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  1. #14
    Join Date
    Nov 2011
    Location
    DFW area
    Posts
    10
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    Carrier teardowns

    Quote Originally Posted by smith21 View Post
    Have a carrier 19xr with 29,000 hours. At what interval is a teardown recomended?
    The 19XR is very similar to the DK ,especially if it has the older Kingsbury design Thrust assembley just like the D series which Carrier has the 3 year and 6 year inspection in the old green task code book and the new gray one. but that being said

    I've had to teardown some19XR chillers with as little as 18,000 hours that the low speed shaft had already gotten into the bull gear and rotor on the low speed thrust end of the bearings, Most of the ones I've seen damaged this way you can find the alarm history full of surge, high condenser press , and so on.
    Some of the bearingsI've changed seem to have a little copper plating. I would agree about oil analysis, vibration analysis,

    I would also say around 10 years or 25,000 hours for a little preventive maintance even if vibe and oil checks OK I would schedule a teardown and replace all the orings, gaskets and seals including the ones on the fittings and oil heater

  2. #15
    Join Date
    Mar 2015
    Posts
    1
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    Quote Originally Posted by ESS CHILL WATER View Post
    Hi Can share with you the complete scope of work for ST1 , ST3 , ST6 this particular code we handling internal when i just work for the factory , let me check with my papers and certanly can share with you .

    regards

    Oscar
    Hello Oscar,
    Did you ever get the ST1, ST3, ST6 info from ESS and if you did, can you share it with me?
    I spoke to our local carrier rep about getting a copy of the ST6 to validate the 30k hours/overhaul requirement run time hour interval for our 17FA and 19 FA and he told me it doesnot exist except by word of mouth.
    Thanks for any help on this issue.

    My contact email :alan.degracia@sce.com

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