Aqua Lung LEGEND LUX Service Manual Download Page 4

 

                 Legend LX LUX second stage service manual   

GENERAL INSTRUCTIONS 

 

1.  In order to carry out the procedures described in this manual correctly it is important that you follow the steps in the exact 

order indicated. Read the manual through completely so that you become familiar with all the procedures, the special tools and 
the replacement parts, before starting to disassemble the product. Keep this manual open near to you so that you can refer to 
it step by step. Do not rely on your memory..  

 

2.  All servicing and repair procedures should be carried out in a workshop that is clean, well lit, easy to access and specially 

fitted for the purpose. 

 

3.  The regulator body should never be directly held in the jaws of a vice. To hold the body, screw the tool 006230 into the HP port 

and then grip the tool with the vice. 

 
4.  Once the regulator has been disassembled, the re-usable components should be separated from the components that need to 

be replaced. Fragile items with seats or crowns with critical sealing surfaces should be separated and protected during 
servicing in order to prevent any damage. 

 

5.  Use only spare parts from Aqualung service kits. Never replace an Aqualung part with one from another manufacturer, even if 

it appears similar. 

 

6.  Never re-use regulator parts which should be replaced on the pretext that the regulator has seen little use since its 

manufacture or since its last service.  

 

7.  When reassembling, check that the torque used conforms with that shown in Table 4, Torque. Some parts can be irretrievably 

damaged if the acceptable torque is exceeded. 

 

 
 
 

GENERAL CONVENTIONS 

 
The conventions described below define the actions to be carried out when an instruction is given. 
 
 

1. 

Unscrew

: to unscrew a threaded part, turn it anti-clockwise.  

 
2. 

Screw

: to screw a threaded part, turn it  clockwise. 

 

3. 

Remove the O-ring

: To remove an O-ring follow the method below, using the special tool provided for this purpose. Any tool 

that could damage the O-ring should be avoided. In every case, replace the O-ring removed with a new one. 

 

Press simultaneously on the 
two sides of the O-ring in 
order to form an ‘eye’. . 
Insert the special tool into this 
eye to remove the O-ring.   

 

 
 
 
4. The 

acronyms 

used: 

LP

: Low Pressure 

MP

: Medium Pressure 

HP

: High Pressure 

 

5.  Numbers in brackets indicate the part number of the component shown on the exploded view attached. 

 
 

 
 

Service manual Legend LX – LUX second stage 

Rev. 12/2011

                      

 

4

 

 

Summary of Contents for LEGEND LUX

Page 1: ...Legend LX LUX second stage service manual Service Manual Legend LX LUX second stage Rev 12 2011 1 Service Manual LEGEND LX LX SUPREME LEGEND LUX LUX SUPREME...

Page 2: ...NS 4 DISASSEMBLY PROCEDURE 4 REASSEMBLY PROCEDURE 7 SECOND STAGE ADJUSTMENT 9 FINAL ASSEMBLY 10 Table 1 Troubleshooting guide 11 Table 2 List of tools and service kits 12 Table 3 Recommended cleaners...

Page 3: ...ld contact an Aqualung service consultant before undertaking any operation WARNINGS ATTENTION NOTES Certain icons have been used to facilitate the reading and understanding of this manual They have th...

Page 4: ...Use only spare parts from Aqualung service kits Never replace an Aqualung part with one from another manufacturer even if it appears similar 6 Never re use regulator parts which should be replaced on...

Page 5: ...since its manufacture or since its last service 4 Hold the second stage as shown on the picture Attention Use only the special tool when removing O rings in order to avoid damaging the seal recess Th...

Page 6: ...129639 9 Pulling out the slot remove the diaphragm ring Remove the diaphragm 129657 6 1 Push the pin locker out 6 2 Hold the pin locker by its head to clear the hole of the casing 6 3 Rotate the front...

Page 7: ...l anti clockwise to the end Hold the lever down against the insert and push the insert assembly out of the casing 12 Remove the spacer 129652 and the o ring 124706 13 Remove the red Venturi baffle 129...

Page 8: ...ail to remove the seat and the small O ring of the shuttle valve 17 Remove the o ring AP1438 18 Unscrew the seat 6 or 7 turns using a screwdriver Push the plastic part of tool 116236 into the insert t...

Page 9: ...on page 21 CLEANING OF THE VALVE SPINDLE 129626 The over molded Valve Spindle 129626 must be cleaned using the NETALU or OAKITE diluted at 25 in an ultrasonic bath at 40 C for 5 minutes The over molde...

Page 10: ...the shuttle valve NOTE Make sure the seat is properly pressed against the shuttle valve If necessary perform a rotation of your thumb pressing the seat 3 Insert the spring into the balancing chamber C...

Page 11: ...groove 129628 9 Using a 4mm Allen key fit fully the screw 129632 into the screw 129628 Adjust as follows a Legend LX and Legend LUX Unscrew two and half turns b Legend LX Supreme and LUX Supreme Unscr...

Page 12: ...fit the Venturi baffle 129644 onto the valve spindle groove 13 While holding the lever down fit the valve spindle inside the casing Make sure that the flats on the insert fit into the flats on the ca...

Page 13: ...5 m kg 16 Fit a new lubricated O ring 444243 onto the adjustable seat AP2033 Fit the seat threaded part first into the valve spindle and push it fully home using a screwdriver Make sure the MBS mechan...

Page 14: ...Slide tool 129727 flat side along the top edge of the casing The tool must press or touch on the lever without causing an airflow 21 Fit the diaphragm washer 129656 into the diaphragm 129657 22 Set th...

Page 15: ...ion is on top Fit the mouthpiece strap into its groove The collar lever should point down on the hose side 25 1 Set the Front cover 25 2 Pull up the pin locker 25 3 Rotate the cover clockwise 25 4 Rel...

Page 16: ...he plug 129633 or 129749 or 129723 Screw turn the adjusting screw if the opening effort is too low Unscrew turn the adjusting screw if the opening effort is too high Check again the openng effort If i...

Page 17: ...lever adjustment is too low 2 Readjust the lever and the valve Insufficient purge flow or work of breathing too high 3 MP hose obstructed 3 Clean or replace the hose 4 Le lever 129178 is bent 4 Repla...

Page 18: ...8 x 150mm crown N a 122041 Spacer Must be fitted on the 122046 tool N a 122046 Crown adjustment tool Crown adjustment 100190 N C 19mm flat spanner Heat exchanger nut N a N C Torque wrench 0 5 m kg He...

Page 19: ...uted with hot water Degreases brass and stainless steel parts general cleaning of plastic and rubber parts Household stores Disinfectant STERANIOS 2 Disinfectant for all plastic and metal parts Aqualu...

Page 20: ...ning parts for Nitrox O2 use 1 Metal parts Pre clean by soaking in NETALU diluted to 25 2 Ultrasonic cleaning in Promoclean TP108 diluted at 5 3 Rinse in demineralised water Soak for 10 min 4 Dry in t...

Page 21: ...SPECIFICATIONS Leak Test Immersion in water MP supply 8 5 bar 0 5 bar No bubble Medium Pressure 160 bar working pressure 200 bar MP 8 5 bar 0 5 bar All Legend models Opening effort 160 bar working pr...

Page 22: ...Legend LX LUX second stage service manual Maintenance Notes Service manual Legend LX LUX second stage Rev 12 2011 22...

Page 23: ...Legend LX LUX second stage service manual Legend LX Exploded view Service Manual Legend LX LUX second stage Rev 12 2011 23...

Page 24: ...Legend LX LUX second stage service manual Legend LX Supreme exploded view Service manual Legend LX LUX second stage Rev 12 2011 24...

Page 25: ...Legend LX LUX second stage service manual Legend LUX Exploded view Service Manual Legend LX LUX second stage Rev 12 2011 25...

Page 26: ...Legend LX LUX second stage service manual Legend LUX Supreme exploded view Service manual Legend LX LUX second stage Rev 12 2011 26...

Page 27: ...1ere Avenue 14e rue BP 148 06513 CARROS cedex France 00 33 0 4 92 08 28 88 FAX 00 33 0 4 92 08 28 99 Service Manual Legend LX LUX second stage Rev 12 2011 27...

Page 28: ...Legend LX LUX second stage service manual Service manual Legend LX LUX second stage Rev 12 2011 28...

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