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SCUBA REGULATOR MAINTENANCE AND REPAIR
CONTENTS
Introduction
Chapter 1 How
A Regulator Works
Demand Regulators - Ambient Compensation - Some Nomenclature - Upstream or Downstream
- Diaphragm vs Piston - Second Stages - Balancing - Venturi Assist - Navy and
CEN Tests - Gimmicks -Subtleties
Chapter 2 Getting
Started
Overview - Warnings - More Nomenclature
Chapter 3 First
Stage Overhaul
Non-Balanced Pistons - Balanced Pistons - Balanced Diaphragms
Chapter 4 Second
Stage Overhaul
Basic Downstreams - Barrel Poppets - Servo Valve - Tilt Valve - Others
Chapter 5 Tuning
The Regulator
Overview - Single Adjustment - Two Adjustment - First Stages - Fine Points
Chapter 6 Procedures
and Techniques
Pre-Servicing Checks - Loosening Stuck Parts - Cleaning -Inspection - Lubrication
- Tightening Things - Intermediate Pressure - Cold Water Kits - Cracking Pressure
- Flow Testing -Final Testing - Routine Maintenance
Chapter 7 Servicing
Regulator Components
Inlet Filters -Snap and Lock Rings - HP and LP Seats - Orifice Blocks - Balance
Chambers - Purge Assemblies - Exhaust Valves - Soft Parts - Cold Water Kits
- Plastic - Hoses - Yoke and Din Connectors - Dust Caps
Chapter 8 O-rings
And Other Seals
Static or Dynamic? - Care and Handling - Lubrication - Material Specifications
- Buying O-rings - Sizing O-rings - O-rings for Oxygen Service - Packing Seals
and Gaskets
Chapter 9 Tools
Tools - Test Equipment - Chemicals
Chapter 10 Diagnosis
Charts - Discussion - "None Of The Above"
Chapter 11 Valves,
Tanks And Gauges
Removing Valves - Diagnosis - Overhaul Procedure - Burst Disks - Tanks - Visual
Inspection - Neck Cracks - Hydrotesting and Tumbling - Gauges
Chapter 12 Servicing
Regulators In A Non-Shop Environment
Obtaining Parts - Service Literature - Other Sources of Information - Recalls
- Manufacturers Tech Courses
Chapter 13 Regulators
By Make
Abysmal - Apeks - Atomic - Dacor - Dive Rite - Genesis - Oceanic - Mares - Poseidon
- Scubapro - Sherwood - Spiro - Zeagle - Torque Specifications
Appendices
1 - Glossary
2 - Sources
3 - SCUBA Regulator Manufacturers
4 - Buying A Regulator
5 - NPT to SCUBA Straight Thread Adaptors
Schematics
First Stages
1. Apeks
2. Atomic
3. Dacor
960
4. Genesis
DAD
5. Modular Dacor
6. Sherwood
7. Mares MR 22
8. Poseidon Odin/Jetstream/Cyclon
9. Poseidon XStream
10. Spiro SEA
11. Scubapro Mk 5/10, Oceanic BP and Copies
12. Scubapro
Mk14/16/18
13. Scubapro Mk 20/25
14. Seaquest Mirage NBP
15.Oceanic Sport NBP
Second Stages
1. Apeks
2. Atomic
3. Mares Ruby/Abyss/Voltrex
4. Poseidon Jetstream/Odin
5. Scubapro G1903.
6. SP 500,
550, 600
7. SP G250, G200, BA and 109
8. Sherwood
9. Spiro Basic Downstreams
10. Oceanic Delta2
11. USD/Aqualung Micra/Micra Adj.
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