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Farmall & IHC Tractors Discussion Forum
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Super A transmission disassembly

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Russel Berg

07-08-2004 22:27:50




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I am trying to replace the 1st & 2nd combined gears on a 1953 Super A and I can't figure out how to remove the spline shaft. The IT shop manual is singularly unhelpful. I have the PTO, and the spline shaft bearing retainer, and the shifter cover off. I can't see how to move the shaft either forward or backward because the reverse gear is rivetted to the shaft and will contact either the case going backwards or the second gear going forward. Do I need to punch out the reverse gear rivet to be able to slide out the shaft? Does it come out forward or backward?
Do I need to push out one or both bearings to get it out?

Help!
Thanks.

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Kevin in Va.

07-09-2004 11:58:34




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 Re: Super A transmission disassembly in reply to Russel Berg, 07-08-2004 22:27:50  
You can use almost anything to hold that thing together. Mine was held in with a long piece of steel that was just bent over on the ends. My guess is that my transmissions been apart before. I like the bolt idea.



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lee

07-09-2004 08:31:05




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 Re: Super A transmission disassembly in reply to Russel Berg, 07-08-2004 22:27:50  
Kevin's process looks good but I'm not certain the spline shaft won't clear the diff. Clearly, the diff must come out to remove the counter shaft.



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Kevin in Va

07-09-2004 04:14:00




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 Re: Super A transmission disassembly in reply to Russel Berg, 07-08-2004 22:27:50  
Had the same problem with my Super-A transmission. I read and re-read the I&T Shop manual to make sure that I didn't miss anything. Here's a condensed version of what I had to do.
1. remove the spline shaft front bearing cap. 2. Remove the Rivet or whatever is holding the reverse gear on the spline shaft.
3. Bump the spline shaft back towards the rear of the tractor and out. Had a problem with this step as the rear bearing came out and caused clearence problems with the differential. Had to remove the differential to solve this. I don't know if this is something that frequently happens as this is my first tractor.

My transmisson case is totally empty at this point and ready for cleaning.

I've left my email in case you want to contact me. Good luck.

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Russel Berg

07-09-2004 09:39:07




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 Re: Re: Super A transmission disassembly in reply to Kevin in Va, 07-09-2004 04:14:00  
I was afraid of that.

Then the next question is, how do you get it back together? I can't see how to drive the rivet in the reverse gear with it inside of the case. How do you round the driven end of the rivet without holding the other side?



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Duane

07-09-2004 10:16:05




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 Re: Re: Re: Super A transmission disassembly in reply to Russel Berg, 07-09-2004 09:39:07  
When I reassembled my A transmission I used a bolt and nut to replace the rivet. I cut the bolt length just so a little would come through the nut. Then a hammered the end of the bolt down like a rivel so the nut would not work off.



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