Aqua Lung Micra ADJ Service & Repair Manual
  1. Manuals
  2. Brands
  3. Aqua Lung Manuals
  4. Diving Instrument
  5. Micra ADJ
  6. Service & repair manual

Aqua Lung Micra ADJ Service & Repair Manual

Second stage regulator
Hide thumbs
Table of Contents

Advertisement

Quick Links

®
Authorized Dealer
SERVICE & REPAIR MANUAL
Micra ADJ
Second Stage Regulator
Copyright ©1999 Aqua Lung America, Inc.
Doc. No. 1008-89

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Micra ADJ and is the answer not in the manual?

Questions and answers

Related Manuals for Aqua Lung Micra ADJ

Summary of Contents for Aqua Lung Micra ADJ

  • Page 1 ® Authorized Dealer SERVICE & REPAIR MANUAL Micra ADJ Second Stage Regulator Copyright ©1999 Aqua Lung America, Inc. Doc. No. 1008-89...

  • Page 2: Table Of Contents

    Table of Contents Introduction ....................3 Warnings, Cautions, & Notes ................... 3 Scheduled Service ......................3 General Guidelines ......................3 Initial Inspection Procedure ................4 External Inspection ......................4 Pressure Test ........................4 Disassembly Procedures ................5 Valve Disassembly Procedure - Revision A ..............6 Valve Disassembly Procedure - Revision B ..............

  • Page 3: Introduction

    Doc. #1008-89 Service & Repair Manual - Micra ADJ Second Stage GENERAL GUIDELINES Introduction In order to correctly perform the procedures This manual provides factory prescribed proce- outlined in this manual, it is important to follow dures for the correct service and repair of the Micra each step exactly in the order given.

  • Page 4: Initial Inspection Procedure

    Micra ADJ Second Stage Service & Repair Manual Initial Inspection Procedure EXTERNAL INSPECTION Visually inspect the first stage filter to check for any signs that contaminants, such as moisture, rust, aluminum oxide, or charcoal may have entered the LP hose and second stage.

  • Page 5: Disassembly Procedures

    Micra ADJ Second Stage Service & Repair Manual Disassembly Procedures NOTE: Before performing any disassembly, refer to the schematic drawing, which references all mandatory replace- ment parts. These parts should be replaced with new, and must not be reused under any circumstances - regardless of the age of the regulator or how much use it has received since it was last serviced.

  • Page 6: Valve Disassembly Procedure - Revision A

    Micra ADJ Second Stage Service & Repair Manual the pin has exited, grasp the free end with pliers and pull to remove it completely. Examine the condition of the pin, and discard if it is found to be bent or damaged.

  • Page 7: Valve Disassembly Procedure - Revision B

    Micra ADJ Second Stage Service & Repair Manual Window Above Rail out, unless corrosion or salt buildup is present. Set the pin aside, and slowly release pressure on the retaining sleeve to Closed Pin Guide prevent the sudden ejection of parts.
  • Page 8 Micra ADJ Second Stage Service & Repair Manual unless corrosion or salt buildup is present. Set the pin aside, and slowly release pressure on the tool to prevent the sudden ejection of parts. Extended Rail & Pin Guides NOTE: If necessary, the Seat Extraction Tool (P/N 1094-36) or similar probe can be used to press out the pin.
  • Page 9 (see Fig. 7b). 31. Remove and discard the two exhaust valve diaphragms(6). This concludes the disassembly of the Micra ADJ sec- ond stage. Refer directly to Procedure A and Table A, Fig. 7a - Exhaust Cover Removal - Step 1 titled Cleaning &...

  • Page 10: Reassembly Procedures

    Micra ADJ Second Stage Service & Repair Manual Reassembly Procedures NOTE: Before performing any reassembly, it is important to inspect all parts, both new and those that are being reused, to ensure that every part and component is perfectly clean and free of any dust, corrosion, or blemishes.
  • Page 11 12 o’clock. 14. While holding the valve body standing vertical, place the slotted end of the Micra ADJ Lever Installation Tool inside the valve body, directly over the washer. Carefully align the tool so that one of the open channels is positioned above the recessed hole at 6 o’clock (see Fig.
  • Page 12 Micra ADJ Second Stage Service & Repair Manual the head of the pin is seated completely inside the recessed Indexed Feature opening of the valve body. Set the tool aside. Indexed Feature NOTE: The valve body and box bottom are both indexed with four flat surfaces where their inlet portions mate.
  • Page 13 Micra ADJ Second Stage Service & Repair Manual 19. Insert the slotted end of the Lever Installation Tool into the open end of the valve body and over the pin, so that it is seated directly over the washer. While holding the box bottom with valve body secure, press the tool inward until the poppet spring is fully compressed, and hold.
  • Page 14 Micra ADJ Second Stage Service & Repair Manual 27. Ensure that the adjustment screw is turned completely counter-clockwise into the retaining sleeve, and fit the cap nut(31) over its end. While holding the adjustment screw secure, thread the cap nut clockwise onto the end of the valve body until flush with the box bottom.

  • Page 15: Final Adjustment & Testing Procedures

    Conshelf SE Service Manual (P/N 7802-08) or the SEA Service Manual (P/N 7802-12) before attempting to perform the adjustment and testing of the Micra ADJ second stage. Thread the male fitting of the LP hose into the preferred low pressure port of the first stage, and apply a torque wrench with n"...
  • Page 16 Micra ADJ Second Stage Service & Repair Manual Turn the second stage adjustment knob completely out counter-clockwise, and set the vane adjustment switch to the "MIN" position (see Fig. 25). Connect the first stage to a filtered air source of 3,000 psi.

  • Page 17: Second Stage Air Flow Test

    Micra ADJ Second Stage Service & Repair Manual NOTE: If leakage persists after performing the above proce- dures, refer to Table 1, Troubleshooting, and disassemble as required to remedy the problem. 11. Turn the valve of the air source completely shut, and purge the second stage to depressurize the system.

  • Page 18: External Leak Test

    When exhaling, there should be no fluttering or sticking of the exhalation valve. If any of these problems occur, refer to Table 1 - Troubleshooting. This concludes annual service procedures for the Micra ADJ © 1997 U.S. Divers Co., Inc.

  • Page 19: Troubleshooting Guide

    Micra ADJ Second Stage Service & Repair Manual Table 1 Troubleshooting Guide Micra ADJ Second-Stage SYMPTOM POSSIBLE CAUSE TREATMENT Leakage or freeflow from 1. High first-stage intermediate pressure. 1. Refer to first-stage Troubleshoot- (should be 140 ±5 psi) second stage ing Guide.
  • Page 20 Micra ADJ Second Stage Service & Repair Manual Table 2 Recommended Tool List PART NO. DESCRIPTION APPLICATION 7803-00 Aqua-Lung Service Manual All Aqua-Lung regulators 1116-00 I.P. test gauge Intermediate pressure testing 0-120 inch-lbs torque wrench Small fittings 9440-22 O-ring tools O-ring removal &...
  • Page 21 Micra ADJ Second Stage Service & Repair Manual Table 4 Torque Specifications PART NUMBER DESCRIPTION / KEY NUMBER TORQUE 1005-35 LP Hose Female Fitting / 8 40 (±3) inch-lbs 1001-36 Hex Nut / 13 50 (±5) inch-lbs 1008-41 Cap Nut / 31...

  • Page 22: Procedure A - Cleaning & Lubrication

    Micra ADJ Second Stage Service & Repair Manual Procedure A Cleaning & Lubrication (All Aqua Lung Regulators) ™ 1. Acid Bath - Aqua Lung strongly recommends ChromeSafe regulator cleaner (P/N 0201-05) for clean- ™ ing all reusable brass and stainless steel parts. ChromeSafe...
  • Page 23 Micra ADJ Second Stage Service & Repair Manual Table A Recommended Lubricants & Cleaners (All Aqua Lung Regulators) LUBRICANT / CLEANER APPLICATION SOURCE Christo-Lube ® All O-rings seals; cylinder valve threads Lubrication Technologies (preferred for high pressure DIN systems) 310 Morton Street...
  • Page 24 Micra ADJ Second Stage Service & Repair Manual TECHNICIAN'S NOTES © 1997 U.S. Divers Co., Inc.

  • Page 25: Second Stage Schematic

    Micra ADJ Second Stage Service & Repair Manual Second Stage Schematic * NOTE: The Lever Retaining Sleeve (P/N 1008-44) has undergone a change revision. Be sure to correctly identify the part before reinstalling, and replace with new if found to be a Revision A part.

Table of Contents

Save PDF