Well, I've just done it. Did both sides this weekend. Massive thank you to VashonFarmer for the write up.
Some comments about it.
- Be exceptionally careful supporting the tractor, especially if it's parked on dirt. It's difficult to make stable, since everything to support is right in the middle of the tractor.
- This was my first time moving loaded tires. Intimidating, but not that bad. Just do it slowly.
- I left the upper roll hoop attached (because of my LED light bar wiring i didn't want to disconnect), and did one side at a time. The upper roll hoop will stay up when one support is missing. The only negative is, i bashed my head on it about 47 times.
- I didn't need to support the axle housing from above. I used a floor jack and a block of wood. It's not that heavy. I could easily lift it up and set it on it's studs, then moved the jack in place for support while i continued.
- On both sides, the brake lever pin was seized in really good. Both sides needed heat and a big hammer to knock them out. I used sand paper and a file to clean it up. I re-used the o-rings as they were in good shape. I liberally greased everything with the thickest grease i could find. It's super smooth now.
- The insides of my brake housing and axle were very clean, even at 1445 hours. However, i think my brake disks were worn, as one side was dragging hard when i bought it. Who knows how long it ran that way. There were heat marks around all of the depressions where the ball bearings ride. I decided that ignorance was bliss and didn't measure anything.
- When re-assembling the brake disks, make sure to align the big holes. The manual mentions that it's important for oil flow.
- I used Permatex Motoseal, because it's what i had on hand. It seemed to work. We'll see if it leaks over time.
- It's tricky to get both the brake housing and the axle housing to drop into their dowel pins. Don't use the bolts to do it. Wiggle things until it drops in. It will, it just takes patience. I mallet helps.
- The brake linkage arm has a specific install direction. It can be installed upside down. If you look at the lever, you'll see what i mean. I didn't notice the difference until i did it wrong.
- I would not want to do this job without a strong impact wrench, a large variety of sockets and extensions, ratcheting wrenches, etc. Also, i used plastic bags and a marker to mark bolts for the different steps. There are a variety of different bolt types, and they are easy to mix up.
I refilled the transmission, adjusted the brakes, and took her for a ride. It's the first time i had two working brakes that don't require pulling the lever back up to release. The brakes work well. I put the tractor on a mild hill, put it in neutral, and checked both sides. They easily lock up and work quite well, and seem to release on their own. I'm so glad this is done.
I must work slow, because I'd guess i have about 15 hours into this job. I did it outside on dirt, in the sun, so it was pretty miserable. Side #2 was much faster than side 1.
Thanks again to VashonFarmer