Kirby Morgan EXO-26 User manual

EXO-26
Balanced Regulator
Full Face Mask
User Guide
Part #: 100-131
Kirby Morgan Dive Systems, Inc.
1430 Jason Way
Santa Maria, CA 93455, USA
Telephone [phone]
FAX [phone]
E-Mail: [email protected]
Web Site: www.KirbyMorgan.com
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. This manual is
made available for the express use of owner of this Kirby Morgan® product. No
part of this manual may be reproduced, stored in any retrieval system, or transmit-
ted, or used in any form or by any means, whether graphic, electronic, mechani-
cal, photocopy, or otherwise by technology known or unknown, without the prior
written permission of Kirby Morgan Dive Systems, Inc.
EXO® is a Registered Trademark of Kirby Morgan
Document # 120613002

2© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
Warranty Information
Kirby Morgan Dive Systems, Inc. warrants every new mask,
helmet, or KMAC Air Control System to be free from defects
in workmanship for a period of three hundred sixty ve (365)
days from date of purchase. This warranty covers all metal,
berglass, and plastic parts. This warranty does NOT cover
rubber parts, communications components, or head cushions. In
addition, due to the electrolytic nature of underwater cutting and
welding, chrome plating cannot be warranted when the diver
engages in these activities.
Should any part become defective, contact the nearest autho-
rized KMDSI dealer. If there is no dealer in your area, contact
KMDSI directly at [phone]. You must have a return
authorization from KMDSI prior to the return of any item, Upon
approval from KMDSI, return the defective part, freight prepaid,
to the KMDSI plant. The part will be repaired or replaced at no
charge as deemed necessary by KMDSI.
This warranty becomes null and void if:
1) The product is not registered with KMDSI within ten (10)
days of purchase.
2) The product has not been properly serviced and/or main-
tained according to the appropriate KMDSI manual.
In addition, the user is responsible to ensure that all
product updates as recommended by KMDSI have been
performed.
3) Unauthorized modications have been made to the prod-
uct.
4) The product has been abused or subjected to conditions
which are unusual or exceed the product’s intended service.
NOTE: Be sure to complete the enclosed warranty card and
return it to KMDSI immediately. No warranty claims will be
honored without a satisfactorily completed warranty card on le
at KMDSI.

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 3
Denition of Signal Words Used in this Manual
For your protection, pay particular attention to items identied by
signal words in this manual. These terms are identied as, CAU-
TION, WARNING and DANGER. It is especially important for you
to read and understand these sections.
BDANGER
This word indicates an imminently hazardous situation, which
if not avoided, could result in death or serious injury.
BWARNING
This word indicates a potentially hazardous situation, which,
if not avoided, could result in death or serious injury.
BCAUTION
This word indicates a potentially hazardous situation, which
if not avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices.
NOTICE
This word is used to address practices not related
to personal injury.

4© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
Table Of Contents
Warranty Information .......................................... 2
Denition of Signal Words Used in this Manual .............. 3
Chapter 1 EXO-26 Balanced Regulator Full Face Mask ..... 10
1.1 Introduction ............................................... 10
1.2 Design Purpose ........................................... 12
1.3 Specications ............................................. 13
Chapter 2 Operating Instructions ............................ 14
2.1 Receiving The Mask ...................................... 14
2.2 Before You Dive! .......................................... 14
2.3 Visual Inspection .......................................... 14
2.4 Clean The Face Port ...................................... 15
2.5 Adjusting The Equalizer .................................. 15
2.6 Checking Regulator Functions And Preparing The Mask
For Use ....................................................... 15
2.7 First Stage Regulator ..................................... 17
2.8 Overpressure Relief Valve ................................ 17
2.9 Recommendations For Donning Or Removing The Exo-26
................................................................. 18
2.10 Donning The Mask ....................................... 18
2.11 Removing The Mask ..................................... 19
2.12 Proper Hood Fit .......................................... 19
Chapter 3 In Water Operations ............................... 21
3.1 Introduction ............................................... 21
3.2 Water Entry ................................................ 21
3.3 Regulator Adjustment ..................................... 21
3.4 Spider Adjustment ........................................ 21
3.5 Purging Water From The Mask ........................... 22
Chapter 4 Post Dive Procedures ............................. 23
4.1 Post Dive Rinse ........................................... 23
4.2 Reassembly Of The Mask ................................. 23
4.3 Periodical Maintenance Of The Mask .................... 24
Chapter 5 Communications .................................. 25

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 5
BWARNING
Follow all the instructions in this manual carefully and heed
all safety precautions. Improper use of this diving mask could
result in serious injury or death.
BWARNING
Diving is a life threatening occupation. Even if you do ev-
erything right you can still be killed or injured. None of the
models of Kirby Morgan helmets or masks can prevent acci-
dents, injuries or death due to improper training, poor-health,
improper supervision, improper job requirements, improper
maintenance or acts of God.
If you have any questions concerning this manual, contact KMDSI (805) 928-
7772 or by Email at [e-mail] or Dive Lab Inc. [phone] or at
[email protected]
BCAUTION
Kirby Morgan Dive Systems, Inc. declines all responsibility for
accidents due to an incomplete understanding of the equip-
ment.
BCAUTION
This mask should be used only with breathing air meeting
requirements of EN132 standard, Appendix A.
NOTICE
This mask should be used only with equipment and accesso-
ries which are approved according to EN250.
BCAUTION
This mask should be used only with equipment using open
circuit compressed air. The use of an oxygen enriched atmo-
sphere is dangerous and not allowed

6© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
NOTICE
In accordance with the EN250 standard, the maximum ap-
proved depth for the use of the equipment is 50 meters (164
feet).
BCAUTION
Never use a solvent to clean the mask. Never use aerosol
sprays on or around the mask as certain solvents and propul-
sion agents attack and damage rubber and certain plastics.
BCAUTION
In order to use this mask it is ABSOLUTELY NECESSARY that
you follow a training course and RECEIVE CERTIFICATION,
issued by a competent training organization, confirming your
ability to dive. Use of a mask by untrained and unqualified per-
sonnel is DANGEROUS and could lead to serious accidents,
and/or death. Use of this equipment by a person who does not
possess certification issued by an appropriate organization
renders void any guarantee, express or implied, on this prod-
uct. This mask, as supplied, is intended to be used for Scuba
diving.
Before each use the mask should be carefully checked and
submitted to the operational tests. NEVER DIVE with a mask
showing any signs of deterioration or which has a below nor-
mal performance.
NOTICE
The hoses tted to the EXO-26 Full Face Mask, and supplied by KMDSI,
meet the requirements of the EN250 standard concerning the connection
of components. Only origional Kirby Morgan hoses should be used as
replacements.
- HP thread 7/1 6" - 20 UNF
- MP thread 3/8" - 24 UNF
Always allow pressure to build up slowly in the regulator by turning on the cylinder
valve SLOWLY.

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 7
Use only silicone grease on the rubber components. Never grease the parts of your
mask with a lubricant containing hydrocarbons, household oil, or motor oil.
Before diving in cold water (water temperature below 10°C / 50°F), you should rst
obtain specialized training and certication in the appropriate techniques from a
competent organization. You should also use equipment intended for this purpose.
The use of a CE approved rst stage regulator with a silicone oil chamber will
reduce the possibility of rst stage icing causing failure. Also, the diver should
have been trained and have mastered the techniques of cold water diving so as to
be able to take all precautions necessary to avoid freezing of the regulator. All of
this is included in the training programs of organizations offering courses in diving
in cold water or under ice.
In order to reduce the risks of regulator freezing when diving in cold water (below
10°C), consider doing the following:
1 - Protect your regulators from any accidental ingress of water into the rst or
second stages.
2 -Protect your equipment from cold before the dive. More precisely, keep your
mask and all its accessories in a warm dry place.
3 - Carry out all pre-dive checks of your equipment in a warm dry place if neces-
sary, before even going to the dive site.
4 - Avoid breathing through the regulator or pressing the purge button in very cold
air before entering the water.
5 - As far as is possible, avoid excessive effort during the dive.
6 - Check that the air used to ll your cylinder is dry. The water vapor contained
in this air should have a condensation point below -54oC. Excess water vapor can
freeze, causing a free ow, or can block the air ow completely.
The EXO-26 Balanced Regulator Full Face Mask described in this guide was
inspected and certied by a notied testing institution in compliance with EC direc-
tive 89/686 of 21 December 1989. Testing procedures were in accordance with the

8© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
same directive that sets forth the marketing conditions and key safety requirements
for Personal Protection Equipment (PPE Category III) regarding product quality
assurance and according to the European Standard EN 250.
REFERENCES TO EN 250 - OBJECT- DEFINITIONS - LIMITS
Object: The requirements and tests provided for in EN 250 are aimed at provid-
ing a minimum safety level for the operation of diving breathing apparatuses at a
maximum depth of 50 m / 164 feet.
Scuba - Denition (EN 1 32): Self-contained, open-circuit compressed air underwa-
ter breathing apparatus is an apparatus which has a portable supply of compressed
air carried by the diver, allowing him to breathe underwater.
Scuba- Minimum equipment (EN 250):
a) Air cylinder/ cylinders
b) Demand regulator
c) Safety device, e.g. pressure gauge / computer or reserve or alarm.
d) Carrying frame or holding device for air cylinder(s) to mount
the harness or carrying system, e.g. backpack and/or straps.
e) Face piece: mouth piece assembly or full face mask or
diving helmet.
f) Operating instructions.
SCUBA - Component Units (EN 250): The EXO-26 BALANCED REGULATOR
FULL FACE MASK described in this guide is to be used only with the KMDSI
rst stage regulator certied together with this mask according to EN250. It may
be combined with other SCUBA components such as cylinders and pressure gauges
certied in compliance with EC directive 89/686 and EN 250. The air contained
in the cylinders must comply with the requirements for breathable air set forth in
EN 1 32 - Appendix A.
DEFINITIONS (EN 250)
COLD WATER DIVING - water temperature below +1 0°C (50°F).
WARM WATER DIVING - water temperature over +1 0°C (50°F).
MAXIMUM DEPTH: 50 m / 164 feet.
STORAGE TEMPERATURES: +70oC / -30oC (max/min)

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 9

10 © Copyright 1970-2012 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 110201001
Chapter 1
EXO-26 Balanced Regulator Full Face Mask
1.1 Introduction
KMDSI has been designing and manufacturing SCUBA, commercial, scientic,
search & rescue, and military diving equipment for over fourty years. Many of
our products have become the standard of the industry due to their design, high
quality, and outstanding performance. The Balanced Regulator EXO-26 are part
of this continuing tradition.
NOTICE
This user guide gives the user basic daily operational information for the
EXO-26 Balanced Regulator Full Face Mask. For detailed maintenance and
use information, please refer to the EXO-26 Operations and Maintenance
Manual, KMDSI part # 100-030.
The following is a list of features to be found on the Balanced Regulator EXO-26:
1) Fully Adjustable Regulator:
The regulator is fully adjustable over a wide range of operating pressures. By
simply turning the Adjustment Knob while diving, you can “tune” your regulator
for your type of diving.
2) EXOthermic™ Exhaust System:
The regulator assembly in the Balanced Regulator EXO-26 isolates the intake and
exhaust chambers from one another. The diver’s own breath assists in reducing
thermal drain by warming certain areas of the regulator. This helps to eliminate
freeze ups in cold water diving.
3) Earphone Pockets:
The earphones are allowed to equalize because all interior parts of the mask share
a common cavity. There is never a need to adjust their position and they are easily
accessible.
4) EXOskeleton:
The outer frame, or EXOskeleton, serves several functions. It protects the face
seal and is used to mount external components, such as the regulator, lens, and
communications.
5) Suspension Face Seal:
The suspension area of the face seal is attached to the EXOskeleton by ve mount-
ing legs, much like a trampoline. In this way, the seal allows the face to seal on a

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 11
EXO-26 Balanced Regulator
soft exible area. This means the EXO-26 will t many different sizes and shapes
of faces. The extra area behind the face seal allows a foam pad to be inserted for
extra small (narrow) faces.
6) Modular Communications:
Microphone and earphones can be easily and quickly replaced. Simply remove the
mounting nut and push the entire module to the inside of the mask. The earphones
can then be removed. A spare comm set is recommended for rapid replacement in
the eld if needed.
7) Oral Nasal:
The oral nasal on the Balanced Regulator EXO-26 full face mask lowers CO2
levels, and improves communications.
8) Equalizer:
An ear equalizing device (nose block device) is now a standard feature on both
D
I
V
I
N
G
S
Y
S
T
E
M
S
I
N
T
N
'
L
S
A
N
T
A
B
A
R
B
A
R
A
C
A
.
/
U
.
S
.
A
.
TEMPERED
buckle
mask lens
purge button
spider
regulator
adjustment knob
regulator exhaust
mask frame
communications
module

12 © ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
EXO-26 Balanced Regulator
masks and is used to equalize the divers ears. This device is easily adjustable and
ts a variety of noses and faces.
9) Balanced Regulator:
The EXO-26 has been supplied with a balanced regulator. This balanced regula-
tor has an adjustment knob for adjusting to a wide range of operating pressures.
1.2 Design Purpose
The Balanced Regulator EXO-26 Full Face Mask may be used with SCUBA gear.
The Balanced Regulator EXO-26 permits nearly normal speech, making the mask
an excellent choice for use with wireless communications. The mask is also well
suited for ice diving operations and has been used successfully in the Arctic under
subzero conditions. It is an ideal mask for light commercial work, for the diving
scientist, and for search and rescue operations. Many search and rescue teams use
the EXO-26 for diving in biologically contaminated water.
BCAUTION
Contaminated water diving operations are extremely hazard-
ous. They should NOT be attempted unless all members of the
dive team have been trained for this type of diving. You must
check to ensure that every piece of the diver’s equipment is
compatible with the contamination to be encountered. If there
is the slightest doubt regarding what contaminants are in the
water, the diver must NOT dive.
BWARNING
Do not dive this mask in water containing high concentrations
of petroleum based chemicals. Clean the mask using only
mild detergent and water.

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 13
EXO-26 Balanced Regulator
1.3 Specications
Weight: 4.65 Pounds
Construction:
-EXOskeleton / PolyCarbonate
-Face Seal / Neoprene Blend
-Regulator Body / Noryl®
-Hardware / Stainless Steel & Chromed Brass
-O-Rings / Buna N
-Spider / Neoprene
-Equalizer / Urethane
Recommended Lubricant: Silicone Grease, Dow Corning 111.
Balanced EXO-26 Regulator Operating Pressures: 115psi-250psi over ambient.
Optional Communications Systems:
8 ohms, accepts hardwire or wireless systems.
BCAUTION
The Balanced EXO-26 is not intended for oxygen service or
use with higher partial pressures as in compressed air.

14 © Copyright 1970-2012 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 110201001
Chapter 2
Operating Instructions
This section provides the manufacturer’s recommendations on how to use the
Balanced EXO-26 Full Face Mask. The use of this diving mask will vary with the
type of diving and environmental conditions. A proper training program in the use
of full faced masks must be undertaken. Practice using the mask in a calm, clear
body of water (pool) before using for open water diving.
2.1 Receiving The Mask
When you rst receive your Balanced Regulator EXO-26 Full Face Mask, carefully
unpack it and examine it for any damage that may have occurred during shipment.
Use the inspection sheet provided to ensure that no damage has occurred!
Be sure to complete the enclosed warranty card and return to KMDSI as soon as
possible. Warranty claims require that a card be on le at KMDSI 10 days after
purchase.
2.2 Before You Dive!
Before dressing in for a dive, an inspection of the mask and all related gear should
be made to insure everything is in proper working order. This should be done well
in advance of the dive, so any problems or adjustments can be dealt with. Read
and understand this manual before you dive. This chapter gives basic operat-
ing procedures and how to perform the pre-dive mask inspections and pre-dive
regulator function tests.
2.3 Visual Inspection
Visually inspect the entire exterior and interior of the mask.
- The face seal should be in good condition with no cracks, tears, or punctures.
- The spider (head harness) should be intact. Stretch the spider and inspect it care-
fully for signs of cracking or tearing.
- Inspect the face port. It should be clean and clear. Anti fog solutions should be
applied prior to use.
- Check the communication module mount nut to ensure it is screwed down tight.
- Inspect the oral nasal and Equalizer and make sure that they are securely mounted.
- Check the regulator assembly to ensure it is secured tightly on the mask frame.
- Check the regulator cover to ensure it is tight on the regulator body.

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 15
Operating Instructions
- With no air to the mask, screw the regulator adjustment knob all the way out and
back in to be sure it turns freely.
2.4 Clean The Face Port
Remove any sand or debris from the interior of the mask and face port which may
interfere with the divers vision, be inhaled, or blown into the divers face.
Under certain conditions, depending upon water temperature, you may nd it
necessary to prep the mask lens to keep it from fogging while diving. There are
a number of commercial defoggers available for scuba diving which work well.
Follow the directions on the label for use. If no commercial preparation is available
it is possible to use soap. Use a small amount of liquid soap on a rag and smear a
thin lm on the inside of the lens. Do not rinse this lm off. Apply the soap just
prior to entering the water.
2.5 Adjusting The Equalizer
The Equalizer can easily be adjusted. Simply peel the Equalizer out of the Wire
Retainer and reposition it in another one of the molded grooves in the Equalizer.
The Wire Retainer can also be slightly bent in one direction or another, up or
down, to get the angle of the Equalizer just right. Insure that the corners of the
Equalizer grooves are “snapped” into position on the Wire Retainer so that it does
not come loose.
2.6 Checking Regulator Functions And Preparing The Mask For Use
Attach the low pressure hose that is supplied with the mask, to the low pressure
(L.P.) port on the 1st stage regulator and then to the mask. Never connect the hose
or mask to a high pressure (H.P.) port. When attaching the hose to the regulator
ALWAYS USE A BACK UP WRENCH ON THE NIPPLE TUBE.
BCAUTION
A backup wrench must be used on the hex tting of the regu-
lator when tightening. Otherwise the regulator may come out
of adjustment!
Prior to attaching the rst stage regulator to your tank, be sure the regulator adjust-
ment knob on the mask is screwed all the way in. This will prevent the regulator
from free owing when the air is turned on.
Your rst stage regulator shall be equipped with a safety device such as a submers-
ible pressure gauge. Attach the rst stage to your tank and turn the air on while

16 © ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
Operating Instructions
holding the submersible pressure gauge away from you. Once the air is on, check
the pressure gauge to ensure you have a full tank.
BCAUTION
A submersible pressure gauge is considered essential for full
face mask scuba diving. The diver must plan his dive to avoid
running out of air while wearing a full face mask. There is no
way to safely buddy breathe underwater, use an octopus rig,
or snorkel on the surface while wearing a full face mask. If the
submersible pressure gauge should fail during the course of a
dive, the dive should be terminated immediately
Check the mask regulator for pre-dive adjustment and function. The Balanced
Regulator EXO-26 masks are preset at KMDSI with an intermediate pressure of
135-145 psi. Starting with the regulator adjustment knob screwed all the way in,
back the regulator adjustment knob out 3 full turns. There should be no indication
of air ow through the mask if the intermediate pressure on your rst stage regula-
tor is set at around 135-145 psi. Higher rst stage regulator pressures may cause
free ow, but turning the regulator adjustment knob in, should stop the ow. In
the unlikely event there is still ow, proceed to the regulator adjustment section in
chapter 5 of the EXO-26 Operations and Maintenance manual ( Part # 100-030)
to reset the regulator.
Loosen all the straps on the Spider and hold the mask on your face. Take a couple
of good breaths. Breathing slow and soft at rst then hard and fast. The regula-
tor should be operating with the minimal amount of breathing resistance and no
free owing. Any type of an air ow “hiss” should be able to be adjusted out by
using the adjustment knob. If the adjustment knob is adjusted all the way in and
the regulator still hisses, see the regulator adjustment section in chapter 5 of the
EXO-26 Operations and Maintenance Manual.
Press the purge button a couple of times. There should be a
fairly strong air ow into the mask. If there is no ow when
pressing the purge button, or if the regulator is hard to breath,
see the regulator adjustment section in chapter 5 of the EXO-
26 Operations and Maintenance manual.
Once you enter the water the regulator can be adjusted for a
variety of diving conditions and positions just by turning the
adjustment knob in or out.

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 17
Operating Instructions
2.7 First Stage Regulator
The rst stage regulator used on the air supply bottle shall be a CE approved
high-ow unit such as the KMDSI SuperFlow® regulator. A submersible pressure
gauge shall be connected to the regulator to enable the diver to monitor the status
of his air supply.
The Super Flow® 1st Stage Regulator is Part # 305-161.
2.8 Overpressure Relief Valve
The rst stage regulator must be tted with a KMDSI High Flow Overpressure
Relief Valve ( Part # 200-017). This valve is included with the Balanced EXO and
must be installed in a low pressure port on the rst stage regulator. The purpose
of this valve is to allow the regulator to bleed off excess pressure should the rst
stage develop an internal leak. If the rst stage leaks and this valve is not present,
the pressure between the rst stage regulator and the second stage could increase
until the hose ruptures. This will cause a complete loss of the air supply. It could
also lead to injury of the diver due to the whipping action of the hose.
Part # 200-017, Overpressure Relief Valve
The KMDSI Overpressure Relief Valve
has been manufactured in two different
ow rates. The original valve had a
lower ow rate than the current valve.
The newer valve has been marked
in two ways, the rst being a groove
around the ats of the hex. Currently
the valve is marked with a groove
around the top of the body. This is the
same valve, just different markings.
Do not use the older KMDSI Overpressure Valve Part # 200-015. It does not have
the groove cut in the valve body.
BCAUTION
The certied KMDSI rst stage regulator used with the EXO-
26 MUST be equipped with a KMDSI High Flow overpressure
relief valve. In the event the rst stage leaks there is no way
for the pressure in the hose attached to the second stage to
relieve itself. The hose may rupture, leading to a loss of air
supply and possible personal injury to the diver.
New 200-017
Old 200-015
Groove

18 © ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
Operating Instructions
2.9 Recommendations For Donning Or Removing The Exo-26
Become familiar with the way in which the mask attaches and properly ts your
face. Because the face seal ts the face well when loosely tted, it is easy to as-
sume that this is how the mask should be worn. This assumption is incorrect and
can cause negative results when diving.
Wearing the mask with an incorrect adjustment will not allow the divers face to go
far enough into the mask. The air space inside the mask will be excessive causing
possible buoyancy and problems with the t of the seal and oral nasal. The main
portion of the face seal is very exible and should be stretched to form a proper seal.
The spider (head harness) and buckles are also important for proper function of the
face seal. The spider legs and rear head cup are all shaped to pull the mask up to
the face. The head cup should be placed as low as possible to reduce jaw fatigue.
The buckles swivel (except the top) to allow the spider to nd its natural correct
position. Do not try to force the buckles to swivel completely around. They are
allowed free but limited movement to keep the spider from becoming entangled
while the mask is being handled.
2.10 Donning The Mask
1) Make sure that all other gear is properly donned, the air is on, and regulator
functions and communications tests have been done.
2) Make sure all 5 legs of the spider are loosened all the way.
3) While holding the mask in position by the chin cup, begin tightening the spider
at the bottom straps, but not all the way.
4) Make sure the cup of the spider is centered on the back of your head. It should
be low, but not down on your neck.
5) Next, tighten the top two straps above the temples. Alternate between top and
bottom straps until the face is positioned properly and snugly into the mask.
The mask is usually the most comfortable when your nose is partially into the
nose pocket. The top center strap can be tightened slightly to give support to the
mask while standing by for water entry. Once in the water this top strap may be
loosened. Sometimes, if the top strap is too tight and the diver’s hood lls with air
while diving, the hood pushing against the top strap may cause the mask to lift up
on the face. The spider may be readjusted during a dive.

© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002 19
Operating Instructions
2.11 Removing The Mask
1) Grasp the bottom of the mask on each side where the buckles are attached.
2) With your thumbs, push the tabs on the buckles all the way forward. They will
stop traveling once they hit the buckle caps. Hold the buckles forward.
3) At this point, push the bottom portion of the mask away from the face as if it
were hinged to your forehead. This will release the bottom legs of the spider and
allow quick and easy removal of the mask.
2.12 Proper Hood Fit
The type of hood that a diver chooses may have direct bearing on the t and
comfort of the Balanced Regulator EXO-26. Excess material on the chin and or
jaw will keep the mask from positioning properly and possibly cause jaw fatigue.
This may also prevent the diver’s face from getting far enough into the mask. If
using a neoprene wetsuit hood, you may want to trim material from the cheek bone
downward to under the front part of the chin.
When using a dry suit with a latex hood, no adjustment should be needed. How-
ever, if the hood covers too much of your face, you may want to trim these areas.
To properly trim your hood, use the following procedure:
1) With the hood in position on your head, don the mask as outlined in this chapter.
2) Have someone bend the earphone pockets forward and start marking the hood
at the edge of the face seal, starting at the cheek bone area, then go down under
the chin and up the other side to the opposite cheek bone area.
3) Remove the mask and hood. Leave approximately 1/4" extra material from the
line marked and trim the excess material away.
Your hood should now work very well with the mask. Because the face is in a dry
air cavity being warmed by body heat, hood material on the face is not needed to
keep the face warm.
KMDSI makes a hood tailored to the Balanced Regulator EXO-26. It must be
trimmed in the same fashion as above. The face seal area is a thinner, two sided
skin neoprene for a superior seal.

20 © ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
Operating Instructions
A small hole can be punched in the top of the hood to relieve any build
up of air inside. Put the hole or holes on either side of where the top spider strap
lays.