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Related Manuals for Aqua Lung ABS SECOND STAGE
Summary of Contents for Aqua Lung ABS SECOND STAGE
- Page 1 Authorized Technician TECHNICAL MAINTENANCE MANUAL ABS SECOND STAGE...
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Page 2: Table Of Contents
CONTENTS Copyright Notice ......................3 General Guidelines ......................3 General Conventions .....................3 DISASSEMBLY PROCEDURES ...................4 REASSEMBLY PROCEDURE ..................6 VALVE ADJUSTMENT PROCEDURES ................9 FINAL ASSEMBLY & TESTING PROCEDURES ............10 Table 1: Troubleshooting Guide ...................12 Table 2: List of Tools and Service Kits .................13 Table 3: Standard Parts Replacement Schedule ............14 Table 4: Recommended Cleaners and Lubricants ............14 Procedure A: Cleaning and Lubricating ...............15... -
Page 3: Copyright Notice
ABS Second Stage Technical Maintenance Manual... -
Page 4: Disassembly Procedures
DISASSEMBLY PROCEDURES 4. Using the adjustable spanner wrench (p/n 129198), re- move the retaining ring (14). Remove the purge cover (15). NOTE: Before performing any disassembly, refer to the exploded parts drawing, which references all mandatory replacement parts. These parts should be replaced with new, and must not be reused under any circumstances –... - Page 5 ABS Second Stage Technical Maintenance Manual 12. Stand the valve assembly vertical on the head of the NOTE: Because the crown is o-ring sealed, poppet (7), with the lever facing up, and depress the valve it will not freely exit the valve body after it body to expose the locknut (1).
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Page 6: Reassembly Procedure
2. Install the exhaust grid (10) by inserting the upper tabs NOTE: Aqua Lung no longer requires mandatory into the casing. Push both sides in, followed by pressing in replacement of the exhaust valves. As long as the lower tabs. - Page 7 ABS Second Stage Technical Maintenance Manual 6. Apply a medium blade screwdriver to the slotted head of 9. Press the new LP seat (8) into the cavity in the head of the the adjustable crown (21), and turn the crown clockwise to poppet (7), with the smooth side facing out.
- Page 8 Do not proceed to reassemble the ABS second stage any further until first following the adjustment procedures OUTLET for the valve assembly outlined in the following section.
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Page 9: Valve Adjustment Procedures
Leave 1-2mm of play in lever 2. The Aqua Lung inling tool (p/n 100190) can be configured for a slotted or hex type crown orifice. Pull back the shaft of the tool to retract the adjusting stem. Insert the threaded inlet fitting of the ABS valve assembly into the female threaded... -
Page 10: Final Assembly & Testing Procedures
FINAL ASSEMBLY & TESTING 5. Fit the purge cover (15) into the box bottom (19) and thread on the cover ring (14) by hand or snug it up using PROCEDURES the spanner tool (129198). 1. Insert the valve body (4) and lever assembly inside the box bottom (19) with the lever (3) facing up. - Page 11 ABS Second Stage Technical Maintenance Manual Second Stage Air Flow Test Subjective Breathing Test 1. Depress the purge cover fully to ensure that an adequate 1. Connect the first stage regulator to a calibrated test bench volume of air needed to clear the second stage flows through and pressurize the system to 3000 (±100) psi.
- Page 12 Table 1: Troubleshooting Guide SYMPTOM POSSIBLE CAUSE TREATMENT 1. High first stage MP 1. Refer to First Stage Troubleshooting (should be 135-140 psi). Guide 2. LP seat (8) is worn or damaged. 2. Replace the seat 3. Reset the crown and/or locknut to 3.
- Page 13 ABS Second Stage Technical Maintenance Manual Table 2: List of Tools and Service Kits PART # DESCRIPTION APPLICATION In-line Adjustment Tool 100190 Final adjustment and tuning In-line Test Gauge 111605 MP testing Magnifier with Illumination Sealing surface inspection Seat Extraction/Installation Tool...
- Page 14 20, 27 O-ring 820015 O-ring 104913 Clamp Table 4: Recommended Cleaners and Lubricants LUBRICANT/CLEANER APPLICATION SOURCE Aqua Lung, PN 820466, or Lubrication Technologies ® Christo-Lube MCG 111 All o-rings 310 Morton Street Jackson, OH 45640 (800) 477-8704 CAUTION: Silicone rubber requires no lubrication or preservative treatment.
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Page 15: Procedure A: Cleaning And 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 produc condensed hydrocarbons (compressor oils) from the inside passageways of the first stage. - Page 16 Table 5: Torque Specifications PART # DESCRIPTION / KEY ITEM # TORQUE APF124566 LP Hose Female Fitting (26) 40±3 in/lbs 104106 Inlet Fitting (12) 45±3 in/lbs Table 6: Test Bench Specifications TEST CONDITION SPECIFICATIONS Leak Test Inlet 2500 - 3000 (± 100 psig) No leaks allowed Inlet 2500 - 3000 (±...
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Page 17: Maintenance Notes
ABS Second Stage Technical Maintenance Manual Maintenance Notes... -
Page 18: Abs Octopus
ABS Octopus Key # Part # Description Key # .Part # Description ..900010 Overhaul Parts Kit 14 ..116922 Cover Ring 15 ..116929 Purge Cover 1 ..102510 Locknut 16 ..116923 Diaphragm Retainer 2 ..104129 Washer 17 ..107818 Diaphragm Washer 3 ..116928 Lever 18 ..116930 Diaphragm... - Page 19 Authorized Technician TECHNICAL MAINTENANCE MANUAL ABS SECOND STAGE Aqua Lung America 2340 Cousteau Court, Vista CA 92081 760-597-5000 www.aqualung.com © Aqua Lung USA Rev 2/2006...
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