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  1. #1
    Join Date
    May 2013
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    Customer didn't hear anything.

    So, we were called there due to MUA having a high discharge air temp issue. This is what one of our guys found, along with some maxitrol issues.

    Onsite maintenance hadn't heard anything out of the ordinary. :0

    I'm kind of proud of my temporary repair. Tempted to change out the other bearing to a pillar and calling it fixed.

  2. Likes dbacmc liked this post
  3. #2
    Join Date
    Jan 2010
    Location
    Sea to Sky
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    Get er dun!

    Sent from my SM-G965W using Tapatalk

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  5. #3
    Join Date
    Nov 2014
    Location
    Portland, Oregon, United States
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    Dang! Genius!

    Sent from my SM-N950U using Tapatalk

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  7. #4
    Join Date
    May 2014
    Location
    Bay Area California
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    A York?
    If you were a real tech, you'd solder a relay on that board and call it good to go.

    I do a triple evac with nitro to remove non condensables.

    I use 56% silver on everything except steel.

    Did you really need the " If you were a real tech " ??

  8. #5
    Join Date
    Sep 2007
    Location
    State College, PA
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    Quote Originally Posted by BBeerme View Post
    A York?
    Had a York do that to me one time. Fun times.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  10. #6
    Join Date
    May 2013
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    Thread Starter
    Quote Originally Posted by BBeerme View Post
    A York?
    Engineered Air in this case.

    The concentric locking collar appeared loose when I removed what was left of the bearing. I suspect the bearing had walked on the shaft due to this.

  11. #7
    Join Date
    Jul 2009
    Location
    Columbia, MD
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    From the looks. You are a real mechanic


    Sent from my iPhone using Tapatalk

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  13. #8
    Join Date
    Sep 2005
    Location
    Atlanta GA area
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    You did good...

    I repaired one of those failures last Spring... the shaft ate all the way through the bearing support.
    Seems to always happen on the belt drive side.

    Did a temp repair... ordered a whole new blower assembly... about 2 weeks later... got it going again.
    New blower is GREAT!
    GA-HVAC-Tech

    Your comfort, Your way, Everyday!

  14. #9
    Join Date
    May 2014
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    Bay Area California
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    For what it is worth, there is a particular direction to lock those eccentric collars. And it is not intuitive. Done improperly, promotes further problems.

    Ask me how to do it proper.


    Quote Originally Posted by Lahrs View Post
    Engineered Air in this case.

    The concentric locking collar appeared loose when I removed what was left of the bearing. I suspect the bearing had walked on the shaft due to this.
    If you were a real tech, you'd solder a relay on that board and call it good to go.

    I do a triple evac with nitro to remove non condensables.

    I use 56% silver on everything except steel.

    Did you really need the " If you were a real tech " ??

  15. #10
    Join Date
    May 2013
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    Thread Starter
    Quote Originally Posted by BBeerme View Post
    For what it is worth, there is a particular direction to lock those eccentric collars. And it is not intuitive. Done improperly, promotes further problems.

    Ask me how to do it proper.
    Eccentric, not concentric! Thanks.


  16. #11
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    May 2013
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    Thread Starter
    Quote Originally Posted by ga-hvac-tech View Post
    You did good...

    I repaired one of those failures last Spring... the shaft ate all the way through the bearing support.
    Seems to always happen on the belt drive side.

    Did a temp repair... ordered a whole new blower assembly... about 2 weeks later... got it going again.
    New blower is GREAT!
    Totally GA. It's nearly always the drive side.

    This is from a while ago, but always makes me laugh.

  17. #12
    Join Date
    May 2014
    Location
    Bay Area California
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    So, in your own words, how do you lock those eccentric collars in?


    Quote Originally Posted by Lahrs View Post
    Eccentric, not concentric! Thanks.

    If you were a real tech, you'd solder a relay on that board and call it good to go.

    I do a triple evac with nitro to remove non condensables.

    I use 56% silver on everything except steel.

    Did you really need the " If you were a real tech " ??

  18. #13
    Join Date
    Jul 2012
    Location
    WA
    Posts
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    You tap it so it turns in the direction of rotation, which seems backwards. I’d think it should be opposite of rotation so starting torque isn’t trying to loosen it. That’s what the directions say though.

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