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Farmall Super A Tranny and rear end??

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Bob

10-22-2002 16:39:02




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I am in the process in replacing all the seals and brakes in the rear end of a farmall super a for a guy. and I noticed some oil dripping between the two castings right in front of the tranny ( or under the battery box) I am pretty sure it should be dry in front of the tranny? I was thinking maybe the front input shaft seal on the tranny? Hs anyone ever split one right here? Any hints or suggestions on doing this? Anything else I should check for while I have it torn apart? Any thoughts would be appreciated! Thanks Bob

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Bob

10-23-2002 12:38:28




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 Re: Farmall Super A Tranny and rear end?? in reply to Bob, 10-22-2002 16:39:02  
Thanks for the advice everyone! But I have another question. I started disassembly of the right final drive unit and found that the bearing that goes behind the wheel hub is pressed onto the shaft. What is the best way to remove it? Any suggestions would be appreciated! Thanks Bob



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larry

10-11-2003 05:38:50




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 Re: Re: Farmall Super A Tranny and rear end?? in reply to Bob, 10-23-2002 12:38:28  
I have the same question . I'm trying to replace the bearing in the right final drive but the inside bearing will not come out. It's a yellow cud 73 model. I have taken all covers and bolts off - maybe i could pound the shaft out and the bearings will fall out then ????? ???



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Haas

10-22-2002 20:39:24




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 Re: Farmall Super A Tranny and rear end?? in reply to Bob, 10-22-2002 16:39:02  
This is a fairly easy split, certainly no more difficult that splitting at the clutch. I did it a while back on my Farmall C. One of the posts below mentions that you have to take the drive shaft coupling loose before you do the split. That is not correct. All you have to do is take everything loose on the outside(the throttle rods, the touch control rods,clutch linkage and anything else that goes accross the joint) Then support the front and the back (On the C, the back is nearly balanced). On the A, I would block the front axle with wedges and then support under the clutch with cribbing. You could rig an engine hoist to hold the back. Then you take out the bolts at the joint and the drive shaft will slide right out of the clutch as you roll back the rear section. I used long bolts in the joint holes as a guide. In my case, I had no trouble getting the drive shaft to slide back in the clutch when I reassembled. Just make sure you don't disengage the clutch while the thing is appart. If you do, the clutch plate will fall out of alignment and you will have a lot of trouble. You will need to take the drive shaft joint apart after you get things far enough apart to do that. That is necessary to remove the rear half of the coupling so you can replace the seal. You will find two shaft ends, bottom one is the counter shaft end, covered with a cap and gasket. That was where mine was leaking, as someone had reassembled without the gasket in the past. Top shaft is the main drive shaft and has a seal that runs on the coupling half and also a gasket under the seal holder. I'd replace all the seals and gaskets while you have it apart. Also make sure you have both dowel pins in the joint. One was missing in my C and the hole it was supposed to go in was open all the way into the transmission, also causing a leak. Hope this helps.

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Anbele

10-23-2002 07:41:53




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 Re: Re: Farmall Super A Tranny and rear end?? in reply to Haas, 10-22-2002 20:39:24  
Sorry fellows, but this seemed to be the best way to get a quick answer. I am looking for the service manual for a Farmall "Type A" tractor, circa 1940. Much thanks for any help you may offer.



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Al

10-23-2002 06:18:54




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 Re: Re: Farmall Super A Tranny and rear end?? in reply to Haas, 10-22-2002 20:39:24  
Haas and others,

Have you run into problems with the new seals holding? I have had my SA repaired as described, the mechanic felt like the shafts were all good but several still seep. I'm thinking these parts need a Speedi-sleeve because there must be excessive wear on the sealing surface of the shafts. Ever done this before?

AL



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gene b

10-22-2002 17:39:35




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 Re: Farmall Super A Tranny and rear end?? in reply to Bob, 10-22-2002 16:39:02  
yes there is a seal there you can unhook the drive shaft there also as there is a universal joint there the fur is supproting the tractor when doing it have done three of them this year and got another one to do this week. But i have a gantry hoist and wheels to put on to do the job easier. But it is a job with the hy unit and all the controls and the clutch and brake pedal assy. Wish i was there to help.

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ScottyNY

10-22-2002 17:34:38




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 Re: Farmall Super A Tranny and rear end?? in reply to Bob, 10-22-2002 16:39:02  
It's not that bad a job, Bob, if you're set up to split the tractor. You might be able to get the bolts off that joint to split between the torque tube and the tranny so that you can roll the rear end back, but it's doubtful. The space to turn a wrench through there is more than tight and the bolts are even tighter. In the long run it will probably be easier to split behind the engine and then take the torque tube off. Sounds worse than it is. There are four bolts, two facing forward, two aft, on the joint between the shaft and tranny. Once that joint's open, there's a bolt through the tranny side of the joint with a washer beneath. After that a two-point puller will pull it in good order. Then it's just a matter of taking off the collar and replacing the seal. If the gasket on the lower cover is seeping, well, no time like the present. The seal and the gaskets (one behind the collar around the shaft, the other around the lower cover)are still CaseIH parts. If your local dealer can't get them, Carter and Gruenwald has them. Most important part in splitting is the safety, supporting things so they don't fall on you. The A is not too bad, better than a B, anyway, for balance. I've read threads about running a stout bar through the cultivator mounts and supporting each end of the bar on a jack stand. Hope this is not too much detail, but still enough. Email is above if I can help more. Good luck! ScottyNY

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Paul Shuler

10-22-2002 17:11:52




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 Re: Farmall Super A Tranny and rear end?? in reply to Bob, 10-22-2002 16:39:02  
Look two post below yours, "BN going for paint" there is a link there where Scotty goes into quite a bit of detail about replacing these seals with some nice photos.



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