I have a leaky right side axle seal. I know its coming from the bottom ring gear and not the tranny. Tranny level doesnt change but the rear ring pan on the lower unit goes half empty after only a few weeks. Im filling it as the book says, up to the fill level. Lots of oil coming through my brakes. I have all the manuals but they are very limited in instructing me how to put this seal on. Can you guys tell me what to do? I have the tire off and bearing cover off. I took out the c-clip and can get to the bearing. Does the bearing just pull out? It doesnt want to. The axle will move out about 1/4 inch, is this normal? Is the bearing pressed on? If it is how do I get the axle out. I was hoping the bearing would just come out easy then I would unbolt the whole lower unit from the axle houseing and take off the lower unit with the axle in place. I dont know how the bearing comes out.
Any help is appreciated.
Thanks


RJ

It's not quite clear if you're talking about the axle (the shaft the wheel is on) or the differential shaft (the one that comes from the tranny and has the brake drum on it). I'm suspecting the latter. But clarify that and we'll be better able to help you out. There' a lot of difference between the two in how to go about it.

Im not leaking oil out of the lower wheel axle, but the upper axle that comes out of the tranny. Oil is coming out of my brake drum area. The 2 places it could be is tranny oil, or the ring gear is bringing up oil on my final drive. I know thats where its from because tranny fluid level doesnt change, Oil leve in the lower final drive pan is only 1/2 full after I just filled it. There are 2 seals on this upper axle tranny shaft "differential shaft" One close to the tranny end and one on the brake end. Im sure I need to replace the one on the brake end of the differential shaft. I have every book I can get on the A, service man. parts book, operators book, and they arnt much help on this job.

Thanks
RJV

If you've got the I&T, check out Par. 462 and Fig IH450.

Basically, remove the right wheel from the tractor. Plan on a way to support the final drive without dinging up the pan. Disconnect the brake pedal from the rod. Unbolt the shaft housing from the side of the transmission, and pull it, together with the final drive, away from the tractor. Next remove the shaft housing from the final. This will expose the brake drum, which has to be removed. There's a set screw (usually a square-head) holding it in place. Once free, slip it off over the end. All that's left is to remove the cap on the outside end off the shaft. A light bump on the inner end of the shaft should start it out. Once it is out, you can deal with both seals, the one on the inner face of the final, and the one where the shaft passes through the side of the tranny. You'll probably also want to have a new gasket for the cap on the outer end.

Only other thing that comes to mind is what to do with the seat platform in all of this. The book say to leave it bolted to the shaft housing. That seems to me to make a lot of fiddling, seat support bolts, removing the shield under the pedals and the pedal return springs. I've seen photos of folks doing the job by taking the seat pan off the springs and then just unbolting the rear of the seat platform from the shaft housing. Doing it that way leaves the seat supports in place but out of the way.

I think you are talking about the pinion shaft at the top of the final drive housing. To remove this shaft, you have to remove the final drive assembly from the tractor. I think the bearing would come out after the small cover over the end of the shaft is off, but there is no way to get hold of the bearing to remove it. That would do no good as far as fixing the seal problem. To do that, you must remove the final drive from the tractor, then remove the brake drum from the shaft. The brake drum is held in place with a set screw and a woodruff key. Sometimes the drums are tight on there and hard to get off. You have to rig a puller to get the drum off. Don't try to drive the shaft out, as the woodruff key will prevent the shaft from going through the bearing. Once the drum, and key are off, the shaft with the bearing will come out through the hole that has the cover with 4 bolts. While you have this off, you should also replace the seal on the transmission side as well and you may want to put new brake bands if the old ones are worn and/or oil soaked. Be careful when removing the final drives. Do one side of the tractor at a time and make sure everything is blocked up securely. These tractors can be unstable due to the offset design. When the wheels and final drives are removed, they can easily tip over if not properly cribbed up.

The others are correct. Go to the parts section of www.caseih.com and look at the diagrams. My Super A is currently totally disassembled, from the engine to the PTO, both final drives are currently disassembled. You need the I&T manual, if you have a good "farm store" nearby, they might have it. One thing to remember, all shafts, etc are driven out from the INNER side of the housings. Check all bearings for snap rings, some have them some don't, look closely, or you might miss them.

guys, thanks for all the help. You painted a better picture in my head. Im tackleing it this weekend. If I have to take off the whole right side of the tranny, I will replace the tranny seal also, and Ill inspect the brakes. If I get in any more trouble, Ill let you come over to my house and help me on the project. Sound good??

Ill keep you posted.


Ron

Got the whole right side off the tranny without tipping the tractor! I did leave the floor pan on the tractor. Tip: The lip of the floor pan will want to catch the axle houseing, that hung me up for a few minutes before I figured it out. Then it popped out like a baby boy. The only other thing that took much more time than should have was the brake rod. The darn pin was rusted frozen and I spent 45minutes getting the darned thing out! The littlest things sometimes are the buggers. Tomorrow I will take apart the houseing and brakes and hopefully install the seals. Thanks again for walking me through this.
Ron

Yeah, that's one of the beauties of workin' on the old stuff. The big stuff goes slick as snot, once ya get all the nigglin' done on the little stuff.

This thread is droppin' down kinda low. Feel free to start a new thread if ya need any help finishin' it up.

Thanks for the update!