Related Manuals for Aqua Lung LPIS
Summary of Contents for Aqua Lung LPIS
- Page 1 LOW PRESSURE INFLATION SYSTEM (LPIS) DRY SUIT INFLATION SYSTEM (DSIS) TECHNICAL MANUAL Rev. 6/17...
- Page 2 Aqua Lung America. It may not be distributed through the internet or computer bulletin board systems without prior consent in writing from Aqua Lung America.
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Page 3: Table Of Contents
Table 2: List of Tools and Service Kits ...................14 Table 3: Torque Specifications ......................17 Table 4: Test Bench Specifications ....................17 Table 5: Recommended Cleaners and Lubricants ................17 Procedure A: Cleaning and Lubricating ..................18 LPIS / DSIS Exploded View ......................19 Maintenance Notes ..........................20... -
Page 4: Introduction
Factory Authorized training turn the part clockwise. through an Aqua Lung Service & Repair Seminar. If you do not 2. When instructed to “OPEN” the handwheel, turn the completely understand all of the procedures outlined in this manual, handwheel counter-clockwise. -
Page 5: Disassembly Procedure
DISASSEMBLY PROCEDURE 4. Using a 9/16" deep socket and flex wrench, unscrew the swivel relief plug assy (17) from the first stage body NOTE: Before performing any disassembly, refer to the exploded parts drawing, which references all mandatory (32). Separate the MP hose replacement parts. - Page 6 LPIS / DSIS Technical Manual 12. Remove the o-ring (25) 8. Unscrew the safety plug from the bonnet (24). (11) from the first stage using a 3/8” socket and flex wrench. 9. Unscrew the handwheel retainer (18) using the modified 13.
- Page 7 21. Separate the piston (4) from the retainer cap (2). Remove 17. Using a 9/16” socket and flex wrench, unscrew the fill port the spring (7) from the first stage body (32). (36) from the first stage body (32). Remove the fill port pin (37) from the fill port.
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Page 8: Reassembly Procedure
5 years. For more information reference Aqua Lung Technical Bulletin: Hydro Testing #09-001. This information can be found on the Aqua Lung Military and Professional website at www.aqualung.com/militaryandprofessional 1. Install o-ring (33) over the threads on the first stage body 4. - Page 9 9. Install o-ring (35) onto the pressure gauge (38). Screw the 5. Insert the shaft of the piston (4) into the spring (7). Press pressure gauge into the upper HP port on the first stage body down on the retainer cap (2) and tighten the cap onto the (32) until hand tight.
- Page 10 LPIS / DSIS Technical Manual 12. Using the squared end of the stem (30), screw the seat 17. Place the handwheel (21) over the indicator ring (23). Place & disc retainer into the first stage body (32). Leave the stem the spring (20) into the handwheel, followed by the washer (19).
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Page 11: Swivel Relief Test Procedure
21. Place a small amount of 25. Increase the MP on the first stage regulator to 170 +/- 5 PSI Christo-Lube onto the threads (11.7 +/- 0.3 BAR). During this time the MP should remain stable of the relief valve screw (17a). and no air should leak past the relief holes on the swivel relief Use your fingers to install the plug (17). -
Page 12: Final Testing Procedure
3. Attach the SCUBA fill adapter to the fill port and slowly fill the DSIS / LPIS to 3000 PSI (207 BAR). Do not exceed a fill Pressure Drop Test rate of 500 PSI (34 BAR) per minute. Secure the MP hose (13) and test gauge during the fill process. - Page 13 3. Relief valve (17c) is worn or damaged. 3. Replace relief valve (17c) NOTE: This is a partial list of problems and recommended treatments. For more information contact your Aqua Lung Technical Service Department for assistance with problems not described in the Table 1 Troubleshooting Guide.
- Page 14 SEA MK Tool Kit (Tools in addition to those listed below are 108342 Tools Kit for servicing LPIS / DSIS and SEA MK / LV2 included in the tool kit. Additional tools are for SEA MK & LV2 service). Tool Pouch...
- Page 15 TABLE 2: LIST OF TOOLS AND SERVICE KITS (CONTINUED) PART # DESCRIPTION APPLICATION Magnifier 9-BA819008 Inspection of parts w/Illumination Christo-Lube 820466 Parts lubrication MCG 111 2 oz. Screwdriver 947448 Medium Blade Removal / Installation of Handwheel Retainer (18) (Modified) Strap 54325A22 Retains Cylinder (39) during removal / installation of First Stage Body (32) Wrench...
- Page 16 LPIS / DSIS Technical Manual TABLE 2: LIST OF TOOLS AND SERVICE KITS (CONTINUED) PART # DESCRIPTION APPLICATION 5 mm Hex Removal / Installation of Relief Valve Screw (17a) 8367A23 Bit Socket (Not included in 108342 SEA MK Tool Kit)
- Page 17 210 psi maximum to be accepted. TABLE 5: 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 18: Procedure A: Cleaning And Lubricating
LPIS / DSIS Technical Manual PROCEDURE A: CLEANING AND LUBRICATING Cleaning Brass & Stainless Steel Parts 1. Pre-clean in warm, soapy water* using a nylon bristle tooth brush. 2. Thoroughly clean parts in an ultrasonic cleaner filled with soapy water. If there are stubborn deposits, household white distilled vinegar (acetic acid) in an ultrasonic cleaner will work well. -
Page 19: Lpis / Dsis Exploded View
LPIS / DSIS EXPLODED VIEW 45 in-lbs (5.1 Nm) 60 in-lbs 45 in-lbs (6.8 Nm) (5.1 Nm) 90 in-lbs (10.2 Nm) 90 in-lbs 25 ft-lbs (10.2 Nm) (33.9 Nm) 90 in-lbs (10.2 Nm) Key # Part # Description Key # Part # Description ..108603... -
Page 20: Maintenance Notes
LPIS / DSIS Technical Manual MAINTENANCE NOTES... - Page 21 MAINTENANCE NOTES...
- Page 22 LPIS / DSIS Technical Manual MAINTENANCE NOTES...
- Page 23 MAINTENANCE NOTES...
- Page 24 LOW PRESSURE INFLATION SYSTEM (LPIS) DRY SUIT INFLATION SYSTEM (DSIS) 2340 Cousteau Court • Vista, CA 92081 Phone (760) 597-5000 • Fax (760) 597-4900 www.aqualung.com/militaryandprofessional ©2017 Aqua Lung International...
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