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A 700 Maintenance Procedure 

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14. Assemble the shaft and sleeve assembly inside the Dive Switch. Put the o 

ring P/N 01.050.126 on the stainless steel screw and fix the adjustment 
knob using the 4mm Allen key.  

15. Now insert this complete assembly on the inlet tube to align the ‘’tail’’ of the 

Dive Switch in the grove of the flow reducer. 

           

Warning: Make sure that the injection hole is facing the mouthpiece  

 

 

tube when engaging the ‘’tail’’ of the Dive Switch in the flow 

reducer  

 

 

grove. If it is not the case, back the complete 

assembly and rotate the   

flow reducer in the correct position.  

16. It is now important to engage the 2 tabs of the Dive Switch in the 2 

recesses of the    inlet tube. Place the Dive Switch lever in front of the 
rotation limiting grove. Pull with one finger the lever into the case and at the 
same time rotate anticlockwise the adjustment knob. When the 2 tabs are 
aligned with the 2 recesses, the Dive Switch will go in position.  

17. Maintain the pull on the Dive Switch lever and insert the clip to lock the 

system in the case. Make sure that the clip is completely inserted in the 
grove. 

18. Check the 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 assembly on the purge cover and maintain a constant pressure to keep 
all the parts together. 

23. Tighten crosswise the 4 screws with the Torx screwdriver without excessive 

torque. 

24. Assemble the mouthpiece support and the mouthpiece and secure with the 

mouthpiece clip. 

25. Place the inter stage pressure o ring in the groove of the inter stage 

pressure hose and slightly lubricate. 

 

THE 2ND STAGE IS NOW READY FOR ADJUSTMENT 

 

WARNING: DO NOT ATTEMPT TO ADJUST A 2ND STAGE IF THE 

INTERSTAGE PRESSURE IS NOT CORRECTLT ADJUSTED. 

 

1.  Before connecting the adjustment tool to the 2nd stage, and without 

pushing on the purge, slowly blow through the inlet tube to detect a leak. 
This information will indicate if the orifice is in contact (no leak) or not (leak) 
with the seat. If a leak is detected, screw the 2nd stage adjustment tool to 
the 2nd stage and slowly screw the orifice about one or two turns to stop 
any leak. 

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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