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Cosasco RBS Maintenance Manual

Retriever
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COSASCO
MAINTENANCE
Work Instruction
11841 Smith Avenue
Santa Fe Springs, CA 90670
Tel:
(562) 949-0123 • (800) 635-6898
Fax:
(562) 949-3065
Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
®
RBS/RBSA RETRIEVER
P/ N: 741031revH
www.cosasco.com

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  • Page 1 P/ N: 741031revH Santa Fe Springs, CA 90670 www.cosasco.com Tel: (562) 949-0123 • (800) 635-6898 Fax: (562) 949-3065 Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 2 Added note on footer about latest revision 12/15/15 Annual Review/Update Cover and Name to Cosasco Throughout Document. 12/15/16 Annual Review 26/06/17 Annual Review Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 3 Rohrback Cosasco Systems, Inc. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 4: Table Of Contents

    Servicing & Pressure Testing Of Retrieval Equipment ........ 41 Pressure Testing ....................41 Pressure Testing Procedure .................. 43 Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 5: Important Instructions

    1. Read and understand all instructions and operating procedures for this product. 2. Follow all warnings, cautions, and notices marked on, and supplied with, this product. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 6: Disclaimer

    Always seek the advice of your legal, medical or other advisors before using this information. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 7: Safety Warnings

    13. Warning: Do not apply a load of more than 150 pounds, perpendicular to the Retriever body axis, to prevent breakage from bending stresses. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 8: Scope Of Document

    Inner Barrel Mandrel Outer Barrel Pressure Bleed Valve Gauge Outer Barrell Handle Assembly Hammer Nut Socket Adapter Assembly Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 9: Sour Gas Service

    2. Add solvent. Pour approximately one pint (1/2 liter) of solvent into the retriever inner barrel. 3. Collapse the retriever slowly. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 10 11. Test the retriever operation. If the retriever still has a gritty feel and sound after the stroking procedure indicated above, it must be disassembled for thorough cleaning and lubricating. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 11: Retriever Disassembly

    P/N: 741031revH Page: 11 of 46 Scheduled Review Date: July 2018 Date: 26/06/2017 Retriever Disassembly Retriever Diagram Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 12 RBS/RBSA Retriever Maintenance Work Instruction P/N: 741031revH Page: 12 of 46 Scheduled Review Date: July 2018 Date: 26/06/2017 Parts List Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 13 2. Loosen and remove the four 3/8” Allen Screws using a 5/16” Allen Key. Ensure the Retriever head (10) is held in place. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 14 3. Remove the Retriever head (10) and the Mandrel Rod Stop Washer (11). 4. Withdraw the Mandrel Rod (12) from the Inner Barrel end (22). Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 15 6. Remove the Socket Adaptor Pilot, spring, and flat washer. Drive out the split pin with a 1/4" punch. Reverse steps 6 & 5 to re attach the pilot head. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 16 8. Withdraw Inner Barrel from Outer Barrel completely and use wood clamp assembly to secure retriver on the viser. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 17 10. Using a C Spanner in the holes provided, unscrew the Thread Adaptor (8) from the Inner Barrel. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 18 12. Cover the Hammer Nut threads with PTFE tape and carefully slide the Inner Barrel out through the Retriever Head end. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 19 Date: 26/06/2017 13. Loosen and remove the four 3/8” Allen screws to remove the Seal Stop Collar. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 20 14. Gently remove the Seal Retainer and then the Seal Assembly. Care is required to prevent damaging the inner seal upon removal. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 21 16. Remove the Socket Head Cap. If difficult to remove use a pick tool or small slotted screwdriver to gently lever it off. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 22 Cap End. If is difficult to remove, use a pick tool to gently lever them out. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 23 20. Clean and wipe down all other parts except the Seal Carrier Assemblies. 21. Inspect all Seals and O-rings for nicks and abrasions and replace where necessary. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 24 Date: 26/06/2017 22. To remove seals from their carriers, use a pick tool or small slotted screwdriver. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 25 23. To reinstall new seals into carriers apply a liberal amount of grease and be careful not to pinch the seals. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 26: Retriever Assembly

    1. Gently reinsert Seal Carrier and then Seal Retainer into cap end of Inner Barrel. Ensure seal face is facing into the barrel. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 27 Ensure seal face is facing into the barrel. 3. Reinstall Socket Head Cap (24) again applying even pressure to either side. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 28 4. Reinstall the four Allen screws into the Socket Head Cap (24) with a 1/4" Allen Key. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 29 5. Slide the Inner Barrel back into the Outer Barrel from the Retriever Head end. 6. Apply grease to Outer Barrel Seal. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 30 7. Gently slide seal over end of Inner Barrel (22) (spring/open end facing toward threads). 8. Gently slide seal over Inner Barrel threads. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 31 31 of 46 Scheduled Review Date: July 2018 Date: 26/06/2017 9. Slide Seal Carrier over Inner Barrel threads. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 32 32 of 46 Scheduled Review Date: July 2018 Date: 26/06/2017 10. Gently press Seal into Seal Carrier Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 33 Scheduled Review Date: July 2018 Date: 26/06/2017 11. Now gently slide carrier w/seals along the Inner Barrel and into Outer Barrel. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 34 12. Install the Seal Retainer 13. Install the Seal Stop Collar (9). Re-insert the four 3/8" Allen Screws and tighten. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 35 15. Check O-ring on the Thread Adaptor for nicks or abrasions and change if necessary. 16. Reinstall Thread Adaptor onto Inner Barrel and hand tighten. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 36 18. Using a C Spanner in the holes provided, screw the Thread Adaptor (8) onto the Inner Barrel threads tight. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 37 20. Reinstall the two 1/4" Allen screws (26) which retain the Thread Adaptor (8) by using a 1/8” Allen Key. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 38 22. Slide on the Retriever Head (10) and the Mandrel Stop Washer (11) onto the Hex end of the Mandrel Rod. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 39 24. Reinstall the Mandrel stop nut (15) and flat washer (14) onto the Mandrel Rod end and tighten with a shifting spanner. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 40 If not smooth flush tool with a suitable lubricant or apply more grease to the inner barrel. 27. Perform appropriate pressure test for tools operational rating in PSI. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 41: Servicing & Pressure Testing Of Retrieval Equipment

    Technician using the equipment must possess current pressure test certificates for the retrieval equipment prior to commencing on-line retrievals operations. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 42 7 days of the successful test. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.

  • Page 43: Pressure Testing Procedure

     50% of pressure rating of equipment.  100% of pressure rating of equipment.  150% of pressure rating of equipment. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 44 If any pressure loss is due to leakage, this will be visible and immediately apparent. Note: Please ensure you have the latest revision of this document by downloading it from our website or by contacting Cosasco Customer Service.
  • Page 45 NOTES...
  • Page 46 Cosasco  sales@cosasco.com  www.cosasco.com...

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