Looking up old Shimano parts diagrams
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  1. #1
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    Looking up old Shimano parts diagrams

    I have a dissembled Shimano thumb shifter SL M730. I can't find anywhere a parts diagram showing each internal part so that I can put it back together. Do I need to be a bicycle shop to get this diagram?

  2. #2
    xxl
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    Quote Originally Posted by siclmn View Post
    I have a dissembled Shimano thumb shifter SL M730. I can't find anywhere a parts diagram showing each internal part so that I can put it back together. Do I need to be a bicycle shop to get this diagram?
    I have some old Shimano catalogs from that period in the basement, later today I'll take a look and see if those shifters are shown, and if they are, I'll PM you.
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  3. #3
    'brifter' is f'ing stupid
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    The EV (exploded view) that Shimano provides only shows the shifter unit as complete...as in it doesn't actually show the internals. It's common knowledge that Shimano shifters aren't meant to be taken apart for repair. You're on your own on this one.

    https://si.shimano.com/api/publish/s...M730-0775B.pdf
    #promechaniclife

  4. #4
    xxl
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    Quote Originally Posted by cxwrench View Post
    The EV (exploded view) that Shimano provides only shows the shifter unit as complete...as in it doesn't actually show the internals. It's common knowledge that Shimano shifters aren't meant to be taken apart for repair. You're on your own on this one.

    https://si.shimano.com/api/publish/s...M730-0775B.pdf

    Thanks for posting, saves me a trip to my basement.

    I knew that Shimano "STI" shifters shouldn't be dismantled, but I wasn't sure if thumbshifters would be a problem.

    Perhaps dude meant that he'd disassembled everything but the "lever units." Hope so, for his sake.

    OP, if this isn't the case, Sunrace makes thumbshifters that'll work, and aren't too spendy:

    SunRace | Products
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  5. #5
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    This one says......
    Lever Body Unit.
    Never Attempt to Disassemble.

    https://si.shimano.com/api/publish/s...000-00-ENG.pdf

    I've disassembled a rapid fire lever, but it was only to hose it down with WD40, before lubing, and assembly.
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  6. #6
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    Yes I have taken it completely apart since it was just too hard to use and soaking it in lube didn't help at all. When something does not work I just take it apart to see what is the problem is I can't help myself. Once I took a friends old ship clock apart since it didn't work and after putting it back together it has worked for years now. Sometimes I just end up breaking things too. I like the Sunrace idea.

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