Page 1 of 6 123456 LastLast
Results 1 to 13 of 72
  1. #1
    Join Date
    Mar 2007
    Posts
    3,352
    Post Likes

    Another Chiller Teardown & Rebuild

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

    Name:  1.jpg
Views: 1951
Size:  53.6 KB
    Removing the economizer

    Name:  2.jpg
Views: 1614
Size:  39.5 KB
    Economizer sealed up for storage to prevent rust

    Name:  3.jpg
Views: 1664
Size:  46.8 KB
    Rigging of suction elbow

    Name:  4.jpg
Views: 1528
Size:  44.2 KB
    Removing suction elbow

    Name:  5.jpg
Views: 1477
Size:  40.1 KB
    Suction elbow covered to prevent rust

    Name:  6.jpg
Views: 1485
Size:  45.2 KB
    Compressor and evaporator flanges covered to prevent rust and prevent debris from falling in

    Name:  7.jpg
Views: 1452
Size:  54.2 KB
    Preparing to remove suction cover

    Name:  8.jpg
Views: 1475
Size:  48.5 KB
    Removing suction cover

    Name:  9.jpg
Views: 1483
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: 1534
Size:  29.7 KB
    Checking the run-out of the 1st stage impeller
    The key to happiness is lower expectations.

    Don't pick the fly crap out of the pepper.

  2. #2
    Join Date
    Mar 2007
    Posts
    3,352
    Post Likes
    Name:  11.jpg
Views: 1084
Size:  63.1 KB
    This is where the inter-stage shaft seal mounts on the 1st stage diffuser

    Name:  12.jpg
Views: 1096
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: 1119
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: 1092
Size:  48.0 KB
    Another shot of the dial indicator setup

    Name:  15.jpg
Views: 1184
Size:  40.5 KB
    The failed journal bearing

    Name:  16.jpg
Views: 1123
Size:  38.8 KB
    Dowel pins installed to make sure the bearing support goes back exactly where it was before

    Name:  17.jpg
Views: 1122
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: 1088
Size:  41.2 KB
    Another shot of the removed journal bearing support and the bad back oil seal

    Name:  19.jpg
Views: 1132
Size:  34.0 KB
    Inside the motor

    Name:  20.jpg
Views: 1115
Size:  53.9 KB
    Last edited by Tech Rob; 10-29-2012 at 10:23 PM.
    The key to happiness is lower expectations.

    Don't pick the fly crap out of the pepper.

  3. Likes milkyway liked this post.
  4. #3
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,072
    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
    3,352
    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.

    Don't pick the fly crap out of the pepper.

  7. #5
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,072
    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
    3,352
    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.

    Don't pick the fly crap out of the pepper.

  9. #7
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,072
    Post Likes
    Any idea on what the weights were on the parts you removed?

  10. #8
    Join Date
    Mar 2007
    Posts
    3,352
    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.

    Don't pick the fly crap out of the pepper.

  11. #9
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    4,854
    Post Likes
    that is cool! it looks like you know what your doing

  12. #10
    Join Date
    Mar 2007
    Posts
    3,352
    Post Likes
    Thanks! My motto is "fake it until you make it"!!!
    The key to happiness is lower expectations.

    Don't pick the fly crap out of the pepper.

  13. #11
    Join Date
    Jul 2006
    Location
    Anytown USA
    Posts
    2,072
    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
    443
    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
    2,590
    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 MagazineThe place where Electrical professionals meet.
Quality Home Comfort Awards