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  • 1.  Best Practice Rotating Equipment Oil Replacement

    Posted 13 days ago

    Dear members,

    Looking for a guideline, work instruction, or a procedure on the " Best Practice for Rotating Equipment Lubricant Replacement " for oil & gas. 

    Appreciate your support.

    Regards,

    Khalid Al Habsi

    Oman LNG



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    Khalid Al Habsi
    Improvement and Job Instructor Mechanical
    Oman Lng L.L.C
    SUR
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  • 2.  RE: Best Practice Rotating Equipment Oil Replacement

    Posted 11 days ago

    Good Morning

    I would recommend using oil testing and analysis for PdM practices for oil replacement. This will allow you to see what type of wear particles your seeing in the oil or grease product. Most of your OEM's require interval changes based on hours. In a large capacity application, this can be quite costly.  Taking to route of PdM lubrication practices can reduce cost and actually show what stage of breakdown and properties they have for remaining lubrication life. Hope this helps



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    Scott Furman
    Maintenance Reliability Coordinator
    City of Tulsa Water and Sewer Dept
    Broken Arrow OK
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    Original Message


  • 3.  RE: Best Practice Rotating Equipment Oil Replacement

    Posted 11 days ago

    Again this depends on the size and scale of your asset… this is because conducting oil analysis is quite expensive, you always have to compare the cost of oil replacement to the cost of conducting oil analysis …. This will determine which one makes a business sense.



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    Henry Awhabro
    henryphyl@yahoo.com
    Port HarcourtNigeria
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    Original Message


  • 4.  RE: Best Practice Rotating Equipment Oil Replacement

    Posted 11 days ago

    Dear all 

    I recommend to do oil analysis for your oil , take a sample and check its condition and the report from labe . 

    There is a recommendation came by the labe authoriser..

    This technique can give you a very cost benefit .



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    Mohammed Merghani
    maintenance manager
    al adnani
    Salalah
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    Original Message


  • 5.  RE: Best Practice Rotating Equipment Oil Replacement

    Posted 10 days ago

    Hello Khalid,

    I have personally found the publication "Forsthoffer's Best Practice Handbook for Rotating Machinery" to be a very good resource on the subject.

    Probably it could be of help to you.

    Best regards,

    Justice



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    Justice Adu-Acheampong
    Principal Mechanical Engineer
    Tema
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    Original Message


  • 6.  RE: Best Practice Rotating Equipment Oil Replacement

    Posted 9 days ago

    Hi Khalid,

    As others have said, using an effective oil analysis programme is essential to confirm you need to actually change the oil. Most of the time oil does not require to changed, it's the lazy default action of most organisations thinking that an oil change will solve their lubrication problems, understand why has the oil degraded and investigate if required. If it has naturally aged and does need changing:

    Change the oil when it's hot and immediately after the equipment has been shut down. This ensures that contamination remains suspended in the oil rather than settling out.

    For a large system, use a vacuum pump to remove residual oil that will contain contamination.

    Once the system is empty, take the opportunity to inspect tank/vessel internals for any signs of varnish, sludge and general condition and record condition.

    Refill the system with clean filtered oil and take another oil sample a day or so after equipment has been brought back online.

    Derek 



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    Derek Brown
    Reliability Engineer
    bp
    Grangemouth
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    Original Message


  • 7.  RE: Best Practice Rotating Equipment Oil Replacement

    Posted 5 days ago

    Most will use the OEM recommendation but I have found most of these to be overkill and not a best practice to follow.  Like others have mentioned, I rely on predictive maintenance technology - vibration, oil analysis, temperature, etc. to help set intervals for oil changes.  I work in pulp and paper but the equipment is near the same for oil and gas.

    One example of what I'm talking about.  Many pump OEMs say change oil at 2000 hours (every quarter).  Unless you have a contamination or severe temperature issue, this is way too often.  I've repeated several studies on pump lubrication change intervals and found the following.  With good pump operating conditions operating a synthetic oil, I had no lube oil degradation after 2 years of operation.  I never pushed intervals beyond 2 years but set the standard for pumps on synthetic oil at 2 years oil change unless there were contamination or other issues observed.  It is not practical to do oil analysis on pumps due to the low volume of oil.

    I'd advise a similar approach to any oil change interval.  Study the equipment and put reliability checks in place to set intervals.

    Great topic for discussion.



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    Randy Riddell, CMRP, PSAP, CLS
    Reliability Manager
    Essity
    Cherokee AL
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    Original Message