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Crewsaver MIRG ELITE TWIN CHAMBER LIFEJACKET Service Manual

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Crewsaver -
Servicing Manual : MIRG Elite Twin 275 Lifejacket
Project No
Date: November 2016
Issue No: 3
: 00164-0104
SERVICE MANUAL
MIRG ELITE TWIN CHAMBER
LIFEJACKET
Survitec House, Lederle Lane, Gosport,
Hants. PO13 0FZ, England.
Tel: +44 (0) 1329 820000 Fax: +44 (0) 1329 236218
email: crewsaver@survitecgroup.com
Web: www.crewsaver.com
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  • Page 1 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Project No : 00164-0104 SERVICE MANUAL MIRG ELITE TWIN CHAMBER LIFEJACKET Survitec House, Lederle Lane, Gosport, Hants. PO13 0FZ, England. Tel: +44 (0) 1329 820000 Fax: +44 (0) 1329 236218 email: crewsaver@survitecgroup.com...
  • Page 2 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Project No : 00164-0104 Service Bulletins and Amendments Register Description Date This is a complete revision of the Manual. The servicing principles covered by earlier issues remain the same but service personnel should read through this new Manual to familiarise themselves with the updated information.
  • Page 3 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Project No : 00164-0104 Scope This manual covers the servicing of the MIRG Elite 275N Twin Chamber lifejacket without any current derivatives. Index Section 1 Introduction Product Description Data Sheet...

  • Page 4: Product Description

    Username and Password to enable them to access the download section. Each manual carries an Issue Number and records of issue are logged by Crewsaver to ensure that the service network maintains correct and up to date servicing information. Emails will be sent regarding any new Issues.
  • Page 5 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Data Sheet MIRG Elite Twin 275N Lifejacket Features: 275N Front Chamber Buoyancy: 275N Rear Chamber Buoyancy: 275N Total Chamber Buoyancy: 275N Buoyancy category: Silver Cover Colour...

  • Page 6: General Features

    Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 1.4.1 General Features Page Date: November 2016 of 31 Issue No: 3...
  • Page 7 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 1.5.1 Donning Instructions Don the lifejacket like a normal jacket The backstrap should then be positioned down the centre of the back. Pull twin crutch straps through legs and fasten buckles.

  • Page 8: Service Stations

    2.2.7 Damaged areas shall only be marked using wax based crayon; Marks shall be with a small circle or cross. Ballpoint, rollerball or other forms of ink shall not be used. If in doubt refer to Crewsaver for guidance. 2.2.8 Repairs to pouch are limited to that detailed in section 7.1...

  • Page 9: General Care

    Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 General Care 2.3.1 This automatic jacket should be stowed in accordance with the manufacturers instructions 2.3.1.1 Lifejackets should be stowed in a dry compartment. Avoid high humidity, such as a car boot.
  • Page 10 N.B. In case of difficulty contact Crewsaver direct (Not sewing machines, cabinets or tables - these parts may be sourced locally). Note: Prior consent to carry out any repairs must be pre-approved by Crewsaver. All repairs to stitching must be in accordance with this manual.

  • Page 11: Serial Numbers

    Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section 2 Project No : 00164-0104 CERTIFICATE NUMBER: LIFEJACKET SERVICING SCHEDULE W/O Number: TYPE CUSTOMER VESSEL LAST SERVICED BY DATE OF LAST SERVICE SERIAL NUMBER/S: COMMENTS COMMENTS CHAMBER INSPECTION INFLATION MECHANISM...
  • Page 12 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section 2 Project No : 00164-0104 Lifejacket Servicing Tool Kit Cylinder Torque Strap Calibrated Socket Driver (Tighten Cylinder) UML Mk5i Auto Socket Calibrated Socket Driver Turned Socket (Remove & Replace Locking Nuts For UML &...
  • Page 13 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Unpacking 3.1.1. Open the zips and velcro around the outside of the cover by peeling the fabric apart. Care should be taken not to snag the operating cords.
  • Page 14 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Fig 3.1 Unpacking the Lifejacket Fig. 3.1.1 Fig. 3.1.2 Fig. 3.1.3 Fig. 3.1.4 Fig. 3.1.5 Fig. 3.1.6 Page The lifejacket illustrated above is the standard Elite but the process of unpacking is Date: November 2016 the same for the MIRG Elite.
  • Page 15 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Fig 3.2 United Moulders Mk6 Operating Head Fig. 3.2.1 Fig. 3.2.2 Unscrew the Automatic firing capsule from the end of each Unscrew the 60 gram cylinders from the automatic operating head.
  • Page 16 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Cleaning Lifejackets 4.1.1 The current standard cover of the MIRG Elite has aluminised, fireproof fabric outer cover that can be cleaned with care. In the event that contamination is such that the materials are inherently damaged refer to section 7.

  • Page 17: Gas Cylinders

    Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Outer Cover Inspection 5.1.1 Visually inspect the cover material for wear, abrasion, pulled threads, contamination, cuts and holes. Inspect the PVC windows, D-Ring and velcro patches. Check the presence of the manual inflation caps and buddy line in the pouch attached to the waistbelt.
  • Page 18 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Light and Battery 5.4.1 Visually inspect the light for signs of damage to: 5.4.1.1. the trip line; ensure that the toggle is securely attached. 5.4.1.2. the cable.
  • Page 19 Buckles 5.8.1 Visually inspect all buckles used on the webbings for signs of damage or corrosion. Remedial Action: No repairs are allowed. In the case of damage being found return the Lifejacket to Crewsaver. Spray Hood (if fitted) 5.9.1 Visually inspect the spray hood for: 5.9.1.1.
  • Page 20 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Inflation Chamber 6.1.1. Air Holding Test. (Both Chambers must be tested independently) 6.1.1.1 Connect through a suitable Tee piece and adaptor, the oral tube with the oral valve in the open position, to a graduated water manometer (or a similar digital device for measuring back pressure).
  • Page 21 6.3.2.4 If the mechanism fails to pass this test replace the complete unit. Refer to Section 9 for part Number of the replacement part. NOTE: all failures of this test must be reported to Crewsaver. Crewsaver may require the failed units to be returned, please do not discard.
  • Page 22 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Retro Reflective Tape 6.5.1 If the retro reflective tape shows any signs of degradation the following tests shall be carried out in accordance with Marine Guidance Note MGN 105 (M+F) Issued by the UK Marine and Coast guard Agency March 1999, the retro-reflective material shall be tested at each service as follows.

  • Page 23: Outer Cover

    Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Outer Cover 7.1.1 No repairs are allowed on the outer cover. Inflation Chamber 7.2.1 No repairs are permitted to the inflator fabric or its assembly, due to the construction of this lifejacket.
  • Page 24 Lifejackets. Worn, broken or cracked stitches are to be over sewn by 25mm in each direction past the extent of the fault, use only approved thread. (Refer to Crewsaver) In the case of the crutch strap replace damaged unit. Refer to Section 9 for Part No.
  • Page 25 7.10 Repair Parameters - Stitching All repairs to stitching must be carried out by a company deemed fit to perform the repair by Crewsaver prior to the work commencing. Stitching repairs should be performed when the visible inspection as detailed in section 5, Para 5.7 identifies broken or pulled stitches.
  • Page 26 8.1.3.1.5 Tighten the retaining nut onto the body using the Calibrated torque driver provided in the Crewsaver servicing tools. Note: Retaining nut must be tightened to between 2.5 and 2.7 Nm. Warning: Care must be taken not to ‘cross thread’ the connection.
  • Page 27 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Fig 8.1 United Moulders Mk6 Operating Head Fig. 8.1.1 Check that the cylinder sealing gasket in the end of the operating head has been correctly fitted, or replaced if necessary.
  • Page 28 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Fig 8.1 United Moulders Mk6 Operating Head Fig. 8.1.5 Check the bottom O-ring seal is in place. Before fitting the operating head onto the manifold, check that the schraeder valve is fitted. If fitting a new schraeder valve use a calibrated torque driver set to 0.32 - 0.36 Nm.
  • Page 29 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Fig 8.2 MIRG Elite Twin Packing Instructions Lay the jacket out as shown in Figure 1. Ensure the oral inflation tube cap (a) is replaced on both oral inflation tubes (b), after deflating both chambers.
  • Page 30 Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Fig 8.2 MIRG Elite Twin Packing Instructions Figure 4 shows the part folded jacket Fold down the collar flap G along the dotted line. Fold the lapels H and I across the front, again along the dotted lines.

  • Page 31: Parts List

    Crewsaver - Servicing Manual : MIRG Elite Twin 275 Lifejacket Section Project No : 00164-0104 Parts List Product Description Part Number 60 gram CO Cylinder 10470 United Moulders Mk5i Auto Capsule 1 1042 United Moulders Mk6 Green Automatic Head R 16913...

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