Sherwood SRB5100, SRB5900, SRB5700, SRB5300 manual Introduction

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1.0 INTRODUCTION

1.0 INTRODUCTION

1.The procedures in this manual apply to the Sherwood Scuba SRB5900 Blizzard, SRB5700 Oasis, SRB5300 Magnum and SRB5100 Brut regulators only. The older SRB3900 Blizzard, SRB3700 Oasis, SRB3300 Magnum and SRB2100 Brut regulators have different part and service procedures. They have their own manuals that are to be used for guidance during their servicing (Part Numbers T-SC07A93 and T-SC07B93). The most current part numbers can be obtained by calling your Sherwood Sales Representative or Sherwood Scuba Customer Service.

WARNING

NEVER tighten the hose fitting to the first stage with more than 40 in. lbs. (4.5 joules) of torque. The inlet hose fitting can be weakened by overtightening.

All current Sherwood Scuba Regulators have service kits available which contain the parts which must be changed at every annual service no matter what their condition. The standard annual service kit for the Blizzard, Oasis, Magnum, and Brut is 4000-15. All other parts not contained in this kit must be inspected by the technician and changed under warranty only if they have failed due to problems with material or workmanship.

NOTE: Oxygen Enriched Air conversion kits are available for all current Sherwood regulators and valves. The part number for the models covered in this manual is 4000-15N. These kits are to be installed into properly cleaned and prepared regulators only by technicians trained by one of the major oxygen enriched air training agencies.

2.This manual gives breakdowns of regulator parts, equipment specifications, servicing instructions, troubleshooting recommendations, and guidelines for proper care of these regulators. This manual is intended for use only by persons specially trained and authorized to service Sherwood Scuba equipment.

3.Anyone attempting to service or repair Sherwood Scuba regulators must have a thorough understanding of the principles of operation of scuba regulators and valves, as well as the appropriate mechanical ability. The technician must be properly trained in the safe use of compressed air and the various tools and cleaning solutions involved in the procedures outlined in this manual.

4.The best source for current part numbers for any of the parts listed in this manual is your current parts and price list from Sherwood.

5.Because of the many unique features found in Sherwood regulators, Sherwood conducts seminars on a regular basis throughout North America to train technicians in proper service and repair procedures for all current Sherwood regulators. In addition, all Sherwood dealers and their staff members are encouraged to attend the seminars to gain an in-depth understanding of the construction, special features and operation of Sherwood regulators. For information on the dates and locations of upcoming Sherwood service seminars near you, contact Sherwood Scuba or your Sherwood Sales Representative or Sherwood Scuba Customer Service.

NOTE: You must be authorized by Sherwood to work on Sherwood Scuba equipment. You can obtain proper authorization by attending all appropriate seminars given in your area. This is the only way you can become an authorized Sherwood technician.

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Contents Assembly & Maintenance Guide REGULATORSSRB5300 SRB5900CATALOG # ITEM #DESCRIPTION TABLE OF CONTENTS Page 1.0 Introduction 2.0 Specifications3.0 O-rings Reference Chart 6.0 Helpful Hints1.0 INTRODUCTION Page First Stage Regulator 2.0 SPECIFICATIONSB. Second Stage Regulator U.S. Pat. # 4,226,257 2.2 SPECIFICATIONS FOR THE SRB5100 BRUT REGULATORU.S. Pat. #3,991,785 3.0 O-RINGS REFERENCE CHART 4.2 DISASSEMBLY OF FIRST STAGE 4.0 FIRST STAGE PROCEDURES4.1 TOOLS REQUIRED FOR FIRST STAGE SERVICING Photo #1 Photo #2 Photo #3 4.3 ASSEMBLY OF FIRST STAGE A. Before You Begin Testing 4.4 TESTING OF FIRST STAGEB. Dry Air Bleed Flow Test C. Intermediate Pressure Test 5.2 DISASSEMBLY OF SECOND STAGE 5.0 SECOND STAGE PROCEDURES5.1 TOOLS REQUIRED FOR SECOND STAGE SERVICING 10. Remove the O-ring 21 from the adjustable orifice 5.3 ASSEMBLY OF SECOND STAGE 70 in. lbs. 8 joules5.4 SET- UP OF SECOND STAGE For the following adjustments, remove the cover and diaphragmPhoto #4 Photo #5B. Exhalation Effort 5.5 TESTING OF SECOND STAGE A. Inhalation EffortC. Leak Test D. External Air Leaks 6.1 TROUBLESHOOTING REGULATORS 6.0 HELPFUL HINTSA. High Inhalation Effort at Depth B. Free FlowingC. Wet Breathing D. Humming or Buzzing During Inhalation6.2 PARTS CLEANING RECOMMENDATIONS 6.3 COMMONLY USED CLEANING SOLUTIONS6.4 HANDLING TIPS A. Pre-Dive ChecksB. Post-Dive Care 7.1 PROPER PROCEDURE FOR WARRANTY PAPERWORK 7.0 TWO YEAR WARRANTY AND MAINTENANCE INFORMATION7.2 SCHEDULED MAINTENANCE CATALOG # 6204 Goodrich Road Clarence Ctr, New York ALL PRODUCTS SUBJECT TO CHANGE WITHOUT NOTICEAll other names are trademarks of their respective owners Part Number S-MAN2004