American Standard shower handles: removal and ID

Discussion in 'Shower & bathtub Forum & Blog' started by boblothrope, Jun 11, 2011.

  1. boblothrope

    boblothrope New Member

    Messages:
    7
    Location:
    Massachusetts
    I'd like to remove these two American Standard shower handles, particularly the one with the starbust design, so I can clean out or replace the cartridge.

    I'm having trouble removing the set screw. It looks like it takes a slotted screwdriver, but I tried several, and they don't feel like they're engaging the screw at all. Anyone know what size screwdriver or allen key I should be using?

    Also, if you happen to know the name of this trim style and the model of cartridge, it would be helpful. Though I do have a great plumbing supply store that can identify the old cartridge if I bring it in.

    Thanks!

    upstairsShowerHandleSmall.JPG downstairsShowerHandleSmall.JPG
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,488
    Location:
    Cave Creek, Arizona
    The plate looks like a Ceramix, but the handles look like the Ultramix+.
  3. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    Here is the trim sheet showing ceramix , and others , which use the R120 series rough valve. http://www.americanstandard-us.com/assets/documents/amstd/parts/Parts_2062.pdf. Here is the r120 http://www.americanstandard-us.com/assets/documents/amstd/parts/Parts_2211.pdf



    Ultramix I think is older. The one on the left could also be Aquarian, but since your showers are probably the same age, is is probably Ultramix http://www.americanstandard-us.com/assets/documents/amstd/parts/Parts_2789.pdf or http://www.americanstandard-us.com/assets/documents/amstd/parts/Parts_2772.pdf


    The valve parts are not the same for the two models I have shown. You won't know for sure what animal you have until you get the trims off. Anyway, the parts are readily available from a good supplier.
  4. boblothrope

    boblothrope New Member

    Messages:
    7
    Location:
    Massachusetts
    Thanks. I think they are models which take a R120 valve. The handle goes up and down for volume, and rotates for temperature.

    Any tips for loosening the set screw, like what size screwdriver to use?
  5. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    Unless someone previoulsy replaced it , the screw should be an allen ( HEX) set screw. you just have to get a good look at it with a flashlight and mirror, and pull the right tool out of your tool box. Spraying a little white vinegar onto it can help with mineral buildups,
  6. boblothrope

    boblothrope New Member

    Messages:
    7
    Location:
    Massachusetts
    I recently fixed a relative's wobbly American Standard shower handle of a similar vintage. After a big wet struggle with various allen keys (the shower was running, since it was an apartment and we didn't have access to the shutoffs), I got underneath and looked, and the set screw took a slotted screwdriver.

    So I tried that on mine (the second picture) when I got home, without success. I looked underneath, and that one took an allen key!

    The detail you've all been waiting for: it was the 3/32" size allen key. (Nowhere could I find this information on the Internet.)

    So now I'm pretty sure that the one in the first picture needs a long thin slotted screwdriver, since that's what it looked like, and either type of screw is a possibility.

    I took out the cartridge by removing the 3 screws. It didn't look clogged. When I put it back, it seemed a little noisier. Would soaking it in vinegar be good for it, and possibly reduce the noise?

    If there was a second cartridge for pressure-balancing which remained in the valve body, I couldn't figure out how to remove it.

    I wasn't sure how tight the 3 screws should be. If I tightened them too much, the handle was hard to move, but I really don't want it to leak inside the wall. Any guidelines?
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