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  1. #1
    ٩๏̯͡๏)۶ Luke52's Avatar
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    Mechanical Disc Brake problem.

    A quick search showed nothing of relevance.

    Yesterday I snapped my front brake cable on my Shimano BR-465 disc brakes.

    Pic of the brakes...It's the rear brake shown, but it's exactly the same as far as I can tell.



    I got a new cable, and replaced the broken one, but just one issue: I can't seem to get full braking power back.

    I looked on the Parktools website, and I can't find anything which will help with this issue.

    Any help on adjusting mechanical discs will be greatly appreciated.

    Thanks,
    Luke.

  2. #2
    Senior member Dan Burkhart's Avatar
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    Quote Originally Posted by Luke52 View Post
    A quick search showed nothing of relevance.

    Yesterday I snapped my front brake cable on my Shimano BR-465 disc brakes.

    Pic of the brakes...It's the rear brake shown, but it's exactly the same as far as I can tell.



    I got a new cable, and replaced the broken one, but just one issue: I can't seem to get full braking power back.

    I looked on the Parktools website, and I can't find anything which will help with this issue.

    Any help on adjusting mechanical discs will be greatly appreciated.

    Thanks,
    Luke.
    That brake has both inner and outer pad adjustment capability and that is probably what is needed. Use a hex wrench in the socket heads that are in the centre of the caliper. Set the inner pad as close to the rotor as you can without rubbing, then set your outer pad to the desired lever feel.
    Don't force the adjustment screws. If it is within adjustment range,they should turn quite easily. You will feel incrimental clicks.
    The last person to set it up may have adjusted it by pulling cable through the pinch bolt and that's why it feels different now.
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  3. #3
    ٩๏̯͡๏)۶ Luke52's Avatar
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    Quote Originally Posted by Dan Burkhart View Post
    That brake has both inner and outer pad adjustment capability and that is probably what is needed. Use a hex wrench in the socket heads that are in the centre of the caliper. Set the inner pad as close to the rotor as you can without rubbing, then set your outer pad to the desired lever feel.
    Don't force the adjustment screws. If it is within adjustment range,they should turn quite easily. You will feel incrimental clicks.
    The last person to set it up may have adjusted it by pulling cable through the pinch bolt and that's why it feels different now.
    I have tried both pulling the cable through the anchor bolt, AND adjusting the pad position..

    Even though I'm pulling the brake lever as hard as I can, the braking power is very weak.

    Thanks for the input though

  4. #4
    tilt head to right Alpha52's Avatar
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    This is the Shimano tech site
    http://techdocs.shimano.com/techdocs/index.jsp

    This is the non-series page where your 465s can be found.
    http://techdocs.shimano.com/techdocs/blevel.jsp?JSESSIONID=LcjLJ3X5962LhytwyhkkRhgr2Yzhb2z37wffvndq2vqbxWJcPGQG!1559361307&ASSORTMENT%3C% 3East_id=1408474395181679&FOLDER%3C%3Efolder_id=2534374302051856&bmUID=1222435592372

    This is specific to the BR-465 brakes
    http://techdocs.shimano.com/media/te...9830604334.pdf

    Print this out as a PDF. It explains installation and troubleshooting. This site has been invaluable to me for all things Shimano...

    Good Luck.

  5. #5
    Senior Member
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    Logically, it worked before, what changed? The cable broke. Do not adjust, then you have two problems. Fix the cable first.
    You are not done. Disconnect the cable, lift up on the "arm" while slowly turning the wheel until it just drags, back off, then tighten the cable. I find that with new cables, one has one good hard squeeze in adjusting the cable to "stretch" or seat it. Once done, you must add clearance if you disconnect the cable. You have already done so, so leave a little room. However, your brake is what our "kids" call soft. Lifting the arm will eliminate this. Best of luck.

  6. #6
    ٩๏̯͡๏)۶ Luke52's Avatar
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    Quote Originally Posted by j mendivil View Post
    Logically, it worked before, what changed? The cable broke. Do not adjust, then you have two problems. Fix the cable first.
    You are not done. Disconnect the cable, lift up on the "arm" while slowly turning the wheel until it just drags, back off, then tighten the cable. I find that with new cables, one has one good hard squeeze in adjusting the cable to "stretch" or seat it. Once done, you must add clearance if you disconnect the cable. You have already done so, so leave a little room. However, your brake is what our "kids" call soft. Lifting the arm will eliminate this. Best of luck.
    That bit of info is what helped me the most

    Thanks for that mate, much appreciated.

    Brakes are working as good, if not better than, before

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