Aqua Lung SEA MK User`s manual

Aqua Lung SEA MK User`s manual
Survival Egress Air
(SEA)
User's Manual
LV2
MK
Rev. 12/10
2
SEA USER'S MANUAL
Copyright Notice
This owner’s 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.
©2010 Aqua Lung International
SEA Owner’s Manual
P/N 108349
Trademark Notice
Aqua Lung® is a registered trademark of
Aqua Lung America, Inc.
Warnings, Cautions and Notes:
Pay special attention to information provided
A WARNING indicates a procedure or situation
that, if not avoided, could result in serious injury
or death to the user.
A CAUTION indicates any situation or technique
that could cause damage to the product, and could
subsequently result in injury to the user.
A NOTE is used to emphasize important points,
tips, and reminders.
SEA USER'S MANUAL
Contents
3
Product Description....................................................... 4
General Precautions & Warnings................................. 5
Preparation and Setup................................................... 6
General Filling Procedures. ........................................... 6
Filling the SEA from a SCUBA Cylinder.......................... 8
Filling the SEA with a Compressor Fill Adapter.............. 12
Filling the SEA with the MRS-III Mobile Refill Station..... 14
Adjusting the LV2 Mouthpiece Position......................... 17
Pre-Issue Checklist...................................................... 19
Pre/Post Flight Inspection........................................... 21
Care & Maintenance..................................................... 22
Inspection & Service................................................... 24
Technical Specifications............................................. 25
First Stage Exploded Parts Schematic...................... 26
MK Second Stage Exploded Parts Schematic.......... 27
LV2 Second Stage Exploded Parts Schematic......... 28
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SEA USER'S MANUAL
Product Description
The SEA MK and SEA LV2 consist of the basic SEA first stage and cylinder
assembly. The products differ in second stage configurations and color of
first stage components as listed below:
SEA MK
• SEA
Piston First Stage with integral fill port and choice of pin or dial indicator gauge. Some bright chrome components used on the hose and swivel assemblies.
• Standard ¼ I.D. Low Pressure Hose in 20 and 27 inch lengths. Bright Chrome fittings.
• Military Black MK Second Stage Assembly.
• Standard cylinders are 3000 psi, 1.5 cu.ft. or 2.0 cu.ft
SEA LV2
• SEA
Piston First Stage with integral fill port and choice of pin or dial
indicator gauge. All Black Chrome components utilized on first and
second stage components for low reflective signature
(Burst Plug is Chrome).
• Flexible 3/16 I.D., Low Profile, Low Pressure Hose in 20 and 27 inch lengths. Black Chrome fittings for low reflective signature.
• Ergonomic Low Volume Second Stage with indexable mouthpiece
allowing for variable regulator orientation without use of complex swivel devices.
• Standard cylinders are 3000 psi, 1.5 cu.ft. or 2.0 cu.ft
SEA USER'S MANUAL
5
General Precautions & Warnings
The SEA is intended for use only as an emergency device to assist
a crewmember or passenger in making an emergency egress from a
submerged aircraft. Due to its limited air volume, it is not intended for use
while scuba diving, or egressing from depths greater than 45 ft/ 13.5 m.
Before using the SEA, it is important to receive in-water survival training which simulates an emergency egress situation. You must also learn
basic principals and techniques for breathing compressed air underwater.
Use of the SEA without proper training is dangerous and can result in
serious injury or death.
Visual inspection and factory prescribed service for the SEA must be
performed at least once every two years by a factory trained and qualified service technician. Repair, service, and visual inspection must not be
attempted by untrained or unqualified personnel.
DO NOT attempt to overfill the SEA beyond 3,000 PSI/ 206 BAR at 70ºF/
21ºC. Doing so may seriously weaken the cylinder and cause it to rupture,
resulting in serious injury or death.
DO NOT fill or use the SEA if it has been exposed to extreme heat
exceeding 250°F / 121ºC, or open flame. Instead, discharge the cylinder
completely and return it to a qualified technician for inspection and
possible hydrostatic testing.
The SEA is designated compatible for use only with normal, atmospheric,
compressed air (21% oxygen and 79% nitrogen by volume). DO NOT attempt to fill with other gases, including pure oxygen, or air which has been
enriched with oxygen exceeding 21% in content. Failure to observe this
warning may result in serious injury or death due to fire and explosion, or
the serious deterioration and failure of the equipment.
DO NOT apply any type of petroleum-based lubricant, such as household
oil or motor oil to any part of the SEA. The SEA does not require any lubrication under normal circumstances, except that which is performed during
annual inspection and service by a factory trained service technician.
DO NOT apply any type of aerosol spray to the SEA. Doing so may cause
permanent damage to certain plastic components, including the second
stage housing.
During training exercises, it is important to ensure that the SEA is always
pressurized whenever it is submerged in order to prevent the entrance of
water into the system. Whenever the system has been completely emptied
of air underwater, it is important to return the SEA as soon as possible
to a qualified technician for visual inspection and any necessary service
before attempting to refill it.
It is important to fill the SEA only with dry, filtered air with a water vapor
content that does not exceed -65°F / -53ºC dewpoint. Excess water vapor
in the air can cause ice to form inside the SEA and interfere with the
operation of the system at colder temperatures.
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SEA USER'S MANUAL
Component Identification
LV2 Second Stage
First Stage w/
Integrated Valve
SCUBA Fill
Adapter
MK Second Stage
Cylinder
Preparation and Setup
The purpose of this manual is to familiarize you with the correct setup,
filling, inspection and maintenance of the SEA.
The SEA is packaged fully assembled and ready to use after it has been
filled with air. Before using it, however, it is very important to carefully read
and understand the procedures outlined in this manual for filling the unit
and performing a preflight inspection.
General Filling Procedures
NOTE: The average duration of air supply listed on page 25
of this manual is based on a completely full SEA cylinder, filled
to 3,000 PSI / 206 BAR with a volume of 2.0 cubic ft / 42.5
liters of air. It is strongly recommended that the SEA be filled
to 3,000 PSI / 206 BAR (cold fill), in order to provide maximum
breath volume.
1. Before attempting to fill the SEA, ensure that the fill adapter and first stage are completely dry – especially in the area surrounding the high pressure port.
SEA USER'S MANUAL
7
2. Examine the cylinder markings to verify that it is rated for a
fill pressure of 3,000 PSI / 206
BAR.
Maximum Fill Pressure
Month & Year of
Manufacture
Serial No.
WARNING: DO NOT attempt to fill the SEA if the cylinder
markings indicate that it is assembled with a non standard cylinder rated for a different fill pressure than 3,000
PSI/ 206 BAR. Doing so may result in rupture or explosion in the event of fire or overfilling. Instead, immediately return the unit to a qualified technician and do not
use under any circumstances.
3. Turn the valve handwheel clockwise until it is completely closed. To
ensure the valve is closed, check to
see if the red indicator ring is visible
in the handwheel.
"off"
position
Red indicator visible
4. Depress the second stage purge button to ensure that the
system is completely depressurized.
5. Unscrew the fill adapter
plug from the fill adapter port.
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SEA USER'S MANUAL
6. Closely inspect the port opening to ensure that no debris,
residue or moisture is present.
CAUTION: If moisture is found to be present inside the
port opening, indicating that water may have entered the
SEA first stage and cylinder, DO NOT fill or attempt to use
the SEA until it has received complete inspection and any
required service by a qualified technician.
WARNING: DO NOT attempt to loosen or remove the first
stage hose fitting or safety burst plug under any circumstances. Doing so could result in a dangerous malfunction
of the SEA which could result in serious injury or death.
Filling the SEA From a SCUBA Cylinder
NOTE: The SEA system does not include a SCUBA fill adapter.
This adapter (P/N 108325) may be purchased separately (refer
to Component Identification, p. 6).
CAUTION: The dial indicator is for reference only. Use fill system gauge as indicator of fill pressure.
SEA USER'S MANUAL
9
1. Using a calibrated pressure gauge, check the supply cylinder to
ensure that it contains at least 2,700 PSI/ 186 BAR and less than 3,100
PSI / 214 BAR. It is very important to ensure that the SEA is filled to its
total capacity but not overfilled.
2. Remove the protector cap from the threaded nozzle of the fill adapter. Inspect the nozzle to ensure the o-ring is present and seated evenly
at the base of the threads.
3. Mate the threaded nozzle of the fill adapter into the open fill port, and turn clockwise
by hand until snug. DO NOT apply a wrench
or otherwise overtighten the fill adapter into
the first stage.
4. Loosen the fill adapter yoke screw as needed so that the dust cap
can be removed from the inlet fitting and the yoke can be placed over
the valve of the supply cylinder.
5. While supporting the SEA with one
hand, place the yoke of the fill adapter
over the cylinder valve to align the inlet fitting flush against the valve o-ring. Tighten
the fill adapter yoke screw clockwise into
the small dimple on the backside of the
cylinder valve only until finger snug.
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SEA USER'S MANUAL
WARNING: DO NOT attempt to fill the SEA from a supply
cylinder which contains more than 3,100 PSI / 214 BAR.
Doing so may weaken and damage the safety burst plug
assembly and/ or SEA cylinder.
NOTE: Part Numbers 108382 & 108545 do not have an on/
off valve; therefore, the pressure indicator gauge and second
stage are always active when the cylinder is pressurized.
NOTE: The SEA may be filled with the valve handwheel in
the completely closed position (red indicator ring visible). In
this position the pressure indicator (pin or dial) will not register psi. This is not recommended.
6. While holding the first stage and
fill adapter secure, turn the valve
handwheel counterclockwise until it is
completely open. When the handwheel
is in the open position, the red indicator
ring is not visible.
"on"
position
Red indicator not visible
7. Support the cylinder with one hand, and slowly turn the supply
cylinder valve handwheel counterclockwise to open and begin filling.
As the SEA cylinder begins to fill, make sure the pressure indicator
(pin or dial) shows that the cylinder is filling properly.
NOTE: Always fill the cylinder as slowly as possible by turning the handwheel of the supply valve slowly to control the
rate of fill. Rapid filling will generate heat and will result in an
incomplete fill after the cylinder cools. If the cylinder is warm
to the touch afterward, the fill rate was too rapid.
CAUTION: The dial indicator is for reference only. Use fill system gauge as indicator of fill pressure.
SEA USER'S MANUAL
11
8. When at least two minutes have elapsed, and air can no longer be
heard flowing from the supply cylinder into the SEA, turn the supply
cylinder valve completely open.
9. To conserve the limited air supply of the SEA, it is strongly recommended that you perform a pre-issue inspection of the second stage
purge while it is connected to the supply cylinder as follows:
a. Depress the purge button to ensure that sufficient airflow is
provided to clear the second stage of water.
b. Immediately after releasing the purge button, listen closely to ensure that the second stage does not continue to flow any air.
10. While holding the first stage and fill adapter secure, turn the SEA
valve handwheel clockwise until it stops and the red indicator is visible.
Turn the handwheel of the supply cylinder valve clockwise until shut.
11. Hold the second stage purge button depressed until airflow can no
longer be heard from the second stage and the LP hose between the
first and second stages is completely depressurized (N/A to PN 108382
& 108545).
12. Open the pressure relief screw on the fill adapter to relieve the line
pressure.
13. While supporting the SEA cylinder with one hand, turn the yoke
screw of the fill adapter counterclockwise to loosen until the complete
system can be lifted off and removed from the supply cylinder valve.
14. While holding the SEA secure, turn the fill adapter counterclockwise at the fitting to loosen and remove from the first stage. Replace
the dust cap over the inlet fitting, and tighten the yoke screw finger tight.
15. Thread the fill port plug into the fill port until finger tight.
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SEA USER'S MANUAL
Filling the SEA with a Compressor Fill Adapter
NOTE: The Compressor Fill Adapter (P/N 100656) is not
included with SEA and must be purchased separately.
CAUTION: Do not attempt to fill the SEA directly from a
compressed air filling station unless you have received
the necessary training and authorization to do so. If done
incorrectly, this procedure poses certain hazards which
may cause severe injury or death.
NOTE: Part Numbers 108382 & 108545 do not have an on/
off valve; therefore, the pressure indicator gauge and second
stage are always active when the cylinder is pressurized
CAUTION: The dial indicator is for reference only. Use fill system gauge as indicator of fill pressure.
1. Inspect the fill adapter to ensure that the o-ring is present and seated
evenly inside its groove and the male fitting is clean and free of any damage to its threads.
2. Fit the male fitting of the fill adapter into the high pressure fill port of
the first stage, and turn clockwise only by hand until lightly snug. DO
NOT apply a wrench or otherwise overtighten the fill adapter.
3. Loosen the yoke screw of the compressor fill yoke as needed so that
the yoke can be placed over the block of the fill adapter.
4. While supporting the SEA with one hand,
place the yoke of the compressor fill yoke over
the block of the fill adapter to align the inlet fitting flush against the valve o-ring. Tighten the
fill yoke screw clockwise into the small dimple
on the backside of the fill adapter block only
until finger snug.
SEA USER'S MANUAL
13
WARNING: DO NOT attempt to fill the SEA from a
compressor or air supply where the regulated pressure exceeds 3,000 PSI / 206 BAR. Doing so may
weaken and damage the safety burst plug assembly
and/or SEA cylinder.
NOTE: The SEA will fill with the valve handwheel in the
completely closed position (red indicator ring visible). In this
position the pressure indicator (pin or dial) will not register psi.
This is not recommended.
5. While holding the first stage and fill adapter
secure, turn the SEA valve handwheel counterclockwise until it is completely open. When
the handwheel is in the open position, the red
indicator ring is not visible.
"on"
position
Red indicator not visible
6. Ensure that the SEA is supported, and turn the compressor valve
very slowly until it is slightly open to fill the cylinder with approximately
500 PSI / 34.5 BAR. Turn the fill valve shut and wait 45-60 seconds
before proceeding to fill the cylinder any further. Repeat this procedure
to fill the cylinder very slowly in small increments of 500 PSI / 34.5 BAR
or less, until it is filled to 3,000 PSI / 206 BAR.
NOTE: Always fill the SEA as slowly as possible by turning
the handwheel of the supply valve slowly to control the rate of
fill. Rapid filling will generate heat and will result in an incomplete fill after the cylinder cools. If the cylinder is warm to the
touch afterward, the fill rate was too rapid.
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SEA USER'S MANUAL
7. To conserve the limited air supply of the SEA, it is strongly recommended that you perform the following pre-issue inspection of the second
stage purge while the SEA is connected to the compressor fill yoke and
pressurized via the compressor fill adapter:
a. Briefly depress the purge button to ensure that sufficient airflow is provided to clear the second stage.
b. Immediately after releasing the purge button, listen closely to en- sure that the second stage does not continue to flow any air.
8. While holding the first stage and fill adapter secure, turn the SEA valve
handwheel clockwise until it stops and the red indicator is visible. Turn the
compressor fill valve completely closed.
9. Hold the second stage purge button depressed until air flow can no
longer be heard from the second stage and the LP hose is depressurized
(N/A to PN 108382 & PN 108545).
10. Open the pressure relief screw on the compressor fill yoke to relieve
the line pressure.
11. While holding the SEA cylinder supported, turn the yoke screw of the
compressor fill yoke counterclockwise to loosen until the compressor fill
yoke can be removed from the block of the fill adapter. Return the compressor fill yoke to its storage location.
12. While holding the SEA secure, turn the fill adapter block counterclockwise at the fitting to loosen and remove from the first stage.
13. Thread the fill port plug back into the fill port until fingertight.
14. When charging is complete, remove and store the compressor
adapter in a clean area.
Filling the SEA with the MRS-III Mobile Refill Station
The MRS-III is a self-contained Mobile Refill Station with an onboard supply
of approved breathing air pressurized up to 4500 psi. The MRS-III is designed
to fill up to two (2) Aqua Lung SEA (Survival Egress Air) units simultaneously to the operating pressure of 3000 psi. The following instructions are
the same for filling one unit or two (Refer to the MRS III instruction book for
more detailed instructions).
1. Verify that both panel-mounted Fill Valves on the MRS-III are
closed (clockwise).
2. Open the Valves on the MRS-III Supply Cylinders and verify that
the SUPPLY Pressure Gauge on the panel reads between 3000 and
4500 psi.
3. Verify that the REGULATED Pressure Gauge on the MRS-III panel
reads 3000 psi.
SEA USER'S MANUAL
15
4. Unscrew the Fill Hose Connector from its mounting point and install
the Fill Port Plug in its place for safekeeping pending re-installation.
Inspect the Fill Hose Connector to ensure that the o-ring is present and
seated evenly inside its groove and the male fitting is clean and free of
any damage to its threads.
5. Place the SEA in the blast tube.
6. Install the MRS-III Fill Hose Connector into the SEA Fill Port by
rotating the knob clockwise until the o-ring is fully seated. Hand tighten
only. DO NOT USE A WRENCH OR PLIERS TO TIGHTEN.
NOTE: The SEA will fill with the valve handwheel in the completely closed position (red indicator ring visible). In this position the pressure indicator (pin or dial) will not register psi. This
is not recommended.
CAUTION: The dial indicator is for reference only. Use fill system gauge as indicator of fill pressure.
7. Turn the SEA valve handwheel counterclockwise until it is completely open. When
the handwheel is in the open position, the
red indicator ring is not visible.
"on"
position
Red indicator not visible
8. Slowly open the MRS-III panel-mounted Fill Valve (counterclockwise) that corresponds to the Fill Hose being used.
9. Slowly fill the SEA at a rate not to exceed 500 psi per minute, to the
maximum of 3000 psi. Make sure the pressure indicator (pin or dial)
shows that the cylinder is filling properly.
NOTE: If the SEA cylinder becomes excessively warm to the
touch while filling, allow additional filling time for the unit to
cool before removing the SEA unit.
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SEA USER'S MANUAL
10. To conserve the limited air supply of the SEA, it is strongly recommended that you perform the following pre-issue inspection of the second
stage purge while the SEA is connected to the MRS-III fill hose connector
and pressurized via the MRS-III:
a. Briefly depress the purge button to ensure that sufficient airflow
is provided to clear the second stage.
b. Immediately after releasing the purge button, listen closely to
ensure that the second stage does not continue to flow any air.
11. When the SEA has cooled and is full, turn the SEA valve handwheel
clockwise until it stops and the red indicator is visible. Close the MRS-III
panel-mounted fill valve.
12. Hold the second stage purge button depressed until airflow can no
longer be heard from the second stage and the LP hose is depressurized.
13. Open the bleeder valve knob on the MRS-III fill hose connector and
vent the pressure from the fill hose.
14. Disconnect the MRS-III fill hose connector from the SEA by rotating
the connector knob counterclockwise.
15. Replace the fill port plug into the fill port of the SEA unit and hand
tighten.
16. When all filling operations are complete, close the valves on the
MRS-III supply cylinders. Firmly grasp one of the MRS-III fill hose connectors, point in a safe direction, and bleed any remaining pressure from
the system by slowly opening the corresponding panel-mounted fill valve
for that hose.
17. Close both panel-mounted fill valves and both bleeder valve knobs on
the MRS-III.
18. Attach the fill connectors to the provided mounting brackets, close and
securely latch the MRS-III cover.
SEA USER'S MANUAL
17
Adjusting the LV2 Mouthpiece Position
The LV2 second stage incorporates a unique feature that enables the
user to adjust orientation of the second stage body in relation to the
mouthpiece. This feature keeps the LV2 hose closer to the body and allows for more flexibility in various bottle-mounting configurations.
The mouthpiece-to-body default position is horizontal
which allows hose to route either to the right or left
of the LV2 Regulator second stage. The mouthpiece
boss on the body is hexagonally shaped, which allows
the mouthpiece to rotate to six different positions.
Hexagonal Mouthpiece Boss
Hexagonal Mouthpiece
Hexagonal shaped mouthpiece and
mouthpiece boss allows for multiple positions
WARNING: The mouthpiece clamp (16) must always be
installed before returning regulator to service. Failure
to install the clamp will result in mouthpiece separating
from regulator body during deployment of regulator.
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SEA USER'S MANUAL
Changing Position of mouthpiece
1. Mount SEA bottle in user preferred position.
2. Using side cutters, remove the
mouthpiece clamp (16) and discard.
3. Rotate mouthpiece to
preferred position.
4. Install a new mouthpiece
clamp (16) with the clamp tab
positioned in-line with the
center of the right bite-tab on
the mouthpiece. Since the LV2
mouthpiece is of a lower profile
design than standard Scubastyle mouthpieces the clamp tab
should be orientated in this manner so that clamp tab does not
interfere with the users lips.
SEA USER'S MANUAL
19
Pre-Issue Checklist
Before each use, the unit must be given a thorough visual inspection and
functional test by a qualified technician. NEVER use an SEA which shows
signs of damage, leakage, or substandard performance until it has received
inspection and service from a qualified technician.
NOTE: Pre-Issue checkout procedures are identical for the
SEA MK and LV2, regardless of which second stage is used.
1. Carefully inspect the low pressure hose to ensure it is securely connected into its respective port on the first stage and onto the second
stage. Inspect the length of the hose to ensure that it is not blistered,
cut, or otherwise damaged. Inspect the hose fittings for any signs of
corrosion.
2. Visually inspect the entire system for any external damage, such as
dents, gouges, or severe external corrosion.
3. While the SEA valve is completely shut and the system is
depressurized, inspect the pressure indicator assembly to ensure that
it is securely fastened to the first stage. Closely examine the pressure
indicator to ensure that it reads zero.
CAUTION: If the pressure indicator does not read zero
when the valve is shut and the system is depressurized,
DO NOT attempt to use the system until it has received
inspection and service from a qualified technician.
NOTE: Part Number 108382 and 108485 do not have an
on/off valve; therefore, the pressure indicator gauge and
second stage are always active when the cylinder is pressurized.
CAUTION: DO NOT attempt to open the SEA valve without
first checking to ensure that the LP hose and pressure
indicator assembly are securely fastened to the first stage.
4. Turn the SEA valve handwheel counterclockwise until it is completely
open. In the open position, the red indicator ring is not visible in the
handwheel.
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SEA USER'S MANUAL
5. Closely examine the pressure
indicator dial to determine whether
the needle is within the green zone,
indicating that the SEA cylinder is full.
6. If equipped with a pin indicator, the pin
should be exposed. If the pressure indicator
does not indicate that the cylinder is completely
full, repeat the filling procedure using a supply
cylinder that is filled to 3,000 PSI / 206 BAR.
7. Remove the protective retainer cover, immerse the SEA in water to
check for any signs of freeflow from the second stage, or leakage from
the hose, pressure gauge, safety disc assembly, first stage, or cylinder
neck. If leakage is found, do not attempt to use the SEA until it has received service from a qualified technician. When complete, remove the
water from the SEA 1st & 2nd stages and reinstall the retainer cover.
NOTE: If the second stage purge was checked during the
filling procedure, it is not necessary to repeat steps 7 & 8.
8. Briefly depress the purge button to ensure that sufficient airflow is
provided to clear the second stage of water (N/A to PN 108382 & PN
108545).
9. Immediately after releasing the purge button, listen closely to ensure
that the second stage does not continue to allow any air flow.
10. Turn the valve handwheel clockwise until it is completely closed. In
the closed position, the red indicator ring is visible in the handwheel.
Provided that these pre-issue inspection requirements have all been met,
the SEA is now ready for use.
SEA USER'S MANUAL
21
Pre-Flight Inspection
The pre-flight inspection shall be performed on the SEA prior to each
flight by the air crew member to whom the unit is assigned. Pre-flight
procedures are as follows:
WARNING: Strict compliance of pre-flight and post-flight
inspections shall be adhered to by all air crew members
utilizing the SEA. Any signs of discrepancies shall be reported
immediately to maintenance personnel.
1. With the system off, visually inspect the SEA for signs of damage.
Inspect front cover, exhaust cover and fittings for tightness. Inspect
for tamper dot (if command uses tamper dot) on front cover. Inspect
hose for cuts and blistering. Inspect for contamination, dirt and signs
of corrosion.
CAUTION: Do not press the purge button when the SEA is
on. Purging of the SEA will deplete the pressure below the
"GREEN ZONE" and it will have to be topped off by maintenance personnel
2. Turn the SEA "ON" by rotating the on/off knob to the left (counterclockwise), the red indicator ring shall not be seen through the elongated holes on the knob. Ensure that the gauge reads in the "GREEN
ZONE". If the gauge does not read in the "GREEN ZONE" report
discrepancy to maintenance personnel.
Post-Flight Inspection
1. Upon completion of flight, turn handwheel off (clockwise), so that red
indicator ring is visible through the elongated holes on the handwheel.
Depress the purge button to relieve pressure in hose and second stage.
Check SEA for signs of damage and contamination. Report discrepancies to maintenance personnel.
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SEA USER'S MANUAL
Care & Maintenance
It is important to provide the proper preventative maintenance in order to
ensure the best possible performance and reliability of the SEA. The following maintenance procedures should be performed routinely after each use of
the equipment.
1. After each in-water training session, the SEA must be cleaned,
inspected, prepared for the next use or for storage.
2. As soon as possible after training, the SEA should be soaked thoroughly
for at least one hour in warm (not over 120ºF / 49ºC) tap water to loosen and
dissolve salt (if used in salt water) and mineral deposits. Before soaking,
remove the protective retainer cover and turn the valve to the “ON” position
to pressurize the system. This will best prevent the entrance of moisture into
the system through the second stage.
CAUTION: If the SEA cylinder does not contain air, it is important to ensure that the valve is completely turned to the
“OFF” position, and the second stage purge button is not
depressed while the system is submerged or wet. Moisture
may otherwise be allowed to enter the valves and the cylinder,
which will require that the system be returned to a qualified
technician for inspection and service.
3. After the system has been properly soaked, it is important to rinse the
first stage, the second stage mouthpiece, and the openings in the second
stage front cover with a pressurized stream of water. This will remove the
salt and mineral deposits that were loosened during soaking.
4. When it has been properly soaked and rinsed, wipe the system as
dry as possible with a clean towel and gently shake the first and second
stage to dislodge any water inside them. If possible, use clean low pressure air to blow out of retainer cap prior to installing the rubber retainer
cover. Re-install the rubber retainer cover when the unit is completely dry.
5. Check to ensure that the SEA valve is turned to the “OFF” position,
and depress the purge button of the second stage to ensure that the system is completely depressurized before storing or transporting.
6. Due to the possibility of fire and exposure to extreme heat, the SEA
must be stored either completely full or completely empty. If the system is
exposed to fire while partially filled, the cylinder wall may rupture before
the internal pressure becomes great enough to burst the safety relief disc.
For this reason, Aqua Lung recommends that the cylinder be completely
emptied and the valves kept shut to prevent the entrance of moisture
before storing the system for an indefinite period.
SEA USER'S MANUAL
23
WARNING: DO NOT store the SEA partially filled. Doing
so may prevent the safety relief assembly from functioning
properly in the event of fire or exposure to extreme heat.
This may cause the cylinder to rupture or explode, possibly
resulting in severe injury or death.
7. Store the SEA completely dry, in a clean equipment box or sealed
inside a plastic bag. When possible, avoid storing it where it may be
exposed to extreme heat or an electric motor, which produces ozone.
Prolonged exposure to extreme heat, ozone, chlorine, and ultraviolet rays
can cause premature degradation of rubber parts and components, and
must be prevented.
8. When transporting the SEA, take the necessary precautions to ensure that it is surrounded by a protective cushion to prevent undue shock
or impact.
9. Do not use any type of solvent or petroleum based substances to
clean or lubricate any part of the regulator. Do not expose the regulator
to aerosol spray, as some aerosol propellants attack or degrade rubber
and plastic.
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SEA USER'S MANUAL
Inspection & Service
1. It cannot be assumed that the SEA is in good working order on the
basis that it has received little use since it was last serviced. Remember
that prolonged or improper storage can still result in internal corrosion
and/or deterioration of o-ring seals and valve springs.
2. It is imperative that you obtain factory prescribed service for your
SEA at least once every two years from a qualified technician, including
a visual inspection of the cylinder, and complete overhaul of the first
and second stage regulators. Your SEA may require this service more
frequently, depending on the amount of use it receives and the environmental conditions it is used in.
3. If the SEA is used for training purposes in saltwater, chlorinated, or
silted fresh water, it will require complete overhaul and factory prescribed
service every three to six months, or whenever it is suspected that moisture has entered the system. Use in chlorinated swimming pool water
will accelerate the deterioration of most rubber components, and require
more frequent service than in other typical conditions.
4. DO NOT attempt to perform any disassembly or service of your SEA.
Doing so may cause the system to dangerously malfunction. All service
must be performed by a qualified technician.
WARNING: Do not attempt to loosen or remove the first stage
hose fitting, gauge or safety burst plug under any circumstances. Doing so could result in a dangerous malfunction
of the SEA, which could result in serious injury or death.
OBTAIN FACTORY PRESCRIBED SERVICE FOR YOUR SEA
AT LEAST ONCE EVERY TWO YEARS. YOUR PERSONAL
SAFETY AND THE MECHANICAL INTEGRITY OF YOUR SEA
DEPEND ON IT.
SEA USER'S MANUAL
Technical Specifications
Cylinder Volume
*2.0 cf / 42.5 liters
Cylinder Material
Aluminum
Cylinder Length with Regulator
*10.5 in / 26.67 cm
Rated Cylinder Pressure
3,000 PSI / 206 BAR
Low Pressure Hose Length
*20 in / 50.8 cm
First stage Hose Connection
360 degree swivel
Regulator First Stage
Unbalanced Piston
Regulator Second Stage
MK or LV2
Pressure Gauge
Pin-type, integrated with
First Stage or dial gauge
Over Pressure Relief
Safety Burst Disc Assembly
First Stage Mounted
System Weight
Approximately 2.5 lbs / 1.36 kg
Buoyancy Full
Approximately -2.0 lbs / -.9 kg
Duration of Air Supply
**Approximately 21 breaths at
21 ft / 6.4 m.
*Based on pn 108330, SEA with 2.0 cu. ft. bottle
**Based on an average breath volume of 1.5 liters at a breathing rate of 10.5 bpm, with a starting supply pressure of 3,000
PSI / 206 BAR.
25
26
SEA USER'S MANUAL
S.E.A. First Stage with Cylinder Assembly
29
30
38a
38b
38c
31
4
32
27g
33
34
27f
27e
27d
27b 27c
35
22
45 ± 3 in.lbs.
5.0 ± .3 Nm
27a
21
22
90 ± 3 in.lbs.
10.2 ± .3 Nm
NLA - No Longer Available
Key #
Part #
19
22
25 ± 2 ft.lbs.
33.9 ± .2.7 Nm
17
15
25 26
37
18
16
90 ± 3 in.lbs.
10.2 ± .3 Nm
13
Key #
1
60 ± 5 in.lbs.
6.8 ± .5 Nm
On/Off Valve
Conversion Kit
PN 108441
10
11
39
Description
Port Plug, Swivel, Black
Port Plug, Swivel, Chrome
O-ring (10 pk)
O-ring (10 pk)
Hose Assy LV2, 27" Black
Hose Assy LV2, 20" Black
Hose Assy MK, 27" Black
Hose Assy MK, 20" Black
Spacer, Black
Spacer, Chrome
Burst plug
Retaining Nut, Black
Retaining Nut, Silver (NLA) Washer, Handwheel
Spring, Handwheel
Handwheel
Washer
On-off indicator ring
Bonnet
O-ring (10 pk)
Backup ring
O-ring (25 pk)
Spacer, metal
Washer, white Teflon®
Stem
Seat, Disc & Retainer Assy
Cap, Fill port
12
14
On-off valve assembly may be
replaced with optional "no on-off" plug,
part number 108367 (see key# 39 below)
& part number 820015 (see key# 14
below).
14
---------108343Overhaul Service Kit, 1st Stage
---------108311
First Stage Spare
---------108469
First Stage, Spare, USCG/CBP
1---------108305
---------108333
2---------820312P
3---------820311P
4---------108392
---------108391
---------100625
--------102835
5---------108306
---------108334
6---------054201
7---------108304
---------108314
8---------108329
9---------108316
10--------108313
11--------108326
12--------108317
13--------108318
14--------820015P
15--------828009
16--------820010P
17--------108328
18--------108327
19--------108319
20--------108322
21--------108307
6
20
2
90 ± 3 in.lbs.
10.2 ± .3 Nm
36
27
23
3
5
Part #
22--------820319P
23--------108308
25--------820304P
26--------108309
27--------102810
27a-------108346
27b-------108347
27c-------820304P
27d-------845034
27e-------100688
27f-------100613
27g-------100607
29--------108302
30--------108303
31--------820062P
32--------106769
33--------820007P
34--------106726
35--------106771
36--------108312
37--------820316P
38a-------079105
38b-------079120
38c-------079125
39--------108367
Part numbers in BOLD ITALICS indicate standard overhaul replacement part.
9
8
7
90 ± 3 in.lbs.
10.2 ± .3 Nm
Description
O-ring (10 pk)
Fill port
O-ring (10 pk)
Pin, Fill Port (Check valve)
Gauge, Dial, Low Profile, Black
Indicator Assy, Pressure, Pin Style
Body, Pressure Indicator
O-ring (10pk)
Washer
Spring
Plunger
Retainer
Cover, Retainer
Cap, Retainer
O-ring (10 pk)
Piston
O-ring (20 pk)
HP Seat, Piston
Spring, Main
Body, First Stage
O-ring(10 pk)
Cylinder, 1.5 cu.ft. Alum, Black
Cylinder, 2.0 cu.ft. Alum, Black
Cylinder, 2.5 cu.ft. Alum, Black
Plug, Blank, 5/8" Thread, Black
SEA USER'S MANUAL
27
MK Second Stage Exploded Parts
40
41
45
44
42
47
48
58
49
6
46
50
43
55
51
54
56
14
57
50 ± 3 in.lbs.
5.6 ± .3 Nm
Key #
Part #
Description
---------108344 Overhaul Parts Kit, 2nd Stage MK/LV2
---------108315
MK Second Stage Assy, Spare
---------108468
MK Second StageAssy., Spare USCG/CBP
14--------820015P
16--------820010P
40--------100904
41--------100906
42--------100909
43--------100181
44--------102510
45--------100923
46--------104129
47--------100945
48--------104134
49--------104127
50--------104122
51--------106738
52--------108338
54--------100905
55--------104913
56--------100922
57--------100907
58--------105831
Parts Not Shown
n/s-------100653
n/s-------102835
n/s-------100625
n/s-------108414
O-ring (10 pk)
O-ring (25 pk)
Front Cover
Ring, Retaining, Threaded
Ring, Cover Support
Diaphragm
Locknut
Lever
Washer
Valve Body
Poppet Bearing
Spring
Poppet
Disc Seat
Inlet Fitting
Box Bottom, Black
Clamp
Exhaust Valve
Exhaust Cover
Mouthpiece
Mouthpiece Cover, SEA
Hose Assy MK, 20" Black
Hose Assy MK, 27" Black
USCG Hard Cover (replaces key # 40 & 41)
Part numbers in BOLD ITALICS indicate standard overhaul replacement part.
52
16
45 ± 3 in.lbs.
5.0 ± .3 Nm
28
SEA USER'S MANUAL
LV2 Second Stage
45 ± 3 in.lbs.
5.0 ± .3 Nm
50 ± 3 in.lbs.
5.6 ± .3 Nm
16
66
55
52
51
14
50
49
63
48
43 47
61
64
60
65
59
45
46
Key #
44
Part #
---------108344
---------108402
--------14--------820015P
16--------820010P
43--------100181
44--------102510
45--------100923
46--------104129
47--------100945
48--------104134
49--------104127
50--------104122
51--------106738
52--------108438
59--------100652
60--------100119
61--------100104
63--------108374
55--------104913
64--------100122
65--------108371
66--------108373
Parts not shown
n/s-------108391
n/s--------108392
n/s--------108453
Description
Overhaul Parts Kit. 2nd Stage, MK/LV2
LV2 Second Stage Assy., Spare
O-ring (10 pk)
O-ring (25 pk)
Diaphragm
Locknut
Lever
Washer
Valve Body
Poppet Bearing
Spring
Poppet
LP Seat
Inlet Fitting, Black
Cover, Hard, Purge
Retaining Ring
Front Cover
Box Bottom
Clamp
Exhaust Valve, 1.0"
Cap Exhaust Valve
Mouthpiece, LV2
Hose Assy, LV2, 20" Black
Hose Assy, LV2, 27" Black
Mouthpiece Cover, LV2
Part numbers in BOLD ITALICS indicate standard overhaul replacement part.
SEA USER'S MANUAL
NOTES
29
30
SEA USER'S MANUAL
NOTES
SEA USER'S MANUAL
NOTES
31
32
SEA USER'S MANUAL
Survival Egress Air
(SEA)
User's Manual
2340 Cousteau Court • Vista, CA 92081
Phone (760) 597-5000 • Fax (760) 597-4914
www.aqualung.com/militaryandprofessional/
©2010 Aqua Lung International
PN 108349 Rev. 12/10
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