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27, Cressi-sub XS Compact Riparazione e Manutenzione Erogatori January 2014 Rev XSC /C Ed. C /14 27 XS Compact 2nd stage: steps in disassembly • Remove the deflector from the regulator case by pushing on the sides as shown in the figure, then pull out the discharge valve from its housing. 28 = HZ 780061 19 = HZ 782097
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48, Cressi-sub XS Compact Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 48 XS Compact 2nd stage: phases of assembly • Push the injector complete with valve body and lever, placing it into the hexagonal set of the 2nd stage case; • The correct insertion direction and placement of the assembly is shown in the figure.
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44, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 44 XS Compact 2nd stage: phases of assembly • Fully unscrew the movable nozzle unit from the valve body.
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26, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 26 XS Compact 2nd stage: steps in disassembly • Pull out the nozzle, inserting the plastic universal spring pusher into the side opposite the air intake for the nozzle unit. This tool is specially designed to avoid damaging the sharp edge of the nozzle; • NOTE: you need to push firmly to exceed the friction exerted by the O-Ring on the wall of the body, before you can pus…
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32, Cressi-sub XS Compact Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 32 XS Compact 2nd stage: phases of assembly • Insert the discharge valve into the 2nd stage, checking that it lies against the case with no obstructions for a perfect seal. The correct position of the valve stem inside the regulator is shown in the small photo. 19 = HZ 782097
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18, Cressi-sub XS Compact Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 18 XS Compact 2nd stage: steps in disassembly • Once the side cap is removed, fully unscrew the 5.5 mm nut using the socket screwdriver, inserting it through the hole in the case. HZ 709009
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20, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 20 XS Compact 2nd stage: steps in disassembly HZ 709009 11K = HZ 746094 12 = HZ 780074
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10, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 10 XS Compact 2nd stage: steps in disassembly • Place a 19 mm wrench on the 2nd stage valve seat nut and at the same time unscrew and remove the low pressure hose with a 17 mm wrench as shown in the figure; • Check that the low-pressure hose shows no clear signs of wear, cuts, or scrapes, especially near the threaded connections.
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17, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 17 XS Compact 2nd stage: steps in disassembly • Push up on the end of the 2nd stage case side cap fastening tab while simultaneously pushing it out of the regulator, as shown in the figure.
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2, Regulators repair and maintenance January 2014 Rev XSC /3 Ed. C /14 2 • This manual is intended for use by expert technicians who have already received training in equipment repairs and maintenance from Cressi-sub; • We decline all responsibility for any maintenance and/or repair performed by personnel not authorized by Cressi-sub; • Avoid performing maintenance and/or repair operations on the equipment without the proper training required to conduct these operations; • Users …
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29, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 29 XS Compact 2nd stage Movable nozzle + O- Ring Movable nozzle unit + O-Ring Spindle seat Valve spindle assembly Valve spring Valve body Side cap + O-Ring Nut and washer 2nd stage cap 2nd stage button 2nd stage button ring 2nd stage diaphragm 2nd stage lever Exhaust valve 2nd stage deflector Injector 2nd stage case Flow de…
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35, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 35 XS Compact 2nd stage: phases of assembly • Insert the spindle assembly (with the old seat) into the spring inside the valve body as shown in the figure. 7K = HZ 780077
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63, Regulators repair and maintenance January 2014 Rev XSC /3 Ed. C /14 63 XS Compact 2nd stage: checking and inspection steps • Once the regulator is calibrated, keeping the regulator under pressure with a properly calibrated 1st stage, making the following final checks: • Immerse the second stage slowly in water with the mouthpiece facing up, with the Venturi control lever in the Dive "+" position, and without letting water enter from the mouthpiece; • After about 5 cm of water, the regulator should start to release air, unt…
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12, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 12 XS Compact 2nd stage: steps in disassembly • Lever the dome lock retainer and pull it out of the 2nd stage as shown in the figure. 26 = HZ 780063
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51, Regulators repair and maintenance Ed. C /14 51 Ed. A /11 51 XS Compact 2nd stage: phases of assembly • Place the diaphragm in the 2nd stage case as shown in the figure; • Then, carefully ensure that the outer edges of the diaphragm are seated perfectly in the regulator case. 23 = HZ 780069 January 2014 Rev XSC /C
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33, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 33 XS Compact 2nd stage: phases of assembly • First assemble the regulator valve, reinserting the seat that was just removed in the seat-holder bushing of the valve spindle; • Note: the purpose of using the old seat - as we will see - is to prevent the new one from getting nicked in this step by the sharp edge of the nozzle. 4 = HZ 742013
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11, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 11 XS Compact 2nd stage: steps in disassembly • In the annual overhaul, the O- Rings inside the hose must be replaced, and check that the low pressure hose shows no clear signs of wear, cuts, or scrapes, especially near the threaded connections.
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36, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 36 XS Compact 2nd stage: phases of assembly • Screw the two assembled components all the way to the end of the thread, without tightening. 3 = HZ 780080 10 = HZ 780075
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34, Cressi-sub XS Compact Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 34 XS Compact 2nd stage: phases of assembly • Insert the spring into the valve body, making sure that it inserts properly into its housing inside the valve body. 8 = HZ 730207
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61, Regulators repair and maintenance January 2014 Rev XSC /3 Ed. C /14 61 XS Compact 2nd stage: calibration steps HZ 710011 HZ 709009 - + • Calibrating the XS Compact second stage: lever height adjustment
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19, Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 19 XS Compact 2nd stage: steps in disassembly • Then remove the lever, the washer, and the nut from the 2nd stage.
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45, Cressi-sub XS Compact Regulators repair and maintenance January 2014 Rev XSC /C Ed. C /14 45 XS Compact 2nd stage: phases of assembly • Remove the old seat from the valve spindle and replace it with the new one contained in the annual maintenance kit. 4 = HZ 742013
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57, Cressi-sub XS Compact Regulators repair and maintenance January 2014 Rev XSC /3 Ed. C /14 57 XS Compact 2nd stage: calibration steps • Calibrating the XS Compact second stage: adjusting the valve nozzle (pg. 59) • Screw the 2nd stage to the calibration gauge (HZ 710011) connected to a properly calibrated first stage with a low pressure hose; • Mount the regulator assembly (1st + 2nd stage) on a tank filled to 200 bar, or on a test bench with similar pressure, and then slowly open the air valve while simultaneously pushin…
