gear is hard as a brick. Someone before me has already hammered on the stem and expanded the 1.0 dia. threads.

The front of the tractor is presently elevated slightly to allow for the stem to drop from the steering sector gear.

I was hoping you folks would have a good suggestion before I go into a self-destruct mode in getting this off.

JEK1 · Nov 21, 2019

Photo attached.

D Slater · Nov 21, 2019

With shaft already swelled use heat on thin side of gear hub. Or cut gear on thin side and put a full circle gear with unworn teeth centered on worm when wheels are straight. Or get a new gear. My experience is if you need to use a hammer, use a heavy one and make a hit count. Even with nut even with end of threads and a heavy steel plate over that over two or three hits will swell threads. After raising the front wheels a inch or so and a 10 pound sledge if it doesn't drop right away I try something else. Others experience may very or thy may have better ideas.

glennster · Nov 21, 2019

i pulled my 48 m apart with a 3 jaw puller. cant remember if i used 2 or all three legs, seems it was twwo. i hooked the legs on the outer casting, and tightened up the puller. when you get good tension on it, a whack with a hammer on the center bolt of the puller and it dropped out. if you cant get a puller to fit, get a piece of 1/2 inch steel and fabricate a plate that bolts to the cover mounting holes, the run a bolt in the center with a nut to push down on the center shaft, the a quick whack.

fastfarmall · Nov 22, 2019

That shaft looks like it's mushroomed pretty good, you could take a 4 inch grinder and grind the tip, down on the end,so you can get the gear off! A machine shop should be able to restore the threads, or else get a different shaft!

fastfarmall · Nov 22, 2019

But to get the gear off,i think u will have to torch it off,and that's going to be messy!

JEK1 · Nov 22, 2019

I got the steering sector gear pulled off by fabricating a 3/8" thick steel pusher plate and (4) 3/8-16 x 1.0" hex heads. A smaller 1/8 thick steel plate was placed on top of the stem between the pusher plate. For additional pressure, a wood splitting wedge was driven between the frame and the steering pedestal. I tightened the (4) bolts pretty tight and it popped right off with no heat or sledge hammer.

See photos.

Thanks a heck of allot for all the help.

JEK1

BarnyardEngineering · Nov 22, 2019

Wow. I've never had one of them not FALL off. Just reach in and pull it out with your bare fingers. They're so loose on the vertical shaft it's not funny.

D Slater · Nov 22, 2019

Glad you got it. Used to use a plate with sides and cross bar welded on and hole for a shaft to push with hydraulic jack. Learned the hard way on a real tough one the threads could pull out of casting on one side and bust casting on the other side. Glenster may have a better idea by putting pressure on and strike the push bolt head.

mccormicksw4 · Nov 22, 2019

(quoted from post at 05:33:51 11/22/19) That shaft looks like it's mushroomed pretty good, you could take a 4 inch grinder and grind the tip, down on the end,so you can get the gear off! A machine shop should be able to restore the threads, or else get a different shaft!

I would be careful how much I ground off the shaft. carefully grind or file if necessary and buy yourself a Thread file of sometimes called a thread restorer file. They are the greatest thing since sliced bread and there will be no need for a machine shop

Farmall M, suggestion to pull steering sector gear

JEK1

Member

JEK1

Member

D Slater

Well-known Member

glennster

Well-known Member

fastfarmall

Well-known Member

fastfarmall

Well-known Member

JEK1

Member

BarnyardEngineering

Well-known Member

D Slater

Well-known Member

mccormicksw4

Member

Similar threads