D Rear Axel Oil Seal

Gary Spencer · Feb 14, 2017

JD D S/N 117754
Have removed the quill and axel, not sure what real axel oil seal is or where to locate. When I removed the exising quill and axel one side had three felts inside the quill the other side had none.
Parts manual has two parts listed
9A - Part AD1260R
9B - Part AD2836R
Any help of what I need would be much appreciated.

Mike M · Feb 14, 2017

Never been that far into a D ? But a guy brought me a brake housing for one once. JD did not sell the seal anymore. Must of been custom made as when sized up no manufacture had one the right size. So I matched up the shaft size and then machined a sleeve for the housing so a normal oil seal would fit. So I'd measure up your shaft and housing and look for a matching seal. If none are made then you may have to do some machining.

Bob · Feb 14, 2017

My GUESS would be that seal 9A would go with axle shaft 1A and seal 9B would go with axle shaft 1B.

Bobl1958 · Feb 14, 2017

According to your serial number, you would need part #9B.

Gary Spencer · Feb 14, 2017

Where can these be purchased?

WeirdDeere · Feb 15, 2017

Going by your serial number it looks like you'd need 9A, AD1260R. I put that into a seal cross reference website and it came out as SKF seal #37532. You should be able to find a source for one, probably even at an auto parts store

I used this website:
http://www2.chicago-rawhide.com/popup_parts_lookup_457012.htm

This axle seal is located on the INSIDE of the quill. You'll have to get the axle out to see it. I've done it, not exactly a fun job but not horrible. You'll want to replace the felts on the outside of the axle housings while you're in there that deep. The felts don't really provide an oil seal, but they do keep the dust and dirt out of your bearings. And check those bearings out since you're making the plunge.

Brandon

Gary Spencer · Feb 15, 2017

Have removed the axel so question would be location of the seal. I'm guessing the axel bearing cup will need to be removed (how is the best way, drive out from the other end?) then the snap ring. Then the new oil seal could be installed (is correct orientation of the oil seal with the exposed spring towards the wheel?)
Appears that previously a felt axel seal was used, was that normal (see pictures of felts that were in the quill).

WeirdDeere · Feb 16, 2017

It's hard to tell in your pictures where the seal is. I worked on a later D and the seal is on the inside of the quill, but outside of the inner bearing. There is an obvious machined area where the seal sits.

The picture I attached shows where the seal was, I have it removed in the photo. I did not need to pull the bearing to replace the seal.

Brandon

Gary Spencer · Feb 16, 2017

Some differences in the two models.
Must be variations that the parts manual isn't clear on identifying. My inner bearing cup pushes against a snap ring. The manual calls out the oil seal but the oil seal retainer nor does not apply to my serial number.
My thinking now is to see if the part 9B (AD2836R) which is listed as a Seal, Oil and Dust Rear Axel Bearing is what I need, it is by serial number and it's threaded to go onto the axel my question is does it replace the axel nut? My axel nut 11A (D89R) provides a place for a felt dust seal.
Regardless, I simply don't see where the axel oil seal would go inside the quill, appears to me my bearing cup would have to be removed to install the seal.

WeirdDeere · Feb 17, 2017

OK I've been studying the manuals and scratching my head some more. I wish I'd had an earlier D apart to confirm my thoughts!

I think the oil seal is inside #9B. If I'm reading and interpreting things right, both the felt and the oil seal are located in that part as an assembly.

Take a look and tell me what you see.

The big clue was in my operator manual which says "[the oil] then flows through the inner bearing to the outer bearing"

If there was a seal in the location like my later D that couldn't happen

Hope this was SOME help at all.

Brandon

Gary Spencer · Feb 17, 2017

I agree with you. I have located that part and will have next week. I'm curious of its location, or if it replaces the rear axle nut or is in addition to
the nut. I'm going to read thru my operator manual as well, thanks

Gary Spencer · Feb 17, 2017

From the service manual.
Rear axel lubrication is by means of paddles on sprockets. The oil is carried up and then flows through inner bearing to outer bearing. In winter operation, the transmission oil should be thinned so it will flow and carry up with sprockets and chains. The grease cup on the outside and serves a two-fold purpose; keeps the oil from leaking out in summer by forming a seal of grease and in the winter it serves to lubricate bearing when oil is stiff.

Gary Spencer · Feb 24, 2017

Well I have the complete rear axle oil and dust seal combination part. I will remove the felt retainer cup and install into the end of the quill. My serial number begins with 117. There is no inner oil seal. According to the manual it was intended for the oil to flow from the inner bearing to the outer bearing. The grease cup was two fold, one to for a grease seal to prevent oil leaking out in the warmer summer months and provide additional lubrication in the winter months with the oil was stiffer. I have included KEY Numbers and part Numbers from the parts manual pages 48, 49, and 50.

D Rear Axel Oil Seal

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