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TABLE OF CONTENTS
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1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
2.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.1 SRB3300 (Magnum II, SRB3400 (Oasis)
and SRB3500 (Oasis+) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3.0 O-ring Reference Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
4.0 First Stage Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4.1 Tools Required for First Stage Servicing . . . . . . . . . . . . . . . .5
4.2 Disassembly of First Stage . . . . . . . . . . . . . . . . . . . . . . . . . .5
4.3 Assembly of First Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.4 Testing of First Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.0 Second Stage Procedures . . . . . . . . . . . . . . . . . . . . . . . . .12
5.1 Tools Required for Second Stage Servicing . . . . . . . . . . . . . .12
5.2 Disassembly of Second Stage . . . . . . . . . . . . . . . . . . . . . . . .12
5.3 Assembly of Second Stage . . . . . . . . . . . . . . . . . . . . . . . . . .14
5.4 Set-Up of Second Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5.5 Testing of Second Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
6.0 Helpful Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.1 Troubleshooting Regulators . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.2 Parts Cleaning Recommendations . . . . . . . . . . . . . . . . . . . . .21
6.3 Commonly Used Cleaning Solutions . . . . . . . . . . . . . . . . . . .21
6.4 Handling Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
7.0 Two Year Warranty and Maintenance Information . . . . . . .23
7.1 Proper Procedure for Warranty Paperwork . . . . . . . . . . . . . .23
7.2 Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
BEFORE YOU BEGIN.....
READ THESE INSTRUCTIONS COMPLETELY BEFORE YOU BEGIN SERVICING THE
REGULATOR.
THESE INSTRUCTIONS ARE INTENDED FOR PEOPLE WHO HAVE BEEN AUTHORIZED BY
SHERWOOD TO REPAIR SHERWOOD SCUBA EQUIPMENT. IF YOU ARE NOT SO
AUTHORIZED - STOP.