Ocean Reef NEPTUNE SPACE PREDATOR User manual

1
OWNER’S MANUAL
PREDATOR
PREDATOR
PREDATOR

Neptune Space Predator Manual rel 2.3 December 2008
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NEPTUNE SPACE PREDATOR OWNER’S MANUAL
TABLE OF CONTENTS
NEPTUNE SPACE PREDATOR
1. Premise and warnings 4
2. Introduction 5
3. Technical characteristics 6
4. Use of conventional regulators 9
5. 1st stage SL 35TX 9
6. Quick steps 10
7. Equalization 11
8. Purging 11
9. Serial number 11
10. Replacement parts 11
11. Schematic and parts list (Neptune Space) 12
12. Schematic and parts list (SL 35TX) 14
13. Maintenance and cleaning 16
14. Storage 16
15. Communication 16
16. Accessories 16
17. Troubleshooting 18

Neptune Space Predator Manual rel 2.3 December 2008
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The DPIs (Individual Protective Device) scrutinized in these operating
instructions have undergone every possible test for design validation by:
Germanisher Lloyd
Vorsetzen 35
20459 Hamburg—Germany
Notified Body n.: 0098
Full face Mask Neptune Space and SL35TX
comply with CE Certification in accordance with 89/689/EEC directives
under the UNI EN250:2000 standard rules for underwater activities ,
including cold water use. PREMISE
The DPIs in question are a separate part of the self-contained underwater
breathing apparatus, commonly known as SCUBA.
They comply to European regulation EN-250:2000. They can be stored at a
temperature of between 32° and 140° F. It is necessary that this equipment
only be used by fully trained, certified divers.
Operating restrictions: The DPIs in question cannot be used with diving
products without the CE mark and the air supply must meet the
requirements of EN 12021. Incorrect use, non-original spare parts and
insufficient or poor maintenance, besides being dangerous to the health
and life of the user, releases ME.ST.EL S.r.l. of any responsibility and
nullifies the warranty.
The series of DPIs described in the following manual are the follwing:
(PREDATOR series)
 NEPTUNE SPACE with 1st stage SL 35TX: full face mask with
integrated 2nd stage regulator and SL 35 TX 1st stage
WARNINGS, CAUTIONS, NOTES
Pay special attention to information provided in warnings, cautions, and
notes, that is accompanied by these symbols:
AWARNING indicates a procedure or situation that, if not avoided, could
result in serious injury or death to the user.
ACAUTION indicates any situation or technique that could cause damage
to the product, and could subsequently result in injury to the user.
ANOTE is used to emphasize important points, tips, and reminders.
ATTENTION

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NEPTUNE SPACE PREDATOR
INTRODUCTION
The NEPTUNE SPACE PREDATOR mask was
developed through experience gained
from producing products for military
personnel protection. All designs and
materials were tested to obtain superior
performance and increased safety.
The high quality of the product does
not allow the user to ignore the
problems connected with the correct
use of the product and the rules for safe
diving.
GENERAL PRECAUTIONS AND WARNINGS
Before using this mask, you must have
successfully received training and
certification in the technique of SCUBA diving from a recognized
certification agency (or any U.S. Military or government operated diving
school). Use of this equipment by a person who is not certified by a
recognized agency shall render all warranties, express or implied, null
and void.
 Use of SCUBA equipment by uncertified or untrained persons is
dangerous and can result in serious injury or death.
 This mask is not configured for commecial use with surface
supplied air.
 Always pressurize the Neptune Space Predator gradually by
opening the cylinder valve SLOWLY.
 NEVER lubricate any part of the Neptune Space Predator or
cylinder valve with any lubricant. Lubrication must only be
performed by an OCEAN REEF trained technician.
 DO NOT apply any type of aerosol spray on the Neptune Space
Predator. Doing so may cause permanent damage to certain
plastic components, including the second stage housing.
 DO NOT leave a cylinder standing unsecured with the Neptune
Space attached to the valve. Doing so may cause permanent
damage to the Neptune Space Predator and cylinder valve if the
cylinder falls over against the first stage.
 Factory prescribed service for this product must be performed at
least once annually by a factory trained OCEAN REEF Service
Technician who is employed by an Authorized OCEAN REEF
Dealer. Repair, service, disassembly, or first stage adjustment
must not be attempted by persons who are not factory trained
and authorized by OCEAN REEF.
pic. 1

Neptune Space Predator Manual rel 2.3 December 2008
6 When diving in cold water (below 450F, or 70C), you must have
received training and certification in the techniques of cold water
diving from a recognized training agency.
 The Neptune Space Predator is designed and intended for use only
with clean, compressed atmospheric air. DO NOT use this
equipment with any other gas or enriched oxygen mixture above
23% oxygen. Failure to observe this warning may result in serious
injury or death due to fire or explosion.
Before connecting the regulator to the tank, check the following:
 Check that the O-ring on the tank is in place on the valve and is in
perfect working condition (INT WITH Yoke nipple CGA 850 version
only). If it is damaged or missing, it should be replaced.
 Verify that the instrumentation and accessories have been installed
correctly.
TECHNICAL CHARACTERISTICS
The Neptune Space Predator , the latest and most innovative mask in the
Neptune Series, has been designed with the technical experience gained
through 20 years of full face mask manufacturing.The Neptune Space
Predator has a state-of-the-art integrated regulator, a reduced internal
volume, an improved visualfield, and an integrated surface air valve.
The front cover of the mask’s state-of-the-art integrated regulator is
made of laser-cut ANTICORODAL®. This part has a light gold finish which
recalls the helmets of the first deep water divers. The adjustment knob
and its internal trim screw are made by stainless steel AISI 316 to provide
the maximum strength.
A stainless steel AISI 316 frame and six stainless steel fast-release buckles
not only give the mask a sturdy feeling, but also provide an unbreakable
framework. Each part is laser-cut and hand finished.
The mask design allows divers to make sensitive micro adjustments to the
airflow, even when using gloves. Surface treatments protect the mask
from salt water damage and tech polymer protection treatments allow the
Neptune Space PREDATOR to be used in extreme conditions.
The PREDATOR has a low internal volume, an improved visual field, and an
integrated surface air valve. It can be used with a communication unit and
many accessories. The total weight of the mask is 1030 g (2.27 lb) with a
positive buoyancy of just 232 g (0.51 lb), creating a light and comfortable
fit.
SIZES
The Neptune Space Predator is available in two
sizes, Small/Medium and Medium/Large.
In order to determine whether a diver should
wear a S/M or M/L mask, Ocean REEF has
designed a Mask Measuring Kit. The sizing and
measuring system were designed in accordance

7
with the official measuring procedure used in the Los Alamos Scientific
Laboratory Charts at the SBCCOM Mask Fit Facility-Aberdeen Proving
Ground (Maryland, USA). Before purchasing a mask, the customer may use
the caliper to take two simple face measurements. Using the Full Face
Mask Size Recommendation Chart, he or she can evaluate the size
category into which the measurements fall. There are three different size
categories on the chart: Small/Medium, Both, & Medium/Large. If the
measurements fall within the Both category, then the diver should
technically be able to wear either full face mask (M/L or S/M), and in that
case should try on a mask to select the best fit. Please note that the
chart boundaries fade. The fading areas represent less common face
measurements. It is very likely that a mask will still fit comfortably even
if measurements are located in these fading areas.
ADAPTABILITY
The newly redesigned bellows-type skirt with a “spring profile” and large
sealing surface (30-45 mm, double that of a conventional mask) is molded
of premium grade silicone rubber. The spring effect is achieved by a
combination of the double “S” section and the inner support ribs,
resulting in a comfortable fit and ample support. This allows the mask to
“float” comfortably on the face. The face seal and strap concepts are
Ocean REEF patents
VISUAL FIELD
The visor, made of transparent polycarbonate, is designed to be wider
and sit closer the face than previous full face masks. This design
maximizes the visual field, particularly the peripheral area. The visible
light transfer of the visor is 92%.
DURABILITY AND SCRATCHING RESISTANCE
The visor of the Neptune Space Predator can resist the impact of a 6.35
mm steel ball traveling at speeds of 540 km/hour (335 mi/hour). The visor
is coated on both sides with a siloxane resin to increase the scratching
resistance. For added protection during transport, the Neptune Space
Predator comes with a removable protective shield (to be removed before
diving).
THE HEAD HARNESS AND FRB II
The head harness straps are directly attached to the face shield, allowing
pressure to be distributed equally along the mask skirt. The six textile
straps of the Polar Mesh head harness hold the mask in a firm position due
to their low elasticity.
AIR CIRCULATION
The PREDATOR air circulation system is designed to minimize fogging and
reduce the amount of CO and CO2 build-up. The silicone oral-nasal pocket
is built with two newly redesigned one-way valves through which air is
inhaled. Exhaled air is directed through a newly redesigned valve under

Neptune Space Predator Manual rel 2.3 December 2008
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the oral-nasal pocket, limiting the mixing of this air (containing high
amounts of CO2) with the fresh air from the regulator. The direction of
exhaled air is controlled by a four position exhaust valve. The adjustable
valve allows exhaust to flow in four directions:
A—to the left
B—to the right
C—both (direction of least resistance)
D—no exhaust
Position D, the “off” position is used
when the diver is in a “head-down” position which, due to pressure on the
second stage, causes the regulator to free flow. Placing the exhaust valve in
the off position causes pressure to
build in the mask, preventing free flow and returning the system to an “air
on demand” situation.
SURFACE AIR VALVE
The PREDATOR is equipped with a newly designed surface air valve that
allows the diver to breathe ambient air while at the surface. The surface air
valve is easily adjustable with large air vents and easy turning
DRAINING AND PRESSURE EQUALIZATION
Water that may seep into the mask is easily eliminated by exhaling or
pushing the “purge” button on the second stage. Mask squeeze, a common
problem for conventional masks, will not occur with the Neptune Space
because the pressure inside the mask is equal to the pressure outside the
mask.
THE 3-D EQUALIZATION SYSTEM
The patented Ocean REEF 3-D equalization system is designed to allow
equalization during a dive. The system consists of a movable plate and two
eccentric blocks; these blocks move close to the nostrils when the upper
part of the visor is pressed. The blocks plug the diver’s nose allowing
equalization. Before donning the mask, the blocks may be moved up or
down depending on the length of the diver’s nose. They may also be
adjusted to fit wide or narrow noses. The system also includes extenders
which allow the distance between the blocks and the nose to be modified to
accommodate the diver’s face. The 3-D equalization system makes diving
more comfortable and inhibits any undesired pressure during a dive.
REGULATOR CHARACTERISTICS
The pneumatically balanced second stage provides consistent ease of breath
at any tank pressure. An inhalation adjustment feature allows the diver to
control air delivery under a variety of diving conditions. The Dive(+)/Pre-
dive(-) lever reduces free flow on the surface and provides maximum air
flow while at depth.
The purge button, made by premium grade silicone rubber, has a

9
temperature range of operations between -40°C and 70°C (-40°F and 158°F).
The purge button protection bezel is made of a high impact-resistant
double metallized/coated techno polymer.
USE OF CONVENTIONAL REGULATORS
A special adapter allows the connection of several kinds of regulators. The
adaptor is available in two sizes, medium (standard) and small. This adapter
fits in place of the surface air valve. (code 33020: S, code 33021: M)
USE OF OVER-INJECTED REGULATORS
Over injected regulators have a diaphragm with an inhalation cracking
pressure below zero. These regulators “free flow” easily, and as a result,
should not be used with the Neptune Space or other Neptune masks.
Changes in regulator performance can also be caused by the different
positions assumed during a dive; the use of a regulator with flow
adjustment is recommended.
When descending the adjustment knob must always be turned on to
get the proper air flow. Do not turn off the adjustment knob while
descending.
1ST STAGE SL 35 TX
The Neptune Space Predator may be used only with this high performance,
balanced diaphragm 1st stage with anti-freeze kit. The first stage has
adjustable medium pressure and is made of brass with a satin finish body,
stainless steel piston, Teflon seat, and stainless steel spring.
It is available with the following characteristics:
-Standard connection 200 bar (code 9922)
-DIN connection 300 bar (code 9923)
-2 high pressure ports 7/16 -20 UNF
-4 Medium pressure ports 3/8-24 UNF
-Flow rate of approx. 4800 l/m at 140 bars
(code 33020, 33021)

Neptune Space Predator Manual rel 2.3 December 2008
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QUICK STEPS
1. BEFORE DIVING
 Don the mask (make sure surface air valve or octopus port is open to
allow air in).
 Adjust the straps and test equalization.
 Remove mask and adjust equalization system, if needed (see diagram
on this card).
 Connect to 1st stage & tank. Open the tank valve slowly while pressing
the purge button of the 2nd stage and check that the air flows freely.
Release the button and check that air stops flowing.
2. DURING A DIVE
 Before submerging, push the aspiration knob to DIVE position “+”.
 Close surface air valve before descending.
 Breathe normally through your nose or mouth, whichever is most
comfortable.
 If water gets inside the mask, push the purge button while facing
straight ahead.
 To equalize, press the top part of the mask visor.
3. AFTER DIVING
 Carefully rinse the regulator with fresh, gently flowing water. Do not
press the purge button.
 Make sure the dust cover is firmly in place to keep water out of the
first stage
 Attach the regulator to the tank after rinsing and press the purge
button for 10-15 seconds to purge any water or debris from regulator.
 When storing equipment, do not tightly loop the hoses and avoid
pulling on them when the regulator is attached to the tank. Do not
bump the Neptune Space. If you do, check for any damage.
 When storing the mask turn counterclockwise the adjustment knob.
Ocean REEF highly recommends that you practice in a pool before using
your mask in open water.
2.1.
4. 5. 6.
3.
*Note the position of the strap in relation to the head (see left).

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EQUALIZATION
The Neptune Space Predator is equipped with a simple patented internal
device to close the nostrils and allow underwater equalization. By loosening
the screw it is possible to move the plate up and down to find the most
comfortable position to equalize. The silicone caps may easily be turned. By
turning the caps you may adjust them to fit a larger or thinner nose
(distance between the nostrils). Two additional plastic inserts are supplied.
By removing the silicone cap it is possible to install the insert in the plate
(cap post) increasing the distance of the cap from the plate and allowing it
to fit closer to the nostril. This is sometimes necessary for flatter noses or
when a hood is used under the mask.
To close the nostrils for equalization, simply press the top part of the mask.
The two equalization silicone caps will move upward and close the nostrils.
The silicone caps when correctly positioned should allow breathing through
the nose and close the nostrils only when pressing the top part of the mask
to equalize
PURGING
The mask can easily be purged in the event that water enters the mask by
pressing the exhaust button on the second stage. The water will flow out of
the lower valve. The diver should be facing straight ahead, with the exhaust
valve being the LOWEST part of the system.
SERIAL NUMBER
The regulator housing is marked with a serial number that identifies the
product for warranty purposes.
REPLACEMENT PARTS
Replacing the strap assembly (M-8 Strap)
To replace the six adjustable strap harness, manually extract the six straps
from their buckles. Then slip the six straps of the new harness through their
relative buckles making sure to keep the buckles in their seats. The arrow
in the center of the harness tab must point upward and be facing
outward.

Neptune Space Predator Manual rel 2.3 December 2008
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NEPTUNE SPACE PREDATOR rel.2.2
Part Code Key q.ty Part Code Key q.ty
M-8 Strap for FRB2 buckle 9003 1 1 O-ring balanced poppet 2.6 x1 15439 37 1
Polar Mesh strap 9007 1 1 Quick release 6810 4 2
SS Clamping band w/buckles—Predator
rel 2.0 OR006 803 3 1 Spring l 33-Ø thread 0,9-Ø.int.8,4 6966 39 1
Screw M4X6 OR006
804 5 1 Spring l 8,5-Ø thread 0,9-Ø int.5,5 6980 40 1
Cap Nut M4 OR00-
6805 2 1 Balance poppet chamber 15470 41 1
NG-24 Nut M3 3mm 6529 6 3 O-ring 2068 15446 42 1
N-6AS Face seal black medium / large 1351 7 1 Adjustment knob w/screw for Predator
–stainless steel OR006801 43 1
N-6AS Face seal black small / medium 1363 7 1 Trim screw for Predator stainless steel OR006802 44 1
Orinasal black 22mm holes(2) 28 (1) 1349 8 1 OR 2031 9409 45 1
Orinasal valve holder 1377 66 2 Predator Adjustment knob plug (LP plug) 9822 46 1
Orinasal valve 1376 9 2 Silicone button w/Space logo- black 20082 18 1
MI-14 Orinasal Band 6718 10 1 Diamond surface ait valve cup 8902 48 1
SB-5C Eccentric Equal. Block (2pcs) 6924 11 2 Thread locking ring for Diamond surface
air valve rel 7 8669 49 1
Equalizer extension ,short (2pcs) 6926 2 o-ring 2081 nbr 9644 50 1
Equalizer extension , long (2pcs) 6927 2 o-ring 3112 nbr 8643 51 1
Equalizer extension , x-long (2pcs) 6928 2 o-ring 3168 nbr 8644 52 1
Screw M4x8 15255 12 1 Surface air valve body 8656 53 1
Washer M4 for screw M4x8 15253 13 1 NG-12 O-ring 46,9x1,5 6501 54 2
SB-5A Equalizer 6925 14 1 NG-10 side connector bushing 6514 55 1
Regulator housing – Space w/drain. hole 8448 15 1 MP-2 Com System bushing rel 7.1 6549 56 1
Visor – Space 7015 16 1 NG-9 Side Connector 6304 57 1
Inhal. Diaphragm w/puck-Space rel 7 6781 17 1 NG-13 Standard seal 1361 58 1
Predator regulator front cover ERGAL
gold 20079 19 1 NG-9B Plug 6515 59 1
Screw short – Space regulator front cover
-M3 6962 20 1 Directional Exhaust valve cover rel 8.0 OR006511 60 1
Screw long – Space regulator front cover
-M3 6961 21 2 Directional Exhaust valve deflector rel 8.0 6504 61 1
O-ring 2010 6965 22 4 ER-09 Exhalation valve 8811 62 1
Hex nut 15433 23 1 Directional Exhaust valve holder rel 8.0 OR006510 63 1
Body washer 15257 24 1 M-10-O ring 2131 33x1,78 6710 64 1
Insert OR 2075 6964 25 1 NG-15 Bushing w/holes 6518 65 1
Insert 6970 26 1 800 mm standard hose 9950
O-ring x dive/predive 24 X 2 6963 27 1 Hose protector 9311
dive/predive 6972 28 1
O-ring 2025 9673 29 1 ANN.MANT.KIT SPACE 9800
Nozzle 9672 30 1 O-ring 2025 9673 29 1
O-ring 114 9420 31 1 O-ring 114 9420 31 1
Valve body 15532 32 1 seat balanced poppet 8866 35 1
Demand lever 15448 33 1 balanced poppet 9675 36 1
Wedge 15447 34 1 O-ring balanced poppet 2.6 x 1 15439 37 1
Seat balanced poppet 8866 35 1 O-ring x dive/predive 24 X 2 6963 27 1
Balanced poppet 9675 36 1 O-ring 2068 15446 42 1
O-ring 2010 6965 22 4
Insert OR 2075 6964 25 1

Neptune Space Predator Manual rel 2.3 December 2008
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Key Code R-DIN R-YOKE Designation
19810 1 1 Retaining cap
29811 1 1 Diaphragm Ø33 x 1.5
39812 1 1 Pressure piston
49813 1 1 Intermediate ring
59814 1 1 Anti freeze kit
69815 1 1 Adjusting screw
79816 1 1 Spring
89817 1 1 Spring Plate
99818 1 1 Friction Ring
10 9819 1 1 Diaphragm Ø36.9 x 2
11 9820 1 1 Piston guide
12 9821 1 1 Regulator body
13 9822 3 3 LP plug, 3/8 UNF
14 9823 4 4 O-ring 7,65 x 1,78
15 9824 1 1 Piston
16 9825 1 1 Guide ring
17 9826 1 1 Spring
18 9827 1 1 Retaining cap
19 9620 1 1 O-ring 2,9 x 1,78(2012)
20 9829 1 1 Back pressure ring 3,2 x1,5
21 9411 1 1 O-ring 14,00 x 1,78(2056)
22 9831 1 1 Balancing chamber
23 9832 2 2 O-ring 8,73 x 1,78
24 9833 2 2 HP plug, 7/16 UNF
25 9834 1 Yoke INT, 9/16-18 UNF
26 9835 1 Yoke screw, 9/16-18 UNF
27 7831 1 2 O-ring 9,25 x 1,78(2037)
28 9837 1 Yoke fastener
29 9838 1 Filter element YOKE
30 9839 1 Retaining ring
31 9840 1 Hand wheel fastener, 300 bar
32 9841 1 Filter element DIN
33 9842 1 Hand wheel DIN, 300 bar
34 9843 1 O-ring 10,82 x 1,78
35 9844 1 Retaining screw DIN, 300 bar
36 9845 1 O-ring 11,00 x 2,5
37 9846 Conversion kit, YOKE
38 9847 Conversion kit DIN, 300 bar
SL 35 TX (1ST STAGE) 4.0

Neptune Space Predator Manual rel 2.3 December 2008
16 MAINTENANCE AND CLEANING
For optimum longevity of the mask and the proper functioning of its
parts we recommend rinsing the mask thoroughly in fresh water after
every use. DO NOT clean the visor with any abrasive materials. We
recommend drying the visor, especially the inside parts, with a soft,
clean cloth.
STORAGE
The mask must be stored in a dry place with no direct sunlight and far
from sources of heat. Do not store it at temperatures below -4°F (-20°C)
or above +122°F (+50°C). We suggest you use the AC-4 visor protector and
the carrying bag included in the package when storing the mask to avoid
accidental abrasion (see section 2.4.3).
COMMUNICATION
COMMUNICATION APPARATUS
The Neptune Space Predator may be used with various communication
systems between divers and/or the surface. It is compatible with most
underwater communication systems if supplied with the proper adapter
and/or DIN connection. Information may be obtained from your Ocean
Reef dealer.
INSTALLING THE UNDERWATER COMMUNICATION SYSTEM
The microphone support (PTT) is screwed into the connection located on
the left side of the mask and identified with the words COMMUNICATION
SYSTEM. The GSM is installed on the left side of the head harness attaching
the Neptune Assembly Connection System (NACS) on the 2 visor supports as
per NACS/GSM instructions.
USE OF THE UNDERWATER COMMUNICATION SYSTEM
For correct use of the underwater communication system see its special
instructions.
ACCESSORIES
SWIVEL CONNECTION (code 33033)
 This accessory gives you the ability to have a 360° rotating
connection between the hose and the second stage.
TYPE OF ACTION AFTER A
DIVE
EVERY
YEAR
EVERY 2
YEARS
RINSE X
GENERAL FUNCTION CHECK
REGULATOR SERVICING X
MASK SERVICING X
BEFORE A
DIVE
X

17
 To assemble the swivel, first unscrew the hose from the second stage
with a proper tool. Then connect the swivel to the second stage and
tighten with proper tool (w/open wrench; not included). Next connect
the hose to the threaded part of the swivel connector and tighten.
 This operation should not be performed with the regulator connected
to the tank valve. During this operation be sure that there is no dirt or
debris between the components. Open the tank valve slowly, at the
same time pressing the purge button of the 2nd stage and check that
the air flows freely. Release the button and check that the air stops
flowing.
QUICK DISCONNECT HOSE (code 33032)
 This accessory gives you the ability for connection/disconnection
between the hose (coming from the first stage) to the second stage.
Both, for an emergency situation or for a simple disconnection of your
full face mask from your equipment.
 To assemble the component, first unscrew the hose from the first and
the second stages with the proper tool.
 Then screw the Quick Disconnect onto the second stage and tighten.
Next, screw in the Quick Disconnect Hose to the LP port on the first
stage and tighten.
 Then insert the female end of the Quick Disconnect Hose to the male
end of the Quick Disconnect.
 This operation should not be performed with the regulator connected
to the tank valve.
 During this operation be sure that there is no dirt or debris between
the components. After installing the regulator 1st stage on the tank,
open the tank valve slowly, at the same time pressing the purge
button of the 2nd stage and check that the air flows freely. Release
the button and check that the air stops flowing.
OPTICAL LENS HOLDER (code 33299)
The Neptune Space may be used with corrective lenses. Normal prescription
lenses can be used with the special optical lens support accessory. For
installation of the optical lens support inside the mask insert the slots on
the sides of the lens holder in the lateral ribs of the face seal.
PROTECTIVE SCREEN (code 6908)
The visor of the Neptune Space should be protected from scratching and
abrasion during storage and transport with accessory AC-4. To attach the
screen over the visor insert the four lateral holes of the AC-4 around the
buttons found on the band.
POLAR MESH STRAP (code 9007)
A fabric strap designed for use in extremely low temperatures. It may also
be more comfortable for divers with long hair.

Neptune Space Predator Manual rel 2.3 December 2008
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TROUBLESHOOTING
VISOR FOGS
WARNING SIGNAL THAT MASK IS NOT POSITIONED CORRECTLY ON
FACE!
a) orinasal mask positioned incorrectly or pinched
b) orinasal mask improperly seated—check that it is properly tucked
around communication port and exhaust valve
c) top harness straps pulled too tightly—loosen
d) bottom harness straps not pulled tight enough
AIR LEAKS
a) hair/hood trapped inside mask skirt
b) sewing on hood—skirt will not necessarily seal on all hoods,
especially if sewing on hood is where mask skirt fits
c) straps pulled too tightly or improperly
REGULATOR FREE-FLOWS
a) adjustment knob opened too much—regulate by closing knob in
face-down position
b) purge button has sand/pebbles stuck inside
c) regulator needs servicing *
d) 1st stage intermediate pressure not 140±3 psi / 9.5→9.8 bar
REGULATOR HARD TO BREATHE THROUGH
a) adjustment knob closed too much—regulate by opening knob in
face-down position
b) aspiration knob pushed to “-” instead of “+”
c) regulator needs servicing *
d) 1st stage intermediate pressure not 140±3 psi / 9.5→9.8 bar
FFM VIBRATES
a) harness straps not adjusted properly—tighten bottom straps
b) adjustment knob opened too much
c) Neptune Space adjustment too soft—make proper adjustment
with adjustment tool *
d) 1st stage intermediate pressure not 140±3 psi / 9.5→9.8 bar
CLAMPING BAND TEARS
a) improper removal technique
*OCEAN REEF recommends that the regulator be serviced at least
once a year, or after 100 dives. This should only be performed by
an OCEAN REEF dealer or an authorized OCEAN REEF repair
station which uses original spare parts. This also applies to any
periodic serving and/or repairs required.

19

Neptune Space Predator Manual rel 2.3 December 2008
20
www.oceanreefgroup.com
[email protected]
OCEAN REEF, Inc.
1699 La Costa Meadows Dr. Suite 101
San Marcos, CA 92078 (USA)
Phone [phone] Fax [phone]
Toll Free Phone: [phone]
OCEAN REEF
Via Arvigo 2 16010 Sant’Olcese Genova (Italy)
Phone [phone] Fax [phone]