Results 1 to 13 of 13

Thread: S89 Failures

  1. #1
    Join Date
    May 2009
    Location
    New Zealand
    Posts
    141
    Rep Power
    15

    S89 Failures



    Has anyone had experiance with or heard of catastrophic failures with S89's?



  2. #2
    Join Date
    Oct 2009
    Location
    France
    Age
    55
    Posts
    11
    Rep Power
    0

    Re: S89 Failures

    Which kind of failure ?

  3. #3
    Join Date
    May 2007
    Location
    The Netherlands
    Age
    54
    Posts
    30
    Rep Power
    0

    Re: S89 Failures

    Sure superfridge, I have seen some catastrophic failures on S89 compressors, but usually they are caused by system faults or foreign objects. These are very good compressors with high efficiency, so close tolerances, making them sensitive for dirt or other ojects coming in. What's the reason for your question?

    The Screwdoctor

  4. #4
    Join Date
    May 2009
    Location
    New Zealand
    Posts
    141
    Rep Power
    15

    Re: S89 Failures

    Quote Originally Posted by sevilou View Post
    Which kind of failure ?
    A failure that requires the compressor to be replaced

  5. #5
    Join Date
    May 2009
    Location
    New Zealand
    Posts
    141
    Rep Power
    15

    Re: S89 Failures

    Quote Originally Posted by The Screwdoctor View Post
    Sure superfridge, I have seen some catastrophic failures on S89 compressors, but usually they are caused by system faults or foreign objects. These are very good compressors with high efficiency, so close tolerances, making them sensitive for dirt or other ojects coming in. What's the reason for your question?

    The Screwdoctor
    Just woundering if the S89 is problematic as I have heard of two failures. I know there is normally a reason but maybe........... Also I believe they are not made anymore?

  6. #6
    Join Date
    Dec 2007
    Location
    australia
    Posts
    3,356
    Rep Power
    39

    Re: S89 Failures

    From the ones I've worked on , although not 89's they look pretty well bullet proof ( of course your statement stuffs that up ) .

    In the early days they had thrust bearing failures because thrusts were skidding because of not enough preload on bearings . That was fixed with shim between inner races to take up clearances .
    I've heard of a case where oil pump kept failing causing debris to enter roller bearings . Don't know reason but they ended up installing remote pump .
    I know I'm having a bit of trouble with shart seals , "o" rings getting to hot ?

    Give us more info than failure if you can ?
    Is it a booster or high side ?

  7. #7
    Join Date
    May 2007
    Location
    The Netherlands
    Age
    54
    Posts
    30
    Rep Power
    0

    Re: S89 Failures

    I agree with Ranger1, it is pretty much bullet proof the S89. They are not in full production anymore but still are available as exchange block or if wanted brand new.
    What refrigerant the compressors have been operating and did you opened up the compressor to see what went wrong?

    The Screwdoctor

  8. #8
    Join Date
    May 2009
    Location
    New Zealand
    Posts
    141
    Rep Power
    15

    Re: S89 Failures

    I don't have 1st hand knowlege of the failures, only educated suspicions so would prefur not to comment.

    Thanks for your replys.

  9. #9
    Join Date
    Dec 2007
    Location
    australia
    Posts
    3,356
    Rep Power
    39

    Re: S89 Failures

    You got us all excited FOR NOTHING !

  10. #10
    Join Date
    Jun 2008
    Location
    NZ
    Age
    46
    Posts
    9
    Rep Power
    0

    Re: S89 Failures

    Hi, i assisted in a strip down of a S89 booster. before strip down there was a rumbling noise from the none drive end of the male rotor. we found the outer race of that bearing had been skiding in its housing,got the housing re-sleeved all sweet now.Other than that some sets out in the field that i've notice dont measure the suction/discharge pressure differantial on start up.there is a possiability of lubrication issues in this process.

  11. #11
    Join Date
    Dec 2007
    Location
    australia
    Posts
    3,356
    Rep Power
    39

    Re: S89 Failures

    I would have thought roller bearings would'nt need to much oil on start up or when running .
    These machines have combination oil pump for main bearings discharge end + unloaders and differential for suction side rollers + oil injection .

  12. #12
    Join Date
    May 2007
    Location
    The Netherlands
    Age
    54
    Posts
    30
    Rep Power
    0

    Re: S89 Failures

    Hey Rusty,

    I agree when you say that these compressors need differential pressure as soon as possible at startup, but in some cases it is advisable to install an external full lube oilpump if the oilflow is not there within the desired time. The oilpump which is normally bolted on is removed and a 50 ltr. per min. oilpump is connected on the compressor. We recently overhauled a S87 booster which looked like new inside after appr. 60.000 hrs.
    Not guarding your oilflow can result in serious problems, it is a must on industrial screw compressors in general, they are quite expensive to overhaul or replace.

    The Screwdoctor

  13. #13
    Join Date
    Dec 2007
    Location
    australia
    Posts
    3,356
    Rep Power
    39

    Re: S89 Failures

    Slightly off subject but prelube like screwdoctor is always best as long as screw does'nt fill up with oil before start .
    I don't have to much experience with frick but they have roller bearings similar to S89 .
    Checked oil failure after general overhaul and was shocked as it was set on 10 minutes with no oil pressure before cut out .
    Apparently this is normal !
    To bad if someone leaves a valve closed .

Similar Threads

  1. Frick Premature Seal Failures
    By Steve Wright in forum Industrial Compressors
    Replies: 32
    Last Post: 11-06-2010, 02:34 PM
  2. Discharge line failures
    By coolbear1 in forum Trouble Shooting
    Replies: 19
    Last Post: 25-06-2009, 06:05 AM
  3. Daikin Inverter board failures
    By Greengrocer in forum Air Conditioning
    Replies: 10
    Last Post: 21-05-2009, 04:35 PM
  4. IPM Failures
    By icecap in forum Air Conditioning
    Replies: 14
    Last Post: 07-08-2007, 09:51 PM
  5. Frequent Failures
    By abdulazman in forum Trouble Shooting
    Replies: 21
    Last Post: 08-01-2006, 08:40 PM

Posting Permissions

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