2520 Front end seal. Need help please

[BlackRaptor]

Hey guys,
Before i can upgrade the 2520 I need to get this front end seal fixed.
I'm having a hard time figuring out which seal is it that went out.
Tonight I cleaned the hub and everything around it and hoping by morning i can find a wet spot where the fluid is leaking out. But i was wondering if any of you knew if there is a common seal that goes out around the front hub and if so what did I do wrong to cause it to fail on a tractor with only 200 hours that's used 90% of the time as a lawn mower. I will admit i have loaded down my bucket good a hand full of times. could this be the cause?
I've attached pictures of the area that's leaking. any help would be great. Also any advice this taking apart this area would be great also. from the break down there are a lot of little parts inside there.
Tractor is kept in-doors and I maintain it by the book so I'm a little surprised it's making puddles already on me.
Thanks guys.
Chad.

 

[bz1]

The head mechanic at my dealer told me that the front wheel seal is the only thing they regularly replace on the 250 and like machines. I owned a 4100 until it had 700 hours on it with no problems. I also had a 2520 with 400 hours and no problems. I did not have a loader on either machine. I'm not sure how long they generally last. Go to the online JD parts pages and the exploded views should show you how this gear box is built. That should help you figure out where the seals are.

 

[mjncad]

I suggest you get the tech manual on CD from https://techpubs.deere.com/ as they are usually 1/2 the cost of the paper manual and you can print out what you need and replace damaged greasy pages anytime.

The JD parts web site is great for ordering parts; but it won't give you disassemble/reassembly instructions that you may need.

I gather the tractor is out of warranty?

By chance was the tractor in 4x4 and tight turns being made on pavement? I know sometimes I space out taking mine out of 4x4 since there is no dash light to remind me.

 

[BlackRaptor]

Thanks guys.
I posted two more pictures. Which seals are the wheel seals? I'm just making sure i got the right ones. even though these questions don't make me sound like it i'm pretty mechanical and can rebuild about anything. Just don't want to rip into it any deeps than i have to.
The two seals I purchased are 7 and 22. (See Picture)
Are these the two that the JD mechanic told you go out?

I have turned tight on tar once or twice but try to be VERY careful not to be on tar in 4X4.

Thanks again guys for all the help in my little project here

 

[Mechanos]

Thanks guys.
I posted two more pictures. Which seals are the wheel seals? I'm just making sure i got the right ones. even though these questions don't make me sound like it i'm pretty mechanical and can rebuild about anything. Just don't want to rip into it any deeps than i have to.
The two seals I purchased are 7 and 22. (See Picture)
Are these the two that the JD mechanic told you go out?

I have turned tight on tar once or twice but try to be VERY careful not to be on tar in 4X4.

Thanks again guys for all the help in my little project here

Nope... the ones you bought are the spindle shaft seals. You're not looking at the right page in the part manual to see the "wheel seals". Looking the MFWD Final Drive section for the seal and/or wear sleeve for the stub shaft.

 

[BlackRaptor]

Dang I was wondering if those where right didn't seem right when i was at the dealer hmmm.
I attached a break down of the hub wheel area.

2 and 7 ?
Thanks help helping me with all my stupid question.

 

[Mechanos]

Yes... you will need the gasket, #7, because you will need to take the cover off the housing to remove the snap ring from the stub shaft. Then remove the stub shaft from the cover/ring gear. R&R the seal and put it all back together. Very easy to do.

I see by that breakdown that JD has "cheapened" the design. It's basically the same as my 955, except that the 955 has a replaceable oil seal wear sleeve on the stub shaft. On the design you're working on, you'd have to either replace the stub or track down a Speedi-sleeve to repair the stub shaft if the oil seal surface becomes worn or grooved.

 

[goodbyeNJ]

Yep, number 2 and number 7. Mine went on left side 2 days shy of 24 months, covered by warranty. Same one again 3 1/2 months later - no warranty, repairs only guaranteed 90 days. Service Manager had no explanation for failures.

 

[BlackRaptor]

Thanks guys,
I will go to Deere tomorrow and return and buy the correct seals.
So glad it's that seal not the one i thought it was. that would have been much more ugly.
This looks simple.

Thanks again my friends!

 

[Mechanos]

Spindle shafts seals aren't bad either. I just replaced them on my 955 a week ago. Very similar design. Took about an hour per side.