Aqua Lung mikron Technical Maintenance Manual
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Aqua Lung mikron Technical Maintenance Manual

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TECHNICAL MAINTENANCE MANUAL
FIRST STAGE

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Summary of Contents for Aqua Lung mikron

  • Page 1 TECHNICAL MAINTENANCE MANUAL FIRST STAGE...
  • Page 2 CHANGE LOG PAGE # DATE TITLE AND/OR BRIEF DESCRIPTION CHANGE MADE BY October 20, Out of order number sequence Aqua Lung America 2010 May 20, 5,11 Instructions for new body style Aqua Lung America 2013...

  • Page 3: Table Of Contents

    Mikron First Stage Technical Maintenance Manual CONTENTS COPYRIGHT NOTICE ....................4 GENERAL GUIDELINES ....................4 GENERAL CONVENTIONS ..................4 DISASSEMBLY PROCEDURE ..................5 REASSEMBLY PROCEDURE ..................9 ADJUSTING THE FIRST STAGE ................13 FINAL TESTING ......................13 TABLE 1: TROUBLESHOOTING GUIDE ..............14 TABLE 2: TOOL LIST & SERVICE KITS..............15 TABLE 3: TORQUE SPECIFICATIONS ..............

  • Page 4: Copyright Notice

    This manual provides factory prescribed procedures for the correct service and 3. As the regulator is disassembled, reusable components should be repair of the Aqua Lung or Apeks regulator products described in this manual. It segregated and not allowed to intermix with nonreusable parts or parts is not intended to be used as an instructional manual for untrained personnel.

  • Page 5: Disassembly Procedure

    TECHNICAL MAINTENANCE MANUAL ulator hose from the first stage. NOTE: In 2013, there was a change to the Mikron body and in- let fitting. This change moved the filter and o-ring placement to Follow all the guidelines from the body instead of the inlet fitting. For more information on this the Hose Inspection &...
  • Page 6 (6) using the flat brass o-ring tool. NOTE: In 2013, there was a change to the Mikron body and DIN fitting. This change moved the filter and o-ring placement to the body instead of the DIN fitting For more information on this change, see Technical Bulletin #38, Feb 1, 2013.
  • Page 7 Mikron First Stage Technical Maintenance Manual Using your fingers, remove the washer (3) and spring (4). Using an 8mm hex key, turn the HP plug (30) counter-clock- wise to loosen and remove it from the body (20). NOTE: If the washer is not on top of the spring, it can be found stuck on the inside of the adjustment screw.
  • Page 8 Use a small dowel to carefully push the crown (25) out of NOTE: In 2012, a second HP-port was added to the Mikron body. This also included a slight change to the spring retainer and the the body (20). protective sheath.

  • Page 9: Reassembly Procedure

    ® ® Lung product. DO NOT attempt to substitute an Aqua Lung part with another manufacturer’s, regardless of any similar- ity in shape, size or appearance. Doing so may render the product unsafe, and could result in serious injury or death.
  • Page 10 Put the adjustment screw (2) over top of the washer and Press a new diaphragm (7) into the spring retainer (6). Make sure the diaphragm is seated evenly in the spring retainer. spring. Using an 8mm hex key, turn the adjustment screw clockwise until it is flush with the spring retainer (6).
  • Page 11 Mikron First Stage Technical Maintenance Manual Insert the inlet fitting (19) through the yoke (18) being care- REASSEMBLY (Yoke) ful not to dislodge the o-ring (13) and filter (14). With the inlet area of the body (20) facing down, thread the inlet fitting clock-...
  • Page 12 Place the DIN fitting (12) through the DIN handwheel (15) If the filter and o-ring are mounted in the DIN fitting, pro- NOTE: being careful not to dislodge the o-ring (13) and filter (14). ceed directly to step #26. With the inlet area of the body (20) facing down, thread the DIN fitting clockwise up into the body by hand until snug.

  • Page 13: Adjusting The First Stage

    Mikron First Stage Technical Maintenance Manual If no leaks are detected, use a 8mm hex key to adjust the ADJUSTING MP by turning the adjustment screw: Turning the adjustment screw clockwise increases the MP; turning the adjustment screw ADJUSTING MEDIUM PRESSURE (MP) counter-clockwise decreases the MP.
  • Page 14 3. Replace the filter NOTE: This is a partial list of possible problems and recommended treatments. For more infor- mation, refer to the second-stage troubleshooting guide, or contact Aqua Lung Technical Service Department for assistance with problems not described here. CAUTION:...
  • Page 15 Mikron First Stage Technical Maintenance Manual TABLE 2: TOOL LIST & SERVICE KITS PART # DESCRIPTION APPLICATION MP Gauge 111610 MP testing 0-400 psi Brass O-ring 944022 Tool Set Removal and installation of o-rings 103102 O-ring Tool (Plastic) AT79K O-ring Tool Removal of HP o-ring (28) &...
  • Page 16 TABLE 3: TORQUE SPECIFICATIONS PART # DESCRIPTION/KEY ITEM # TORQUE 127874/127583 Spring Retainer (6) 18 ft-lbs (24.5 Nm) 129251/127801 DIN Fitting (12) 18 ft-lbs (24.5 Nm) 129253/127808 Inlet Fitting (19) 18 ft-lbs (24.5 Nm) 129120 HP Plug (30) 45 in-lbs (4.9 Nm) TABLE 4: TEST BENCH SPECIFICATIONS PART # DESCRIPTION/KEY ITEM #...
  • Page 17 Mikron First Stage Technical Maintenance Manual CANTS TABLE 5: RECOMMENDED CLEANERS & LUBRI LUBRICANT/CLEANER APPLICATION SOURCE Christo-Lube ® MCG 111 Aqua Lung, PN 820466, Lubrication Technologies 310 Morton Street Jackson, OH 45640 (800) 477-8704 Lubricant for all o-rings Performance Fluids...

  • Page 18: Procedure A: Cleaning & Lubricating

    When it comes to issues of nitrox safety and compatibility, the concerns lie primarily with the regulator’s first stage as it is subjected to high inlet pressures. High inlet pressures lead to adiabatic compression or heating of the gas. The Aqua Lung or Apeks regulator product described in this manual, when properly cleaned and assembled, is authorized for use with enriched air nitrox (EAN) that does not ex- ceed 40% (EAN 40).

  • Page 19: Maintenance Notes

    Mikron First Stage Technical Maintenance Manual MAINTENANCE NOTES...

  • Page 20: Mikron First Stage Exploded View

    MIKRON 18 ft-lbs 24.5 Nm 45 in-lbs 4.9 Nm 18 ft-lbs 24.5 Nm 40 in-lbs 4.5 Nm 2013 Filter Placement 18 ft-lbs 24.5 Nm Key # .Part # Description Key # .Part # Description ..129022 DIN Adapter Kit, (2013>) 15 ..127803 DIN Handwheel DIN Adapter Kit, (<2012)
  • Page 21 AUTHORIZED TECHNICIAN TECHNICAL MAINTENANCE MANUAL MIKRON FIRST STAGE Aqua Lung America 2340 Cousteau Court, Vista CA 92081 760-597-5000 www.aqualung.com Rev 6/2016...

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