Page 1 of 6 123456 LastLast
Results 1 to 13 of 72
  1. #1
    Join Date
    Mar 2007
    Posts
    3,195
    Post Likes

    Another Chiller Teardown & Rebuild

    770 ton Trane CVHF, bearing failure and a worn oil seal

    Name:  1.jpg
Views: 1672
Size:  53.6 KB
    Removing the economizer

    Name:  2.jpg
Views: 1483
Size:  39.5 KB
    Economizer sealed up for storage to prevent rust

    Name:  3.jpg
Views: 1476
Size:  46.8 KB
    Rigging of suction elbow

    Name:  4.jpg
Views: 1355
Size:  44.2 KB
    Removing suction elbow

    Name:  5.jpg
Views: 1332
Size:  40.1 KB
    Suction elbow covered to prevent rust

    Name:  6.jpg
Views: 1348
Size:  45.2 KB
    Compressor and evaporator flanges covered to prevent rust and prevent debris from falling in

    Name:  7.jpg
Views: 1310
Size:  54.2 KB
    Preparing to remove suction cover

    Name:  8.jpg
Views: 1326
Size:  48.5 KB
    Removing suction cover

    Name:  9.jpg
Views: 1356
Size:  49.0 KB
    Rigging the suction cover down and a shot of one of the work-tables where all of the tools return when we are done with something

    Name:  10.jpg
Views: 1390
Size:  29.7 KB
    Checking the run-out of the 1st stage impeller
    The key to happiness is lower expectations.

  2. #2
    Join Date
    Mar 2007
    Posts
    3,195
    Post Likes
    Name:  11.jpg
Views: 956
Size:  63.1 KB
    This is where the inter-stage shaft seal mounts on the 1st stage diffuser

    Name:  12.jpg
Views: 963
Size:  42.6 KB
    Looking at the motor journal bearing support with the oil seal, mounting plate, and internal oil line removed

    Name:  13.jpg
Views: 986
Size:  40.6 KB
    Setting up the dial indicator to make sure we do not move the shaft too much when we remove the bearing and bearing support

    Name:  14.jpg
Views: 965
Size:  48.0 KB
    Another shot of the dial indicator setup

    Name:  15.jpg
Views: 1060
Size:  40.5 KB
    The failed journal bearing

    Name:  16.jpg
Views: 985
Size:  38.8 KB
    Dowel pins installed to make sure the bearing support goes back exactly where it was before

    Name:  17.jpg
Views: 988
Size:  41.9 KB
    Removal of bearing support - we monitored the shaft at all times with the dial indicator as it could move no more than .003" in any direction

    Name:  18.jpg
Views: 967
Size:  41.2 KB
    Another shot of the removed journal bearing support and the bad back oil seal

    Name:  19.jpg
Views: 1015
Size:  34.0 KB
    Inside the motor

    Name:  20.jpg
Views: 994
Size:  53.9 KB
    Last edited by Tech Rob; 10-29-2012 at 11:23 PM.
    The key to happiness is lower expectations.

  3. Likes milkyway liked this post.
  4. #3
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,066
    Post Likes
    Something wrong with the second post, I cant see the pictures, first post is ok.

  5. Likes milkyway liked this post.
  6. #4
    Join Date
    Mar 2007
    Posts
    3,195
    Post Likes
    Quote Originally Posted by y7turbo View Post
    Something wrong with the second post, I cant see the pictures, first post is ok.
    Fixed. This new site format is glitchy.
    The key to happiness is lower expectations.

  7. #5
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,066
    Post Likes
    Quote Originally Posted by Tech Rob View Post
    Fixed. This new site format is glitchy.
    Works now, Thanks for sharing.

  8. #6
    Join Date
    Mar 2007
    Posts
    3,195
    Post Likes
    Quote Originally Posted by y7turbo View Post
    Works now, Thanks for sharing.
    Thanks for checking it out and commenting!
    The key to happiness is lower expectations.

  9. #7
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,066
    Post Likes
    Any idea on what the weights were on the parts you removed?

  10. #8
    Join Date
    Mar 2007
    Posts
    3,195
    Post Likes
    Economizer 840#
    Suction elbow 700#
    1st vane assy. 400#
    Suction cover 1700#
    Inter-stage 2000#

    Also a couple of smaller items between 50# and 200#
    The key to happiness is lower expectations.

  11. #9
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    4,727
    Post Likes
    that is cool! it looks like you know what your doing

  12. #10
    Join Date
    Mar 2007
    Posts
    3,195
    Post Likes
    Thanks! My motto is "fake it until you make it"!!!
    The key to happiness is lower expectations.

  13. #11
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,066
    Post Likes
    Quote Originally Posted by Tech Rob View Post
    "fake it until you make it"!!!

  14. #12
    Join Date
    Oct 2005
    Location
    USA
    Posts
    405
    Post Likes
    Wow. thanks for sharing the pics. I would love to do a tear down like that. nice job!
    RTFM!!!

  15. #13
    Join Date
    Aug 2009
    Location
    Prattville, Alabama
    Posts
    2,280
    Post Likes
    I've never seen that bearing bracket removed while the motor is still mounted to the discharge volute. Do you plan to replace the motor-to-volute o-ring? How about the discharge volute-to-condensor o-ring? Appreciate the pics. Very nice equipment room... once you get past the chilled water lines above the starter.

Page 1 of 6 123456 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine