Originally Posted by Anders
Hi all, does anyone know how the "Tool T 56 P-1217-A" looks like? Or is there any other way to take the outer and inner bearing cup out? And in again?
I must assume we are talking about the bearing race for the inner and outer bearings.
Wash all the grease out first, then wipe the inside dry with a clean rag and set the drum on a solid floor. Look inside the center hole and notice the bearing race closest to the floor has an area that is exposed and is shiny.
Races are pressed in place and they are case hardened.
I use a long mild steel rod on that lip, and hit it down with a decent hammer blow. Then do the opposite side of the same race. Go back and forth until the race 'walks' out.
Some European hubs have an inside slot for tool access.
Every new bearing comes with a new race but I only change them if the old one is bad. A good race should look shiny and smooth. It should fit tightly in the hub. A bad race my be discolored, de-laminated, pitted or loose.
For installation, grease the parts and tap the race back in the hole with a hammer until it stops. Make sure it's down all the way around. I have had hubs with loose races from the factory. After setting the tension with the nut, the wheel will quickly become loose again. So, I turn the wheel as I crank down HARD on that nut until nut motion stops. It's important to spin the wheel as you turn the nut. Then, back the nut off until the bearings are comfy but not loose. - Dave