OMG! Yes! This is the kind of diagram I've been looking for!
I was just about to try to e-mail you, actually; glad I checked here again first.
I can now make out the spots where the X-axis bumpers go, but not the Y (can't make it out in the diagram).. does the spring pin take care of this or am I just not seeing the bumpers (seems 'clanky' with just the pin)?
Do you happen to have a link to the full repair manual, btw? If not I'll just look around for it. Many, many thanx!
k-spiff
No! I'm telling you, the bumpers have nothing to do with the pins or shaft or anything! There are no Y-axis bumpers. If you took the actual yoke off the mounting plate, you would see two bumpers on the back of the yoke's body (the big metal box that the handles are connected to!) You would also see two more bumpers on the face of the mounting plate. The two sets of bumpers "bump" into each other, without touching any part of the shaft or spring mechanism! BTW, you'll need to get a set of Torx security wrenches (from
Happ or
Bob Roberts) to open the yoke in order to remove the yoke from the mounting plate, which is the only way to access the bumpers for replacement...
For the Y-axis, there is a big pin that goes thru the y-axis shaft inside the yoke. There is a metal plate with a slot in it that the pin rides between, and this provides the only restriction to y-movement. There are no bumpers for the y, just the x. If you go play a real Star Wars machine, it is a little clanky, but that's the way it is.
Here, this should explain where the bumpers go:

Sorry, I don't have the manual myself. I found those pics on an ebay auction that was selling refurb kits last year.