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Pulling sector gear from bolster shaft...


 
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John Fulton
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PostPosted: Fri Oct 05, 2012 10:57 am    Post subject: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

Am taking Janicolson"s advise on correcting front end wobble of an H Farmall regarding replacing bushings and sector gear on top bolster shaft. Standard 2 or 3 arm gear puller does not fit over the half moon shaped sector gear. Does anyone have experience in doing this? Is there another type gear puller that will work? This gear is swedged on really tight, and I cannot remove shaft for inspection without sector gear coming loose first.
 
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David G
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PostPosted: Fri Oct 05, 2012 11:04 am    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

I did mine the opposite way. I jacked up the front end, backed the nut off until it was flush with top of shaft, then tapped soundly on top of shaft. The weight of the wheels helped pull it.
 
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John Fulton
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PostPosted: Fri Oct 05, 2012 11:12 am    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

Good idea David, but I have already dropted my front wheels, and you know what a pain it is to put them back on by yourself. If nothing else works, I will try your method, though, Thanks. I have been pounding on the shaft a bit, though!!
John
 
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Zachary Hoyt
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PostPosted: Fri Oct 05, 2012 11:20 am    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

It has been my experience that sometimes one good whack will do more than a lot of smaller ones. I would get a piece of hickory or maple or other dense wood and put it on top of the shaft and hit it pretty hard with an 8 or 10 pound sledge. Often one hit is all it takes. I would also put a block of wood or something under the shaft so that it doesn't fall too far now that you have taken the wheels off.
Zach
 
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Janicholson
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PostPosted: Fri Oct 05, 2012 11:40 am    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

Putting a stout prybar between the lower bloster plate and the casting so as to put down force on the shaft (maybe two of them on opposite sides) can ad real force to the process above that of hammering alone. The weight of the lower bolster and wheels wopud be in this same direction. Do not try to use these bars to do the entire job as cracking the casting is possible. Heating the gear up with a propane torch or heat gun while trying to stay away from the shaft and threads will expand the gear and make it pop easier than when cold. Heat it till the grease smokes, not red (unless you intend to change the gear and shaft!!) Jim
 
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Rod51M
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PostPosted: Fri Oct 05, 2012 4:41 pm    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

As a side note, my M has front end wobble too when in high gear on the highway. I think I traced it down to slack between the half gear and the tapered spline it mates to. It is down as far as it can go on the spline so I can't tighten it anymore. I got some thin brass shims about 1/8" to 1/4' wide and I am going to try placing them between the gear and spline to try and fill the gap/slack. Does anyone see anyway that this might damage anything that I am not thinking of?
 
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IAtractorKid
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PostPosted: Fri Oct 05, 2012 5:47 pm    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

Still works without the weight of the front end on there. Put the nut back on, loosely but make sure it is fully engaged and then give it a good whack with a 2lb ball peen hammer. Make sure to hit it square. Should drop right down.
 
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LA in WI
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PostPosted: Sat Oct 06, 2012 8:06 am    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

Zachary is right. Have nut cover end of shaft, lay a piece of hardwood on it, drop a sledge on it and it comes loose easily and with no damage.
Better than wailing away with a small hammer.
LA in WI
 
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CGtractor
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PostPosted: Sat Oct 06, 2012 8:35 am    Post subject: Re: Pulling sector gear from bolster shaft... Reply to specific post Reply with quote

I had success with the method that David G described.
 
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