User manual MARES MR 22 DEALER MANUAL

[. . . ] Reinstall the first stage cover (81) and o-ring (71) into the first stage body using hex wrench (83). Remove one 3/8" LP port and insert first stage disassembly tool (85). Remove regulating nut (18) with hex wrench (813) and remove diaphragm spring (16) (Fig. Remove retaining nut (17) with wrench (816) and remove spring base plate (15) (Fig. [. . . ] Lubricating the o-rings before reassembly will minimize the risk of damage during reassembly. Place poppet seat onto tool (821). NOTE MAKE SURE THE TAPERED SURFACE OF THE POPPET SEAT IS FACING TOWARDS TOOL (B21). 3. Using light pressure, press the poppet seat into position in the first stage body (Fig 20). Insert the locking head and spring in the first stage cover. NOTE THE LOCKING HEAD MUST BE FACING THE OPEN END OF THE FIRST STAGE COVER. A SMALL PLASTIC ROD CAN BE USED TO PRESS THE LOCKING HEAD AND SPRING INTO THE FIRST STAGE COVER (FIG 21). 12. Insert the poppet pin (12) through the center hole in the first stage body. Place the poppet button (13) over the poppet pin and depress it a few times to ensure that the poppet will move freely. Lightly lubricate the sealing edge of retaining nut (17) and tighten into the first stage body until snug , (19-22 Ft/lb. Lightly lubricate the base of the diaphragm spring (16) then place it on the base plate. Using tool (813) tighten regulating nut 2-3 turns. NOTE DO NOT OVER TIGHTEN REGULATING NUT. THIS WILL CAUSE INTERMEDIATE PRESSURE TO INCREASE AND INTERFERE WITH LATER ADJUSTMENTS. Compress the retaining ring (2) with snap ring pliers and position the ring over the sintered filter. Depress the sinter~d filter until the snap ring fits into the groove in the yoke retainer nut. NOTE WHEN THE FILTER RETAINING RING IS PROPERLY POSITIONED IN THE GROOVE OF THE FIRST STAGE BODY IT CAN BE ROTATED FREELY USING THE SNAP RING PLIERS 26. Install yoke retaining nut (7) and tighten in to place with wrench (81). NOTE TO PREVENT THE YOKE RETAINING NUT FROM BECOMING LOOSE, PLACE TWO DROPS OF THREAD COMPOUND (LOCTITE 242) ON THE THREADS OF THE NUT. Thread hoses and port plugs into appropriate ports and tighten. · Adjusting intermediate pressure - - - - - - - - - ----------------------------------. -- ---_. ---- - - - - - - . - - - - - - - - - - - - - -----_. EXPLOSION HAZARD DO NOT CONNECT THE INTERMEDIATE PRESSURE GAUGE TO THE HIGH PRESSURE PORT OF THE FIRST STAGE. CONNECTING THE INTERMEDIATE PRESSURE GAUGE TO THE HIGH PRESSURE PORT OF THE FIRST STAGE WILL CAUSE THE HOSE AND/OR INTERMEDIATE PRESSURE GAUGE TO EXPLODE AND COULD RESULT IN SERIOUS PERSONAL INJURY OR DEATH. 2. 22). Low pressure outlet (LP) INTERMEDIATE PRESSURE TUNING GAUGE FIG. Depress the second stage demand lever while slowly opening the tank valve. When air begins to flow from the second stage slowly release the demand lever and fully open the tank valve. Intermediate pressure specification for the MR 22 Abyss is 142-148 psi. NOTE IF THE REGULATOR IS TO BE USED FOR COLD WATER DIVING (BELOW 47 F) OR IS EQUIPPED WITH A CWD KIT, REFER TO THE COLD WATER DIVING KIT SECTION OF THIS MANUAL FOR INSTALLATION/SERVICING OF THE CWD KIT AND INTERMEDIATE PRESSURE SPECIFICATIONS. a. If the intermediate pressure is greater than necessary, slightly loosen the regulating nut, using tool (813), until the desired value is obtained. NOTE WHENEVER INTERMEDIATE PRESSURE IS DECREASED, EXCESS AIR MUST BE EXHAUSTED BY DEPRESSING THE SECOND STAGE DEMAND LEVER TO OBTAIN THE CORRECT READING. b. [. . . ] Position the first stage five to ten degrees from vertical with the open end of the retaining nut facing up. Fill the regulating nut with the silicone oil provided in the CWD kit until it is full. Gently tap the sides of the regulating nut with a soft object such as a wood or plastic screwdriver handle to eliminate bubbles from the silicone oil. With a thin tipped tool lift the higher edge of the diaphragm while gently depressing the center of the diaphragm with a blunt tool allowing air to escape. [. . . ]