4620 JD pto seal

Mattcorrell · Apr 6, 2015

I've taken loose the 8 bolts that hold the quill on. It will come out about an inch then stops. How do I get it off so I can replace the seal? Thanks

Tx Jim · Apr 7, 2015

I've never witnessed a seal replaced on a 4620 pto but it appears one must pry housing from pto shaft brg. I think the 2 dowel pins will make housing difficult to get free from trans case.

Mattcorrell · Apr 7, 2015

(quoted from post at 03:20:10 04/07/15) I've never witnessed a seal replaced on a 4620 pto but it appears one must pry housing from pto shaft brg. I think the 2 dowel pins will make housing difficult to get free from trans case.

Do you think the bearing (16) will slide off the pto shaft? I know the bearing is held in the outside (20) by the snap ring (15). I've got the housing free from the transfer case but now it's hung up on the shaft.

Thanks for the reply!!

Tx Jim · Apr 7, 2015

I think snap ring(parts key 7) holds brg on shaft. Are you sure snap ring(parts key 15) holds brg in housing(parts key 20) or does it keep brg from going to deep in trans case?

Mattcorrell · Apr 7, 2015

(quoted from post at 06:21:50 04/07/15)
I think snap ring(parts key 7) holds brg on shaft. Are you sure snap ring(parts key 15) holds brg in housing(parts key 20) or does it keep brg from going to deep in trans case?

I can feel the snap ring 15 against the Bering 16. It shaft and housing will pull away from the trans case about 3/4 inch and I can stick a finger on and feel the snap ring but I don't think I could ever get it undone or put back in like that.

Tx Jim · Apr 7, 2015

If that's the case then I'm going to guess that you're going to have to invest in a JD tech manual.

fdt860 · Apr 24, 2016

Does this ever get answered?

I am running into the same problem. Previous owner told me that the PTO was leaking and that fixing it required entire trans dis-assembly. I did not believed it, but I tried to remove it and ran into same problem as above.

Then after more reading, i found that service manual said to remove the front PTO quill, and pull the PTO gear/push the PTO shaft out with the puller bolt provided.
Then the shaft comes out easy.

I have a hard time to understand how you remove that same shaft on 4630-4640? Someone knows? Maybe you have to make a split and that is why the dealer taught that 4620 were the same?

Seems that JD never expected this seal to go bad.

4620 JD pto seal

Mattcorrell

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Tx Jim

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Mattcorrell

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Mattcorrell

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Tx Jim

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fdt860

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