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XS Scuba MultiMax Breathable Inflator Service Manual

 

 

 

NOTE: When threading the valve housing (35) on 

to the valve assembly tool, if the square portion of the 
stem (32) does not align with the square hole in the 
valve insert (36), it will unseat the valve insert (36).  

 

 
If this happens, remover the valve insert (36), rotate 
the stem (32) with a small pair of pliers so that the 
square portion of the stem (32), is parallel with the slot 
of the valve housing (35). See image below.  
 

 

 
Now you can add the white valve insert (36). Make 
sure that it is seated all the way down on to the valve 
housing (35). 

 

g.  Install the lever (37).
 
 

i. The lever (37) MUST be oriented opposite  

 

the oval hole. 

 

 

CAUTION: When installing the lever (37), it must 

be oriented opposite the oval outlet hole.

 
h. Place washer (38) over the threads.
 

i. Thread nyloc nut (19) on to the threaded shaft.  

         

Summary of Contents for MultiMax

Page 1: ...1 www XSscuba com XS Scuba MultiMax Breathable Inflator Service Manual MultiMax Breathable Inflator Service Manual...

Page 2: ...tes that are accompanied by one of these symbols WARNING indicates a procedure or situation that may result in serious injury or death if instructions are not followed correctly CAUTION indicates any...

Page 3: ...n a workbench specifically set up and equipped for this purpose Adequate lighting and cleanliness along with easy access to the required tools should be considered mandatory 4 Delicate parts such as p...

Page 4: ...s If so document where the leaks are coming from 5 Purge the MultiMax Is the purge strong or weak Is there free flow or leaking after purging 6 Attach to magnehelic or conduct a subjective breathing e...

Page 5: ...RP370 22 Washer 23 RP370 23 Spring 24 RP370 24 Oral Button 25 RP370 25 Mouthpiece 26 RP370 26 Miflex Hose 26 CN BU 27 RP370 27 O ring 28 RP370 28 Inlet Stem 29 RP370 29 O ring 30 RP370 30 Crown Orifi...

Page 6: ...to the Multimax Pull back the hose b Use the Multi Purpose Tool TL136 to push out the cable retention pin c Separate the MultiMax from the cable 2 Remove the top cover assembly a Using a medium flat...

Page 7: ...w by hand ii Otherwise unscrew it by using a pair of 90 pliers or circlip pliers to engage either side of the cross member b Lift opposing edges of the exhaust valve like a taco to expose the spokes o...

Page 8: ...he o ring does not come out on the button shaft it may still be seated in the main body Please locate and remove it 6 Disassemble the breathing valve a Carefully pull off the dust cap 6 b Using a smal...

Page 9: ...et stem 28 f Separate the valve housing 35 assembly i Using a 5 5 mm socket or nut driver remove the nyloc nut 19 NOTE The parts are inside the valve housing 35 are under spring tension When removing...

Page 10: ...good condition they can remain in place and get cleaned with the main body 8 8 Remove hose connector 3 a When you removed the MultiMax from the BC if you left the hose connector assembly on you can re...

Page 11: ...enter the inside of the hose s Doing so may cause a breakdown of the inner hose lining which can lead to obstruction of the air passage way Preparing and Inspecting Parts Nitrox Preparation If you ar...

Page 12: ...ed Removes corrosion and mineral build up from metallic parts Household grade Oakite31 diluted with water Use in sonic cleaner to clean metal parts Oakite Products Inc 50 Valley Road Berkeley Heights...

Page 13: ...eat 11 on to button shaft 14 Tighten with a small flat head screwdriver until snug e Install a new lubricated o ring 10 on to the threaded cap 9 f Thread the cap 9 into the main body 8 Tighten with a...

Page 14: ...lled into the exhaust valve retainer 17 b Install the exhaust valve retainer i Lift the opposing edges of the exhaust valve 16 like a taco to engage your thumb and forefingerin between the spokes of t...

Page 15: ...nto the seat retainer 33 It should sit flush with the seat retainer 33 walls c Install the housing insert 36 into the valve housing 35 d Place the stem and seat assembly face down on top of the valve...

Page 16: ...rotate the stem 32 with a small pair of pliers so that the square portion of the stem 32 is parallel with the slot of the valve housing 35 See image below Now you can add the white valve insert 36 Ma...

Page 17: ...let stem 28 c Press fit the crown orifice 30 o ring side first into the inlet stem 28 6 Assembling the breathing valve a Thread the inlet stem assembly and the valve housing assembly together When doi...

Page 18: ...on the inlet stem 28 and squeeze into place using pliers wrapped with tape to protect the finish c Install the dust cap 6 Seat it into the groove just above the C clip 7 8 Final assembly occurs durin...

Page 19: ...ating between pressurizing and adjusting Here s a technician s tip instead of attaching the coupler between each adjustment just blow into the inlet stem and listen for an audible leak Drive in the cr...

Page 20: ...sert assembly into the body 8 iii Secure threaded collar 2 to lock into place iv If the hose connector 3 was removed from the BC s corrugated hose then reattach it to the BC d Attach MultiMax to the B...

Page 21: ...7 may be too low which will require adjusting the nyloc nut 19 See Adjusting and Testing Step 3 ii The purge should be strong and forceful It should not leak afterward If the purge is weak or the unit...

Page 22: ...FM flow rate minimum Inhalation effort too high 1 Crown orifice 30 mis adjusted 2 Valve adjustment nut 19 misadjusted 3 Intermediate pressure from 1st stage too low It should be between 135 147 psi 4...

Page 23: ...23 www XSscuba com XS Scuba MultiMax Breathable Inflator Service Manual...

Page 24: ...ay be registered in certain jurisdictions All other names are trademarks of their respective owners All products and prices are subject to change without notice Copyright 2017 by XS Scuba Inc All Righ...

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