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  1. #1
    Registered User f.webster's Avatar
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    Default Howard Miller (Hermle 340-020A) Wrench?

    I have a Howard Miller clock that I am repairing. It needs bushing work and so I need to seperate the plates. What has stopped me is the removal of the locking plate and the chime locking cam. They are held in place with what I thought was a hex nut. I have search for a hex wrench to fit and have had no luck. Then I thought it might be a star(?); yet, still no luck.

    Then I was told by a guy in a little hardware store that if it is a Howard Miller Hermle movement it takes a 'special' tool.

    Is this true? If so, where do I get this 'special' tool?

  2. #2

    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: f.webster)

    I think you mean that they are held by socket set screws and you need a hex key, commonly called an Allen wrench. I don't know the size off hand, but they are metric and only a metric wrench will fit.

    If I have misunderstood completely, please accept my apologies and post a picture of what you are trying to remove.

    Joe

  3. #3
    Registered User f.webster's Avatar
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    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: Joe D.)

    Joe,

    You are right. I do mean allen wrench. I have searched for a metric allen wrench and those that I found were either too big or too small.

    Help!?! Is there a special size?

    Thanks

  4. #4

    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: f.webster)

    Sorry, I don't have one to check the size right now, but I don't think it's anything special. Hopefully someone else will chime in.

    Joe

  5. #5

    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: Joe D.)

    Probably unlikely that Hermle would be manufacturing off-size Allen screws. Something normal in either metric or American ought to fit.

    Unless it's Torx, rather than Allen.

    bangster
    1. Check out the REPAIR HINTS & HOW-TO's forum! Click Here.

  6. #6

    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: bangster)

    It is a 1.3mm size. We have the allen wrench for it. Also fits the hermle moon gears. $1 each flate rate mailing of $2.

  7. #7

    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: MARK A. BUTTERWORTH)

    Mark's number is 563-263-6759

  8. #8
    Registered User Scottie-TX's Avatar
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    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: shutterbug)

    I know it's not good to recommend the wrong tool for the job and I would buy a metric assortment but:
    I have had success removing cap screws by grasping them with a pair of pliers or inserting a tight fitting screwdriver into the hex.
    Works in a pinch.

  9. #9
    Registered user. Jay Fortner's Avatar
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    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: Scottie-TX)

    Industrial suppliers sell small allen screwdrivers in sets both metric and SAE. I've got one of each and wouldn't part with them for love nor money.
    -> posts merged by system <-
    Quote Originally Posted by Scottie-TX View Post
    I know it's not good to recommend the wrong tool for the job and I would buy a metric assortment but:
    I have had success removing cap screws by grasping them with a pair of pliers or inserting a tight fitting screwdriver into the hex.
    Works in a pinch.
    Hey man, I think your latest avatar cat is allergic to himself.
    Wise men speak when they've got something to say whereas fools speak just to say something.

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  10. #10
    Registered User f.webster's Avatar
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    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: Jay Fortner)

    Thanks Mark for the information.

    1.3mm allen wrench is the right tool.

  11. #11
    Registered User Scottie-TX's Avatar
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    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: f.webster)

    Yeah; Self inflicted - cat scratch fever.

  12. #12

    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: Scottie-TX)

    For what it's worth: This same allen wrench is also used and included with a Bergeon reamer adapter for an electric screwdriver, part #22911, Timesavers Catalogue #36, page 111, which I have, AND have lost a time or two much to my chagrin. Good to know you have some Mark. I'll be calling you soon!................doc

    Post Script: It is also used on part #'s 22910 and 22912 in the Timesavers catalogue.
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  13. #13

    Default Re: Howard Miller (Hermle 340-020A) Wrench? (RE: doc_fields)

    Quote Originally Posted by doc_fields View Post
    For what it's worth: This same allen wrench is also used and included with a Bergeon reamer adapter for an electric screwdriver, part #22911, Timesavers Catalogue #36, page 111, which I have, AND have lost a time or two much to my chagrin. Good to know you have some Mark. I'll be calling you soon!................doc
    Mine came with a screw Maybe it's been modified recently.

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