SA PTO Seal removal

Farmall Super A, AV, 100, 130, & 140 1939 - 1973

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Dale Finch
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SA PTO Seal removal

Postby Dale Finch » Tue Apr 05, 2011 9:09 pm

Anyone know the best way to remove the PTO Shaft Oil Seal? I have the PTO off the tractor and dissassemled from the Belt Pulley unit. I started to remove the Power Takeoff Gear (on the inside) so I could push the whole shaft out, giving me better access, but decided to try from the outside. Began digging at it (remembered it was a bear on the Cub, too) but have only managed to get about half of it out. Now it's a mess, and probably too late, I am seeking advice. It looks like it goes on forever! My only consolation is that I have the luxury of having a second PTO if I totally screw this one up!

I don't think I have done any damage...yet!

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Re: SA PTO Seal removal

Postby Boss Hog » Tue Apr 05, 2011 9:46 pm

crimp the edge in with a small chisel take your time if it is the original it is very think. It will come out
Just take your time

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Dale Finch
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Re: SA PTO Seal removal

Postby Dale Finch » Tue Apr 05, 2011 9:58 pm

Yeah, that's pretty much what I had done, but it just keeps going! I almost think it must be two, back to back. I know the old ones were much thicker, and the belt pulley one I got out OK and it was about 3/4" thick. But this one would have to be at least 2" thick. Hmmmmm... I'm leaning toward going back to the other side, but getting that PTO Gear off didn't go very easily, that's why I started "digging". I'll start on it again tomorrow and see how it goes.

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John *.?-!.* cub owner
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Re: SA PTO Seal removal

Postby John *.?-!.* cub owner » Wed Apr 06, 2011 9:15 am

I have never dealt with a super A, but on the H, many of the seals were 2 separate seals in a single housing. When you got the seals out you still had a shell that had held them together that needs to be removed. They are really tight.
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Re: SA PTO Seal removal

Postby Bigdog » Wed Apr 06, 2011 10:18 am

Dale - keep diggin' until you hit paydirt!
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Dale Finch
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Tractors Owned: '55 Cub "Bertha"
'55 Cub "Ben"
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'56 Cub "Boris"
'48 Super A "Bubba"
Circle of Safety: Y
Location: NC, Chapel Hill

Re: SA PTO Seal removal

Postby Dale Finch » Wed Apr 06, 2011 10:37 am

Yes, we already got a double seal out...guess it was felt and leather? There was a spring with the first. The reason I think we hit a second is that we got the "housing" for the first out, then got a cover plate for the second out and now there is a second spring...with that big ole' housing again! I should reach China by lunchtime!!

I'll just keep digging!

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Re: SA PTO Seal removal

Postby artc » Wed Apr 06, 2011 12:05 pm

you need to remove the pto gear, remove the shaft from the housing, and then it will come out. its just as John *.?-!.* cub owner said. once you remove doth sections of the seal, you can fold the shell inward with a punch or a screwdriver. fold it in 3 places and remove it.
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Dale Finch
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Posts: 2189
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '55 Cub "Bertha"
'55 Cub "Ben"
'55 Cub "Bailey"
'56 Cub "Boris"
'48 Super A "Bubba"
Circle of Safety: Y
Location: NC, Chapel Hill

Re: SA PTO Seal removal

Postby Dale Finch » Wed Apr 06, 2011 8:08 pm

Thanks ARTC...tomorrow's project (maybe!). I needed to get away from it for a bit, so went out to the "donor" SA and stole its left final drive! I'll either start rebuilding that so it can be swapped with the previously repaired one, or maybe I'll tackle the PTO again. I WILL try removing the gear and shaft. Thanks...

Dale #2


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