Need to replace the oil seal on my shredder gear box- How do I find one? - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information
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Old 09-20-2008, 09:05 PM   post #1 of 18
bdoss
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Help Need to replace the oil seal on my shredder gear box- How do I find one?

My shredder's gear box started to leak oil (bad) thru the bottom seal - Took it apart today and found a wire had been warpped around the shaft and part of it slipped between the seal and the shaft- Din't cut the seal just opened a path for the gear oil to pour out.

Cleaned it up and reinstalled - The seal is holding pretty well , but but I'd like to get another one-

The shredder was purchased with the tractor (44 2N) and has been painted so thick I can't find anything to tell me the brand - it's pretty standard (5ft) and I seen a lot that look like it

The only markings are on the rear of the gear box AO(or-Q?)MO R-45-312

The bottom plate (which encloses the seal) has part number - AR40 314 (I think- reinstalled it before I wrote the part number down and the pic I have is blurred).

How can I find out what I've got?
Most important--Where can I get the part (oil seal)
how do I press the old one out?


Thanks for any input....
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Old 09-20-2008, 09:06 PM   post #2 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

Pics of the shredder
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Old 09-20-2008, 09:11 PM   post #3 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

Just take that part with you to a bearing supply place and they will caliper the three dimensions and match it.
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Old 09-20-2008, 09:21 PM   post #4 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

Thanks, LLigetfa,
Thanks for the prompt reply.
Unfortunatly the nearest one is 75 miles away and I don't think I could remove the old seal without destroying it - which is fine IF I have a new one on hand first..
I'm hoping someone chimes in and says it is a standard part number I can order over the web
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Old 09-20-2008, 09:58 PM   post #5 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

Post a close up detailed picture of the gearbox and someone will ID it and go from there.
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Old 09-21-2008, 08:53 AM   post #6 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

requested pics
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Old 09-21-2008, 08:54 AM   post #7 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

more pics
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Old 09-21-2008, 08:59 AM   post #8 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

even more
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Old 09-21-2008, 09:01 AM   post #9 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

and lastly
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Old 09-21-2008, 09:11 AM   post #10 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

Ther should be (or MAY be) a number stamped into the seal's outer steel ring or on the rubber seal itself,along with a brand name like "Chicaco-Rawhide","National",etc..look it over closely before attempting to remove it,for many times the I.D. numbers get destroyed during removal!..

You can probably pop that seal out with a screwdriver ot brake spoon ,used like a lever,don't hammer it out from behind unless it refuses to pop out,that way it leaves the part numbers intact in most cases,and lets you match it up to a new seal too..some places can supply seals just by giving them the measurements off the shaft it seals,and the housing O.D. and the width,if there is no number on it to go by..

Robert
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Old 09-21-2008, 11:08 PM   post #11 of 18
bdoss
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

Thanks, guys.

It's not leaking so much I have to change it now-- Hopefully will get another couple of years with it as is.. If it get's too bad- I'll try to remove it (whole) and see if I can find a bearing supply company that can help me..
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Old 10-05-2008, 10:03 AM   post #12 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

my gear box says agmo R-45-312 on the casting and i just got areplacement seal number national seals number 473517 this is the lower seal and the upper seal number is 471192 My parts came from the local Massey Ferguson dealer. Hope this helps!
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Old 10-05-2008, 10:19 AM   post #13 of 18
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dzemcik..

Thanks for the heads up!!

Enjoy all of the many Forums on MTF!!
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Old 10-05-2008, 08:03 PM   post #14 of 18
bdoss
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

Thanks, dzemcik..

Welcome to MTF - You just added to my list of the best guys on the web!!

I'll check them out -- Getting tired of putting a pan under the shedder to catch the leaking oil!!!
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Old 10-06-2008, 10:50 AM   post #15 of 18
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Default Re: Need to replace the oil seal on my shredder gear box- How do I find one?

That looks very similar to one on the topper I use to cut mates field - next time I go I will get a close up picture - the oil filler hole is in same place and blades and plate look same



Tractor is Ford 1720 - taken bucket off front as he has a digger (back hoe )

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