Aqua Lung G3000SS Manual

AQUA LUNG G3000SS HELMET
OPERATIONS & MAINTENANCE MANUAL
AQUA LUNG G3000SS DIVING HELMET www.aqualung.com/militaryandprofessional

COPYRIGHT NOTICE
This manual is copyrighted, all rights reserved. It may not, in whole or in part, be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine readable form without prior
consent in writing from Aqua Lung America, Inc. It may not be distributed through the internet or
computer bulletin board systems without prior consent in writing from Aqua Lung America.
© 2014 AQUA LUNG AMERICA, INC.
AQUA LUNG G3000SS DIVING HELMET OPERATIONS & MAINTENANCE MANUAL, PN 400179
Aqua Lung G3000SS Diving Helmet
PN 400300
PN 400301
PN 400302
You can contact a Technical Advisor via e-mail at:
sreil[email protected]m
lgors[email protected]
Trademark Notice
Aqua Lung®, is a registered trademark of Aqua Lung America, Inc.
Warnings, Cautions and Notes:
Pay special attention to information provided in warnings, cautions, and notes,
that is accompanied by these symbols:
A NOTE is used to emphasize important points, tips, and reminders.
A CAUTION indicates any situation or technique that could cause damage
to the product, and could subsequently result in injury to the user.
AWARNING indicates a procedure or situation that if not avoided,
could result in serious injury or death to the user.
2 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

3
I. SAFETY INFORMATION ....................................................................................................................................................5
Operator and Technician Training ................................................................................................................................5
Recommended Air Supply Pressure ............................................................................................................................5
Long Duration & Cold Water Diving .............................................................................................................................5
II. WARRANTY INFORMATION.............................................................................................................................................5
OPERATIONS SECTION
III. HELMET OPERATING INFORMATION ...........................................................................................................................6
Helmet Description ........................................................................................................................................................6
Performance & Certication .........................................................................................................................................6
Dive System Requirements...........................................................................................................................................7
Bailout Congurations ..................................................................................................................................................7
Set-Up Procedures.........................................................................................................................................................8
User Checklists ..............................................................................................................................................................8
Gas Supply Pressures...................................................................................................................................................8
Noise Exposure..............................................................................................................................................................8
Head Protection .............................................................................................................................................................9
Use with Low Pressure Oxygen ...................................................................................................................................9
Environmental Conditions ............................................................................................................................................9
G2000SS Helmet Conversion........................................................................................................................................9
IV. USER CHECKLISTS ......................................................................................................................................................10
CHECKLIST 1: G3000SS Diving Helmet Daily Checklist .......................................................................................... 11
CHECKLIST 2: G3000SS Diving Helmet Pre-Dive Checklist ....................................................................................15
CHECKLIST 3: G3000SS Diving Helmet In-Water Checklist for Supervisor...........................................................18
CHECKLIST 4: G3000SS Diving Helmet Post-Dive Checklist ..................................................................................20
TECHNICAL SECTION
V. HELMET TECHNICAL INFORMATION...........................................................................................................................23
Authorized Technicians...............................................................................................................................................23
Factory Prescribed Procedures..................................................................................................................................23
Scheduled Service .......................................................................................................................................................23
Lubrication ...................................................................................................................................................................23
Technician Checklists..................................................................................................................................................24
General Guidelines ......................................................................................................................................................24
TABLE OF CONTENTS

4 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual
VI. STEP-BY-STEP ASSEMBLY INSTRUCTIONS..............................................................................................................25
A. Second Stage Regulator.........................................................................................................................................26
B. Free Flow / Water Dump Valve ...............................................................................................................................27
C. Manifold....................................................................................................................................................................29
D. Defogger...................................................................................................................................................................30
E. Oral-Nasal Mask.......................................................................................................................................................31
F. Nose-Clearing Device (NCD) ...................................................................................................................................33
G. Face Port Assembly ................................................................................................................................................34
H. Communications .....................................................................................................................................................35
I. Head Liner .................................................................................................................................................................36
J. Neck Retainer and Locking System .......................................................................................................................37
K. Helmet Final Assembly ...........................................................................................................................................39
L. Neck Dam Assembly................................................................................................................................................44
VII. TECHNICIAN CHECKLISTS.........................................................................................................................................45
CHECKLIST 5: G3000SS Diving Helmet Monthly Inspection and Maintenance Checklist....................................46
CHECKLIST 6: G3000SS Diving Helmet Annual Inspection and Maintenance Checklist .....................................51
VIII. APPENDICES...............................................................................................................................................................60
A. Main Assemblies .....................................................................................................................................................61
B. Inner Components...................................................................................................................................................62
C. Manifold Body Assembly........................................................................................................................................63
D. Free Flow / Water Dump Valve Assembly..............................................................................................................64
E. Second Stage Regulator Assembly .......................................................................................................................65
F. Nose Clearing Device (NCD) Assembly .................................................................................................................66
G. Neck Dam Assembly ...............................................................................................................................................67
H. Welding Shield Kit...................................................................................................................................................68
I. Welding Shield Assembly Installation Instructions...............................................................................................69
J. Free Flow Plug Insert Kit Installation Instructions ...............................................................................................70
K. Camera / Light Bracket Installation Instructions..................................................................................................72
L. Terminal Block Communications Kits ...................................................................................................................73
M. Twist-On Communications Kits.............................................................................................................................74
N. Communications Kit Installation Instructions......................................................................................................75
O. Torque Specications.............................................................................................................................................79
P. Recommended Cleaners and Lubricants ..............................................................................................................80
Q. Cleaning and Lubricating .......................................................................................................................................81
R. Annual Service Kit...................................................................................................................................................82
IX. G3000SS DIVING HELMET SPARE PARTS LIST ........................................................................................................83
X. G3000SS DIVING HELMET ACCESSORIES .................................................................................................................86

I. SAFETY INFORMATION
OPERATOR AND TECHNICIAN TRAINING
The G3000SS Diving Helmet should be used and operated by properly trained and certied
divers and tenders only.
The technical procedures in this manual are to be performed only by personnel who have
received factory authorized training through an Aqua Lung Service & Repair Seminar.
RECOMMENDED AIR SUPPLY PRESSURE
The recommended air supply pressure is 129 - 326 PSI (8.9 - 22.5 BAR) Over Bottom Pressure as per
the Apeks GX300 Regulated Supply Pressure Table in Checklist 3, In-Water Checklist for Supervisor.
LONG DURATION & COLD WATER DIVING
Diving for long durations and/or in cold water may subject the diver to severe body and respiratory heat
loss. This may lead to a decrease in body core temperature also known as “hypothermia.” Hypothermia
is extremely dangerous condition and can lead to a loss of reasoning ability, decreased manual dexterity,
uncontrollable shivering, unconsciousness, and death.
II. WARRANTY INFORMATION
The manufacturer warrants every new helmet to be free from defects in workmanship for a period of
twelve (12) months from date of purchase.
Parts covered under the warranty:
• This warranty covers all metal parts.
Parts not covered under the warranty:
• This warranty does not cover any soft parts (e.g. o-rings, diaphragms), communications
components, headliners, or chrome plating. Due to the electrolytic nature of underwater cutting
and welding, chrome plating cannot be warranted when the diver engages in these activities.
The warranty becomes null and void if:
• The product has been modied without consent of Aqua Lung America, Inc.
• The product has been misused, damaged, put into a situation or service for which the product is
not intended or if the product has not been correctly maintained according to the G3000SS Diving
Helmet Operations & Maintenance Manual.
5

III. HELMET OPERATING INFORMATION
HELMET DESCRIPTION
The G3000SS Diving Helmet is a high performance diving helmet for professional diving applications.
The key features of the G3000SS include:
• Balanced design 2nd stage regulator.
• High grade communications system manufactured by OTS.
• Stainless steel (316L) shell, neck retainer and neck ring: no dissimilar metals.
• Breathing loop components protected inside shell.
• Low component count.
• Reduced maintenance load.
OPERATIONS SECTION
The G3000SS has many components in common with the original Gorski G2000SS helmet but with the
following important revisions:
• Apeks GX300 2nd stage regulator.
• Double exhaust and double water dump protection.
• Ergonomic free ow knob.
• 4-wire communications (marsh marine or hi-use version).
PERFORMANCE AND CERTIFICATION
The G3000SS Diving Helmet:
• Is suitable for use with standard compressed breathing air ("diving air").
• Meets Work of Breathing (WOB) performance requirements at all required standard and high
RMV work rates.
• Meets inspired partial pressure of carbon dioxide performance requirements at all required
standard and high RMV work rates.
• Is tested and certified for use in water temperatures down to 4 degrees Celsius (39.2
degrees Fahrenheit).
The G3000SS Diving Helmet has been CE certied by Germanischer Lloyd SE, Brooktorkai 18, 20457
Hamburg, Germany, Notied Body number 0098 and has been found to be in accordance with the
requirements of Council Directive 89/686/EEC. When examined the product satised the requirements
of the manufacturer’s technical specications (based upon EN 15333-1: 2008, Respiratory Equipment
– Open-circuit umbilical supplied compressed gas diving apparatus requirements), which has been
previously assessed and deemed to meet the basic health and safety requirements (Annex II) of the
directive.
The CE certicated depth of 50 m (165 ft) is a standard maximum certication depth for diving equipment
that is used to provide a uniform benchmark for measuring performance.
6 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

DIVE SYSTEM REQUIREMENTS
The G3000SS Diving Helmet is used with the following minimum equipment:
• Surface gas control system (panel) providing a regulated surface supply.
• Diver’s umbilical, including gas hose and voice communications cable.
• Emergency Gas Supply (EGS) or bailout gas supply (including 1st stage regulator tted with
pressure gauge, and pressure relief valve). All EGS components are to be CE-certied.
• Diving Harness (for attachment of umbilical, bailout gas supply and weights).
• Personal diving equipment (e.g. suit, ns, gloves).
NOTE: The cylinder “Valve Down” conguration may be used without a switch block (i.e. bailout
supply hose connected directly to the rear manifold on the helmet). During pre-dive checks the
bailout rst stage regulator and hose are pressurized and the cylinder valve is then closed. The
pressurized hose prevents water ingress. Opening the bailout cylinder valve provides bailout
gas directly to the helmet. In this case the diver must be able to operate the cylinder valve
within 10 seconds. This is known as the Direct Bailout Conguration.
CAUTION: Users must be aware of the potential for obstruction of the helmet manifold
if the bailout system is rigged in the cylinder "Valve Up" conguration.
BAILOUT CONFIGURATIONS
There are 2 standard equipment congurations for use with an Emergency Gas System (EGS) or
bailout supply: cylinder “Valve Down” and cylinder “Valve Up”. Both congurations use a bailout
switch block (P/N AP0281/G) mounted on the diver’s harness (See Section X for details of the switch
block). The switch block provides an easy to operate ON/OFF valve for the bailout supply. The bailout
connections on the helmet and the switch block are standard 9/16 inch SCUBA male ttings.
In both congurations the bailout supply is routed from the bailout cylinder/rst stage regulator through
the switch block then to the helmet manifold. The bailout cylinder is opened during pre-dive checks and
remains open throughout the dive. The switch block is also opened during pre-dive checks and then
remains closed until required for use. Both hoses remain pressurized to prevent water ingress.
Primary Conguration: This is the cylinder “Valve Down” conguration, tted with switch block.
Lower hose routed from bailout
cylinder, upper hose routed to
helmet
Lower hose routed from bailout
cylinder, upper hose routed to
helmet
7

USER CHECKLISTS
The following checklists are provided to assist all users:
• Daily Checklist ………………………………………………………………….……………Section IV
• Pre-Dive Checklist ………………………………………………………………….……… Section IV
• In-Water Checklist for Supervisor …………….…………….…….…….…….…….……. Section IV
• Post-Dive Checklist…………….…………….…….…….…….…….…….………………. Section IV
GAS SUPPLY PRESSURES
Regulated surface supply pressures for the G3000SS diving helmet are detailed in the In-Water Checklist.
Gas systems used to supply the G3000SS helmet must be capable of supplying gas to the diver at the
required supply pressure and ow rates. The use of unregulated gas sources is extremely dangerous.
The regulated surface supply pressures are intended for use with properly adjusted and maintained
G3000SS helmets only. They should not be used with other manufacturers’ helmets or masks.
The G3000SS helmet and the umbilical and associated supply system must be properly congured,
maintained, and adjusted in order to supply the diver with the correct quantity of breathing gas.
NOISE EXPOSURE
The maximum internal noise levels for the G3000SS diving helmet are as follows:
Maximum noise level at 40 l/min RMV: 83.4 dB(A) - Limit: 85 dB (A); re 204Pa.
Maximum noise level at 75 l/min RMV: 98.3 dB(A) - Limit: 135 dB (A); re 204Pa.
Maximum permissible noise exposure times are to be calculated using the above levels, the applicable
national occupational health limits, and the expected time that the diver will spend at each RMV.
SET-UP PROCEDURES
Testing the Check Valves: The helmet is equipped with two check valves, one for the main gas supply
and the other for emergency breathing gas (bailout supply). Each check valve should be checked prior
to connecting a gas hose. To check each check valve, the free ow valve must be open and breathing
gas must be pulled from the check valve to verify that it is closed. The gas hoses may be attached only
after verifying that the check valves are properly functioning.
Testing the Emergency Gas Supply (EGS): After the diver has veried a proper seal of the helmet on
his head and the main breathing gas supply is bled from the gas hose, the diver must test his emergency
gas supply (bailout). The procedure for testing the bailout supply is detailed in the Pre-Dive Checklist.
8 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

HEAD PROTECTION
The G3000SS diving helmet provides Class B head protection as detailed in EN 15333-1: 2008.
USE WITH LOW PRESSURE OXYGEN
All breathing loop materials are compatible for use with low pressure pure oxygen (100% O2) at
pressures up to 25 bar (363 psi). See lubrication section for guidance on suitable lubricants.
G2000SS HELMET CONVERSION
All existing Gorski G2000SS diving helmets may be converted to the G3000SS diving helmet standard.
When the GX300 regulator is retrotted to an existing G2000SS helmet it will then be known as the
Gorski G3000SS helmet. A double exhaust kit (water dump), must be tted to the helmet at the same
time. This ensures that the helmet is tted with, and provides, a dual valve (i.e. double exhaust) level of
protection for the diver. See Appendix A for details of the double water dump exhaust.
To convert a G2000SS diving helmet to a G3000SS diving helmet, the following items are needed:
• PN AP0300, Apeks GX300 Regulator
• PN AP0270, Handwheel Assembly
• PN 400111, Double Exhaust / Water Dump Kit
• PN 400150 Terminal Block Hi-Use Communications Module Kit or 400151 Terminal Block Marsh
Marine Communications Module Kit.
ENVIRONMENTAL CONDITIONS
The G3000SS is suitable for diving in all common environmental conditions with the following guidance:
Contaminated Water Diving (CWD): Diving in contaminated waters requires special training, equipment,
and procedures for all personnel involved. All helmets and suits may leak water under certain conditions.
The G3000SS has a double exhaust regulator and double water dump exhaust tted as standard in order
to provide an increased level of protection for the diver.
Decompression diving always involves the risk of decompression illness. Omitted decompression due to
a loss of the breathing gas supply or other incident may lead to serious injury or death. Use of a G3000SS
helmet mask cannot prevent this type of injury.
9

IV. USER CHECKLISTS
Checklist 1 G3000SS Diving Helmet Daily Checklist
Checklist 2 G3000SS Diving Helmet Pre-Dive Checklist
Checklist 3 G3000SS Diving Helmet In-Water Checklist for Supervisor
Checklist 4 G3000SS Diving Helmet Post-Dive Checklist
NOTE: The terms “hook”, “loop” and “hook & loop” are used throughout this manual. Hook & Loop
is commonly known as Velcro®, which is a trademarked brand of hook & loop. Some of the helmet
components have hook & loop attachments, including the head liner, free ow plug kit and microphone.
10 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

CHECKLIST 1
G3000SS DIVING HELMET
DAILY CHECKLIST
BEFORE DIVING THE G3000SS DIVING HELMET, THE PROCEDURES IN THIS CHECKLIST MUST
BE COMPLETED, NORMALLY ON A DAILY BASIS (I.E. PRIOR TO THE FIRST DIVE OF THE DAY).
NOTE: The procedures in this checklist are to be performed only by personnel who
have received appropriate training in the operation of the G3000SS diving helmet.
NOTE: When using the EGS, during completion of the daily checklist, the rst stage
regulator must have an intermediate pressure (IP) output set between 129 and 150
psig (8.9 - 10.3 BAR). In addition, the rst stage regulator bleed/pressure relief valve
should be set between 180 and 200 psig (12.4 - 13.8 BAR).
WARNING: Aqua Lung strongly recommends completion of this checklist and
meeting the minimum requirements provided before using the G3000SS diving
helmet. However, these requirements are not conclusive, as further steps may be
required depending on the type of activity performed. FAILURE TO COMPLY WITH
THIS CHECKLIST MAY RESULT IN SERIOUS INJURY OR EVEN DEATH.
CAUTION: When using the G3000SS diving helmet, a correctly maintained and
serviceable Emergency Gas Supply (EGS) must be used. The EGS must include
a 1st stage regulator tted with submersible pressure gauge and pressure relief
valve. The EGS must be conrmed as fully functional prior to diving.
COMPLETE THE FOLLOWING BOXES PRIOR TO THE CHECKLIST
COMPLETE THE SIGNATURE, DATE AND COMMENTS AT THE END OF THE CHECKLIST
Helmet Serial No: Date:
Diver / Tender:
(Print Name)
11

DAILY CHECKLIST (continued)
ACTION PROCEDURE INITIALS
NECK RETAINER AND
LOCKING SYSTEM
(must be completed by diver/tender)
• Visually inspect the neck retainer assembly for
signs of damage, such as bends. Conrm that
the retainer ts properly.
• Make sure the locking system (both L and R) is
properly working and not deformed in any way.
NECK DAM ASSEMBLY
(must be completed by diver/tender)
• Visually inspect the neck dam ring for signs of
damage, such as bends, scratches on the o-ring
surface area or any other deformities.
• Visually inspect the neck seal for signs of damage
such as tears, rips or cuts.
• If the quad ring is dry, lightly lubricate the quad ring.
• Replace the neck dam assembly onto the helmet
and ensure a proper t.
HELMET INSPECTION
(must be completed by diver/tender)
• Visually inspect the helmet (interior and exterior)
for damage and/or contamination.
NOTE: If a contaminated area of the shell
is cleaned using a wire brush, the brush
must be stainless steel or the area will be
contaminated.
• Inspect the oral-nasal inhalation valve to ensure
that it is installed correctly and that the oral-nasal
mask is installed on the regulator.
• Check that the nose clearing device oper-
ates without problems. If necessary lubricate
o-rings and stem (Refer nose clearing device
section of the Operations and Maintenance
Manual for guidance)
• Ensure the speakers and microphones are properly
installed. Refer to the communications section of the
Operations and Maintenance Manual for guidance.
• Ensure that the head liner ts properly and is secured
to the inside of the helmet shell. Check for worn-off
hook and loop, tears and/or rips. (Refer to the head
liner section of the Operations and Maintenance
Manual for guidance).
NOTE: The Head Liner should be tted
carefully into the helmet shell so that visible
parts of the helmet shell (i.e. bare spots)
are minimized.
12 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

DAILY CHECKLIST (continued)
ACTION PROCEDURE INITIALS
EGS INSPECTION
(must be completed by diver/tender)
• Visually inspect all EGS hoses for any signs of
damage or defect.
• Ensure that the bailout cylinder is within the VIP
and the hydrostatic date.
• Check the rst stage regulator intermediate
pressure (IP) setting before each dive.
• Make sure there is no damage to the diver
harness and cylinder retention straps. Repair
or replace if damaged.
• Visually inspect the bailout switch block (if tted)
for any signs of damage or defect, and conrm
that it is attached securely to the diver harness.
CONNECT THE EGS TO
THE HELMET
(must be completed by diver/tender)
• Conrm the check valve is properly functioning by
orally checking it (suck on valve to conrm seal).
• Connect the first stage regulator, fitted with
submersible pressure gauge, to the EGS
cylinder then proceed as follows:
DIRECT BAILOUT CONFIGURATION:
Connect the regulator hose directly to the helmet
check valve.
BAILOUT SWITCH BLOCK CONFIGURATION:
Connect the regulator hose to the bailout inlet
connection on the switch block. Connect the
second hose from the switch block outlet to the
helmet check valve.
• With the cylinder supply turned off, open and
close the free ow / water dump valve to verify
efcient operation of the valve.
• Open the EGS supply valve on the cylinder and
log the pressure.
EGS CYLINDER PRESSURE __________ psig.
• Immediately after logging the EGS cylinder
pressure, proceed as follows:
DIRECT BAILOUT CONFIGURATION:
Open the helmet free ow / water dump valve ¾
to 1 full turn and conrm a powerful ow of gas
coming out of the defogger train.
BAILOUT SWITCH BLOCK CONFIGURATION:
Open the switch block valve prior to opening the
helmet free ow / water dump valve and conrming
the gas ow.
• After conrmation, close the free ow / water
dump valve (and switch block valve if tted).
NOTE: Ensure that the EGS
is maintained properly.
13

DAILY CHECKLIST (continued)
ACTION PROCEDURE INITIALS
ATTACH THE UMBILICAL
(to be completed by tender)
• Conrm the check valve is properly functioning by
orally checking it (suck on valve to conrm seal).
• Blow air through the umbilical to remove any debris,
and attach the umbilical into the umbilical adapter
located on the check valve.
CHECK THE SECOND
STAGE REGULATOR
(must be completed by diver/tender)
• Slowly depress the purge button to full extent and
conrm a sufcient audible ow of gas.
NOTE: If the regulator free ows, or if after
fully depressing the purge button there is a
weak ow of gas, the regulator needs to be
adjusted or the low pressure valve should be
replaced or serviced by a trained technician.
CONFIRM FUNCTION OF
COMMUNICATIONS
(to be completed by diver)
• Check all communications to conrm correct
functioning.
CHECK DRY-SUIT
INFLATION HOSE
(must be completed by tender).
• If tted, conrm the dry suit ination valve and
exhaust valve are functioning properly.
CHECK HELMET FOR
LEAKS
• Apply soap and water to ALL gas ttings and
connections (including the EGS) to check for
leaks on the helmet.
FINAL CHECK
(to be completed by tender)
• Check to ensure the neck retainer is in the correct
position and properly locked.
• Ensure the diver's safety harness is in good
condition.
• Ensure the umbilical strain is released.
• Ensure the EGS hose quick disconnect is in good
condition and is functioning properly.
• Ensure diver has boots, gloves, knife and other
accessories.
To Diver / Tender: Note comment on the space provided below. Be sure to log maintenance in
the applicable maintenance log.
Comments:
Signature: Date:
14 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

CHECKLIST 2
G3000SS DIVING HELMET
PRE-DIVE CHECKLIST
BEFORE COMPLETING THIS CHECKLIST, THE DAILY CHECKLIST MUST BE COMPLETED.
BEFORE DIVING THE G3000SS DIVING HELMET, THE PROCEDURES IN THIS CHECKLIST MUST
BE COMPLETED.
NOTE: The procedures in this checklist are to be performed only by personnel who
have received appropriate training in the operation of the G3000SS diving helmet.
NOTE: Aqua Lung strongly recommends that the diver be assisted by the tender or
supervisor when preparing for diving and conducting the procedures in this checklist.
WARNING: Aqua Lung strongly recommends completion of this checklist and
meeting the minimum requirements provided before using the G3000SS diving
helmet. However, these requirements are not conclusive, as further steps may be
required depending on the type of activity performed. FAILURE TO COMPLY WITH
THIS CHECKLIST MAY RESULT IN SERIOUS INJURY OR EVEN DEATH.
CAUTION: When using the G3000SS diving helmet, a correctly maintained and
serviceable Emergency Gas Supply (EGS) must be used. The EGS must include
a 1st stage regulator tted with submersible pressure gauge and pressure relief
valve. The EGS must be conrmed as fully functional prior to diving.
COMPLETE THE FOLLOWING BOXES PRIOR TO THE CHECKLIST
COMPLETE THE SIGNATURE, DATE AND COMMENTS AT THE END OF THE CHECKLIST
Helmet Serial No: Date:
Diver/Tender:
(Print Name)
15

PRE-DIVE CHECKLIST (continued)
ACTION PROCEDURE INITIALS
SUPPLY GAS
(must be completed by supervisor)
• Supervisor must ensure the diver has sufcient
breathing gas pressure supplied to the helmet
for depth.
BREATHING SYSTEM
FUNCTION CHECK
(must be completed by diver)
• Ensure proper functioning of free ow valve by
opening and closing the valve.
• Check that breathing resistance is comfortable.
• Ensure gas purge function by pressing in the
purge button.
• Ensure the bail out cylinder valve is closed.
COMMUNICATION
CHECK
(must be completed by diver
and communications operator)
• Ensure the speakers and microphone are
functioning correctly.
CHECK DRY SUIT
INFLATION HOSE
(must be completed by tender)
• Ensure dry suit ination valve and exhaust valve
are functioning correctly.
FULL HELMET CHECK
(must be checked by supervisor)
• Check all helmet gas ttings and connections for
leaks. Check EGS for leaks.
• Check adjustment or t of entire helmet, including
the divers safety harness, umbilical strain release,
EGS hose quick disconnect, boots, gloves, knife
and accessories.
EGS FUNCTIONAL
CHECK
(must be completed by diver
and witnessed by tender)
• Turn off the main breathing gas supply and
breathe down the umbilical (free ow / exhaust
valve may be used to assist).
• Open EGS (bailout) supply (i.e. cylinder valve, or
cylinder valve and switch block valve, depending
on bailout conguration) and take two breaths
from the EGS supply.
• Close the EGS supply valve(s) as follows:
DIRECT BAILOUT CONFIGURATION:
Close the cylinder valve (the hose remains pressurized).
BAILOUT SWITCH BLOCK CONFIGURATION:
Close the switch block valve. The cylinder valve is
to remain open. Both hoses remain pressurized.
• Open main breathing gas supply. Diver reports:
Breathing OK.
NOTE: This check is mandatory and must be
completed for all EGS (bailout) congurations.
After checking, the EGS supply must be shut
leaving the supply hose(s) pressurized.
16 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

PRE-DIVE CHECKLIST (continued)
ACTION PROCEDURE INITIALS
CHECK DIVER'S ENTIRE
RIG
(must be completed by supervisor)
WARNING: Both latch
catches must t into
place correctly or the
helmet may ood.
• Check adjustment and t of the entire rig, specic
points:
• Head liner secured inside the helmet shell.
• Neck dam is installed.
• Neck retainer secured with both locking catches
(L and R) engaged on neck retainer.
• Chin strap properly fastened.
• Check adjustment and t of the diver's safety
harness. Umbilical strain release, EGS hose
quick disconnect, boots, gloves, etc.
• Ensure helmet supply pressure is at minimum
129 psig (8.9 bar) as per the regulated supply
pressure table in Checklist 3, In-Water Checklist
for Supervisor.
FINAL BREATHING
CHECK
(must be completed by diver)
• Check to ensure the helmet is breathing correctly
with no complications.
NOTE: Ensure all equipment is properly
adjusted and is properly functioning.
Comments:
Signature: Date:
17

PROCEDURE INITIALS
1. The diver must ensure the helmet is breathing and must report that breathing is satisfactory.
2. The diver must ensure the helmet is watertight and if wearing a dry-suit, the diver
must ensure no leakage occurs. Diver must report that a proper seal has been made.
CHECKLIST 3
G3000SS DIVING HELMET
IN-WATER CHECKLIST FOR SUPERVISOR
WHEN DIVING THE G3000SS DIVING HELMET, THE PROCEDURES IN THIS CHECKLIST
MUST BE COMPLETED.
WARNING: Aqua Lung strongly recommends completion of this checklist and
meeting the minimum requirements provided before using the G3000SS diving
helmet. However, these requirements are not conclusive, as further steps may be
required depending on the type of activity performed. FAILURE TO COMPLY WITH
THIS CHECKLIST MAY RESULT IN SERIOUS INJURY OR EVEN DEATH.
CAUTION: When using the G3000SS diving helmet, a correctly maintained and
serviceable Emergency Gas Supply (EGS) must be used. The EGS must include
a 1st stage regulator tted with submersible pressure gauge and pressure relief
valve. The EGS must be conrmed as fully functional prior to diving.
WARNING: When diver uses less than the minimum recommended supply
pressure, the work must be adapted to prevent over-breathing the system,
which will result in exhaustion.
COMPLETE THE FOLLOWING BOXES PRIOR TO THE CHECKLIST
COMPLETE THE SIGNATURE, DATE AND COMMENTS AT THE END OF THE CHECKLIST
Helmet Serial No: Date:
Diver/Tender:
(Print Name)
18 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual

IN-WATER CHECKLIST (continued)
Comments:
Signature: Date:
Depth Recommended Supply Pressure Range
(MSW) (FSW) (BAR) (PSIG)
MINIMUM MAXIMUM MINIMUM MAXIMUM
00-20 00-66 8.9 10.9 129.0 158.0
21-30 69-98 11.0 12.4 160.0 180.0
31-40 102-131 13.3 15.4 193.0 223.0
41-50 135-164 17.5 20.5 254.0 297.0
51-60 (not recommended
when using normal air)
167-197 (not recommended
when using normal air) 21.5 22.5 312.0 326.0
APEKS GX300 REGULATED SUPPLY PRESSURE TABLE
HP Gas Supply Systems: The GX300 Regulated Supply Pressure Table applies to conventional
surface supply systems providing a regulated gas supply to the diver through an MP umbilical. If a
high pressure (HP) gas supply system is used, the information in the regulated supply pressure table
does not apply. The HP gas supply system will automatically adjust the diver’s gas supply pressure
with changes in depth. Always refer to the manufacturer’s instructions for the system being used.
NOTE: The main objective of the regulated supply pressures listed in the table below is to
ensure that a pressure between 8.9 and 10.3 bar above ambient pressure is maintained at the
diver as tested and CE certied.
NOTE: The supply pressures listed in the table below were derived by breathing simulator
trials for optimum performance at each depth using a breathing rate which simulates hard work
(an RMV of 62.5 lpm). They were obtained using a 100 meter [328 ft] umbilical with a minimum
I.D. of 9.5mm [0.375”] with not more than two sections. Use of different size umbilicals will
affect performance.
19

CHECKLIST 4
G3000SS DIVING HELMET
POST-DIVE CHECKLIST
THE POST-DIVE CHECKLIST MUST BE COMPLETED AT LEAST ONCE A DAY WHEN DIVING
USING THE G3000SS DIVING HELMET.
NOTE: The procedures in this checklist are to be performed only by personnel who
have received appropriate training in the operation of the G3000SS diving helmet.
WARNING: Aqua Lung strongly recommends completion of this checklist and
meeting the minimum requirements provided before using the G3000SS diving
helmet. However, these requirements are not conclusive, as further steps may be
required depending on the type of activity performed. FAILURE TO COMPLY WITH
THIS CHECKLIST MAY RESULT IN SERIOUS INJURY OR EVEN DEATH.
COMPLETE THE FOLLOWING BOXES PRIOR TO THE CHECKLIST
COMPLETE THE SIGNATURE, DATE AND COMMENTS AT THE END OF THE CHECKLIST
Helmet Serial No: Date:
Diver/Tender:
(Print Name)
20 Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual