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Summary of Contents for Dive Rite RG1208-5
- Page 1 Dive Rite Regulator Service Manual RG1208-5 Copyright 2011 Lamartek Inc. D/B/A Dive Rite...
- Page 2 Possession of this guide does not qualify any individual in the service of Dive Rite Breathing Systems. Only qualified Dive Rite dealers can service Dive Rite Products. Improper servicing can lead to serious injury or death. • Only Original Parts ordered from Dive Rite...
- Page 3 RG1208-5 Balanced First stage...
- Page 5 Disassembly of the RG1208-5 First Stage • Note the location of plugs and hoses. • Remove all low pressure hoses. • Remove high pressure hoses and remaining port plugs.
- Page 6 1) Screw port tool into high pressure port. Take care not to damage threads. 2) Place port tool with first stage attached into vise with the intermediate pressure adjustment screw in the upright position.
- Page 7 3) Using a 6mm Allen wrench loosen and remove the adjustment screw.
- Page 8 4) Place the spanner wrench into the holes of the diaphragm cap. 5) Loosen the cap by applying a firm steady pressure on the housing. Caution: Rapid jerking can cause the spanner wrench to slip and damage the cap.
- Page 9 7) Remove the intermediate pressure spring. 8) Remove the spring carrier and the plastic washer. Note: there is a second plastic washer found In the adjustment screw. Intermediate pressure Spring carrier Plastic washer spring...
- Page 10 Diaphragm Thrust Washer 9) Remove the thrust washer and diaphragm. Be careful not to damage sealing surfaces. Remove the diaphragm by using a pick to puncture it halfway between the middle and the edge. This will avoid damaging the sealing surface...
- Page 11 10) Carefully remove the valve lifter. 11) Inspect for damage or corrosion. Valve Lifter...
- Page 12 12) Remove the regulator from the vise and invert it so that the turret side is facing up.
- Page 13 HP valve module 13) Insert a 6mm Allen wrench into the 5 port and remove the turret retainer (HP valve module.) Alternatively, an 11/16” open-end wrench may be used. The turret retainer has a torque setting of 125 in-lbs (14.1 Nm)
- Page 14 14) Remove the high pressure valve and spring.
- Page 15 15) Using a pick remove the two “O” rings located on the module Remove the “O” ring and thrust washer from the turret Note: be careful not to scratch the sealing surfaces.
- Page 16 16) Remove the large “O” ring and the turret Logo ring.
- Page 17 17) Using a pick remove the exterior “O” ring from the DIN lockdown screw. ( If the yoke adaptor is attached unscrew the yoke.) This “O” ring is located in the track surrounding the high pressure inlet.
- Page 18 18) Insert a 6mm Allen wrench into the tank Inlet. Loosen and remove DIN lockdown screw. Note: DIN adaptor uses thread lock. If DIN adaptor comes off as one piece simply use a 7 mm Allen wrench on the bottom of the unit while holding the 6mm wrench already inserted into the DIN lockdown screw.
- Page 19 20) Remove the Din hand wheel. 21) Remove the dust cap.
- Page 20 22) Using a 19mm socket wrench loosen and remove the DIN connector and saddle. Saddle DIN Connector...
- Page 21 23) Remove the “O” ring from the Din Connector. 24) Remove the cone shaped filter from the DIN Connector.
- Page 22 This completes disassembly of the Dive Rite RG1208-5 First stage.
- Page 23 Warning!!! Only original Dive Rite parts are to be used • All parts that are removed from the serviced regulator and replaced by those in the parts kits are to be returned to Dive Rite. • Remaining parts should be cleaned in a solution compatible with Nitrox use.
- Page 24 Assembling the RG1208-5 First Stage...
- Page 25 1) Lubricate and install “O” ring # RG1241 into the DIN connector. 2) Install the saddle with the curved side facing the threads. Use one (1) drop of blue thread lock on the DIN connector.
- Page 26 3) Screw the DIN connector into the first stage body after installing the regulator tool. Use a vise to hold the first stage tool firmly. 4) Tighten the DIN connector using a 19mm socket wrench.
- Page 27 5) Install the lower filter “O” ring # RG1243 on the filter. 6) Install the filter into the DIN Connector.
- Page 28 7) Install the dust cap assembly over the Din connector. 8) Install the hand wheel over the DIN connector.
- Page 29 9) Lubricate and install “O” ring # RG1242 on the DIN lockdown screw. 10) Install the lockdown screw into DIN connector and tighten with 6mm Allen wrench.
- Page 30 11) Mount the first stage so the turret side is facing upwards. 12) Lubricate and install “O” ring # RG1232 on the first stage.
- Page 31 12) Install turret logo ring. 13) Install the turret. 14) Install thrust washer # RG1237 And “O” ring # RG1238...
- Page 32 Preparing the Turret retainer/HP valve module for installation 15) Lubricate and Install “O” ring # RG1235. 16) Install “O” ring # RG1236.
- Page 33 17) Place spring # RG1280 on top of the HP valve module. 18) Install the new HP valve seat, # RG1234, lightly lubricate the valve stem, allow the stem to pass through the center of the spring and through “O” ring # RG1235.
- Page 34 19) Install the completed turret retainer/HP valve module into the first stage by passing it through the turret.
- Page 35 20) Tighten the turret with 6mm Allen wrench. Be careful not to pinch “O” ring # RG1238. Torque Retainer Turret to 125 in-lbs (14.1 Nm)
- Page 36 22) Turn the first stage over so that the balance chamber is facing upwards. 23) Install the valve lifter into the first stage body. Press on the valve lifter to verify contact and spring resistance with the HP valve seat, # RG1234. valve lifter...
- Page 37 24) Install diaphragm # RG1230-05 make certain that the diaphragm is seated below the threads and is in contact with the seating surface. Install the thrust washer # RG1265...
- Page 38 Spring Washer Carrier 25) Place the spring carrier on the diaphragm center. 26) Place plastic washer on the spring carrier.
- Page 39 27) Place intermediate pressure spring on the spring carrier. 28) Install the adjusting screw (two turns) into the diaphragm cap.
- Page 40 29) Install the diaphragm cap over the spring and screw the cap down completely. 30) Tighten the diaphragm cap firmly using the spanner wrench with steady even tension.
- Page 41 This completes assembly of the RG1208 First Stage.
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