I got my newly drilled arbor press back yesterday, and it didn’t take me long to perform my first screw-up. Learn it the hard way, that’s my motto.
I was performing what I thought was a pretty easy operation; pressing a grooved wheel on to a drive axle that already had a wheel on the other end, and was mounted in a motor frame. The replacement wheel resisted and would not slide over the axle, so I used MORE FORCE! End result was I shoved the axle out through the other wheel broke the hub. This grooved wheel was original to this engine (2024 C&O), and as far as I know had never been removed.
What did I do wrong, and what can I do next time to avoid this scenario? And is there even a remote chance this wheel is still usable?
What I don’t get is why the recess in the wheel mounting cup? Looks like if the cup had a flat bottom, this might not have happened.
Why was the replacement wheel so resistant? It’s a used wheel and already had some spline marks inside the hub. Is it possible that the axle was too large for the wheel?
Worth noting - the replacement wheel, upon a close inspection, almost appears to have a metal liner on the inside of the hole. Did Lionel ever do that?