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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.
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.
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.
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.
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.