dcfd scba manual

5/21/2018 Dcfd Scba Manual

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DISTRICT OF COLUMBIA

FIRE DEPARTMENT

SELF CONTAINED

BREATHING APPARATUS

MANUAL

OCTOBER 2007

FOREWORD DEPARTMENT POLICY

CHAPTER 1 RESPIRATORY PROTECTION

HEAT

SMOKE

TOXIC GASES

CHAPTER 2 SCOTT AIR-PAK FIFTY SPECIFICATIONS

CHAPTER 3 INSPECTION AND TESTING

CHAPTER 4 DONNING THE SCBA

CHAPTER 5 NORMAL OPERATION

EMERGENCY OPERATION

REDUCED PROFILE MANEUVER

CHAPTER 6 RETURNING THE SCBA TO SERVICE

CHAPTER 7 AIR UNIT SOPS AND GUIDELINES


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DEPARTMENT POLICY

Mandatory Use of Self Contained Breathing Apparatus

All members of the District of Columbia Fire Department shall don Self Contained Breathing Apparatus(SCBA) when anticipating entry into oxygen deficient, toxic, or otherwise hazardous atmospheres.

Prior to entering these atmospheres, all members shall don and use SCBA until the contaminated area isproperly and adequately ventilated.

Members using SCBA in hazardous atmospheres shall monitor the amount of air remaining in their air sup

cylinder, and shall leave the hazardous atmosphere with enough reserve air supply to ensure that they safely exit the hazardous atmosphere.

All members should be aware that the overhaul stage of fire fighting operations is often the most hazardou

terms of exposure to toxic gases. SCBA shall be used during this stage of the fire incident to prevent injuand health risks resulting from the exposure to toxic atmospheres.

Assignment of SCBA

When assuming duty, Platoon Commanders and company members are held jointly responsible that:

Each on-duty member is assigned an SCBA.

AND

The Company has the appropriate number of additional SCBA available

to meet the company needs.

Inspection of SCBA

On assuming duty, members shall perform all tests and inspections necessary to ensure that their assigneSCBA is in a usable condition, and that it will operate as designed when needed.

After an incident where SCBA has been used, members shall ensure that their assigned SCBA is cleaned

tested for serviceability, and restored to a condition of full readiness.

Unserviceable SCBA shall be removed from service, tagged with the SCBA Repair Request Form, returned to the Mask Room for repair. The Company shall be placed out of service if each on-duty memdoes not have a properly functioning SCBA. Replacement SCBA shall be obtained, inspected, and tes

before the Company is placed back in service.

A journal entry shall be made noting the number of SCBA used, the approximate duration of use, and an

malfunction experienced or damage sustained to the SCBA.

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CHAPTER 1

RESPIRATORY

PROTECTION

HEAT

SMOKE

TOXIC GASES

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Respiratory Protection for the Modern Firefighter

The fire fighting profession has changed in many ways in recent years. These changes have occurrednot only in the technology and methods of fighting fire, but in the firefighter's approach toward the

profession as well.

In past years, the firefighter's willingness to "eat smoke" was often viewed as a measurement ofcourage. This do and die approach to fire fighting operations has been exposed as not only foolish, but

extremely dangerous as well. Recent statistics have shown that firefighters are dying on the average

of eight to ten years earlier than their non fire fighting peer group, primarily due to exposure to

poisonous gases.

The professional firefighter recognizes the danger of this thinking, and would never hesitate to donand use SCBA when its use is indicated. SCBA is an important component of the personal

protective equipment (PPE) used to protect firefighters during the performance of their duties.

Used properly, PPE and SCBA allow the trained firefighter to safely operate in oxygen deficient,

toxic, or otherwise hazardous atmospheres found during fire, hazardous material, and confinedspace incidents.

Fire suppression activities expose firefighters to the hazards of oxygen deficient atmospheres and

the by-products of the combustion process: heat, smoke, and toxic gases. The heat, smoke, and toxic

gases encountered during fire fighting operations will have an adverse affect not only on thefirefighter's performance, but on their long term health as well.

Heat

Heat is a basic by-product of the combustion process and is encountered in all fire fighting operations.

When a fire creates heat beyond the threshold of human endurance, it can prove fatal to unprotectedhuman beings.

Exposure of the unprotected respiratory system to high heat levels can damage the respiratory tract,

leading to pulmonary edema, or fluid collection in the lungs. This fluid build up can kill by

asphyxiation, or cause a decrease in blood pressure, which leads to the failure of the circulatorysystem due to the collapse of capillary blood vessels.

Firefighters should not enter atmospheres that have temperatures exceeding 120 to 130 degrees

Fahrenheit without protective clothing and FULL respiratory protection. Several studies have shown

that even at these moderate temperatures, a firefighter could inhale only one or two breaths ofmoisture-laden air (as produced by a hose stream in a heated atmosphere) without seriousconsequences.


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Smoke

When burning occurs, fuel combines with oxygen and starts to deplete the oxygen content in a given

area. If the oxygen content is unlimited, most of the irritants are burned off, and relatively smallamounts of carbon monoxide, carbon dioxide, and other compounds remain.

If the oxygen content is limited during the combustion process, large amounts of formic acid, carbolic

acid, acetic acid, and ethyl alcohol, along with carbon and tar particles are produced. The more

incomplete the combustion process, the more dense and obscuring to vision the smoke willbe.

This dense smoke not only obscures vision, causing disorientation and panic, but also acts as an

irritant to the unprotected membranes of the respiratory passages: the nose, trachea, bronchial tubes,

and lungs.

Toxic Gases

The development and composition of toxic gases depend on the type of material burning, the rate at

which the material is being heated, the oxygen content near the burning material, and the temperatureof the evolved gases.

The inhalation of toxic fire gases is the leading cause of fire deaths in the civilian population. It is

estimated that 80 percent of all fire casualties succumb to the toxic effects of fire gases before ever

being touched by flame.

Studies into the hazardous properties of fire gases have shown that the following gases are the

primary cause of fire deaths due to toxic gas inhalation: carbon monoxide (CO), carbon dioxide

(CO,), hydrogen sulfide (H2S), sulfur dioxide (SO2), hydrogen cyanide (HCN), hydrogen chloride(HO), and phosgene (COCI2).

Carbon Monoxide

Carbon monoxide, a colorless, odorless, flammable gas, is slightly lighter than air. Carbon

monoxide is present with every fire, and is the most abundantly produced fire gas. The production

of carbon monoxide is dependent upon the amount of oxygen available for burning. If there isavailable oxygen present for the combustion process, the production of carbon monoxide decreases

and the production of carbon dioxide increase. In a smoldering oxygen-deficient fire this ratioreverses, and a greater amount of carbon monoxide rather than carbon dioxide is produced. At

concentrations of 3,200 parts per million (ppm), or .32 percent, carbon monoxide is an extremely

lethal gas, causing unconsciousness after a thirty minute exposure. When the concentration rises toslightly more than 12,800ppm (1.28 percent), unconsciousness occurs immediately upon exposure,

with death following in one to three minutes. Department standards dictate that SCBA will be usedwhen the concentration of carbon monoxide exceeds 35ppm (.0035 percent).


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Carbon Dioxide

While most familiar to firefighters as an inert gas used in hand portable fire extinguishers, carbon

dioxide, a colorless, odorless, nonflammable gas, is produced by the combustion process. Theexchange of carbon dioxide from the blood stream into the lungs stimulates the respiratory center of

the brain, increasing the rate of respirations.

The normal concentration of carbon dioxide in the atmosphere is 300ppm (.03 percent). When

carbon dioxide at 5,000ppm (.5 percent) concentration is breathed in, there is a marked increase inrespiration, along with dizziness, sweating and mental excitement. Concentrations of 100,000 to

200,000ppm (10 to 20 percent) may cause death within a few minutes due to paralysis of the

respiratory center in the brain.

Hydrogen Sulfide

The incomplete combustion of material from living things, such as wool, rubber, and hair yields

hydrogen sulfide. Hydrogen sulfide is extremely poisonous and affects the nervous system.

Exposure to hydrogen sulfide causes a rapid breathing rate followed by complete respiratorycollapse.

Sulfur Dioxide

The complete oxidation of sulfur-containing materials such as wool, rubber, and some woods are

responsible for the formation of sulfur dioxide. Sulfur dioxide has an extremely irritating effect on theeyes and respiratory tract, however, the quantity produced by the combustion process is too small

to be considered toxic.

Hydrogen Cyanide

Hydrogen cyanide is a highly toxic colorless gas produced by the incomplete combustion ofnitrogen containing materials such as wool, nylon, polyurethane foam, rubber, and paper. This gas,

which has a noticeable "bitter almond"odor, can cause gasping respiration, muscle spasms, and an

increased heart rate. Hydrogen cyanide kills by interfering with the oxygen exchange at the cellular

level, preventing tissues and cells from absorbing and using oxygen. Collapse from hydrogen cyanide

is sudden, with death occurring very quickly.

Hydrogen Chloride and Chlorine

Hydrogen chloride is a colorless gas is produced by the combustion of materials containingchlorine. Polyvinyl chloride (PVC) is the most notable source of hydrogen chloride due to its use as

electrical insulation and conduit, as well as for the piping of interior water lines (bath, kitchen, laundry

room, etc.). PVC may also be found in latex paints, floor coverings (both sheet goods and carpeting),appliance housings (televisions, radios, and stereos), clothing, and furniture coverings.


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Hydrogen chloride affects the human body by causing swelling of the upper respiratory tract, by

acting as an irritant to the heart muscle, and by causing irregular heart rhythms. Hydrogen chloride

gas, when combined with moisture, forms hydrochloric acid, which can burn and blister the mucous

membranes of the nose, the linings of the lungs, and the tissue of the mouth and throat. The overhaulstage of fire fighting can be the most dangerous in terms of the firefighter

's exposure to hydrogen

chloride. It is during the overhaul stage when materials that contain PVC will give off chlorine gas.

An example of this gas release after extinguishment can be found in the heat sink effect of chlorine-

containing materials burned on untreated concrete. These materials will continue to release gas notonly after the fire has been extinguished but also when the concrete cools. Normally, during the

overhaul stage, more gas is then released, exposing those members not using respiratory protectionto chlorine gas.

Phosgene

Phosgene is a colorless gas produced when refrigerants, such as Freon, used in refrigerators, air

conditioners, and beverage coolers come in contact with flame. It has a "musty hay" odor, which

serves as the only indication to its presence.

Phosgene decomposes into hydrochloric acid when in contact with water. The lungs and bronchialtubes are always moist; therefore, damage in the form of burning and blistering of these areas will

occur to the unprotected firefighter.

The Toxic Effect of Carbon Monoxide

and Carbon Dioxide

Of the many fire gases produced, two in particular, carbon monoxide and carbon dioxide, can havea devastating effect on the human body. When acting together, increased levels of these two gases,

even in the absence of other fire gases, can cause unconsciousness and death in a short period oftime.

The earth's atmosphere is composed of approximately 21 percent oxygen, 78 percent nitrogen, and 1

percent other gases. When inhalation occurs, this mixture enters the lungs and fills a series of tiny

sacs called alveoli. The air then diffuses through a thin membrane and a series of tiny red bloodvessels, into the blood stream. Plasma within the blood stream contains large complex molecules

called hemoglobin, used to transport oxygen. Hemoglobin combined with oxygen, called

oxyhemoglobin, carries oxygen to the cells, tissues, and organs of the body.

When respired air contains carbon monoxide, the effect on the body is immediate. Carbon monoxide

unites with hemoglobin 210 times more readily than does oxygen. This hemoglobin, now carryingpoisonous carbon monoxide and called carboxyhemoglobin, affects the tissues, cells, and other major

organs of the body. The body's most vital organs, the heart and brain, need large amounts of oxygen

to function properly and will be affected by even small amounts of carbon monoxide.


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When carbon monoxide displaces oxygen in the body, carbon dioxide starts to build up in the blood

stream. When carbon dioxide reaches the brain, it stimulates the respiratory center and causes an

increase in the depth and frequency of inhalations. Any increase in respiration at this time will cause

a sharp decrease in the body's oxygen level with a corresponding increase in carbon monoxide andcarbon dioxide.

In this physiological state, with the amount of oxygen in the blood decreasing, the amount of carbon

monoxide increasing, and carbon dioxide signaling the brain to increase respiration, personswithout respiratory protection have placed themselves in a serious, life threatening situation.

Unless the incident area is immediately and thoroughly ventilated, or the unprotected person

leaves the contaminated area at once, the following could take place:

The exposed, unprotected person will start to feel dizzy, and their vision will become

blurred. With carbon monoxide and carbon dioxide levels increasing, the color of

their blood will change from red to blue due to a lack of oxygen. In a short time,disorientation and unconsciousness will occur.

Shortly after unconsciousness occurs, the heart muscle will start to weaken, and

eventually death will occur due to respiratory collapse or heart failure.

The use of Self-Contained Breathing Apparatus (SCBA) is mandatory when working in

atmospheres that contain the products of combustion. Protection from the cumulative, long termeffects of smoke and toxic gasses is just as important as the protection from the hazards of heat and

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CHAPTER 2

SCOTT

AIR-PAK FIFTY

SPECIFICATIONS

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General Specifications of the Scott Air-Pak Fifty

Firefighters of the District of Columbia Fire Department are equipped with the Scott Air-Pak Fifty.

This lightweight, high pressure, Self-Contained Breathing Apparatus (SCBA) provides the user

with respiratory protection while working in oxygen deficient and/or toxic atmospheres. The Scott

Air-Pak F i f t y is equipped with an integrated Personal Alert Safety System (PASS). The ScottAir-Pak Fifty is automatic in function, requiring only the opening of the cylinder valve to supply

air to the facepiece and to place the PASS device into monitoring mode.

The Scott Air-Pak Fifty SCBA consists of the following major components:

1. Cylinder and cylinder valve2. Harness and backframe, EBSS (buddy breathing) hose and RIC UAC connection

3. Pressure reducing regulator4. Breathing regulator: Vibralert Alarm. purge valve, donning switch and heads-up display

5. Pak-Alert SE Distress Alarm: Sensor module and control console

6. Facepiece

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Cylinder and Cylinder Valve Assembly

The air supply cylinder of the Scott Air-Pak Fifty is constructed of aluminum inner shell over-wrapped wi

resin impregnated Kevlar or carbon reinforcing fibers. The air supply cylinder is pressurized to 4,500 po

per square inch (psi) for normal operation. A carbon fiber-wrapped cylinder weighs 19 lbs. When instalthe Scott Air-Pak Fifty backframe, which weighs 11.15 lbs., a 60 minute carbon fiber-wrapped cylind

brings the total weight to 30.15 lbs.

60-minute rated composite cylinders contain 87 cubic feet of air when pressurized to 4500psi. This60-minute rating depends on many factors, and is not a true indication of how long the air supply will

last during fire fighting operations. The type of work performed, the conditioning of the SCBAuser, and the fit of the SCBA facepiece all affect the service life of the SCBA.

The cylinder is equipped with a cylinder valve assembly, which controls the flow of air into andfrom the cylinder. The cylinder valve consists of a shut-off, a safety relief device (a frangible

copperdisc), and a pressure gauge.

The threaded portion of the cylinder valve is designed to prevent the accidental hook up of a high-pressure (4500psi) cylinder to a low-pressure system. Two bleed holes are located at the base of the

threaded outlet to allow air to vent to the atmosphere should the high-pressure cylinder be attached to

a low-pressure system. Composite air cylinders must be hydrostatically tested every five years by acertified testing facility to meet Department of Transportation (DOT) requirements.

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Harness and Backframe Assembly

The harness and backframe assembly is a lightweight stamped aluminum frame used to carry the air

supply cylinder, the pressure reducing regulator, the Pak-Alert SE PASS device, and the controlconsole.

The air supply cylinder is secured to the backframe by the cylinder latch at the bottom of thebackframe that engages the cylinder hanger assembly on the air supply cylinder, and with the cylinder

retention strap located near the top of the backframe. The identification for the harness is found on

the pressure reducing regulator or on the backframe of the harness and possibly the breathingregulator.

The harness assembly consists of two shoulder straps and a waist belt made of Kevlar, with integral

shoulder and waist pads. The control console assembly is located on the right shoulder strap along

with a quick connect connection covered by a dust cap to be utilized in emergency situations. An

accessory clip on the left shoulder strap is used to attach small items such as flashlights to theharness. Also on the left shoulder strap are the regulator and a Heads-Up Display Connector to be

utilized in emergency situations. Equipment should not be attached to the buckles of the harness, as

this could interfere with the adjustment of the shoulder straps. The waist belt is equipped with anautomotive style seat belt buckle with a push button release.

On the base of the harness on the left side is the quick charge, RIC UAC (Rapid Intervention

Coupling /Universal Air Coupling), coupling which is covered by a dust cap and is to be utilized

during emergency situations. The Quick Coupling on the facepiece regulator hose is utilized by

pulling the locking sleeve back and pulling apart the connection. It is reconnected in the reversemanner by pulling the locking sleeve back and pushing the connection together after which the

locking sleeve will lock in place.

The RIC UAC is to be utilized by, making sure the users SCBA is fully open, removing the dustcaps from the RIC UAC coupling on the SCBA and the RIC UAC filling hose assembly, checkingthe couplings for damage, pulling back the locking sleeve back on the RIC UAC filling hose

assembly and connecting the two with the locking sleeve locking in place. It is removed in the

reverse manner and the dust caps replaced after use.

The harness and backframe assembly is designed to carry the weight of the SCBA on the wearer's

hips to reduce fatigue. Firefighters should always use and adjust the waist belt to reduce themovement of the SCBA on the back, and to reduce the entanglement hazard of a loose strap.

WARNING

THE RIC UAC IS FOR EMERGENCY USE ONLY. INPROPER USE OF THE SYSTEM

MAY LEAD TO A MALFUNCTION OF THE EQUIPMENT WHICH COULD CAUSE

SERIOUS INJURY OR DEATH.

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HEADS UP DISPLAYCONNECTION

RIC UAC CONNECTION WITHDUST COVER OFF

RIC UAC CONNECTIOWITH DUST COVER O

RIC UAC CONNECTIONEBSS BUDDY BREATHING

HOSEEBSS BUDDY

CONNECTION

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Pressure Reducing Regulator

The pressure reducing regulator is located on the left side of the backframe, and consists of an

aluminum housing containing redundant dual path reducing systems, (primary and secondary

reducing circuits), an automatic transfer valve, and an over pressure relief valve. Under normal

conditions, air leaves the air supply cylinder through the cylinder valve, is passed through the highpressure hose, and enters the pressure reducing regulator at existing cylinder pressure. The primary

reducing circuit reduces the air pressure to 100psi, and air is sent through the low pressure hose tothe mask-mounted breathing regulator where it is further reduced in pressure.

When the air pressure remaining in the cylinder falls between 1,000 and 1,200psi, or the primary

pressure reducing circuit fails in the closed position, a transfer valve opens allowing the

secondary pressure reducing circuit to function. The secondary pressure reducing circuit reduces

the pressure of the air flowing from the cylinder to the mask-mounted breathing regulator fromcylinder pressure to 150psi.

The extra 50psi supplied by the secondary pressure reducing circuit activates the Vibralert Alarm,an audible end-of-service-time indicator.

The outlet manifold of the pressure reducing regulator is the attachment point for the low pressure

hose, and also contains a re-seat able over pressure relief valve set at 225psi. The over pressure

relief valve vents excess pressure to the atmosphere to protect the low pressure hose and breathingregulator from pressure over 225psi should the primary reducing circuit fail in the open position.

In the event of the primary reducing circuit failing in the open position, allowing air at over 225psi

to enter the outlet manifold, the relief valve on the outlet manifold will open. This limits the air

pressure supplied to the low pressure hose and breathing regulator. Air will continue to flow to thebreathing regulator, the Vibralert alarm will activate, and there will be a loud sound of escaping

air. The wearer must immediately follow the emergency procedure detailed in Chapter 5,

immediately notify their partner or Officer, and must immediately leave the contaminated

atmosphere.

Vibralert alarm is a low pressure device that warns the user that less than 25% of the full pressure(between 1,000 and 1,200psi) remains in the air supply cylinder.

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Breathing Regulator and Associated Components

The mask-mounted E-Z Flo breathing regulator contains the following components:

1. Donning switch

2. Purge valve

3.

Vibralert Alarm4. Heads-up display

The mask-mounted breathing regulator reduces the air pressure supplied by the pressure reducingregulator before the air enters the facepiece. With the facepiece properly sealed to the face, the

breathing regulator produces a pressure of approximately .036 to .054 psi above atmospheric

pressure inside the facepiece. When the user breathes out, the integral exhalation valve vents theexhaled air, while maintaining positive pressure inside the properly fitted facepiece.

Donning Switch

The donning switch is located top center on the mask-mounted breathing regulator. When actuatedby fully depressing the center of the switch, the donning switch prevents the flow of air should thecylinder valve be turned on prior to donning the facepiece, or if the facepiece is removed while the

unit is still in service. Once the facepiece is donned, with the air supply cylinder turned on and thedonning switched actuated, the wearer only has to inhale sharply to start the flow of air.

REGULATOR WITH HEADS UP DISPLAY

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Purge Valve

The red knob located on the left side of the mask-mounted breathing regulator is the purge valve, a

manual flow control used to bypass the internal mechanisms of the breathing regulator in the event

of a breathing regulator failure. The purge valve allows air to enter the facepiece through holes in

the spray bar, and may be used momentarily to de-fog the facepiece. During normal operation ofthe unit, the purge valve shall be in the OFF position, with the indicator on the knob pointing to the

twelve-oclock position.

A constant flow of at least 4.4 cubic feet per minute (125 liters per minute), can be obtained by

rotating the knob one half turn counterclockwise.

The purge valve shall be used only when necessary, as excessive use of the valve will result inrapid depletion of the air supply.

VibralertAlarm

(Audible and Tactile End of Service Life Indicator)

The Vibralert Alarm is an audible and tactile warning device that signals the user by noise andvibration that:

The air supply remaining in the cylinder is less than 25 percent of the rated capacity of thecylinder. (1,000 to 1,200 psi)

And / or

The primary reducing circuit has failed, and the secondary pressure reducing circuit is now

in operation.

And / or The primary reducing circuit has failed open, and air at more than 225psi has entered the

outlet manifold. In this case, the relief valve on the outlet manifold will open, and there will

be a loud sound of escaping air.

If the Vibralert Alarm activates when the SCBA is in use, the wearer must immediately notify

their Officer or partner, and must immediately leave the contaminated atmosphere.

PURGE VALVE

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Heads-up Display

The heads-up display provides a visual monitor of the air supply in the cylinder and valve assembly.It isnt as bright as the first generation and shouldnt disorient the user. The display is fitted to the

facepiece mounted regulator and appears across the bottom of the users field of view through the

facepiece. The heads-up display consists of four rectangular lights to represent the cylinder pressureat FULL, THREE-QUARTERS, ONE-HALF, and ONE-QUARTER. A fifth round red light, found

to the far right of the display, indicates LOW BATTERY.

When the Scott Air-Pak Fifty is turned on the heads-up display will initialize and illuminate all five

(5) lights for twenty (20) seconds. Operation of all five lights is to be verified each time the SCBAis placed in service. (Picture 1)

After initializing, the rectangular lights will show the level of the air supply in the cylinder asfollows:

a)

FULLcylinder is indicated by the two (2) green lights glowing near the center of thedisplay.(Picture 2)

b) THREE-QUARTERScylinder is indicated by a single green light glowing.(Picture 3)

c) ONE-HALFcylinder is indicated by the yellow light flashing slowly at once a second.

(Picture 4)d) ONE-QUARTERcylinder end of service time indicator is indicated by the red light at the

far left of the display rapidly flashing at ten (10) times a second.(Picture 5)

If this light is flashing when the SCBA is in use, the wearer must notify their Officer or partner, and

must immediately leave the contaminated atmosphere.

Picture 1 Picture 2 Picture 3

Picture 4 Picture 5 Unit OffHeads-up Display

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When the batteries require changing, the LOW BATTERY indicator at the far right of the display

will light for twenty (20) seconds and then flash slowly at once a second. When the LOWBATTERY light is flashing the batteries still have sufficient life to operate the heads-up display

longer than the one hour cylinder. However, the batteries must be changed immediately after ending

usage. The heads-up display requires two AA batteries for operation. The heads-up display

batteries are only to be replaced by the Air Unit technicians or the Mask Room personnel. Theregulators are not to be switched. If one is found to be defective the SCBA is to be placed out of

service and tagged with the SCBA Repair Request form. This will allow the SCBA to be tested and

tracked per OSHA standards.

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SCOTT Pak-Alert-SE Distress Alarm

The Pak-Alert-SE Distress Alarm is a Personal Alert Safety System (PASS) Device integrated into

the Scott Air-Pak Fifty. The device can be placed in monitoring mode either automatically by turningon the SCBA, or manually by pressing the manual alarm button on the control console, and then

resetting the alarm by pressing the reset button twice. In the monitoring mode, the Scott Pak-Alert

SE constantly monitors motion of the SCBA backframe. If the motion sensor does not sense motionof the SCBA for 20 seconds, the Pak-Alert SE will signal a pre-alarm condition. If there is still no

motion of the SCBA in the next 10 seconds, the full alarm will sound.

Once activated in monitoring mode, the Scott Pak-Alert SE will remain activated until:

The respirator air cylinder is turned off with the residual air pressure purged from the SCBA.

AND

The reset button on the control module has been pressed twice. With fresh alkaline batteries, the

Pak-Alert SE will stay in monitoring mode for about 1000 hours. With alkaline fresh batteries, thePak-Alert SE will last in full alarm for about eight hours.

Sensor Module

The sensor module is located at the bottom of the backframe, between the cylinder valve and thebackframe. The motion sensor is located in the sensor module, along with the audible alarm, and two

nine volt alkaline batteries. The sensor module is held in the backframe by a spring clip, and the

whole module may be removed from the backframe to allow access to the batteries through a coverplate. Batteries are only to be replaced by Air Unit technicians.

Control Console

The control console assembly is located on the right shoulder strap, and consists of the air supplygauge, manual alarm button, reset button, and console lens with red flashing signal light and green

flashing light. The control console is used to monitor air remaining in the air supply cylinder, and to

control the functions of the Pak-Alert SE Distress Alarm.

Keep the antennas of hand-held radios at least six (6) inches away from the control console and the

sensor module of the Pak-Alert SE and Distress alarm when transmitting. Failure to do so mayallow Radio Frequency Interference (RFI) to occur causing the unit to malfunction and result in a

non working distress alarm which may not sound if the user stops moving and lead to serious injuryof death.

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WARNING

USERS OF AN SCBA EQUIPPED WITH THE PAK-ALERT SE AND DISTRESS ALARM

MUST BE AWARE OF THE PROPER OPERATION OF THE DISTRESS ALARM.

FAILURE TO RECOGNIZE A MALFUNCTION AND TAKE PROPER CORRECTIVE

ACTION MAY RESULT IN SERIOUS INJURY OR DEATH TO THE USER. FAILURE TO

HAVE THE BATTERIES REPLACED AND/OR CONTINUING WITH MULTIPLE USESOF THE SCBA AFTER THE LOW BATTERY CONDITION HAS BEEN INDICATED

MAY RESULT IN FAILURE OF THE PAK-ALERT SE AND DISTRESS ALARM DURING

USE AND MAY RESULT IN POSSIBLE INJURY OF DEATH OF THE USER.

CONTROL CONSOLE WITH

THE EBSS CONNECTION

SENSOR MODULE ON THE

HARNESS B ACKFRAME

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Fa c ep i e c e As s e mb l y

The Scott Air-Pak F i f t y is certified for use with the Scott-O-Vista and AV 2000 & 3000 facepieces.Facepieces are issued to each member of the Department in one of three sizes; small, large, andextra large. Differences between the sizes are determined by the chevron seal, as the polycarbonate

lens is the same for all facepiece sizes.

Facepieces are fitted with a removable nosecup that reduces formation of ice and fogging of the

facepiece when the SCBA is used at temperatures below 32 F.

The Scott AV-2000 & 3000 facepieces are composed of a hard-coated polycarbonate lens bonded to

a natural rubber blend seal, two speaking diaphragms the AV-3000 have larger diaphragms), anosecup, and a four point yellow Kevlar head harness. The speaking diaphragms of the AV-2000 &

3000 allow clearer voice communications when wearing SCBA. To transmit on a portable radio

when wearing the AV-2000 & 3000 facepieces, place the radio microphone about away fromand in line with a speaking diaphragm, and speak normally.

It is the responsibility of the member to ensure that the facepiece is maintained in proper conditioDamaged facepieces, or those with loose or missing hardware, must not be used, and must be tagge

with the SCBA Repair Request Form and taken to the Mask Room for repair or replacement. Th

screws that attach the head harness to the lens must be installed to allow free movement of the harnearound the fastener. Otherwise, the movement of the harness will loosen the screw. Screws are held

place by a single-use thread locking compound, and should not be adjusted by anyone other than Ma

Room or Air Unit technicians.

AV-2000 & 3000 MOUNTED TO THE BREATHING REGULATOR

NOSE CUPS FOR THE AV-3000 & 2000

FACEPIECES

SPEAKING DIAPHRAMS FOR THE

AV-3000 AND 2000 FACEPIECES

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CHAPTER 3

INSPECTION

AND

TESTING

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Pre-Use Inspection and Testing of the Scott Air-Pak Fifty SCBAThe following SCBA inspections and testing procedures shall be performed upon assumption of dutyand after each use. This procedure is to be followed exactly. If any component of the SCBA fails a

testing procedure, if damage or wear is found, or if hoses or cables are loose, remove the SCBA

from service, tag it with an SCBA Repair Request Form (Figure 1) explaining of the specific defect,

and notify the Mask Room. Replace the defective SCBA with a spare unit, and perform the pre-useinspection on the new SCBA before placing it on the apparatus. If a replacement SCBA is not

available for immediate replacement, the Company shall be placed out of service until areplacement can be provided.

1. Check the cylinder pressure gauge for a "FULL" indication.

a. Cylinders shall be changed when the pressure gauge indicator falls below 4000psi.

2. Inspect the air supply cylinder.

a. Using Inspection of Composite Air Cylinders in Chapter 6 as a guide.1. Inspect the cylinder for evidence of exposure to high heat or flame.

2.

Inspect the cylinder for dents, scrapes, cuts, or other physical damage.b. Damaged cylinders shall be removed from service, prior to reuse or recharging.

1. The cylinder should be emptied of compressed air, tagged with the specific

problem, and reported and returned to the Mask Room.

3. Check the high-pressure hose connection at the cylinder valve assembly for security.

4. Check the low-pressure hose from the top of the outlet manifold to the breathing regulator

for security.

5. Check the high-pressure line, with the Quick disconnect, to the Control Console for security.

6. Check the EBSS (buddy breathing) hose and the cover for the connection.

7. Check the RIC UAC (Rapid Intervention Crew/Company Universal Air Connection).

8. Visually inspect the assemblies of the Pak-Alert SE for wear and damage.

a. Check the wire harnesses to the Control Console for security.

b. Check the wire harnesses to the Sensor Module for security.

9. Secure the facepiece to the breathing regulator.

a. Check to make sure that the facepiece may be properly mated to the breathing

regulator1. Inspect the silver sealing gasket for damage, tears or dirt.

I. The silver Teflon sealing gasket does not need lubrication.2. Check the facepiece for cracks and burrs that could damage the sealing

gasket.b. Hold the regulator in the left hand with the purge valve in the 12 o'clock position.

1. Sealing gasket will be toward the user.

c. Hold the facepiece firmly at the top, with the nosecup toward the user.d. Align the two flats on the outlet of the regulator with the flats on the facepiece.

1. The top of the facepiece will be in line with the purge valve.


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e. Insert the outlet of the regulator into the facepiece.

f. Rotate the facepiece clockwise, away from the user.1. The latch on the breathing regulator will snap into place.

g. The normal storage position for the facepiece is with the head harness pulled over

the viewing portion of the facepiece, with the neck strap adjustment tabs fully out

10.Inspect the harness and backframe assembly.

a. Adjust the shoulder straps out fully.

b. Adjust the waist belt straps so they have a two to four inch tab extension at the endof each strap.

11.Check the functions of the Pak-Alert SE manual alarma. Check the batteries by pressing and holding the reset button, located on the side of

the Control Console.

1. A green light will flash on the control console if the batteries are OK.

2. A red light will flash if the battery power is low and the batteries must be

replaced.3. The absence of any light indicates that the Pak-Alert SE is defective, or that

the batteries are either completely discharged or that they have not beeninstalled.

I. Only Mask Room personnel and Air Unit technicians are to replace

the batteries.II. Place the SCBA out of service, tag with the SCBA Repair Request

Form, and return the SCBA to the Mask Room for repair.

b. Press the manual alarm button, located on the front of the Control Console.1. The alarm should begin sounding a loud, three part alarm tone, accompanied

by the red signal light on the Control Console flashing on and off.

c.

Reset the alarm by pressing the reset button twice.1. Fully depress the button, release, and press again.

I. The Pak-Alert SE will sound three quick chirps, and the red flashingsignal light will turn to green.

d. Allow the Air-Pak Fifty to remain motionless for twenty seconds.

1. The unit will enter the pre-alert mode, indicated by red lights alternating once

a second.2. The unit will sound a rising and falling tone that will increase in volume

during the pre-alarm cycle.

e. Shake the unit to reset the Pak-Alert SE.1. The alarm should stop chirping and the red flashing light should turn to

green.2.

This checks the function of the motion sensor.3. The motion sensor for the Pak-Alert SE is in the Sensor Module, not the

control console.

4. Shaking the control console will not reset the Pak-Alert SE.

f. Allow the Air-Pak Fifty to remain motionless for twenty seconds.1. The unit will enter the pre-alert mode, indicated by red lights alternating once

a second.

2. The unit will sound a rising and falling tone that will increase in volumeduring the pre-alarm cycle.


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g. Reset the pre-alert alarm by pressing the reset button.

1. The Pak-Alert SE will sound three quick chirps, and the red flashing lightwill turn to green.

h. Allow the Air-Pak Fifty to remain motionless for thirty seconds.

1. The unit should enter the pre-alert mode, and after 10 seconds enter the alarm

mode.2. The alarm should begin sounding a loud, three part alarm tone, accompanied

by the red signal light flashing on and off.

i. Reset the alarm by pressing the reset button twice.1. Fully depress the button, release and press again.

2. The Pak-Alert SE will sound three quick chirps, and the alarm will silence.

3. The red flashing light will turn to green4. The unit will remain in monitoring mode, with the green light flashing once a

second.

j. Turn the Pak-Alert SE off.

1. Press the reset button twice.

2.

The green light on the control console will go out, and a two beepdeactivation tone will sound.

3. The Pak-Alert SE is now turned off.

13. Check the breathing regulator function of the Scott Air-Pak Fifty.

a. Rotate the purge valve clockwise the closed position, with the pointer up.b. Fully depress the center of the donning switch on top of the breathing regulator.

c. Slowly open the cylinder valve fully.

1. Listen for the Vibralert Alarm to start, and then stop actuating.2. Check the heads-up display that all five lights light for 20 seconds after

which the two green lights, indicating full, should be lit

3.

The Pak-Alert SE will sound three quick chirps, and the green light on thecontrol console will begin flashing about once per second.

4. There should be no airflow from the regulator at this time.5. There should be no airflow from any part of the SCBA.

d. Hold the facepiece to the face and obtain a good seal.

e. Inhale sharply to start the airflow.

1. Air will flow into the facepiece on inhalation, and stop during exhalation.f. Remove the facepiece from the face.

1. Air should flow freely from the facepiece.

g. Fully depress the donning switch on the top of the breathing regulator.1. Airflow should stop.

h.

Rotate the purge valve 180 degrees counterclockwise.1.

Air should flow freely from the spray bar.i. Rotate the purge valve 180 degrees clockwise to the fully closed position.

1. No air should flow.

14. Check the automatic functions of the Pak-Alert SE PASS Device.a. Allow the Air-Pak Fifty to remain motionless for twenty seconds.

1. The unit will enter the pre-alert mode, indicated by red lights alternating once

a second.2. The unit will sound a rising and falling tone that will increase in volume


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during the pre-alarm cycle.

b. Shake the unit to reset the Pak-Alert SE.1. The alarm should stop chirping and the red flashing light should turn to

green.

2. This checks the function of the motion sensor.

c. Allow the Air-Pak Fifty to remain motionless for twenty seconds.1. The unit will enter the pre-alert mode, indicated by red lights alternating once

per second.

2. The unit will sound a rising and falling tone that will increase in volumeduring the pre-alarm cycle.

d. Reset the pre-alert alarm by pressing the reset button.

1. The Pak-Alert SE will sound three quick chirps, and the red flashing lightwill turn to green.

e. Allow the Air-Pak Fifty to remain motionless for thirty seconds.

1. The unit should enter the pre-alert mode, and then enter the alarm mode,

2. The alarm should begin sounding a loud, three part alarm tone, accompanied

by the red signal light flashing on and off.f. Reset the alarm by pressing the reset button twice.

1. The Pak-Alert SE will sound three quick chirps, and the alarm will silence.2. The red flashing light will turn to green

3. The unit will remain in automatic mode, with the green light flashing once

per second.g. This checks the automatic function of the Pak-Alert SE.

15. Check the transfer valve, Vibralerta. Close the cylinder valve.

1. Push in the cylinder valve knob, and rotate clockwise to close the valve.

b.

Open the purge valve slightly to vent residual air pressure.1. Rotate the purge valve counterclockwise, and observe the pressure gauge on

the control console.I. When the air pressure drops to approximately 1,000psi (1/4 as

indicated on the gauge), listen for the Vibralert to function and the red

light on the heads-up display should be flashing rapidly at 10 times a

second.c. When air is exhausted from the system, return the purge valve to the closed position.

16. Turn off the Pak-Alert SE by pressing the reset button on the control console twice.a. If the Pak-Alert SE starts to chirp about once per second, and the unit fails to sound

the two beep deactivation tone, all air pressure has not been bled from the system,and the Pak-Alert SE will remain active.1. The Pak-Alert SE will remain in monitoring mode as long as air pressure is in

any part of the system except the air supply cylinder.

b. Bleed off the residual air, and turn off the Pak-Alert SE by pressing the reset button

twice.c. The green flashing light will go out, and a two-beep deactivation tone will be heard

from the sensor module.

d. The Pak-Alert SE is now turned off.


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Pre use Inspection and Testing of the Scott RIT-PAK II Portable Air Supply

1. Visually inspect the Scott RIT-PAK II portable air supply for worn or damaged components.

2. Check to make sure that the cylinder retention strap is not abraded around the area of the carrying

handle bracket.

3. Check to ensure cylinder retention assembly is secured.

4. Check all hoses for wear or damage (cracks, cuts, abrasions, or other signs of damage).

5. Check all couplings for damage and cleanliness.

6. Inspect the cylinder coupling on the combination Low/High pressure accessory to be certain thenipple seal is present and undamaged.

7. Check to ensure that the double male low pressure adapter is present and attached to hose withchain.

8. Check that the rubber cover on the high pressure adapter.

9. Check the latest cylinder hydrostatic test date to ensure that it is current (Within 5 years) and that

the cylinder pressure gauge for FULL indication. Cylinders shall be changed when the pressure

gauge indicator falls below 4000psi

10. Visually inspect cylinder and valve assembly for physical damage such as dents or gouges in

metal or in composite wrapping. Cylinders which show physical damage of exposure to high heat or

flame (such as paint turned brown, decals charred of missing, pressure gauge lens melted ofelastomeric bumper distorted), or cylinders which show evidence of exposure to chemicals shall be:

a. Placed out of service

b. Emptied of airc. Tagged with the SCBA Repair Request Form

d. Notify the Air Unit technician(s)

After which the RIT-PAK is ready for use.

***WARNING ***WARNING***WARNING***WARNING***WARNING***

The SCBA pre-use inspection and testing procedure must be performed upon assumption of duty andafter each use. This procedure is to be followed exactly. If any component of the SCBA fails a testing

procedure, if damage or wear is found, or if hoses or cables are loose, remove the SCBA fromservice, tag it with an SCBA Repair Request Form, and notify the Mask Room or the Air Unit

technician. Replace the defective SCBA with a spare unit, and perform the pre-use inspection on the

new SCBA before placing it on the apparatus. If a replacement SCBA is not available forimmediate replacement, the Company shall be placed out of service until a replacement can be

obtained.

***WARNING ***WARNING***WARNING***WARNING***WARNING***


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SCBA REPAIR REQUEST FORM

To be submitted if any component of the SCBA fails a testing procedure, if damage or wear is

found, or if hoses or cables are loose. The following information is to be entered on the tag toensure prompt and appropriate repairs.

1. Enter the date on which the defect or damage is being reported. (Example: July 01, 2016)

2. Enter the company to which the Unit is assigned (Example T-15-4)

3. Enter the harness identification. It is located the high pressure reducer and the face pieceregulator. If both are present the numbers should match. The first two numbers are

unimportant. The last three numbers are the identification numbers.

4. The loaner identification number will be entered on the form be either the Air unit

technician or the Mask Room technician.

5. Enter the defect, damage, or problem on the form and be as accurate and concise as possible.

6. The OIC (Officer in Charge of the Company) reporting the SCBA will print his/her name

and enter his/her platoon. (Example: Lt. Robert A. Washington E-3-1)

7. Lastly the OIC will sign the tag before submitting the SCBA for pick for repair.

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CHAPTER 4

DONNING

THE SCBA


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Donning the Unit

Overhead Method

Place the SCBA on a flat surface with the unit lying on the air supply cylinder, with the cylinder valve

away from the user.

1. Separate the shoulder straps to expose the backframe.

2. Grasp the sides of the backframe with hands inside the shoulder straps.

3. Lift and hold the unit at arms length, with the cylinder valve pointing up.

4. Raise the unit up and over the head, ensuring that the shoulder straps fall outside of, and under the

elbows.

5. Continue placing the unit up, over, and behind the head onto the back while leaning slightly

forward.a.

Allow the unit to slide down the back until stopped by the shoulder straps.

b. Slide both hands down the straps to prevent twisting, down to the tab extensions.

6. Grasp the left and right tab extensions on the shoulder straps, and pull down slightly.

7. Reach back with both hands and position the waist belt at hip area.a. Slide both hands forward; locate male and female portions of the waist belt straps.

b. Engage the buckle making sure that the shoulder straps arent under the waist straps.

8. Adjust waist belt by pulling forward on straps.

9. Stand erect and re-adjust shoulder straps if necessary. NOTE: The weight of the SCBA is designbe carried on the hips, not on the shoulders. Fully adjusting the shoulder straps prior to adjusting

waist straps will result in the weight of the unit resting on the shoulders instead of on the h

causing increased fatigue. The waist belt must always be used when wearing SCBA.


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Donning the Unit

Coat Method

With the SCBA secured in a walkway bracket, and the cylinder valve pointing down, don the SCBA using

the coat method.

1. With the left hand, palms upward, grasp the left shoulder strap, (as the unit is worn) near itsattachment point at the top of the backframe.

2. With the right hand, palm downward, grasp the left shoulder strap at the tab extension buckle.

3. In one continuous motion, pull the unit from the bracket, swing it to the left, lean forward, and

place the unit on the back.

4. Continue leaning forward, place the right arm through the shoulder strap.

5.

Grasp the left and right tab extensions on the shoulder straps and pull down slightly.

6. Reach back with both hands, position waist belt at the hip area.

a. Slide both hands forward, locate male and female portions of the waist belt assembly

adjustment strap, and engage the buckle making sure the shoulder straps arent underthe waist straps.

b. Adjust the belt by pulling forward on the waist straps.

7. Stand upright and readjust shoulder straps if necessary.

NOTE: The weight of the SCBA is designed to be carried on the hips, not on the shoulders. Fully adju

the shoulder straps prior to adjusting the waist straps will result in the weight of the unit resting on

shoulders instead of on the hips, causing increased fatigue. The waist belt must always be used when weaSCBA.


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SCOTT SCBA BACKFRAME ISSUES

Over the past several months we have received numerous SCBA in the shop for broken

bent back frame harnesses. Up until this time, we have not been able to figure out what w

causing this problem.

DAMAGED BACKFRAME


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THIS IS WHAT WE BELIEVE IS HAPPENING.

When the SCBA are being stowed, the lower portion is being inserted into the bracket on

the apparatus first, causing the foot of the bracket to be jammed between the cylinder

bumper and the backframe. This is resulting in the foot prying on the bottom edge of the

backframe when the top of the SCBA is pushed into the bracket on the apparatus. When

this is repeated numerous times, the welds are breaking, causing the damage shown in th

first picture.


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FOOT OF SCBA BRACKET BENT AS A RESULT.


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MORE EXTENSIVE DAMAGE ONCE WELDS ARE BROKEN


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INITIAL DAMAGE PRIOR TO THE WELDS BREAKING


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INITIAL DAMAGE PRIOR TO THE WELDS BREAKING


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CORRECT PROCEDURE FOR STOWING SCBA INTO BRACKET O

THE APPARATUS

The cylinder should be touching all four points of the SCBA bracket spring clips and the

pushed straight in.


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CHAPTER 5

NORMAL

OPERATIONS

EMERGENCY

OPERATIONS

REDUCED PROFILE

MANEUVER

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Normal Operation

Once the unit has been properly inspected, the facepiece mated to the breathing regulator, and

the unit placed on the user's back, the unit may be placed in service.

Place the unit in the "stand-by" mode using the following procedure.

1. Check that the purge valve is in the closed position.

2. Fully depress the donning switch

3. Slowly open the cylinder valve one to two turns.a. The user should both feel and hear the Vibralert Alarm start and stop.

b. The Pak-Alert SE will sound three quick chirps.

c. The heads-up display should be lit.

d. The green light on the sensor module will flash about once per second.

e.

There should be NO air flow from the regulator.

4. The unit is now in the "stand-by" mode, ready for use, but not placed in service.

NOTE: If the Vibralert Alarm fails to actuate, or fails to stop actuating after a moment or if the Pak-

Alert SE does not turn on: DO NOTUSE THE UNIT.Remove the unit from service, fill out the

SCBA Repair Request Form with the defect or malfunction and notify the Air Unit technician. If amalfunction occurs on the fireground, tie the harness straps into a knot to prevent re-use of the SCBA

by personnel unaware of the malfunction.

With the unit in the "stand-by" mode, place it in service in the following manner:

5. Place the chin in the facepiece chin cup, and press the facepiece to the face.

6. Grasp the head harness, raise it over the viewing lens of the facepiece and pull it downover the back of the head.

a. Tighten the neck straps by pulling the adjustment tabs toward the rear.

b. With one or both hands, stroke the head harness down the back of the head.

c. Re-tighten the neck straps if necessary.

7. Once a proper seal has been obtained, inhale sharply to start the flow of air into the

facepiece.a. Air should flow into the facepiece with each inhalation.

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8. Close the cylinder valve by pushing in on the valve, and rotating the valve clockwise.

a. Take a few breaths until air flow stops.b. The Vibralert should activate, and then stop.

i. This tests the Vibralert

c. Inhale slowly and hold breath.

i. No leakage should be detected, and the facepiece should be drawn to theface.

(1) NOTE:If a tight facepiece seal is not obtained, grasp the top head

harness attachment tabs located at the temple area of the head and

move them to the front or rear to obtain a proper seal.

d. If a proper seal cannot be obtained by moving the head harness straps:

i. Depress the donning switch.ii. Remove the facepiece, and repeat the facepiece donning procedure.

e. If a proper seal is present, and the Pak-Alert SE PASS Device and Vibralert alarm

function properly, open the cylinder valve fully to allow air back into the

facepiece.

9. Members entering into toxic, contaminated or unknown atmospheres must operateunder the Department's personnel accountability guidelines, Incident Command

System, and S.O.P.s,

10. If you or your partner experience mechanical malfunction of an SCBA:

THE USER MUST IMMEDIATELY LEAVE THE CONTAMINATED ATMOSPHERE

WITH THEIR PARTNER

AND

THE USER MUST IMMEDIATELY NOTIFY THEIR OFFICER

11. If an SCBA malfunction occurs on the fireground, tie the harness straps into a knot to

prevent re-use by personnel unaware of the malfunction. The SCBA shall be placed out of

service, fill out the SCBA Repair Request Form with the defect or malfunction and contact theAir Unit technician.

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REMOVING THE SCBA FROM SERVICE

When the unit is no longer required and the user is in a safe, well ventilated, non-contaminatedarea, remove the unit from service.

1. Depress the donning switch, and loosen the neck straps.

2. Remove the facepiece.

3. Push in the cylinder valve knob, and rotate clockwise to close the valve.

4. Open the purge valve by rotating it counterclockwise to vent residual air pressure in thesystem.

5. Close the purge valve.

6. Turn off the Pak-Alert SE by pressing the reset button twice.

a. The green flashing light will go out, and a two-beep deactivation tone will be

heard from the sensor module.b. If the Pak-Alert SE starts to chirp about once per second, and the unit fails to sound

the two beep deactivation tone, all air pressure has not been bled from the system,and the Pak-Alert SE will not turn off.

i. Bleed off the residual air pressure by opening the purge valve.

ii. The Pak-Alert SE will check for zero air pressure for 15 seconds, and will

turn off if it senses that all pressure has been bled. If pressure has not beenbled from the system during the 15 second test period, the Pak-Alert SE will

fail-safe, and will go back into monitoring mode.

7. Unbuckle the waist belt.

8. Loosen the right shoulder strap, remove right arm and grasp left shoulder strap at

adjustment buckle with right hand.

9. With the left hand, grasp the left shoulder strap at the shoulder area, loosen the shoulder strapand swing unit from back.

a. To reduce wear on the hoses and wire assemblies, use the shoulder and waist straps

to lift and carry the SCBA.

10. Do not allow the SCBA to fall to the ground when it is being removed.

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Emergency Operation

WARNING**WARNING**WARNING**WARNING**WARNING

The following procedures are for emergency use only. If the use of emergency procedures is required,leave the contaminated area at once. Use of these procedures will increase the consumption of air

supply, and may cause the intensity of the Vibralert to be diminished or to stop completely. The usermust immediately leave the contaminated atmosphere with their partner, and must immediately notifytheir Officer.

The Scott Air-Pak Fifty is automatic in function, and requires only the opening of the cylinder valve

to place the SCBA and PASS device into operation. In the event of malfunctions which would cut off

the air supply in the system, (failed closed malfunctions), both automatic and manual means have

been provided to bypass the malfunction. In the event of malfunctions that would allow air to flowfreely into the facepiece (failed open malfunctions); procedures have been developed to allow the

user to exit the contaminated atmosphere without having to remove the facepiece.

WARNING**WARNING**WARNING***WARNING**WARNING

FAILURE OF THE PRIMARY REDUCING CIRCUIT

PRIMARY REDUCING CIRCUIT FAILED CLOSED

The pressure reducing regulator includes a back-up pressure reducing system that automaticallysupplies air should the primary reducing circuit fail in the closed position. When the back-up system

is in operation, the Vibralert Alarm will sound.

WHEN THE VIBRALERT ALARM SOUNDS


WITH THEIR PARTNER

AND


PRIMARY REDUCING CIRCUIT FAILED OPEN

If the primary reducing circuit fails in the open position, and high pressure air enters the outletmanifold, the over pressure relief valve will open, limiting air pressure in the low pressure hose to

225 psi. Air will continue to flow to the breathing regulator, the Vibralert Alarm will operate, andthere will be a loud sound of escaping air. The user must partially close the cylinder valve to reduce

the amount of air loss, by pushing in on the cylinder valve, and rotating the valve clockwise. The user

must monitor the amount of air supplied to the facepiece, and regulate the air supplied by opening orclosing the cylinder valve.

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WHEN THE VIBRALERT ALARM SOUNDS


WITH THEIR PARTNER

AND


FAILURE OF THE BREATHING REGULATOR

BREATHING REGULATOR FAILED CLOSED

In the event the air supply to the facepiece is cut off during use, the user shall fully open the

purge valve by rotating it 180 degrees, one-half turn counterclockwise. Air flow can be adjustedto the needs of the user by partially closing the purge valve.


WITH THEIR PARTNER

AND


BREATHING REGULATOR FAILED OPEN

Should air flow freely into the facepiece, first check that the purge valve has not been

accidentally opened by rotating the valve clockwise to the up position. If this does not stop the

flow of air, open the purge valve by rotating it 180 degrees, one-half turn counterclockwise. The

user must then partially close the cylinder valve by pushing in on the valve, and rotating itclockwise, regulating the flow of air to satisfy the user's needs. The user must monitor the

amount of air supplied to the facepiece, and regulate the air supplied by opening or closing the

cylinder valve.


WITH THEIR PARTNER

AND


WARNING** W ARNING* * *WARNING* * * WARNING**WARNING

WHEN PARTIALLY CLOSING THE CYLINDER VALVE AS PART OF THESE

EMERGENCY PROCEDURES, THE USER MUST EXERCISE CAUTION THAT

THE CYLINDER VALVE IS NOT INADVERTENTLY FULLY CLOSED.

IF IT IS NECESSARY TO USE ANY OF THE EMERGENCY PROCEDURES:THE USER MUST IMMEDIATELY LEAVE THE CONTAMINATED ATMOSPHERE WITH

THEIR PARTNER AND THE USER MUST IMMEDIATELY NOTIFY THEIR OFFICER

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If it is necessary to use any of these emergency procedures to leave a contaminated

atmosphere, the SCBA shall be placed out of service, tagged using the SCBA Repair Request

Form as to the defect or malfunction, and shall be returned to the Mask Room for repair. If a

malfunction occurs on the fireground, tie the harness straps into a knot to prevent re-use by

personnel unaware of the malfunction.

Using the EBSS (buddy breathing) connection

1. The member assisting with air supply shall remove the cover on the EBSS (buddy

breathing) hose, locate on the right shoulder strap adjacent to the control console. The

member shall also locate the snap on the strap and unsnap. This will allow the maximum

reach of the hose which is approximately 30 inches.

2. The member in need of air shall locate the quick disconnect just below the users mask, slide

the locking sleeve back and disconnect.

NOTE: The respirator user may be exposed to the atmosphere while

the quick disconnect is open.

3. The member assisting with the air supply will connect the male end of the quick disconnect

to the female end of the EBSS (buddy breathing) hose.

4. Members shall notify command of the problem and exit the area

immediately.

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Using the High Pressure air supply using the RIT-PAK

Notify incident commander of a mayday.

Push the orange Emergency Activation button located on the top of the portable radi

Push the push-to-talk button, and transmit the phrase Members locate downed firefight

MAYDAY, MAYDAY, MAYDAYand wait several seconds for operations toacknowledge.

Continue to transmit the phrase MAYDAY, MAYDAY, MAYDAY until

acknowledged by operations.

Provide operations with location, type of emergency, and the resources needed.

Fully open the cylinder valve on the RIT-PAK II

Note: Both cylinder valves must be fully opened. Cylinder valves that are not fully opened

will slow down the exchange of air from the RIT-PAK II to the downed firefighters cylinder.

Identify the RIC UAC coupling on the downed firefighters SCBA.

Remove the dust cap from the RIC UAC coupling.

Connect the RIC UAC airline assembly to the RIC UAC coupling on the downed

firefighter, push on the connection until it clicks into place. Check the connectionby tugging on the coupling.

Air will immediately begin to flow from the RIT-PAK II portable air supply cylinderto the downed firefighters SCBA.

Note: The RIC UAC manifold is fitted with a relief valve. If the rated pressure is exceeded,

air will begin to escape. Close RIT-PAK II cylinder valve and check downed firefighters

SCBA.

Air in the two cylinders will equalize, giving a reading of less than full in the downed

firefighters SCBA.

The air will stop flowing when the Downed firefighters SCBA and the RIT-PAK II air

supply reach the same pressure.

Close the cylinder valve on the RIT-PAK II.

A check valve in the RIC UAC coupling will prevent air from flowing out of the SCBA

cylinder.

Disconnect the RIC UAC airline assembly (located on the RIT-PAK II) from the RIC UAC

coupling (located on the downed firefighter).

Replace the dust caps.

Remove the downed firefighter.

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Using the Low Pressure air supply: Using the EBSS (buddy breathing)

hose on the SCBA

Members locate downed firefighter.


Push the orange Emergency Activation button located on the top of the portable

radio.

Push the push-to-talk button, and transmit the phrase MAYDAY, MAYDAY,MAYDAYand wait several seconds for operations to acknowledge.

Continue to transmit the phrase MAYDAY, MAYDAY, MAYDAY untilacknowledged by operations.


Verify that the cylinder valve is fully closed

If the double male connection is made when the RIT-PAK is fully opened, air will

begin escaping at 100 psi.

Verify that the male/male adapter is connected into the quick disconnect on the ManifoldAssembly.

Attach the other end of the male/male adapter quick disconnect to the EBSS hose on thedowned firefighters Air-Pak.

Match up the two ends and push together until you hear a click. Pull on the twoends to ensure that the connection is secure.

Fully open the air supply cylinder valve of the RIT-PAK II.

Ensure that proper airflow is being made by the downed firefighter.

Secure the RIT-PAK II, and remove the downed firefighter.

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Page 10

UTILIZING THE QUICK CONNECT COUPLING ON A

FACEPIECCE MOUNTED REGULATOR TO A RIT-PAK II

Safety Note: The end-of-service alarm on the respirator may not operate normally when

being supplied by the RIT-PAK II portable air supply.

A member of the RIT team must monitor the air supply of the downed

firefighter until the rescue is complete.

Members locate downed firefighter.


Push the orange Emergency Activation button located on the top of the portable radio.

Push the push-to-talk button, and transmit the phrase MAYDAY, MAYDAY, MAYDAY

and wait several seconds for operations to acknowledge.

Continue to transmit the phrase MAYDAY, MAYDAY, MAYDAY until acknowledgedby operations.


Fully open cylinder valve on the RIT-PAK II

1. Disconnect the air supply hose (located on the left shoulder strap) from the downedfirefighter.

With one hand push in the hose with the male end towards the coupling, and with the

other hand pull down on the coupling with the female end.

The downed firefighter may be exposed to the atmosphere while the quick

disconnect is open.

2. Connect the air supply hose of the Scott RIT PAK II portable air supply to the respirator

being used by the downed firefighter.

Match up the two ends and push together until you hear a click. Pull on the two

ends to ensure that the connection is secure.3. Ensure that proper airflow is being made by the downed firefighter.

4. Secure the RIT-PAK II, and remove the downed firefighter.

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Page 11

The Reduced Profile Maneuver

The Reduced Profile Maneuver is a simple technique that will allow firefighters to pass through

small openings or around obstacles. This technique will allow firefighters to slide the entire SCBAassembly in line with the wearer's body, reducing the overall profile of the firefighter.

This simple technique could allow firefighters to continue a search when blocked by an obstacle, or

save their life if caught in a narrow or tight space. As with all SCBA procedures, firefighters should

practice this technique in company drills so that they become proficient at it. Then practice in

limited or zero visibility situations, and while in a kneeling position.

STEPS OF OPERATION:

*THE FACEPIECE SHALL REMAIN ON DURING THIS

PROCEDURE! Refer to the Figures on the following pages.

1. Loosen the waist strap.

2. Fully loosen the right shoulder strap. Figure 1

3. Partially loosen the left shoulder strap. Figure 2

4. Remove the right shoulder strap. Figure 3

5.

Grasp the waist strap with right hand.

6. Grasp along the neck assembly of the SCBA cylinder with left hand.

7. Slide the entire SCBA to the left, far enough to pass through the opening. Figure 4

8. Step through the opening. Figures 5 through 8

9. Slide the entire SCBA assembly back to its normal position.

10. Slide right hand back through the shoulder strap, and return the strap to its normal position.

11. Adjust the shoulder straps.

12. Tighten the waist strap.

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Page 12

Figure 1 Figure 2

Figure 3 Figure 4

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Page 13

Figure 5 Figure 6

Figure 6 Figure 7

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Page 14

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CHAPTER 6

RETURNING

THE SCBA

TO SERVICE

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Page 2

After-use Inspection, Cleaning, and Disinfection

To maintain a condition of immediate readiness, the unit must be inspected after each use. Each

member is responsible for ensuring that the entire SCBA has been inspected, cleaned and

disinfected after each use.

Cleaning and Disinfecting the Facepiece Assembly

Clean and disinfect the facepiece in the following manner:

1. Remove the facepiece from the mask-mounted breathing regulator.

2. Carefully wash the facepiece assembly with Scott Multi-Wash Mini.

a. The nose cup is designed to be an integral part of the facepiece and does not need tobe disassembled for cleaning and disinfecting.

b.

Use cool or warm water to clean the unit. (110 degrees F maximum)1. NEVERwash the facepiece with hot water.

c. Thoroughly rinse in clean water.

3. Disinfect the facepiece by spraying three full pumps of Scott Multi-Wash Mini on the

regulator side of the facepiece, and three full pumps on the face side of the facepiece.

a. Wet the entire facepiece, including all rubber and plastic areas.

b. Allow 10 minutes of contact time prior to rinsing.c. Rinse with potable (drinking) water using a spray bottle or running water.

4. Shake excess water off of the facepiece.

a.

Dry with a clean, lint free cloth.b. Allow facepiece to air dry.

c. Do not blow dry the facepiece with shop air or any air containing lubricants ormoisture

d. Never use paper products on the facepiece lens.1. All paper products contain abrasives, which will scratch the polycarbonate lens.

*****CAUTION**CAUTION**CAUTION**CAUTION**CAUTION*****

When washing, and or rinsing the facepiece, neveruse water warmer than 110 degrees Fahrenheit(lukewarm to the touch). Water warmer than 110 degrees Fahrenheit will loosen the bonding agentused to secure the facepiece seal to the polycarbonate lens.

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Page 3

Cleaning and Disinfecting the Breathing Regulator

1. Remove the facepiece from the regulator.

2. Remove any obvious dirt from the external surfaces of the regulator using Scott Multi-Mini

Wash on a sponge or soft, lint free cloth.

3. Inspect the inside of the regulator assembly through the regulator opening.a. If there is dirt or debris inside the regulator, remove the SCBA from service, tag the unit,

and notify the Mask Room.

4. If the inside of the regulator is clean:

a. Depress the donning switch.

b. Close the purge valve.c. Spray a minimum of six full pumps of Scott Multi-Mini Wash into the regulator

opening.

1.

Make sure to wet the immediate area around the opening.2. Swirl to completely cover internal components.

d. Turn the regulator opening down and shake excess liquid out.

e. Allow 10 minutes of contact time prior to rinsing.

f. Rinse the regulator with potable (drinking) water using a spray bottle or running

water.

5. DO NOT SUBMERGE THE REGULATOR.

6. Shake excess water out of the regulator, and allow to completely air dry before use.a. Allow the regulator to air dry.

b.

Do not blow dry the regulator.

Members should exercise extreme caution that no unauthorized cleaning agents or foreign materialsare allowed to enter the breathing regulator during the cleaning process.

*******************LOW TEMPERATURE WARNING****************

If after carrying out the above cleaning and disinfecting procedures, the SCBA is exposed to

temperatures at or below freezing, malfunctions may occur. The airflow of the regulator may bepartially or fully blocked by the formation of ice inside the breathing regulator. Care must be taken to

ensure that all parts of the SCBA, especially the facepiece and breathing regulator are completely drybefore the SCBA is placed back on the apparatus because corrosion or other damage may occur

which could cause a malfunction. Such a malfunction may result in serious injury or death.

******************************************************************************

The remainder of the unit, air supply cylinder, backframe and harness assembly, shoulder and waiststraps, and pressure reducing regulator should be damp-sponged to remove accumulated soot and

debris.

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Page 4

Inspection of Composite Air Supply Cylinders

The Scott Air-Pak Fifty is supplied with a composite air supply cylinder made from an aluminum shellover-wrapped with carbon fiber. These fiber-reinforced cylinders represent an optimum lightweight

approach to cylinder design. The over wrapping of carbon fiber, reinforced with plastic resin is

integral to the design safety of the composite cylinder, as the inner aluminum shell alone cannotcontain the 4,500psi at which the system operates. To ensure the safety of the user and integrity of the

unit, a daily check of the over-wrap is performed during the pre-use inspection of the SCBA.

U.S. Department of Transportation (D.O.T.) regulations require that a hydrostatic test is performedon composite cylinders every five years by a certified testing facility.

Using the "Compressed Gas Association Guidelines" (CGA-C-6.2-2005), damage to composite

cylinders is assessed on three levels.

Level 1. Cuts or scratches involving the outer surfaces only.

Level 2. Cuts that have penetrated through outer layers of plastic and have cut the fiber over-wrap threads.

Level 3. Cuts greater than Level 2 or cuts that exposed bare metal.

Cylinders with damage greater than CGA Level 1 shall be placed out of service, emptied of

compressed air, tagged with the SCBA Repair Request Form as to the defect, and returned to theMask Room.

After-use Inspection of the Air Supply Cylinder

When replacing the air supply cylinder after an SCBA has been used, the unit shall be inspected for:

1. Cuts, abrasions, or worn parts.

2. Browning or blackening of the air supply cylinder.

3. Distorted rubber bumper or gauge lens on the air supply cylinder.

4.

Loose, missing, or damaged parts.

5. Security of hardware used to fasten shoulder and waist straps.

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Page 5

Replacing the Air Supply Cylinder

When the air supply cylinder is empty, or the pressure remaining has fallen below 4,000psi, the

cylinder must be replaced with a full cylinder.

To replace the air supply cylinder:

1. Place the SCBA on a clean dry surface, with the cylinder up.

2. If the SCBA has been in use, and air pressure remains in the system:

a. Close the cylinder valve by rotating the knob clockwise.

b. Release any residual air pressure in the unit by opening the purge valve.c. Close the purge valve.

d. Turn off the Pak-Alert SE by pressing the reset button twice.

1. If the Pak-Alert SE starts to chirp about once per second, and the unit fails to

sound the two beep deactivation tone, all air pressure has not been bled fromthe system, and the Pak-Alert SE will not turn off.

2. Bleed off the residual air, and turn off the Pak-Alert SE by pressing the reset

button twice.

I. The green flashing light will go out, and a two-beep deactivation tonewill be heard from the sensor module.

3. Remove the old cylinder from the backframe.

a. Rotate the hand disconnect on the high-pressure hose counter clockwise.

b. Remove the high pressure hose from the cylinder valve.c. Disengage the latch on the cylinder retention strap by pressing on the thumb release

while lifting on the end of the latch.d. Grasp the cylinder at the cylinder valve assembly, push down on the locking tab

below the cylinder valve, lift the cylinder free from the bottom hook and slide the

cylinder out of the backframe.

4. Visually inspect the cylinder for cuts, abrasions, and burns.

a. Refer toInspection of Composite Air Cylinders.

1. Cylinders that show damage or evidence of exposure to heat or flames shouldbe removed from service, emptied of air, tagged with an SCBA Repair

Request Form and reported to the Mask Room.

5. Obtain a new air supply cylinder.

a.

Inspect the new cylinder for cuts, abrasions, and burns.b. Refer toInspection of Composite Air Cylinders.

c. Check that the new cylinder is charged with at least 4000psi.

6. Insert the new full cylinder into the backframe.a. Slide the top of the cylinder upward under the strap.

b. Engage the cylinder hangar in the hook at the bottom of the backframe.

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Page 6

7. Secure the cylinder to the backframe by pushing the latch on the cylinder retention strap

toward the backframe, and fully engage the cylinder latch assembly.a. Do not use excessive force to lock the latch.

b. If the cylinder retention strap is too tight or too loose:

1. Adjust the tri-slide buckle to the proper length and re-engage the latch.

8. Inspect the coupling nut seal and the threads on the SCBA for cuts, evidence of wear,

abrasion or crushing.

9. Attach the coupling nut to the cylinder valve assembly. HAND TIGHTEN ONLY

10. Perform the complete pre-use inspection and testing procedure before placing the SCBAback in service, or before storing the SCBA on the apparatus.

Compressed Air Safety

The one hour rated composite compressed air cylinder of a Scott Air-Pak Fifty SCBA contains 87

cubic feet of air when pressurized to 4500psi. If this air is released as a result of a catastrophic failure

of the SCBA cylinder, it has the ability to cause fatal injuries to personnel, and major propertydamage to objects in the immediate area. To reduce the possibility of failures of the air supply

cylinder, the cylinder must be inspected daily and after each use. Exposure to chlorine containing

chemicals can weaken the air supply cylinder, possibly leading to catastrophic failure. Detergentcleaners, such as laundry detergent should not be used to clean the cylinder of the Scott Air-Pak Fifty.The cylinder contains a copper disc used as an over pressure relief valve. The disc can be damaged by

corrosion by the use of detergents. The only cleaning materials that are to be used to clean the air

supply cylinder are Scott Multi-Wash Mini, and Ivory Liquid Dish Detergent.

To prevent injuries to personnel from flying debris:

1. Compressed air should never be used for cleaning unless it is reduced to less than 30psi by an

approved regulator.

2. Compressed air from an SCBA cylinder shall NEVERbe used for cleaning

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CHAPTER 7AIR UNITS SOPS

AND GUIDELINES

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Page 2

AIR UNIT STANDARD OPERATING PROCEDURES & GUIDELINES

The Mask room, Air 1, Air 2 and all S.C.B.A. related issues come under the operational control of

the Safety Office. The Department maintains four compressors. Three are located at fixed

facilities, E-4, E-8 & TA. The Fourth is mobile and is based at E-4. They shall be operated and

staffed by members that hold a current FD Form 140 on that particular apparatus, Scott

Field Level Certified Technicians and trained in the operation of the compressors. CompanyOfficers at these locations shall ensure that in the absence of the regular technician that the

air unit is staffed with a qualified individual.

1. The primaryfunctionof the Air Units are to provide full S.C.B.A. air bottles and full oxygen bottlesat the scene of emergencies. These units shall be maintained in a state of readiness at all times.

The Secondary functions include:

a. The daily exchange of breathing air and oxygen bottles located in the Battalion

Headquarters and other locations that have SCBAS and storage racks.

b. The filling of exchanged SCBA cylinders and exchanging of used oxygen bottles.

c. Performing field level maintenance on SCBA.

d. Assistance in the mask room with repairs and maintenance of SCBA including repair

of face pieces.

e. Monitoring the condition of the air compressor.

f. Daily monitoring of the amount of reserve oxygen available.

g. Provide other resources carried on the units as directed (generator power, lights, fans,

etc.).

h. Suchother duties that may be assigned by the Safety Officer or OIC of the stations

housing theAir Units.

2. VehicleMaintenance: In addition to the check list (FD 54.2AU), the vehicle operator shall daily:

a. Check and maintain all fluid levels (including oil, water and transmission fluid) at

full or recommended levels.

b. Ensure that the vehicle is mechanically ready for service; bleed brake air tank, if

required for that vehicle.

c. Ensu

dcfd scba manual

Documents

number of scba

assigned scba

unserviceable scba

functioning scba

replacement scba

company members

scba repair request

hazardous atmospheres