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MAINTENANCE PROCEDURE FOR MK 11 1 STAGE WARNING: this maintenance procedure is only for appointed Scubapro technicians that followed a complete course on equipment repair and in no case can replace a technical repair course delivered by an appointed SCUBAPRO/ UWATEC appointed staff.
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For the DIN version: Remove with the o ring extractor the "tank" o ring, then with the 4 mm Allen key unscrew the filter retainer. Remove the spring and the filter. Firmly hold the field handle tool in the vice and use the 6 mm socket extension to unscrew with care the DIN knob retainer.
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ASSEMBLY After careful inspection of the cleaned parts and the static o rings that do not need re- placement, prepare all the parts that need to be changed at every annual service. the filter 01.028.109 the filter retaining clip ( only for INT version) 01.073.101 the HP seat 10.117.103...
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Insert the assembled HP-poppet inside the assembled balance chamber. Insert the whole system inside the 1 stage and screw snug with the 6 mm Allen key. Warning! : Do not over torque. Place the diaphragm pin in the HP-poppet followed by the metal disc insert and the disc.
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THE 1 STAGE IS NOW READY FOR THE ADJUSTMENT PHASE. ADJUSTMENT FOR THE ADJUSTMENT, IT IS VERY IMPORTANT TO HAVE A SUPPLY PRESSURE CURRENTLY USED FOR DIVING WITH THE REGULATOR CONCERNED ( 200, 230 or 300 bars ). Place the 1 stage on a full tank as previously indicated.
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10. Close the tank valve and remove the 1 stage from the tank. 11. Place back the rubber bumpers and the inlet protector. MK 11 rev 1.1 2006 7 / 7...
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