Another Chiller Teardown & Rebuild

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

Attachment 322191
Removing the economizer

Attachment 322201
Economizer sealed up for storage to prevent rust

Attachment 322221
Rigging of suction elbow

Attachment 322231
Removing suction elbow

Attachment 322241
Suction elbow covered to prevent rust

Attachment 322251
Compressor and evaporator flanges covered to prevent rust and prevent debris from falling in

Attachment 322261
Preparing to remove suction cover

Attachment 322271
Removing suction cover

Attachment 322281
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

Attachment 322181
Checking the run-out of the 1st stage impeller

Attachment 322601
This is where the inter-stage shaft seal mounts on the 1st stage diffuser

Attachment 322591
Looking at the motor journal bearing support with the oil seal, mounting plate, and internal oil line removed

Attachment 322581
Setting up the dial indicator to make sure we do not move the shaft too much when we remove the bearing and bearing support

Attachment 322571
Another shot of the dial indicator setup

Attachment 322621
The failed journal bearing

Attachment 322561
Dowel pins installed to make sure the bearing support goes back exactly where it was before

Attachment 322551
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

Attachment 322541
Another shot of the removed journal bearing support and the bad back oil seal

Attachment 322531
Inside the motor

Attachment 322611

Something wrong with the second post, I cant see the pictures, first post is ok.

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Originally Posted by y7turbo

Something wrong with the second post, I cant see the pictures, first post is ok.

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Fixed. This new site format is glitchy.

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Originally Posted by Tech Rob

Fixed. This new site format is glitchy.

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Works now, Thanks for sharing. :cheers:

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Originally Posted by y7turbo

Works now, Thanks for sharing. :cheers:

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Thanks for checking it out and commenting!

Any idea on what the weights were on the parts you removed?

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#

that is cool! it looks like you know what your doing

Thanks! My motto is "fake it until you make it"!!!

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Originally Posted by Tech Rob

"fake it until you make it"!!!

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:cheers:

Wow. thanks for sharing the pics. I would love to do a tear down like that. nice job!

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.