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  1. #14
    Join Date
    Mar 2008
    Posts
    279
    Quote Originally Posted by billymons View Post
    I'm going back to it now. I have a feeling the motor is cocked on its mount a little. We will see. Everything is clean. Sorry I forgot about new sheave
    If u have acess to a sheave laser alignment tool I would use it that will cause vibration. Also u said u had new motor the motor could have a soft foot issue if u loosen one bolt at a time and run and it gets better then soft foot, if the case a shim or washer the correct height will fix. Also on the blower wheel have u lost any weights could be out of balance check and see if u see where one use to be.

    Sent from my BlackBerry using Tapatalk please excuse typographical errors
    If you can not do it right, Why even do it at all?

  2. #15
    Join Date
    Mar 2008
    Posts
    279
    Also forgot to ask how is your belt tension

    Sent from my BlackBerry using Tapatalk please excuse typographical errors
    If you can not do it right, Why even do it at all?

  3. #16
    Join Date
    Feb 2011
    Location
    Fogelsville, Pa.
    Posts
    117
    Ok the belt tension is ok per spec. What I did do is switch out the motor with a nice quiet similar unit that was on the same roof. This motor also vibrated. When I remove the belt on either motor and turn on power,the motor is nice and quiet and not shaky. It's got to be the squirrel cage it must be off balance? I didn't see any missing weights. Although I could only see one side of the cage. It looked good when I had it out, no loose fins no damage. Guess Ill be taken it apart again.

  4. #17
    Join Date
    Mar 2008
    Posts
    279
    Quote Originally Posted by billymons View Post
    Ok the belt tension is ok per spec. What I did do is switch out the motor with a nice quiet similar unit that was on the same roof. This motor also vibrated. When I remove the belt on either motor and turn on power,the motor is nice and quiet and not shaky. It's got to be the squirrel cage it must be off balance? I didn't see any missing weights. Although I could only see one side of the cage. It looked good when I had it out, no loose fins no damage. Guess Ill be taken it apart again.
    Could use a dial indicator and check to see if that shaft is bent as others stated. This the type that the two half's of the blower wheel are welded together? if it is that style then I have seen them break apart.

    Sent from my BlackBerry using Tapatalk please excuse typographical errors
    If you can not do it right, Why even do it at all?

  5. #18
    Join Date
    Oct 2007
    Location
    Austin Texas
    Posts
    1,802
    Also see if the hub hasn't spun in the wheel. It may be out of center. I had one do that on a 15 ton Voyager and it would shake the whole roof.
    Nemo me impune lacessit.

    How much blood do I have to bathe in to get clean?

    Don't look down on anyone unless you're helping them up.

  6. #19
    Join Date
    Mar 2008
    Posts
    279
    Quote Originally Posted by luv2cruiserccl View Post
    Could use a dial indicator and check to see if that shaft is bent as others stated. This the type that the two half's of the blower wheel are welded together? if it is that style then I have seen them break apart.

    Sent from my BlackBerry using Tapatalk please excuse typographical errors


    does your unit look like this?
    Attached Images Attached Images     
    If you can not do it right, Why even do it at all?

  7. #20
    Join Date
    Feb 2011
    Location
    Fogelsville, Pa.
    Posts
    117
    Quote Originally Posted by luv2cruiserccl View Post
    does your unit look like this?
    WOW That did a number on that shaft! Yes that looks like it. The center of the blower wheel looks like two cone discs welded together, hollow in the middle.

  8. #21
    Join Date
    Jun 2012
    Posts
    529
    Quote Originally Posted by billymons View Post
    WOW That did a number on that shaft! Yes that looks like it. The center of the blower wheel looks like two cone discs welded together, hollow in the middle.
    Don't drive those wheels off the shaft if you think your reusing it

  9. #22
    Join Date
    Mar 2008
    Posts
    279
    Quote Originally Posted by billymons View Post
    WOW That did a number on that shaft! Yes that looks like it. The center of the blower wheel looks like two cone discs welded together, hollow in the middle.
    Ya the support bracket welds broke and that shaft was riding that bracket and just about cut in all the way thru. Made a ton of noise!! Wink! I have seen that style blower come loose in the middle where that two halfs meet and make a ton of noise. I assume there is no debris on the fan wheel throwing it out of balance. I bet u had either a weight come off, over tension of belt, or bend shaft, and probably last that the blower wheel split in the middle where u can not see it.

    Sent from my BlackBerry using Tapatalk please excuse typographical errors
    If you can not do it right, Why even do it at all?

  10. #23
    Join Date
    Jun 2012
    Posts
    529
    Name:  ImageUploadedByTapatalk1358868982.608489.jpg
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    Here is a fun one I'm on today. Pool dehumidifier 10ft off floor with compressor right by bearing that needs to come out.

    OP have any luck?

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