Rick, it looks like it should be pretty easily adapted to use index plates and a simple indexing pin arm. The crank end can't be seen in the HF picture, but I'd think you can take off the handle and mount a thin plate in front of the dial for attaching the index plate. Then mount the indexing pin arm to the shaft that the handle is normally mounted on.
Like Chuck says, you can use the RT to make the indexing disc(s) themselves. Hole circles are a perfect use for your RT.
The indexing pin arm can be a simple piece of flat bar with a hole in one end to fit the shaft of the RT, and a slot in about half its length on the other end that will hold your pin that fits into the holes on the index plate.
You could make sector arms if your into it.
Originally Posted by RICHARDDV
I need to make some change gears for my old 109 lathe so i will find out.
RichardDV, when I got my 109 it was missing a bunch of gears too. (It seems like most of them are!) I made up seven of them a while back. I didn't really want to pay the going price for certain tooth counts. Some are quite expensive. Anyway, I took pics and put them on one of my web pages if you would like to have a look. (Click on the link at the bottom of this post, and go to the Craftsman page.)
Here's a shot of them, taken before I cut the keyway slots;
Good luck with your gear cutting!