REV 01/10
TEchnical Manual
S.E.a.
(Survival Egress air)
lV-2
Page 1: ...REV 01 10 Technical Manual S E A Survival Egress Air LV 2...
Page 2: ...ting from 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 A note is used to emphasize import...
Page 3: ...nd Stage Reassembly 18 FINAL TESTING 21 Subjective Test 21 Immersion Test 21 Final Assembly 21 Initial Pre Issue Procedures for the SEA MK LV2 HESP 22 Table 1 Troubleshooting Guide for First Stage Val...
Page 4: ...4 SEA LV2 Technical Maintenance Manual CHANGE RECORD Change No Date Title or Description Change made by 001 11 10 6 11 P 25 28 Table 3 List of Tools and Service Kits Updated AQA...
Page 5: ...which may be present 4 As each unit is disassembled reusable components should be segregated and not allowed to intermix with nonreusable parts or parts from other units Delicate parts including inle...
Page 6: ...minants such as moisture or particulate matter may have entered the system 2 Visually inspect the MP hose along its length for any signs of deterioration or damage such as blistering abrasion or corro...
Page 7: ...ced with new DO NOT use a dental pick or any other steel instrument except where instructed First Stage Disassembly 1 Completely open the on off handwheel 10 Make sure all the air is completely draine...
Page 8: ...e crown sealing surface CAUTION Use caution to not damage the fill adapter port 12 If the SEA LV 2 is equipped with a dial type pressure indicator 27 remove the gauge using a 7 8 wrench 13 If equipped...
Page 9: ...ove the spring 35 from the first stage c Turn the indicator body upside down to remove the washer 27d and o ring 27c Discard the o ring If they do not exit the body freely use the o ring removal tool...
Page 10: ...ge Disassembly 1 Using small wire cutters carefully snip the plastic mouth piece clamp 55 and remove the mouthpiece 66 from the box bottom 63 Inspect the mouthpiece to ensure it is free of any tears o...
Page 11: ...ew the exhaust cover 65 8 Remove the exhaust valve 64 by grasping the flap of the valve and pulling straight outward Discard exhaust valve 9 Using the tip of the o ring tool p n 944022 or any type of...
Page 12: ...e first stage body to a torque value of 25 2 ft lbs 3 Install a new lubricated piston shaft o ring 33 and pis ton head o ring 31 onto the piston 32 Closely inspect the edges of new HP seat 34 One edge...
Page 13: ...ody turn the indicator body counterclockwise to engage the screw threads 27e 27b 27f 27g Turn body to engage threads c Using a 1 8 hex key socket tighten the retaining screw by turning it clockwise un...
Page 14: ...que the swivel port plug to 60 3 in lbs 14 Place a new washer 18 onto the valve stem 19 fol lowed by the metal spacer 17 and o ring 16 16 Lubricate the threads of a new HP seat 20 with Christo Lube Us...
Page 15: ...ult the Table 1 Troubleshooting Guide p 23 If a leak is not detected finish filling the cylinder to 3000 psig Turn off the supply line valve and bleed the line pressure Remove the supply line from the...
Page 16: ...valve slowly to control the rate of fill Rapid filling will generate heat and will result in an incomplete fill after the cylinder cools If the cylinder is warm to the touch afterward the fill rate w...
Page 17: ...until it is slightly open to fill the cylinder with approximately 500 PSI 34 5 BAR Turn the fill valve shut and wait 45 60 seconds before proceeding to fill the cylinder any further Repeat this proce...
Page 18: ...el mounted fill valve 9 Open the bleeder valve knob on the MRS III fill hose con nector and vent the pressure from the fill hose 10 Verify that the small pressure indicator on the SEA indi cates zero...
Page 19: ...ody to compress the spring screw the valve body onto the inlet fitting This will fully expose the threads of the poppet 8 Place the feet of the lever 45 into the groove on the face of the valve body 4...
Page 20: ...to prevent it from rotating Attach a 3 4 socket to a torque wrench and torque the inlet fitting 52 to 50 3 in lbs 16 Place the diaphragm 43 over the lever making sure the perimeter of the diaphragm i...
Page 21: ...source to check sealing surfaces assembly sequence and component positioning in order to correct the problem s NOTE Do not confuse bubbles from trapped air with a true leak If there is an air leak bub...
Page 22: ...continue to step 9 b If a leak is detected go to step 15 and continue proce dure c If the unit fails the leak test a second time go to step 16 9 Connect the Charging system to the SEA unit and re cha...
Page 23: ...3 Replace main spring 4 The HP seat 34 is worn or damaged 4 Replace HP seat 5 The HP crown sealing surface is damaged 5 Replace body 36 Low IP 1 Main spring 35 is weakened or damaged 1 Replace spring...
Page 24: ...reinstall poppet spring 5 The IP hose is clogged or obstructed 5 Clean or replace hose External Air Leak Immersion Test 1 The IP hose is loose 1 Tighten hose to 45 in lbs at second stage fitting 2 The...
Page 25: ...and filling 944022 O ring Tool Kit Removing and installation of o rings 10 102 400 O ring Tool Internal hose o ring 16 100188 Micra Retaining Ring Wrench Retaining ring removal and installation 10739...
Page 26: ...w Illumination Sealing surface spring inspection 9 43001 9 43004 9 43226 3 8 Socket 9 16 Socket 3 4 Socket Burst plug 6 3 8 Fill adapter port 23 9 16 Bonnet 13 and 2nd stage inlet fitting 52 3 4 9 43...
Page 27: ...Nut Driver Lock nut 44 5682A28 2 Phillips Screwdriver MRS III 111100 Circlip Pliers MRS III 9 44363 3 8 Drive Flex Handle Removal of parts 053035 Valve Handle Retainer Tool Pin Type Pressure Indicato...
Page 28: ...for use w existing vice 100397 HABD SEA Table Mount Cylinder Vise SEA cylinder removal installation N A Torque Wrench ft lbs in lbs Apply torque to parts listed in Table 4 Torque Specifications p 24 T...
Page 29: ...IP 135 20 psi at 5 SCFM 5 inches H20 maximum Purge Flow IP 135 20 psi 5 0 SCFM flow rate minimum Table 6 Recommended Cleaners and Lubricants LUBRICANT CLEANER APPLICATION SOURCE Christo Lube MCG 111...
Page 30: ...se only a soft nylon toothbrush to scrub away any deposits Rinse in fresh water and thoroughly blow dry using low pressure filtered air CAUTION Do not place plastic and rubber parts in acid solutions...
Page 31: ...20 pk 34 106726 HP Seat 35 106771 Spring 36 108312 First stage body 37 820316 O ring 10 pk 38a 079105 Cylinder 1 5 cu ft 38b 079120 Cylinder 2 0 cu ft 38c 079125 Cylinder 2 5 cu ft 39 108367 Plug Bla...
Page 32: ...61 100104 Purge Cover 43 100181 Diaphragm 44 102510 Locknut 45 100923 Lever 46 104129 Washer 47 100945 Valve Body 48 104134 Poppet Bearing Key Part Description Key Part Description 49 104127 Spring 5...
Page 33: ...33 Maintenance Notes...
Page 34: ...2010Aqua Lung International S E A LV2 2340 Cousteau Court Vista CA 92081 Phone 760 597 5000 Fax 760 597 4900 www aqualung com militaryandprofessional P N 108448 REV 01 10...
