The Sherwood Gemini is a Breathing Regulator/Inflator that replaces the conventional BC Power Inflator and Back-Up 2nd Stage and merges those into one unit.

The Gemini permits a diver to single handedly: Power Inflate, Deflate, Orally Inflate and Provide Breathing Gas without difficulty. A total of four functions conveniently packaged inside one single unit.

This course includes written material, slides, video and quizzes and is designed to provide regulator repair technicians an overview of the primary functions of a Sherwood Gemini Inflator-Regulator Octo regulator, as well as the typical workflow with detailed step by step procedures to maintain and to completely overhaul these amazing breathing machines.  

Course Curriculum

  • 1

    Section 1 - Introduction

  • 2

    Section 2 - Reference Materials & Use of Videos

    • Reference Material Use

    • Use of videos

    • 9000-PK Service Kit Parts

    • Sherwood Gemini Schematics

    • Sherwood Gemini - Service Manual pdf
  • 3

    Section 3 - Disassembly

    • Disassembly Procedures

    • Disassembly Removal of Gemini From Tube & QD Hose

    • Disassembly - Purge Cover

    • Disassembly - Demand Valve

    • Disassembly - Oral Inflator/ Deflator

    • Disassembly Power Inflator

    • Disassembly Procedures - Quiz
  • 4

    Section 4 - Disassembly Videos

    • Disassembly Video Notes

    • Disassembly Complete Workflow

    • Disassembly Demand Valve
  • 5

    Section 5 - Cleaning & Inspection

    • Cleaning & Inspection
  • 6

    Section 6 - Lubrication

    • Lubrication
  • 7

    Section 7 - Reassembly - Part 1

    • Reassembly Notes

    • Reassembly Part 1 - Demand Valve No. 1

    • Reassembly Part 1 - Demand Valve No. 2

    • Reassembly Part 1 - Quiz
  • 8

    Section 8 - Reassembly - Part 2

    • Reassembly Part 2 - Oral Inflator / Deflator

    • Reassembly Part 2 - Quiz
  • 9

    Section 9 - Reassembly - Part 3

    • Reassembly - Part 3 - Power Inflator

    • Reassembly - Part 3 - QD Hose Adapter

    • Reassembly Part 3 - Quiz
  • 10

    Section 10 - Reassembly Videos

    • Reassembly Videos Notes

    • Reassembly - Gemini Demand Valve

    • Reassembly - Inserting/Securing Demand Valve

    • Reassembly - Power Inflator Button

    • Reassembly - Deflator / Oral Inflator
  • 11

    Section 11 - Final Testing & Calibration

    • Final Testing Procedures - Notes and Calibration Video

    • Testing & Calibration Part 1

    • Testing & Calibration Part 2

    • Gemini - Calibration Workflow

    • Final thoughts before moving to the Final Exam
  • 12

    Section 12 - Final Exam

    • Final Exam

About the instructor

Technician Trainer at Sherwood Scuba

Mauricio Moreno

Mauricio can repair anything (most times) ...

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