get a bigger hammer!!! and Im NOT kidding. this came right from my parts guy, Jeff Kane of
ttender.com
hold the locomotive in your lap in a pile of towels for cushioning. take a nail set slightly smaller
than the diameter of axle. place on the axle and wrap it with the hammer. wheels will pop right off.
you will then need to keep pounding the axle thru the body to dislodge the gear. Ive done this and it works everytime.
no wheel puller needed.