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A 700 Maintenance Procedure 

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11.  With the small screwdriver, screw clockwise the inner fine adjustment screw 

to remove it from the adjustment shaft. 

12.  Remove the P/N 01.050.126 o-ring from this fine adjustment screw with the 

o ring extractor. 

13.  Remove the balance chamber and the spring from the inlet tube. 

14.  With great care push the poppet assembly out of the barrel through the 

adjustable orifice, with the small screwdriver. 

15.  With the o-ring extractor remove the 2 o-rings P/N 01.050.363 from the 

poppet shaft. Remove also the seat P/N 11.250.221. 

16.  With the universal tool unscrew the adjustable orifice and push it carefully 

out with the wooden chop stick from the hose side. 

17.  Remove the o-ring from the orifice with the extractor tool. 

18.  It is not necessary to remove the lever from the inlet tube for cleaning. If 

necessary, spread the lever legs carefully and remove one lever tab before 
the other to minimise the risk of distorting the lever. 

19.  It is not necessary to remove the flow reducer from the inlet tube. 

20.  Inspect the antifriction insert on the inlet tube to detect any wear on the 2 

small square holes. It is not necessary to remove this inset.  

21.  To remove the exhaust tee using no tools. 

22. 

It is not necessary to remove the exhaust valve unless it needs 
replacing.

 Pull on the exhaust valve to remove it from the housing. 

 
 

PARTS CLEANING 

 

WARNING: Refer to parts cleaning procedure. 

 

ASSEMBLY 

 

1.  After careful inspection of the cleaned parts and the static o rings that do 

not need to be changed, prepare all the parts that need to be changed at 
every annual service. 

a.  P/N 11.250.221 the seat 

b.  P/N 01.050.363 the 2 poppet o rings 

c.  P/N 01.050.132 the interstage pressure hose o ring 

d.  P/N 01.050.293 the adjustment screw o ring 

e.  P/N 01.006.719 the decal 

            Or P/N 11.650.045, the annual repair kit. 

 

Summary of Contents for Scubapro Uwatec A 700 2nd Stage

Page 1: ...A 700 Maintenance Procedure 1 MAINTENANCE PROCEDURE FOR A 700 2nd STAGE ...

Page 2: ...ocktite during assembly 2 Remove the hose o ring with the o ring extractor Remove the mouthpiece clip with the small screwdriver remove the mouthpiece and the mouthpiece support 3 With the Torx screwdriver remove the 4 Torx screw on the cover remove also the 4 small o rings Separate the purge cover the ring and the diaphragm 4 With the small screwdriver using it as a lever remove the safety clip f...

Page 3: ...be for cleaning If necessary spread the lever legs carefully and remove one lever tab before the other to minimise the risk of distorting the lever 19 It is not necessary to remove the flow reducer from the inlet tube 20 Inspect the antifriction insert on the inlet tube to detect any wear on the 2 small square holes It is not necessary to remove this inset 21 To remove the exhaust tee using no too...

Page 4: ... square hole Check again that there is no distortion of the lever 7 If the antifriction sleeve has been removed replace it with a new one 8 Place the 2 o rings P N 01 050 363 on the balanced poppet Place a new seat on a flat and clean surface Hold the poppet vertically to insert the seat into it Push firmly into place Lubricate the 2 o rings taking care to place some grease in between the o rings ...

Page 5: ...he diaphragm there should be neither punctures nor distortion after cleaning Please follow the standard cleaning procedure 19 Position the diaphragm on the case making sure that it is not distorted 20 Assemble the retaining ring and purge cover 21 Align the locator of the ring in the recess of the case and press 22 Put the 4 small o rings in their groves on the inside of the front cover Place this...

Page 6: ...rifice should stop the leak If more than of a turn is required to stop the leak it means that the spring compression is too light and the fine adjustment internal screw has to be screwed as follows This procedure must only be applied to stop the leak described above With the small screwdriver proceed by steps of of a turn at a time screw the internal fine spring tension adjustment in order to obta...

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