Kirby Morgan 17A/B User manual

SuperLite®17A/B Helmet
Operations and Maintenance Manual
KMDSI Part # 100-001
Kirby Morgan Dive Systems, Inc.
1430 Jason Way
Santa Maria, CA 93455, USA
Telephone [phone], FAX [phone]
E-Mail: [e-mail], Web Site:www.KirbyMorgan.com
DANGER: Diving with compressed breathing gas is a hazardous activ-
ity. Even if you do everything right there is always the danger that you may
be killed or injured. No piece of diving equipment can prevent the possibility
that you may be killed or injured any time you enter the water.
Manual prepared by SaltShaker Marine Industries, Inc., Dive Lab, Inc., and KMDSI. 08/ 04.
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Document # 040809001, Aug. 2004
NOTE: This manual is the most current for the SuperLite 17A/B Helmet.It is page dated August 2004. Future changes
will be shown on page III and the changed pages will carry the date of change. Previous manuals may not reflect
these updates.
SuperLite, Band Mask, KMB, KMB Band Mask, Kirby Morgan, DSI, Diving Systems International, EXO, SuperFlow and DECA
are all registered trademarks of Kirby Morgan Dive Systems, Inc. Use of these terms to describe products that are not manufactured
by KMDSI is not permitted.
The two dimensional images (such as photographs and illustrations) of our products are © copyrighted and trademarks of Kirby
Morgan Dive Systems, Inc. The three dimensional forms of our products are trademark/trade dress protected.
© Copyright 1970-2003 Kirby Morgan Dive Systems, Inc.All rights reserved. This manual is made available for the express use of
owner of this Kirby Morgan product. No part of this manual may be reproduced, stored in any retrieval system, or transmitted, or
used in any form or by any means, whether graphic, electronic, mechanical, photocopy, or otherwise by technology known or
unknown, without the prior written permission of Kirby Morgan Dive Systems, Inc.
The SuperLite-17A/B helmet is CE Approved #16309-01HH and meets or exceeds all performance
and testing requirements of all government and non-government testing agencies throughout the
world. It is approved for use on all commercial and military work underwater. Only Kirby Morgan
masks and helmets have achieved the CR (Commerial Rated) mark, the highest United States of
America rating.

SUPERLITE-17 A/B
PAGE II © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
WARRANTY INFORMATION
Kirby Morgan Dive Systems, Inc. warrants every new mask, helmet, or KMACAir Control System to be
free from defects in workmanship for a period of ninety (90) days from date of purchase. This warranty
covers all metal, fiberglass, and plastic parts. This warranty does NOT cover rubber parts, communica-
tions components, or headliners. In addition, due to the electrolytic nature of underwater cutting and
welding, chrome plating cannot be warranted when the diver engages in these activities.
Should any part become defective, contact the nearest authorized KMDSI dealer. If there is no dealer in
your area, contact KMDSI directly at [phone].You must have a return authorization from KMDSI
prior to the return of any item, Upon approval from KMDSI, return the defective part, freight prepaid, to
the KMDSI plant. The part will be repaired or replaced at no charge as deemed necessary by KMDSI.
This warranty becomes null and void if:
1) The product is not registered with KMDSI within ten (10) days of purchase.
2) The product has not been properly serviced and/or maintained according to the appropri-
ate KMDSI manual. In addition, the user is responsible to ensure that all product updates
as recommended by KMDSI have been performed.
3) Unauthorized modifications have been made to the product.
4) The product has been abused or subjected to conditions which are unusual or exceed the
product’s intended service.
NOTE: Be sure to complete the enclosed warranty card and return it to KMDSI immediately. No war-
ranty claims will be honored without a satisfactorily completed warranty card on file at KMDSI.

SUPERLITE-17 A/B
PAGE III
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
It is the responsibility of the owner of this product to register their ownership with Kirby Morgan Dive
Systems, Inc., by sending the warranty card provided. This card is to establish registration for any necessary
warranty work and as a means of communication that allows KMDSI to contact the user regarding this prod-
uct. The user must notify KMDSI of any change of address by the user or sale of the product.
All changes or revisions to this manual must be recorded in
this document to ensure that the manual is up to date.
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RECORD OF CHANGES

SUPERLITE-17 A/B
PAGE IV © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
DANGER: Diving with compressed breathing gas is a hazardous activity. Even if you do
everything right there is always the potential for serious injury or death. No one piece of diving
equipment can prevent the possibility that you may be injured or killed any time you enter the water.
We do not herein make any effort to teach the principles of diving.The information in this manual is
intended for users of SuperLite helmets and persons that maintain or service SuperLite helmets.
Table of Contents
GENERAL INFORMATION CHAPTER 1.0
1.1 Introduction ........................................................................................................................................... 1
1.2 The Kirby Morgan Diving Helmets, Masks andAir Control System ................................................... 2
1.3 SuperLite 17A/B Design Features......................................................................................................... 5
1.4 Operational Specifications SuperLite-17A/B ....................................................................................... 5
1.5 General Description............................................................................................................................... 6
1.5.1 Helmet Shell .................................................................................................................................... 6
1.5.2 Gas Flow Systems ........................................................................................................................... 6
1.5.3 Emergency Gas Supply System....................................................................................................... 8
1.5.4 Helmet Attachment to the Diver...................................................................................................... 9
1.5.5 Sealing Arrangement ....................................................................................................................... 9
1.5.6 Reducing Carbon Dioxide ............................................................................................................... 9
1.5.7 Communications.............................................................................................................................. 9
1.5.8 Equalizing the Sinuses and Inner Ear .............................................................................................. 9
1.5.9 Face Port or Viewing Lens ............................................................................................................ 10
1.5.10 Latch Catch Assembly, Pull Pin .................................................................................................. 10
Chapter 2.0 OPERATING INSTRUCTIONS............................................................................................ 11
2.1 Introduction ......................................................................................................................................... 11
2.2 Design Purpose .................................................................................................................................... 11
2.3 First Use of SuperLite-17A/B ............................................................................................................. 12
2.3.1 Head Cushion ................................................................................................................................ 12
2.3.2 Trimming the Neck Dam (2) ......................................................................................................... 12
2.4 Pre Dress-In Procedure Utilize APPENDIX A2.3............................................................................... 13
2.4.1 Pre-Dive Visual Inspection ............................................................................................................ 13
2.5 Preparing the Helmet for Diving ......................................................................................................... 14
2.5.1 Clean Face Port.............................................................................................................................. 14
2.5.2 Check Moving Parts ...................................................................................................................... 14
2.5.3 Check Communications................................................................................................................. 14
2.5.4 One-way Valve Check ................................................................................................................... 14
2.6 Emergency Gas System (EGS)............................................................................................................ 14
2.7 Setting Up to Dive ............................................................................................................................... 16
2.7.1 Flushing Out the Umbilical ........................................................................................................... 16
2.7.2 Connecting the Helmet to the Umbilical ...................................................................................... 16
2.7.3 Opening the Helmet Breathing Gas Supply .................................................................................. 17
2.7.4 Fogging Prevention ....................................................................................................................... 18
2.7.5 Donning the SL-17, utilize Appendix A2.3 ................................................................................... 18
2.7.6 Testing the Breathing System ........................................................................................................ 22
2.8 Diving Procedures ............................................................................................................................... 22
2.8.1 Standing By to Dive ...................................................................................................................... 22
2.8.2 Attaching the Umbilical to the Harness......................................................................................... 22
2.8.3 Diver Dons Helmet........................................................................................................................ 22

SUPERLITE-17 A/B
PAGE V
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
2.8.4 Diver Check Gas Flow Systems .................................................................................................... 22
2.8.5 Communications Check................................................................................................................. 23
2.8.6 Diver Ready, Supervisor utilize appendix A2.4 ............................................................................ 23
2.8.7 Water Entry and Descent ............................................................................................................... 23
2.9 Emergency Procedures ........................................................................................................................ 23
2.9.1 Flooding......................................................................................................................................... 23
2.9.2 Inhalation Resistance..................................................................................................................... 24
2.9.3 Loss of Umbilical Pressure............................................................................................................ 24
2.9.4 Demand Regulator Free Flow........................................................................................................ 24
2.10 Post Dive Procedures,........................................................................................................................ 24
2.10.1 Removing the Equipment ............................................................................................................ 24
2.10.2 Removing the SuperLite-17 A/B ................................................................................................. 24
2.10.3 Storage of the Helmet Between Dives, ensure A2.6 is accomplished......................................... 25
CHAPTER 3.0 TROUBLESHOOTING .................................................................................................... 27
3.1 General................................................................................................................................................ 27
3.2 Communications Malfunction ............................................................................................................ 27
3.3 One Way Valve Malfunction............................................................................................................... 28
3.4 Side Block Malfunction...................................................................................................................... 28
3.5 Demand Regulator Malfunction ......................................................................................................... 29
3.6 Water Leakage Into Helmet ................................................................................................................ 30
3.7 EGS Valve Malfunction...................................................................................................................... 30
CHAPTER 4.0 INSPECTION MAINTENANCE TIMETABLE FOR SUPERLITE-17 A/B .............. 31
4.1 Daily Maintenance............................................................................................................................... 31
4.2 Monthly Maintenance.......................................................................................................................... 31
4.3 Annual or 400 Operating Hours........................................................................................................... 31
SECTION 5.0 GENERAL PREVENTATIVE MAINTENANCE............................................................ 33
5.1 Introduction ......................................................................................................................................... 33
5.2 Required Tools, Cleaning Agents, Lubrication....................................................................................33
5.3 General Cleaning and Inspection procedures ......................................................................................35
5.3.1 O-Ring Removal/Inspection/Cleaning and Lubrication:...............................................................35
5.3.2General Cleaning Guidelines:......................................................................................................... 36
5.3.2.1 Detergent Solution for General Cleaning and Leak Detector Use: ............................................ 36
5.3.2.2 Acidic Cleaning Solution and Procedures: ................................................................................. 36
5.3.2.3 Germicidal Cleaning Solutions and Procedure:.......................................................................... 36
5.4 Daily Maintenance/Lubrication........................................................................................................... 37
5.5 Monthly Maintenance.......................................................................................................................... 39
5.5.1 Yoke/Neck clamp Assembly .......................................................................................................... 39
5.5.2 Helmet O-Ring .............................................................................................................................. 39
5.5.3 Head Cushion ................................................................................................................................ 39
5.5.4 Communications Inspection .......................................................................................................... 39
5.5.5 Lubricate Nose Block O-Rings (105, 106 (2)) .............................................................................. 39
5.5.6 Emergency Valve Assembly (58)................................................................................................... 40
5.5.7 Steady Flow/Defogger Valve (32-41)............................................................................................ 40
5.5.8 Bias Device (138c) ........................................................................................................................ 40

SUPERLITE-17 A/B
PAGE VI © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
CHAPTER 6 BREATHING SYSTEM MAINTENANCE AND REPAIRS............................................ 41
6.1 Introduction ......................................................................................................................................... 41
6.2 One-way Valve .................................................................................................................................... 41
6.2.1 Disassembly of the One-way Valve............................................................................................... 41
6.2.2 Reassembly of the One-way Valve................................................................................................ 42
6.3 Side Block Assembly........................................................................................................................... 43
6.3.1 General........................................................................................................................................... 43
6.3.2 Side block Assembly Removal ...................................................................................................... 43
6.3.2.1 Removal of Bent Tube Assembly (17B).................................................................................. 43
6.3.2.2 Disconnecting the Hose Assembly (17A)................................................................................ 44
6.3.3 Separating the Side Block Assembly (70a/b) from the Helmet Shell (92).................................... 44
6.3.4 Side block Assembly Replacement................................................................................................ 45
6.4 Defogger Valve .................................................................................................................................... 46
6.4.1 Disassembly of the Defogger Valve (32-41) ................................................................................. 46
6.4.2 Cleaning and Lubricating use Section 5.3.2 .................................................................................. 47
6.4.3 Reassembly of the Defogger Valve ............................................................................................... 47
6.5 Emergency Valve Assembly (58)......................................................................................................... 48
6.5.1 Disassembly of the Emergency Valve Assembly (58)................................................................... 48
6.5.2 Cleaning (See Section 5.3.2 and Lubricating section 5.3.1).......................................................... 49
6.5.3 Reassembly of Emergency Valve (50)........................................................................................... 50
6.6 Bent Tube Assembly............................................................................................................................ 51
6.6.1 General........................................................................................................................................... 51
6.6.2 Removal of the Bent Tube Assembly ............................................................................................ 51
6.6.3 Inspection of Bent Tube Assembly................................................................................................ 52
6.6.4 Reinstallation of Bent Tube Assembly .......................................................................................... 52
6.7 Hose Assembly (SL-17A only)............................................................................................................ 52
6.7.1 Hose Assembly Removal............................................................................................................... 52
6.7.2 Hose Assembly Inspection “A style side block” ........................................................................... 52
6.7.3 O-Ring Replacement ..................................................................................................................... 53
6.7.4 Hose Assembly Replacement ........................................................................................................ 53
6.8 Demand Regulator............................................................................................................................... 53
6.8.1 Demand Regulator Test for Correct Adjustment, Regulator Fully Assembled: ............................ 53
6.8.2 Inspection of Regulator Body Interior........................................................................................... 54
6.8.3 Demand Regulator Bias Adjustment Servicing, Demand Regulator on the Helmet. .................... 55
6.8.4 Reassembly of Adjustment System ............................................................................................... 56
6.8.5 Demand Regulator Assembly Removal From Helmet .................................................................. 57
6.8.6 Disassembly of the Demand Regulator ......................................................................................... 57
6.8.7 Inspection of Demand Regulator Parts.......................................................................................... 58
6.8.8 Cleaning and Inspection of Demand Regulator Parts.................................................................... 59
6.8.9 Reassembly of the Demand Regulator .......................................................................................... 59
6.8.10 Tuning the Regulator ................................................................................................................... 61
Important Notes on RegulatorAdjustment........................................................................................... 62
6.8.11 Regulator Steady Flows When Pressured Up - Key items to check per Section 6.8.10.............. 63
6.8.12 Regulator has Low or No Flow When Pressurized ..................................................................... 63
6.8.13 Unexplained Demand Regulator Free Flow: ............................................................................... 63
6.9 Oral/Nasal............................................................................................................................................ 64
6.9.1 Oral/Nasal Removal ...................................................................................................................... 64
6.9.2 Inspection of Oral/Nasal................................................................................................................ 64
6.9.3 Oral/Nasal Replacement ................................................................................................................ 64
6.10 Whisker‘ Exhaust Systems: ............................................................................................................... 64
6.10.1 Standard Old Style Single Exhaust Whisker‘ PN# 510-554 ....................................................... 65
6.10.2 Reinstalling the Whisker ............................................................................................................. 66
6.10.3 Double Exhaust Whisker Cleaning and Overhaul, Whisker PN# 525-102 ................................ 66

SUPERLITE-17 A/B
PAGE VII
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
6.10.4 Tri-Valve Exhaust® Whisker....................................................................................................... 68
6.11 Exhaust Assembly.............................................................................................................................. 70
6.11.1 Main Exhaust Valve Removal ..................................................................................................... 70
6.11.2 Main Exhaust Valve Replacement ............................................................................................... 70
6.11.3 Main Exhaust Body ..................................................................................................................... 70
6.11.4 Main Exhaust Body Replacement ............................................................................................... 71
6.12 Overpressure Relief / Bleed Valve Overhaul Procedure: .................................................................. 71
6.12.1 Overpressure Relief Valve ........................................................................................................... 71
6.12.2 Overpressure Relief Valve Disassembly and Cleaning: ..............................................................72
6.12.3 Overpressure Relief Valve Reassembly:...................................................................................... 72
6.12.4 Overpressure Relief Valve Lift Check/Setting: ........................................................................... 72
CHAPTER 7.0 CORRECTIVE MAINTENANCE................................................................................... 75
7.1 General................................................................................................................................................. 75
7.2 Yoke/Neck Clamp Assembly (14) and Helmet Shell (92) Inspection ................................................. 75
7.3 Nose Block Assembly.......................................................................................................................... 76
7.3.1 Nose Block Assembly Removal .................................................................................................... 76
7.3.2 Nose Block Device Replacement .................................................................................................. 76
7.4 Handle and Weights ............................................................................................................................. 76
7.4.1 Handle Removal ............................................................................................................................ 76
7.4.2 Handle Replacement...................................................................................................................... 77
7.4.3 Weight Removal ............................................................................................................................ 77
7.4.4 Weight Replacement ...................................................................................................................... 78
7.5 Alignment Sleeve................................................................................................................................. 79
7.5.1 Sleeve Removal and Inspection..................................................................................................... 79
7.5.2 Sleeve Replacement....................................................................................................................... 79
7.6 Port Retainer ........................................................................................................................................ 79
7.7 Face Port .............................................................................................................................................. 79
7.7.1 General........................................................................................................................................... 79
7.7.2 Face Port and Nose Block Device Removal.................................................................................. 79
7.7.3 Face Port and Nose Block Replacement........................................................................................ 80
7.7.4 Special Note Regarding Ports........................................................................................................ 82
7.8 Communications System ..................................................................................................................... 82
7.8.1 General........................................................................................................................................... 82
7.8.2 Earphone Inspection ...................................................................................................................... 82
7.8.3 Microphone Removal and Replacement........................................................................................ 82
7.8.4 Earphone Removal and Replacement............................................................................................ 83
7.8.5 Waterproof Connector ................................................................................................................... 83
7.8.5.1 Connector Removal .................................................................................................................... 84
7.8.5.2 Connector Replacement.............................................................................................................. 84
7.8.6 Communications Posts .................................................................................................................. 84
7.8.6.1 Communications Post Removal ................................................................................................. 84
7.8.6.2 Communications Post Replacement ........................................................................................... 84
7.9 Neck Clamp/Yoke Assembly ............................................................................................................... 85
7.9.1 Yoke ............................................................................................................................................... 85
7.9.1.1 Yoke Removal and Disassembly ............................................................................................. 85
7.9.1.2 Yoke Replacement and Reassembly ........................................................................................ 86
7.9.2 Latch Catch Assembly ................................................................................................................... 86
7.9.2.1 Latch Catch Mechanism Disassembly..................................................................................... 86
7.9.2.2 Latch Catch Mechanism Reassembly...................................................................................... 87
7.9.3 Neck Clamp Assembly ..................................................................................................................... 87
7.9.3.1 Neck Clamp Assembly Adjustment /Inspection ......................................................................... 87

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PAGE VIII © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
7.9.4 Neck Dam ........................................................................................................................................... 89
7.9.4. Neck Dam Replacement Pre-84 and Cold Water Type Neck-Dam Installation ........................... 89
7.10 O-Ring Seal Replacement .............................................................................................................. 92
7.11 Head Cushion Foam Replacement.................................................................................................. 93
CHAPTER 8 ACCESSORIES..................................................................................................................... 95
8.1 Introduction ......................................................................................................................................... 95
8.2 Hot Water Shroud Installation Procedures .......................................................................................... 95
8.3 Low Pressure Inflator Hose ................................................................................................................. 97
8.4 Weld Lens & Weld Shield Assemblies ................................................................................................ 98
8.5 Use of Quick Disconnect..................................................................................................................... 99
8.6 Double Exhaust Installation................................................................................................................. 99
Table of Equivalents ..................................................................................................................................... 103
APPENDICES
APPENDIX 1 Torque Specifications..................................................................................................... 104
APPENDIX A2 Maintenance and Inspection Procedures........................................................................ 105
APPENDIX A2.1 Overhaul, Maintenance, and Inspection Checklist......................................................... 107
APPENDIX A2.2 Monthly Inspection and Maintenance Checklist ............................................................ 115
APPENDIX A2.3 Helmet and Emergency Gas System Daily Setup and Functional Checklist ................. 122
APPENDIX A2.4 Supervisor’s Equipment Checks Prior to Entry into Water............................................ 127
APPENDIX A2.5 Supervisor’s In-Water Checks........................................................................................ 130

SUPERLITE-17 A/B
PAGE IX
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
DEFINITION OF SIGNALWORDS USED IN THIS MANUAL
For your protection, pay particular attention to items identified by signal words in this manual. These terms are identified
as, CAUTION, WARNING AND DANGER. It is especially important for you to read and understand these sections.
DANGER:This word indicates an imminently hazardous situation, which if not avoided, could
result in death or serious injury.
WARNING:This word indicates a potentially hazardous situation, which, if not avoided, could
result in death or serious injury.
CAUTION:This word indicates a potentially hazardous situation, which if not avoided, may
result in minor or moderate injury. It may also be used to alert against unsafe practices.
If English is not your native language and you have any difficulty understanding the language of any warnings as they
appear in the manual, please have them translated.
WARNING: Este é um aviso importante. Queira mandá-lo traduzir.
WARNING: Este es un aviso importante. Sirvase mandario traducir.
WARNING: Quest è un avviso importante.Tradurlo.
WARNING: Ceci est important.Veuillez traduire.
WARNING: Diese Mitteilung ist wichtig. Bitte übersetzen lassen.
If you have any questions concerning this manual or the operation of your helmet, contact KMDSI [phone] or
by Email at [email protected] or Dive Lab Inc. [phone] or at [email protected]
IMPORTANT: A word about this manual. We have tried to make this manual as comprehensive and factual
as possible. We reserve the right however, to make changes at any time, without notice, in prices, colors, materials,
equipment, specifications, models and availability. Since some information may have been updated since the time of
printing, please contact your local KMDSI dealer if you have any questions. Periodically KMDSI Operations and
Maintenance Manuals are reviewed. Any updates/changes will be posted on the KMDSI website and may be down-
loaded for insertion/correction.
Important Safety Information:
This SuperLite 17 diving helmet is intended for use by trained divers who have successfully completed a recognized
training course in surface supplied diving.
WARNING: Follow all the instructions in this manual carefully and heed all safety precau-
tions. Improper use of this diving helmet could result in serious injury or death.

SUPERLITE-17 A/B
PAGE X © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
DANGER: Kirby Morgan Dive Systems, Inc. (KMDSI) warns all divers who use the SuperLite
17A/B diving helmet to be sure to use only KMDSI original parts from a KMDSI authorized dealer.
Although other parts, O-rings and fittings may appear to fit on the SuperLite 17A/B diving helmet,
they may not be manufactured to the same standards maintained by KMDSI.The use of any parts
other than KMDSI original parts may lead to equipment failure and accidents.
DANGER: Diving in waters that are chemically, biologically, or radiologically contaminated is
extremely hazardous. Although the SuperLite 17A/B diving helmet may be adapted for use in some
contaminated environments, special training, equipment, and procedures are necessary. Do not
dive in a contaminated environment unless you have been thoroughly trained and equipped for this
type of diving.
Read this manual before using or maintaining the helmet, even if you have experience with other diving helmets. If
you have purchased the helmet new from a dealer, be sure to send in the warranty registration card so we may
keep you informed of any safety notices that affect this product. If you resell or loan this helmet to another diver,
be sure this manual accompanies the helmet and that the person reads and understands the manual. In addition to the
manual a log book should be used to log all repairs, maintenance and use.
DANGER: Diving is a life threatening occupation. Even if you do everything right you can
still be killed or injured. None of the models of Kirby Morgan helmets or masks can prevent acci-
dents, injuries or death due to improper training, poor-health, improper supervision, improper job
requirements, improper maintenance or acts of God.
WARNING:This helmet was completely checked and should be ready to dive as it was
shipped from the factory. However, it is always the diver’s responsibility to check all the compo-
nents of the helmet prior to diving.
WARNING: Any and all fiberglass repairs done to this helmet MUST be done by a KMDSI
factory trained repair facility. Painting is not recommended by KMDSI. Furthermore, many diving
companies will not allow painted helmets to be used because painting can mask previous fiber-
glass damage. KMDSI certified technicians are not responsible for certifying helmets free from
damage during annual overhauls. Helmet shells can be re-gel coated by authorized/certified KMDSI
trained technicians that have received fiberglass training by KMDSI. Helmets that are to be painted
for cosmetic purposes, should be first, certified free of fiberglass damage by an authorized KMDSI
technician certified in fiberglass repair. A log entry should be made in the helmet log that the hel-
met was free of damage prior to painting. Keep in mind other KMDSI technician can refuse to work
on helmet shells that have previously been painted or repaired by non KMDSI certified persons.
This manual is supplied to the original purchaser of this helmet. If you have any questions about the use of the helmet
or you need another copy of this manual, Part Number 100-001, contact KMDSI or your nearest KMDSI dealer or
may be downloaded free from the KMDSI website at www.KirbyMorgan.com. If you have any questions regarding
the use, maintenance, or operation of this helmet, contact KMDSI at [phone], fax: [phone], or e-mail:
[email protected].

SUPERLITE-17 A/B
PAGE XI
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
DANGER: Kirby Morgan masks and helmets are not cleaned and/or lubricated for oxygen
service. Using this helmet with oxygen percentages above 50% by volume without first cleaning it
for oxygen service may lead to fire or explosions, which can result in serious injury or death.
Kirby Morgan helmets and masks must not be used with oxygen breathing mixtures in excess of 50% by volume
without first insuring all gas-transporting components have been cleaned for oxygen service. Components requiring
lubrication, should only be lubricated with oxygen compatible lubricants such as and Christo Lube®, Flourolube®, or
Krytox®.. Lubricants must be used sparingly and should not be mixed with other lubricants.
DANGER: KMDSI helmets and masks are intended for underwater use only and should only
be used by qualified divers that have received proper training in the use of this type of equipment.
KMDSI helmets and masks should not be used or worn without the appropriate life support sys-
tems, such as air or gas supplies and support personnel as described in this manual. KMDSI hel-
mets and masks should never be used for motor sport racing, aviation / space craft use, or for
chemical warfare use.The helmet must never be used by persons in poor physical condition, by
persons with previous head neck or back injuries which could be aggrivated by its use.The helmet
should not be used by persons under the influence of drugs or alcohol. Furthermore, infants,
children, or persons under the age of 18 should never wear KMDSI helmets and masks. Failure to
pay heed to the above could result in serious injury or death.
DANGER: Never use the helmet without first completing all pre-dive maintenance and set up
procedures.
DANGER: Do not use KMDSI masks or helmets in currents exceeding 3.0 knots Use in cur-
rents greater than 3 knots may allow water to enter the exhaust valve, possibly causing Regulator
flooding.
WARNING: Surface-supplied diving can be a strenuous activity.The SL-17A/B weighs ap-
proximately 26 lbs. KMDSI recommends that persons with a previous neck or back injury seek
professional medical approval prior to engaging in surface supplied diving operations using the
SL-17A/B. Use of the SL-17A/B with a predisposed physical/medical condition may result in death
or serious injury.
The information contained in this manual is intended to aid the user in optimizing the performance of this helmet. The
application of some of this information will depend on the diving situation and the use of associated equipment. Many
countries have specific laws and rules regarding commercial diving. It is important for the user to understand the
rules, regulations, and philosophy imposed by the governing, regulating bodies whenever using commercial diving
equipment. Whenever KMDSI helmets or masks are used in European Countries, which have adopted the C.E.
certification programs, they must only be used with C.E. certified components. Diving operations should only be
conducted within the limits of the operational specifications, and in accordance with the rules and regulations estab-
lished by the governing authority in the specific country or geographical location where the diving operations are
being conducted. If you have any questions concerning this manual or the operation of your helmet, contact KMDSI
[phone] or at [email protected] or Dive Lab Inc. [phone] or at [email protected]

Neck clamp
Handle
Regulator
Sideblock
Port retainer
Non-return valve
EGS valve
Waterproof communications connector
Helmet shell
Fig. 1.1 The SuperLite-17B helmet
with optional waterproof connector.
Regulator
adjustment knob
Defog free flow valve knob
Rear weight
Neck dam
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved.
Nose block
Neck clamp
Neck dam
Yoke
Latch catch
Tri-Valve Exhaust
(standard on all
17 A/B helmets
from 2004 on)
Note: Neck dam/yoke
assembly is shown upside
down for purposes of illus-
tration only.
Yoke strap
Yoke strap

SUPERLITE-17 A/B
PAGE 1
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
This manual will refer to location numbers in specific drawings, or in the exploded view, which is in
the back of this manual. These numbers are called “location” numbers. They are used to find the
referred to parts in the drawings in this manual only. They are not the part number. Next to the
exploded drawing is a list of the “location” numbers that match the Kirby Morgan part numbers
along with the name of the part. Always check the part number when ordering to make sure it is
correct. When ordering, always specify the helmet model number and serial number as well.
TheKirbyMorganCorporation was started in 1965. The
copper and brass “heavy gear” or “Standard Dress” hel-
mets were the first helmets manufactured by the com-
pany. Over the years Kirby Morgan designed, manufac-
tured and sold many different helmets and masks for
commercial divers.
Staying active in commercial diving has contributed to
the successful design innovations of KMDSI products.
This may be the primary reason for the acceptance of
our designs by professional divers.
Bev Morgan has designed more than Fifty-Seven div-
ing helmets and over 40 diving masks. All employees
of KMDSI participate as part of the Kirby Morgan
design team. It would not be possible for us to supply
the commercial, military, scientific, and public service
diving industries with our equipment, without the team
of people that make up Kirby Morgan Dive Systems,
Inc. (KMDSI)
We feel it is important for the reader to understand that
we at KMDSI consider ourselves as only part of the pro-
cess along the path in diving equipment design. We
welcome all input from our customers. The thinking of
many good divers, diving equipment engineers, diving
medical specialists, diving organization administrators
and their supporting personnel has contributed to the
current state of the art of diving.
Each piece of gear we manufacture has in it some of the
thinking of those who have gone before us. To all those
people who give something of themselves to the men and
women who work underwater, we express a thank you.
We have a strong commitment to providing the best div-
ingequipmentandservicepossible.This thinking has been
the policy of Kirby Morgan Dive Systems, Inc. and we
will continue to take this approach to our work.
Ourextensivedealernetworkmakesiteasy to obtain genu-
ine Kirby Morgan replacement parts, as well as technical
assistance worldwide.
CHAPTER 1.0
GENERAL INFORMATION
1.1 Introduction
Fig. 1.2 Bev Morgan
Chairman of the board
Kirby Morgan Dive Systems
STOP!
BEFORE GOING FURTHER-

PAGE 2 © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
CHAPTER 1 - GENERAL INFORMATION
KMDSI has always concentrated on designing and manu-
facturing diving equipment that allows most repairs, in-
spections, and all routine maintenance to be performed
by the user. The SuperLite-17 A/B is no exception. Most
routine preventative and corrective maintenance can be
accomplished by the user utilizing this manual, the
KMDSI Tool Kit (P/N 525-620) and common hand tools.
Technician training is available through Dive Lab Inc.,
information can be obtained on line at www.divelab.com
or by telephone at 850-235-2715.
1.2 The Kirby Morgan Diving Helmets, Masks
and Dive Control System
All Kirby Morgan diving helmets and masks are manu-
factured by Kirby Morgan Dive Systems, Inc. (KMDSI).
Each step of the manufacturing process is carefully con-
trolled to assure the customer of a high quality, durable
helmet that will function properly for many years.
There are six Models of Kirby Morgan diving helmets
currently in production. They are the SuperLite-17 A/B,
MK-21 (U.S. Navy version), the SuperLite-17C, the
SuperLite-17K and the SuperLite-27+,Kirby Morgan 37.
All are approved and marked.
The SuperLite-17 A/B was first developed in 1975 and
quicklyset a new standard for diving helmet design. Many
large and small commercial diving companies, military
organizations, scientific divers, and public safety divers
are successfully using this design around the world.
The SL-17 A/B helmet system consists primarily of two
major components: the neck dam/yoke assembly, and the
helmet. To don the helmet, the diver first slips the angled
neck dam with the attached yoke over his head. The hel-
met is lowered onto the diver’s head with the help of a
tender, then the yoke hinge tab is hooked onto the align-
ment screw on the rear weight. The neck clamp is then
slipped onto the helmet and locked. The locking system
not only seals the neck dam to the helmet but also secures
the front of the yoke, fastening the helmet to the diver’s
head.
The SuperLite-17A/B shares many common breathing
system parts with all Kirby Morgan helmets and masks.
The breathing system has been man-tested to 1600 FSW
by the University of Pennsylvania and approved by the
U.S. Navy for surface-supplied diving to 190 FSW with
air and 300 FSW with mixed gas. It surpasses all require-
ments of all governing agencies and it is approved for
commercial diving through out the world.
SuperLite 17A/B Kirby Morgan 37
Yoke and Latch Catch
Assembly Neck Pad and
Sealed Pull Pins.
™
approved and marked
™approved and marked
™

SUPERLITE-17 A/B
PAGE 3
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
Other features that are common to all Kirby Morgan
helmets and Band Masks include:
* Face port and retainer ring
* Communications components
* Oral/nasal mask
* Nose block device
* Air train defogger
The Kirby Morgan 37 Commercial Diver’s Helmet rep-
resents what we at Kirby Morgan consider to be the pin-
nacle of current diving helmet design. The helmet con-
sistsof two major assemblies: the helmet shell/helmet ring
assembly and the neck dam/neck ring assembly.
The helmet comes with the large tube SuperFlow 350 ad-
justabledemandregulatorwhichprovidesan easier breath-
ing gas flow during peak work output. A quick change
communications module is available with either bare wire
posts or a waterproof connector.
The helmet ring houses the Sealed Pull Pins and provides
protection for the bottom end of the helmet. The diver is
also provided with an externally adjustable chin support.
This custom fit and balance seats the helmet comfortably
for long periods of time even when working in the face
down position.
The SuperLite 27 Commercial Diver’s Helmet has all
the same features of the KM37 on a smaller, low volume
shell design. This helmet is often preferred by persons
with smaller heads.
The chrome plated machined brass Helmet Neck Ring
houses the Sealed Pull Pins and provides protection for
the bottom end of the helmet. Like the SL-17K, 37 and
17C, the diver is provided with an externally adjustable
chin support. This support, along with the adjustable neck
pad on the locking collar, gives the diver a comfortable,
secure, custom fit.
Thequick-changecommunicationsmodule,availablewith
either bare wire posts or a waterproof connector, allows
for easy, efficient maintenance of the helmets communi-
cations.
The Helmet also features the SuperFlow 350 large tube
adjustable demand regulator. The Helmet is available in
the umbilical over the shoulder, “B” configuration only.
The KMB 18 A/B Band Mask frame is constructed of
hand laid fiberglass. The head harness is a molded, strong
tear resistant neoprene rubber. The hood, which attaches
to the mask frame with welded stainless steel bands, pro-
vides warmth for the divers head as well as pockets for
the earphones. The communications connections can be
either a male waterproof plug in type or bare wire posts.
The KMB 28B Band Mask (not shown) is very similar
to the KMB 18, with many parts on the KMB 18B being
interchangeable with the KMB 28B. The major differ-
ence between the 18 and 28 is the material of the mask
frame itself. The KMB 18 has a fiberglass frame (yellow)
while the KMB 28B frame is an extremely durable injec-
tion molded plastic (black).
SuperLite 27A
SuperLite 18 A/B
approved and marked
™
approved and marked
™

PAGE 4 © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
CHAPTER 1 - GENERAL INFORMATION
Other differences include: 1) The main exhaust body of
the KMB 28 is part of the frame itself and uses a #545-
041 main exhaust cover 2) no comfort insert is required
on the 28 3) the face ports for the 18 and the 28 differ
slightly in size.
The EXO Full Face Mask is designed for both surface
supplied and scuba diving. By enclosing the divers eyes,
nose and mouth, the EXO permits nearly normal speech
whenused in conjunction with most wireless, and all hard-
wire underwater communication systems.
The ORIGINAL EXO (not shown) design comes with
automatic defogging, no oral nasal mask or nose block
device (optional conversion kits available). The Mask
Frame is black. The SuperMask M-48 is an innovative new design in a
full-face mask. It provides the diver with all the comfort
of a full-face mask with the convenience of changeable
second stage regulators as well as the ability to use a snor-
kel without having to remove the mask.
Themaskiscomprised of two major components,themask
frame and the interchangeable lower pod. The removable
lower pod is a feature unique to the SuperMask full-face
mask. When diving, the pod is easily removed and re-
placed on the mask, providing the diver the capability to
buddy-breathe, snorkel, use an octopus or perform an “in
water” gas switch.
With the pod sealed to the mask, the flexible, silicone pod
coverallowsthe diver to quicklyplacetheregulator mouth-
piece into the mouth or dive with it free of the mouth for
communications. With the mouthpiece in, the regulator
may be used without the pod being sealed to the mask.
The mask may also be used surface supplied. We are cur-
rently developing several different pod configurations for
both open circuit and rebreather use. For further informa-
tion, see the Frequently Asked Questions (FAQ) area on
ourwebsite at www.KirbyMorgan.com/products/faq.html
The Kirby Morgan Air Control Systems (KMACS) is
a lightweight, portable control box for use in surface sup-
plied air diving operations. The KMACS controls the
diver’s air supply, communications and monitors the
diver’s depth. It allows two divers clear push-to-talk (two
wire) or round robin (four wire) communications. The
KMACS is also available without communications.
EXO BR
SuperMask M-48
w/ Scuba Pod SuperMask M-48
w/ Rebreather pod
approved and marked
™
The EXO BR (BALANCED REGULATOR) shown
above is designed to meet or exceed recommended per-
formance goals in both scuba and surface supplied modes
and is approved. It meets and surpasses European
standards for regulator performance. The Balanced Regu-
lator helps reduce the work of breathing for the diver by
balancing the intermediate air pressure against the valve
sealingpressureinsidethe regulator. Thisenables the regu-
lator to instantly adjust to changes in line pressure. The
Balanced Regulator is adjustable for a wide range of in-
termediate pressures between 100 PSI - 230 PSI.
Both models have a modular communications design that
permits rapid and simple maintenance. The optional Hard
Shell provides surfaces for mounting lights, cameras etc.
approved and marked
™

SUPERLITE-17 A/B
PAGE 5
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
The air supply can be either from a low-pressure com-
pressor or high-pressure cylinders. The adjustable first
stage regulator reduces the high-pressure air and supplies
low pressure through the umbilical to the diver’s breath-
ing system. High pressure yokes permit U.S. standard
scuba cylinders to be used. Low-pressure air supply fit-
tings allow for a compressor to be used as the primary air
source. A complete pneumo system with dual reading
gauges(bothUSStandardandMetric)isprovidedforeach
diver’s air, as well as a shut-off/bleed system that uses
two high-pressure feed lines which allows changing of
used cylinders without interruption of the diving opera-
tion. Optional shut off valves allow the isolation of each
diver’s air supply.
The Communication Set is a multipurpose intercommu-
nication system that provides reliable and clear commu-
nications between a topside operator (tender) and one or
more surface-supported divers, recompression chambers,
or other submersible systems.
1.3 SuperLite 17A/B Design Features
The key features of the SuperLite-17A/B include:
1) The neck dam/yoke (14) design helps to maintain a
low volume in this helmet as well as retaining the helmet.
2) The head cushion (1) attaches just inside the bottom of
the helmet, keeping it in place when the diver dons the
hat. The standard head cushion consists of a brushed ny-
lon bag with an, open cell polyester foam inside
KMACS
w/ No Comunications
KMACS
w/ Communications
3) The helmet is available in two configurations. The Su-
perLite-17A (available by special request) accepts the
umbilical up the front of the diver’s chest.The SuperLite-
17B accepts the umbilical over the diver’s shoulder.
1.4 Operational Specifications:
SuperLite-17A/B
DANGER: Never use aerosol-propelled
sprays near the face port of any Kirby Morgan
diving helmet. The propellant used in these
aerosols can invisibly damage the face port and
cause it to shatter on impact from any strong
blow. If the face port fails underwater, risk of
injury or death may result.
Operational Specifications and Limitations:
- Maximum depth on air - 220 FSW (67 MSW) with the
old style single exhaust or new Tri-Valve Exhaust®.
- Maximum depth on air - 150 FSW (45.73 MSW) when
equipped with the old style double exhaust whisker as-
sembly.
- Maximum depth on HEO2 Surface Supplied, 330 FSW
(100 MSW)
- Work rate - Heavy - 62.5 - 75 l.p.m. RMV.
- Maximum current - 3 knots with standard exhaust, 5
knots with Tri Exhaust (see caution)
- Umbilical 3/8” Maximum length 600’ (183 MSW)
- Breathing Gas Requirements, 4.5 a.c.f.m. at the side
block at depth.
CAUTION: When diving in heavy current
(i.e. exceeding 3 knots) the single exhaust
system on all KMDSI masks/helmets could allow
water to enter, due to turbulence/eddying. It is
important for the user/diver to take excessive
currents into consideration. The Tri-Valve
Exhaust®system (Part # 525-102) will help
prevent water intrusion when diving in heavy
currents. Unlike the old double exhaust, the Tri-
Valve does not limit the diving depth.

PAGE 6 © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
CHAPTER 1 - GENERAL INFORMATION
Ifyou have any questions contact KMDSI [phone]
or at [email protected] or Dive Lab Inc. (850)
235-2715 or at [email protected]
- Umbilical minimum I.D. 3/8” (9.5 mm) of not more than
two sections, total length not to exceed 600 feet (183m).
Required overbottom gas supply pressure for depth is:
(fsw x 0.445+14.7) + required p.s.i.g.
This system has been used successfully for diving in bio-
logically contaminated environments for many years. To
further reduce the possibility of water intrusion regard-
less of the exhaust system being used, the diver should
avoid working in an inverted position.
The double exhaust has now been replaced by the Tri-
Valve System. The unique design of the Tri-Valve keeps
exhalation resistance low while maintaining excellent
watertight integrity.
CAUTION: Before attempting any diving
in any type of contaminated water, a complete
divingand topsidecourse in hazardousmaterials
emergencies should be completed. The divers
and the topside team must be properly trained
and have the proper safety equipment. All
helmets and suits can leak water under certain
conditions. Divers should use extreme caution
when diving in contaminated waters. For more
information see the book “Diving in High-Risk
Environments”by Steven M. Barsky.
1.5 General Description
1.5.1 Helmet Shell
The helmet shell (92) is fabricated of hand laid glass and
carbon fiber reinforced polyester resin, which will not
carry an electrical charge. This shell is the central struc-
ture for mounting all the components that make up the
complete helmet. It is designed to allow easy replacement
of parts when necessary. DO NOT PAINT OR REFIN-
ISH your helmet shell. Any repair to the helmet shell
must be done at an approved KMDSI repair center. Un-
authorized refinishing can hide potentially serious dam-
age to the shell and may result in refusal of repairs or
service by KMDSI authorized repair facilities.
1.5.2 Gas Flow Systems
The main gas supply flow from the umbilical enters the
system at the adapter (67) and flows through the one-way
valve (68) to the interior of the side block assembly (43a/
b). The one-way valve or “non-return” is a very impor-
tant component. It must prevent the flow of gas out of the
helmet to the umbilical in the event of a sudden lowering
of pressure in the supply hose. This can happen due to an
accidental break in the hose or a fitting near the surface.
Not only would the Emergency gas be lost if the one-way
valve failed (concurrent with a hose or fitting break on
deck), but also the diver would be “squeezed”, and the
helmetwouldinstantlyflood with water.Although we have
selected the valve for its reliability and quality, inspec-
tion and maintenance of this valve must be done regu-
NOTE:Thedemandregulatorand side block assemblies
have a maximum design pressure of 225 p.s.i.g. (15.5
bar) overbottom.
-Gassupplysystemcapable of supplying 4.5 a.c.f.m (127.4
BL/min) to the side block assembly at depth, at the above
recommended pressures.
-Temperature limitations: Use at water temperatures
below 36°F (2.220C) requires use of hot water shroud
(P/N 525-100, B configuration only) and hot water.
NOTE “The Hot Water Shroud (Part #525-100)
inconjunctionwith hot water tothedivershouldbe used
whenever diving operations are conducted using HEO2
at water temperatures less than 60
° F (15.56 ° C) for the
comfort of the diver. KMDSI further recommends that
the shroud be used in conjunction with hot water to the
diver whenever diving operations are conducted using
air or mixed gas, in waters colder than 36
° F (2.22 ° C) to
reduce the possibility of demand regulator icing.
NOTE: Usually the greatest danger of demand
regulator icing will be encountered on deck when the
surroundingairtemperatureis less than32
° F(0 ° C).This
effectisprimarilyduetothe refrigeration effectofbreath-
ing air pressure reduction, and the addition of moisture
from the divers exhalation coming in contact with the
topside air temperature. If diving where the water tem-
perature is 36
° F (2.22 ° C) or warmer but the topside air
temperature is below freezing, (32
° F (0 ° C) icing of the
demand regulator is possible. To help eliminate the pos-
sibilityof freezingonthe surface, warmwater should be
run over the exterior of the demand regulator prior to
water entry, if the hot water system is not used.
In the past, the optional Double Exhaust System (Part #
525-102) was available to reduce the possibility of back
flow of water and contaminants into the helmet .
Depth Pressure
FSW MSW P.S.I.G. bar
0-60 18.3 90 6.2
61-100 18.6-30.5 115 7.9
101-132 30.8-40.2 135 9.3
133-165 40.6-50.3 165 11.4
166-198 50.6-60.3 200 13.8
198-220 60.3-67 225 15.5

SUPERLITE-17 A/B
PAGE 7
© Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
WARNING: Never connect the main gas
supply hose from the diving station/umbilical to
the Emergency Gas Valve. The Emergency Gas
Valve does not have a one way valve. If this mis-
take were made, any break in the supply hose
would result in a“squeeze”and instant flooding
of the helmet.This could result in serious injury
or death.
larly,Section6.2.1 and 6.2.2. It is very easy to disassemble
and inspect. (A rebuild kit for this valve is available,
KMDSI Part #525-330).
WARNING:The one-way valve must be vi-
sually inspected and flow tested daily prior to
commencing diving operations, use checklist
A2.3.Follow the procedures for testing the valve
in Section 2 of this manual.
The Emergency gas comes from a tank of compressed
gas worn by the diver. It enters the system through the
emergency gas valve assembly (58) when the diver turns
the control knob (55) on. The flow then enters the side
block (43a/b).
Both sources of gas flow through the same passages in
the side block body (43a/b) to two exits. One exit is
always open to supply gas to the demand regulator
assembly (138a/b). Another exit is to the defogger
valve (free-flow valve) assembly (32-41), and the third
is to an auxiliary L.P. port.
The diver controls the flow of gas through the defogger
system with the control knob (34). The flow enters the
helmet and flows through the air train (99), which directs
the gas onto the face port (143) to help defog the face port
when moisture accumulates from the diver’s warmth and
moisture. The flow continues out through the helmet ex-
haust (water dump) (150-153) valve, and /or into the oral/
nasal (83) by means of the oral/nasal valve (84,85), then
out into the regulator body (138a/b) and out through the
regulator exhaust (137). The diver can breathe from this
flow of gas if the demand regulator malfunctions.
Returning to the side block assembly: the other passage
for gas is to the demand regulator (138a/b). Going either
to a bent tube assembly (45b) on the SL-17B or a hose
assembly only on the SL-17A (47a) that connects to the
inlet nipple of the demand regulator (130a or 132b). The
flowof gas in the demand regulator assembly iscontrolled
by the inlet valve and supplies gas to the diver on inhala-
tion “demand” only, and shuts off during the exhalation
cycle.
Gas Flow To Air Train
Main Gas
Supply
Auxiliary L.P. Port Gas Flow
To Regulator
Gas Flow To Air Train
EGS
Gas Supply
Auxiliary L.P. Port Gas Flow
To Regulator
Fig 1.6 The SuperLite 350 Demand Regulator

PAGE 8 © Copyright 1970-2004 Kirby Morgan Dive Systems, Inc.All rights reserved. Document # 040809001, Aug. 2004
CHAPTER 1 - GENERAL INFORMATION
The regulator diaphragm is drawn in during inhalation
and opens the flow valve, matching the diver’s need. The
regulator continues to match the diver’s inhalation as the
rate increases, peaks, then ebbs and stops. When the diver
exhales, as the exhalation gas flows through the regulator
body, out the regulator exhaust valve, through the whis-
ker (139), and into the water. The whisker deflects the
exhaust bubbles away from the face port (142) to keep
the diver’s view clear.
The bias adjustment knob (120) allows the diver to con-
trol the regulator for a wide range of incoming gas pres-
sures as listed. Additionally, it can be backed off to re-
move spring tension and allow the regulator to free flow.
Maintain minimum overbottom gas supply pressure for
depth (FSW x .445) + recommended supply for depth.
NOTE: The demand regulator and side block assembly
has a maximum design pressure of 225psig(15.5 bar)
over bottom pressure (OB).
The adjustment knob operates by simply increasing or
decreasing the amount of spring bias tension on the de-
mand regulator inlet valve. The adjustment knob has a
range of approximately 14 turns from full in to full out.
The intent of this bias adjustment device is strictly to al-
low the diver to make adjustments for variations in um-
bilical supply pressure. This adjustment device is not in-
tended as a minimum-maximum device. Minimum and
maximum applies to supply pressure only. The adjustment
knob should be adjusted by the diver to be at the easiest
breathing setting at all times without the regulator becom-
ing overactive. The exact number of turns required is de-
pendent on the supply pressure. Diving any Kirby Mor-
gan helmet or Band Mask™ with a bias setting greater
than that just necessary to keep the demand valve from
free flowing, increases the work of breathing and reduces
the diver’s ability to perform heavy work.
The side block on the “B” model helmet (43b) is drilled
and tapped to accept low-pressure inflator hoses. This al-
lows the diver the capability to inflate variable volume
dry suits.. It is tapped with a 3/8-24 thread orifice, stan-
dard for American first stage scuba regulator’s low-pres-
sure auxiliary fittings. The port is shipped plugged (48) at
delivery. This inflation capability does not significantly
Fig 1.7 A low pressure inflator hose with flow restrictor
installed.
Depth Pressure
FSW MSW P.S.I.G. bar
0-60 18.3 90 6.2
61-100 18.6-30.5 115 7.9
101-132 30.8-40.2 135 9.3
133-165 40.6-50.3 165 11.4
166-198 50.6-60.3 200 13.8
198-220 60.3-67 225 15.5
interfere in any way with the breathing characteristics of
the regulator during normal use providing a limiting hose
is used. When using a dry suit inflation hose, the hose
should be equipped with a flow restrictor (P/N 555-210)
to limit flow in the event the hose ruptures or is severed.
WARNING:The side block inflator port is
intended for dry suits only.When using the side
block low-pressure inflator port, only good
quality hoses and fittings should be used and
must incorporate an in-line flow restrictor to
reduce gas flow in the event of hose failure. Any
hose or fitting failure in this arrangement will
subject the diver to a decreased air supply. Do
not use the side block inflator port for any
purpose other than attaching a dry suit hose.
1.5.3 Emergency Gas Supply System (EGS)
KMDSIstronglyrecommendsthattheworkingdivercarry
an independent supply of compressed gas (or air) fitted
with a first stage regulator and hose that is connected to
the inlet of the Emergency Gas Valve (EGS).
WARNING:Be sure the Emergency air/gas
first stage regulator is fitted with a relief valve
for over-pressurization of the emergency gas
supply hose. A leaky first stage can overpres-
sure the hose resulting in hose rupture. This
would cause a loss of the entire emergency gas
supply, Serious injury or death.