'46 Farmall M Brakes Installation??

Tis

Disconnect the brake return spring. Then disconnect the brake rod yoke pin from the brake band lever arm.
Remove the 5 hex head bolts that holds the cover on. If your lucky, it will slide off. Inspect the band and check to see if you have 90W leaking around the drum and hollar back.

If you have a stuck cover, we'll have to walk you through that procedure. Brake removal can be a real pain at times.

I have replaced quite a few seals over the last 10 years on several Hs. Have safety glasses handy. Drill two 3/8 inch holes as close as you can into the seal facing towards the outer edge. The drill bit will go about 1 inch then you will notice it will stop against the seal cage casting. Then pound a chisel into the two holes. I then hit the side of the chisel with the hammer using the outer casting as a fulcrum. When the seal starts prying out at the chisel, I use offset plyers and pry it out. It will more than likely come out in pieces. You can stick the two new seals in as far as you want. You will have some extra depth to play with. If the inner part of the drum, where it rotates in the seal is rough, try to set the seals to avoid the roughest portion.

Hope this is somewhat clear!