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Summary of Contents for Apeks TX Series
- Page 1 TECHNICAL MAINTENANCE MANUAL TECHNICAL MAINTENANCE MANUAL XXXXXXXXXXXXXXX TX Second Stage...
- Page 2 CHANGE RECORD Page # Change made by Rev. Date Title and/or brief description 12/08 New tool added, lever height Aqua Lung adjustment tool PN AT69...
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Page 3: Table Of Contents
TX Second Stage Technical Maintenance Manual CONTENTS Copyright Notice ......................4 General Guidelines ......................4 General Conventions ....................4 DISASSEMBLY PROCEDURES ...................5 REASSEMBLY PROCEDURES ..................7 FINAL ADJUSTMENT PROCEDURES ..............11 FINAL ASSEMBLY ..................... 11 FINAL TESTING ......................12 Table 1: Troubleshooting Guide ................13 Table 2: List of Tools and Service Kits .............. -
Page 4: Copyright Notice
O2 (EAN40), the regulator must be properly cleaned, lubricated are used to emphasize important points, tips NOTES and assembled using genuine Aqua Lung® or Apeks replacement and reminders. parts. In addition, assembly must be carried out in a clean environment using powderless, latex gloves or equivalent. For... -
Page 5: Disassembly Procedures
TX Second Stage Technical Maintenance Manual Disassembly Using the Apeks front cover tool (pn AT31), unscrew the case cover (7). To remove the purge button and spring (5 & 6), squeeze two opposite tabs inward. NOTE: Before performing any disassembly, refer... - Page 6 Grasp the venturi lever (16) and pull it out of the case (10). Insert a small wooden dowel into the threaded Remove the o-ring (12) from the venturi lever. end of the valve spindle and push out the shuttle valve assembly (25-29).
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Page 7: Reassembly Procedures
TX Second Stage Technical Maintenance Manual This Ends Disassembly If the lever (21) is to be removed, carefully pull one of the legs out of the valve spindle and then ease the second leg out. Before starting reassembly, perform parts cleaning and lubrication according to the procedures outlined in ‘Cleaning &... - Page 8 Install the o-ring (3) onto the valve spindle (20). Install the lever (21) in correct orientation. With air outlet hole facing you and threaded end to the right, lever should be pointing to the left. Install the o-ring (27) onto the stem of the shuttle valve (28). Push the MP seat (29) into the front of the shuttle valve.
- Page 9 TX Second Stage Technical Maintenance Manual Install the adjusting knob (23) into the valve spindle (20). There should now be spring tension on the lever. Continue Slide the o-ring (3) down the threaded end of the valve to screw clockwise until the holes for the spring pin are spindle (20).
- Page 10 While holding the rim of the case (10) at eye level, use Thread the case cover (7) onto the case (10) by hand until a medium blade screwdriver or 5mm hex key to turn the snug. Using the cover tool (pn AT31) tighten the cover until it seat (18) clockwise until the lever drops about 4mm below stops.
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Page 11: Final Adjustment Procedures
TX Second Stage Technical Maintenance Manual Final Adjustment Procedures 2nd Stage Opening Effort Test WARNING: Compressed air can be highly explosive and is dangerous if misused. Ensure cylinder valve With the regulator still pressurized, slowly open the flowmeter is opened slowly. Use Eye and Ear Personal Protec- control knob (start vacuum) while watching both the tive Equipment when performing any tests involving magnehelic gauge and the MP gauge. -
Page 12: Final Testing
FINAL TESTING PROCEDURES External Leak Test 1. After disconnecting the regulator from the test bench, connect it to a scuba cylinder filled to approximately 3000 psi (206 bar). Open the cylinder valve to pressurize the regulator and sub- merge the entire system in a test tank of clean water. 2. - Page 13 TX Second Stage Technical Maintenance Manual Table 1: Troubleshooting Guide SYMPTOM POSSIBLE CAUSE TREATMENT 1. Excessively high first-stage 1. Refer to first-stage intermediate pressure. Troubleshooting Guide. 2. MP Seat (29) damaged or worn. 2. Replace Rubber Seating. 3. Reset Seat preliminary 3.
- Page 14 Table 2: List of Tools and Service Kits PART # DESCRIPTION APPLICATION In-line Adjustment 100190 Final adjustment and tuning Tool In-line Test 111605 MP testing Gauge Seat 109437 Installation Seat (18) removal/replacement Tool O-ring Tool 944022 Removing and installation of o-rings TX/ATX Cover AT31 Assembly/disassembly of case cover (7)
- Page 15 TX Second Stage Technical Maintenance Manual Table 3: Torque Specifications PART # DESCRIPTION / KEY ITEM # TORQUE AP5002 Heat Exchanger / Spacer (2) 45 in/lbs / 5 Nm AP0203 Hose 45 in/lbs / 5 Nm Table 4: Test Bench Specifications TEST CONDITION SPECIFICATION...
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Page 16: Procedure A: Cleaning And Lubricating
When it comes to issues of nitrox safety and compatibility, the concerns lie primarily with the 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 exceed 40% (EAN 40). -
Page 17: Maintenance Notes
Maintenance Notes... -
Page 18: Tx50 Exploded View
TX50 NOTE: Early versions of the TX range used a separate Heat Exchanger and Spindle Nut. 45 in/lbs 5 Nm Key # .Part # Description Key # .Part # Description ..AP0510 TX50, Second Stage w/ 1/2" Hose 19 ..AP1154 O-ring ..AP0219/AA Universal Second Stage Repair Kit 20 ..AP2028 Valve Spindle, TX50... - Page 19 TX SECOND STAGE REGULATOR Aqua Lung America Aqua Lung America 2340 Cousteau Court, Vista CA 92081 2340 Cousteau Court, Vista CA 92081 760-597-5000 760-597-5000 www.aqualung.com www.aqualung.com Rev. 06/2008 Rev. 12/2008 © 2008 Apeks Marine Equipment Ltd. © 2008 Apeks Marine Equipment Ltd.
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