Sort of like describing how to rewire a motor without mentioning to unplug the motor first. You'd think it's common sense to unplug the thing before working on it but there's always someone out there that doesn't know any better. The person whacking on a shotgun shell with a hammer is about the same as the guy/ gal working on a motor with it plugged in. The dowel idea is probably better most people, though I'll give the shotshell a try.
I've been lucky with the replacement handwheels fitting the shafts, I have problems with not enough room for the washer. Guess I 'll have to grind or mill the wheel down, not how I care to spend my time. Oh well.
Jon