Tusa PLATINA R-100 Technical Manual Download Page 1

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R-100

BALANCED PISTON FIRST STAGE REGULATOR

R-100 FIRST STAGE

TECHNICAL MANUAL

Revised v1.0-2000

Summary of Contents for PLATINA R-100

Page 1: ...R 100 BALANCED PISTON FIRST STAGE REGULATOR R 100 FIRST STAGE TECHNICAL MANUAL Revised v1 0 2000 1...

Page 2: ...ication 9 IV INSPECTION TECHNIQUES AND TROUBLESHOOTING 10 4 0 Inspection Techniques 10 A O rings 10 B Sealing Surfaces 10 C Hoses Rubber Components 11 4 1 Troubleshooting Guidance 11 4 2 Troubleshooti...

Page 3: ...or use by divers in overhauling or attempted repair of regulators in the field Such practice by untrained persons is strongly discouraged and should be attempted only by trained personnel when absolut...

Page 4: ...nd wrench 1 2 9 16 2 Open end wrench 11 16 19 32 3 Open end wrench 5 8 3 4 4 MT 6W1 Allen Key 3 16 5 MT 6W2 Allen Key 5 32 6 MT4 10 Snap ring pliers 7 MT1 1 R 100 Piston bullet 8 MT1 2 Filter Retainin...

Page 5: ...for the following discussion High pressure air entering the yoke retainer inlet port of the first stage regulator passes through a sintered filter which helps prevent the entry of any foreign particle...

Page 6: ...despite a continually decreasing supply pressure from the SCUBA cylinder This stabilization of intermediate air pressure in the first stage assures optimal second stage performance as the air supply i...

Page 7: ...tallic matrix structure creates a large filtration area allowing for efficient air filtration with low pressure drop This large area makes the filter susceptible to corrosion by trapping tiny droplets...

Page 8: ...it examined by your authorised TUSA service centre DO NOT leave the regulator pressurized or attached to a SCUBA cylinder for an extended period of time when not in use DO NOT lift the SCUBA cylinder...

Page 9: ...ends to subject the regulator to constant moisture exposure and will lead to accelerated corrosion of regulator valve components Diving with Enhanced Air Safe Air mixtures requires the regulator to be...

Page 10: ...to disassembly of the stages for further discussion A O RINGS O rings are common off the shelf well engineered reliable sealing devices A few words about handling them are required O rings can be ord...

Page 11: ...mportant to proceed as follows 1 Talk to the customer Attempt to understand the nature of the problem If the customer describes for instance sporadic periods of high inhalation efforts Ask the obvious...

Page 12: ...eplace Spring isolator 4 HP piston stem o ring 12 worn or Damaged 4 Replace o ring and check seal 5 Filter housing 7 loose 5 Tighten filter housing 6 Leak between intermediate chamber LP hose and seco...

Page 13: ...ubleshooting Section 4 0 to gain a better idea of which internal parts may be worn and to better advise your customer of the service that is required Refer all item numbers 99 to the schematic view or...

Page 14: ...e end cap 22 is loosened enough to complete removal by hand The end cap ring 21 should then be taken from the body by hand inspected and cleaned Refer to Figure 5 d 5 Using an o ring pick remove the b...

Page 15: ...y of these conditions are found 8 Remove the HP spring 18 and inspect it for any unusual cracks corrosion or bent coils RECORD FOR REPLACEMENT and DO NOT attempt to re use if any of these conditions a...

Page 16: ...the o ring upon removal and RECORD REPLACEMENT DO NOT attempt to reuse this o ring 11 Remove the Yoke knob 1 and the dust cap 3 from the yoke 2 Inspect very thoroughly for cracks wearing or distortio...

Page 17: ...the HP seat 8 and HP seat retainer 9 turn the body 13 upside down See Figure 5 m If the HP seat assembly does not dislodge and fall out by itself push it out from opposite end using a short burst air...

Page 18: ...most parts plastic metal You may substitute a mild dish soap or diluted household grade of white distilled vinegar Other exterior cleaning can be accomplished using isopropyl alcohol where required Us...

Page 19: ...at a minimum of I year and 6 months for regulators in rental dive school or commercial applications ANNUAL OVERHAUL REPAIR KIT RS110 130 FIRST STAGE Product Code Description Remarks Qty R100 020 FILT...

Page 20: ...tempted using only the proper tools and patience View the main body through the piston entrance to locate the internal o ring groove The piston stem o ring 12 seals against both the stem of the HP pis...

Page 21: ...n the regulator function 6 Before lowering the HP piston bullet first into the main body 13 lubricate the stem 2mm below the knife edge this will lubricate the stem o ring Then insert until the bullet...

Page 22: ...cap 22 insert one LP tightening bar into LP port of the end cap and one HP tightening bar into a HP port The end cap only needs a firm hand tight force do not over tighten in a vise Refer to Figure 5...

Page 23: ...ubricate the under side of the yoke 2 Place the yoke over the threaded portion of the main body 13 16 Holding the yoke retainer between thumb and forefinger apply one drop of Loctite to the middle thr...

Page 24: ...ance in the regulator function 2 The intermediate pressure delivered by the balanced piston design does vary slightly according to the supply tank pressure Properly adjusted the intermediate pressure...

Page 25: ...solators as required to adjust the intermediate pressure Apply a light film of lubricant see section 1 1 to both sides of the spring Before installing the HP spring 8 Install a genuine Tusa piston ins...

Page 26: ...1 TORQUE SPECIFICATIONS FOR R 100 BALANCED PISTON FIRST STAGE The following specifications are to be adopted upon assembly of the R 100 Balanced piston First Stage Make certain you verify your torque...

Page 27: ...within the 135 to 145 psi range with a supply source between 2750 and 3000 psi If a regulator will be used exclusively in the 2250 to 2500 psi range the first stage can be adjusted to deliver 145 psi...