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PTO shaft oil seal JD 720

C

chas036

Member
I think I have a leaky rear oil seal where my pto shaft enters the pump on my power clutch housing on my 720D. I replaced this seal last year, and it looked like it was working because my pto shaft would turn off without a problem.

THis year when I started it up after sitting for 6 months, I saw the shaft would not stop turning. So when I drained it , there was about a quart of oil too much. I must have not put the seal in correctly or it was the wrong type.

I can't remember where I bought it, but when I look today for the part number AA5247, it doesn't come up. Does anyone have an idea where I can get this seal or if there is a good quality substitute? Also is there a special procedure for installing them?
 
Use two AR1335R seals back-to-back, garter springs facing out. Put a little grease between the lips.

<img src = "http://oi65.tinypic.com/10ifhpk.jpg">
 
(quoted from post at 21:15:15 08/17/18) Use two AR1335R seals back-to-back, garter springs facing out. Put a little grease between the lips.

Is there a special tool or method used to install them so the go in evenly?
Click to expand...
 
NOT sure what tool (if any) was spec'ed in the old shop manuals, or where you'd find one nowadays, IF there IS such a thing.

If you look on the 'net, there's lots of reasonably-priced generic sets, but it would be luck if one was an exact fit.

I am fortunate to have a lather, and have made MANY seal, bearing, and bushing drivers for special jobs such as this.

Got a friend with a lathe?
 
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