Removing shower handle

I'm trying to swap out an American Standard one piece shower valve handle and it seems the set screw is not there. Any ideas or tricks in removing it. Thanks!

Removing three -shower fixtures is relatively simple. The tools that you will need are basic hand tools. Once you have removed the first handle, the other two handles will come off exactly the same way as the first one did. You should be able to remove all three handles in less than 15 minutes.

-Remove the indicator caps. There is a plastic cap in the center of each fixture or handle. The indicators will be C for cold, H for hot and an arrow that indicates direction for either tub or shower function. Use a flathead screwdriver to pry under the edge of the cap. The caps will pop out. They are only held in place by metal retainer clips.
-Use your Philips head screwdriver to remove the screws from the center of the handles. The screws hold the handles to the valves. Pull out on the handles, and they will slide off. Behind each handle is a metal escutcheon ring. Twist the rings counterclockwise to remove them.
-Remove the metal cover plates. Behind the escutcheon ring is a cover plate. These are usually held on by screws. Use your Philips head screwdriver to remove the screws from the cover plates. Take the cover plates off.
-Use a very small screwdriver or an Allen wrench to remove the handles if your fixtures have set screws on the underneath side of the handle much like a towel bar. Some newer fixtures will not have indicator caps on them and, therefore, will not have a screw securing the handle to the valve. The escutcheon rings and the cover plates will come off the same as indicated in Step Three.

I guess I wasn't being clear. This is a single handle. It did have a set screw but not now from what I can see. It must just pressed on in some way.

Thanks for the help.

Yea move the handle around until you see it.
If its the one I'm thinking of about 1/2 on covers it...

So, you have to turn the water on partly to access the set screw?

thanks again

Yep... Once you turn it on the screw should become visible. For some reason I think you might need a screwdriver and not an allen wrench...

WHICH American Standard single handle are you trying to replace? If it is the old "T" shaped push/pull, removing it can be a daunting task.