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  1. #1
    Master Of The Obvious 10,000+ Posts
    bizhub 558 buzzing near the bridge unit.

    blackcat4866's Avatar
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    bizhub 558 buzzing near the bridge unit.

    It was simple to key the bridge cover and see that the noise was coming from the exit section, not the bridge.

    Manually turning the gears from the exit drive, I can catch the exit timing belt jumping ... so I pulled out the exit section, and it looks like this:

    bizhub_558_buzzing_noise1.jpg

    The pulley driven by that timing belt seems to have ovalled out the frame, where the shaft passes through, loosening up the belt. The other bores seem to be intact, not-worn, so I thought maybe an oil impregnated bronze bushing might do the trick, like this:

    bizhub_558_buzzing_noise2.jpg

    It's nice and quiet now, and if that 6mm bushing ever shows any wear, it's a small matter to swap it out. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  2. #2
    Service Manager 2,500+ Posts
    bizhub 558 buzzing near the bridge unit.

    Synthohol's Avatar
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    Re: bizhub 558 buzzing near the bridge unit.

    your MacGyver skills are on point man, that took my breath away.
    really a work of art.
    We know a thing or two because we've seen a thing or two.

  3. #3
    Service Manager 2,500+ Posts tsbservice's Avatar
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    Re: bizhub 558 buzzing near the bridge unit.

    Quote Originally Posted by Synthohol View Post
    your MacGyver skills are on point man, that took my breath away.
    really a work of art.
    +1. That bushing should be installed at factory line.
    BC mastery is beaten only by his humility.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

  4. #4
    Field Supervisor 500+ Posts kingarthur's Avatar
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    Re: bizhub 558 buzzing near the bridge unit.

    Quote Originally Posted by blackcat4866 View Post
    It was simple to key the bridge cover and see that the noise was coming from the exit section, not the bridge.

    Manually turning the gears from the exit drive, I can catch the exit timing belt jumping ... so I pulled out the exit section, and it looks like this:

    bizhub_558_buzzing_noise1.jpg

    The pulley driven by that timing belt seems to have ovalled out the frame, where the shaft passes through, loosening up the belt. The other bores seem to be intact, not-worn, so I thought maybe an oil impregnated bronze bushing might do the trick, like this:

    bizhub_558_buzzing_noise2.jpg

    It's nice and quiet now, and if that 6mm bushing ever shows any wear, it's a small matter to swap it out. =^..^=
    Yep...I had that, did exactly the same thing
    Tip for the day; Treat every problem as your dog would.....If you cant eat it or f*ck it....then p*ss on it & walk away...

  5. #5
    Master Of The Obvious 10,000+ Posts
    bizhub 558 buzzing near the bridge unit.

    blackcat4866's Avatar
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    Re: bizhub 558 buzzing near the bridge unit.

    I wouldn't be a bit surprised if a bulletin comes out to this effect. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  6. #6
    KonicaMinolta Senior Tech 500+ Posts srvctec's Avatar
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    Re: bizhub 558 buzzing near the bridge unit.

    Quote Originally Posted by blackcat4866 View Post
    It was simple to key the bridge cover and see that the noise was coming from the exit section, not the bridge.

    Manually turning the gears from the exit drive, I can catch the exit timing belt jumping ... so I pulled out the exit section, and it looks like this:

    bizhub_558_buzzing_noise1.jpg

    The pulley driven by that timing belt seems to have ovalled out the frame, where the shaft passes through, loosening up the belt. The other bores seem to be intact, not-worn, so I thought maybe an oil impregnated bronze bushing might do the trick, like this:

    bizhub_558_buzzing_noise2.jpg

    It's nice and quiet now, and if that 6mm bushing ever shows any wear, it's a small matter to swap it out. =^..^=

    Nice fix! What was the total count on that machine?
    Started in the copier service business in the fall of 1988 and have worked at the same company since then, now the senior tech, since 2004.

  7. #7
    Master Of The Obvious 10,000+ Posts
    bizhub 558 buzzing near the bridge unit.

    blackcat4866's Avatar
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    Re: bizhub 558 buzzing near the bridge unit.

    Quote Originally Posted by srvctec View Post
    Nice fix! What was the total count on that machine?
    225K ... not much. That's mainly why I did not order another inferior plastic piece. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  8. #8
    Senior Tech 250+ Posts
    bizhub 558 buzzing near the bridge unit.

    tulintron's Avatar
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    Re: bizhub 558 buzzing near the bridge unit.

    Quote Originally Posted by blackcat4866 View Post
    It was simple to key the bridge cover and see that the noise was coming from the exit section, not the bridge.

    Manually turning the gears from the exit drive, I can catch the exit timing belt jumping ... so I pulled out the exit section, and it looks like this:

    bizhub_558_buzzing_noise1.jpg

    The pulley driven by that timing belt seems to have ovalled out the frame, where the shaft passes through, loosening up the belt. The other bores seem to be intact, not-worn, so I thought maybe an oil impregnated bronze bushing might do the trick, like this:

    bizhub_558_buzzing_noise2.jpg

    It's nice and quiet now, and if that 6mm bushing ever shows any wear, it's a small matter to swap it out. =^..^=
    +2 Excellent idea
    Nothing like day after day

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