1. Annual Self-Contained Breathing Apparatus Refresher TrainingJanuary 2013

2. References IFSTA Essentials 5th Edition Jones & Bartlett Fundamentals 2nd Edition Delmar Handbook 3rd Edition NFPA 1001- Standard for Firefighter ProfessionalQualifications NFPA 1981-Standard on Open Circuit SCBA forFirefighters BTVFC SOG- SCBA Operational ReadinessInspection Guidelines BTVFC SOG- SCBA Utilization 3. Members w/ Restrictions Statement Members with Restrictions will be allowed tofully participate in the classroom portion of this training. Members with Restrictions will be allowed to participate in portions of the Hans- On evolutions. They will NOT be allowed toparticipate in live fire evolutions or bail-outevolutions. 4. Job Performance Requirements NFPA 1001 2008 Edition 5.3.1 Use SCBA during emergency operations. 5.3.9 Conduct a search and rescue in a structure. 5.5.1 Clean and check ladders, ventilationequipment, self-contained breathing apparatus(SCBA), ropes, salvage equipment, and hand tools. 5. Terminal ObjectiveThe firefighter shall correctly identify the functions, care, use, inspection, maintenance, limitations, and safety features of the self-contained breathing apparatus, including thedemonstration of donning and doffing, and useof the SCBA in obscured visibility. 6. OverviewClassroom Portion Discuss the backpack and harness assembly. Discuss the air cylinder assembly. Discuss the regulator assembly. Discuss the face piece assembly. Discuss routine maintenance and inspections. Discuss cleaning and sanitizing. Discuss replacing an empty air cylinder. Discuss the use and limitations of the SCBA. 7. Overview Hands-on Evolutions Within one (1) minute, correctly don and doffthe SCBA while wearing protective clothing. Successfully demonstrate the ability toperform in obscured visibility with an SCBA Given a passage of limited or restricted size,shall successfully demonstrate doffing theSCBA, passing through the opening, and re-donning the SCBA. 8. Motivation 9. Four (4) Components Backpack & Harness Assembly Air Cylinder Assembly Face Piece Assembly Regulator Assembly 10. Backpack & Harness Assembly Holds unit in place onfirefighters back. Manufactured of metaland/or high temperatureresistant materials. Should not fail when burned Adjustable harness straps All straps should be secured Adjust straps to carry most of the weight on the hips 11. Backpack & Harness Assembly Drag Rescue Loop Pak-Tracker Dual EBSS Dual Sound EmittingPiezos Dual RedundantPressure Reducer Battery Pack 12. Air Cylinder Assembly Contain the compressedair for breathing Strong & durable,heaviest part of unit 13. Regulator Assembly Purge Valve (notbypass) Doffing Switch 14. Heads Up Display (HUD)Low Battery Indicator Two lights glowing(Green) Full Cylinder One light glowing (Green) Cylinder One light flashing slowly(Yellow) cylinder One light flashing rapidly(Red) cylinder 15. Face Piece Assembly Lens Seal Nose Cup Voicemitters Head Harness Voice Amplifier 16. Routine Inspections & Maintenance Inspection of the Breathing Air Cylinder Visually inspect breathing air cylinder and valve assembly for physical damage such as dents or gouges in metal or in composite wrapping. Cylinders which show physical damage or exposure to high heat or flame, such as paint turned brown or black, decals charred or missing, pressure gauge lens melted or elastomeric bumper distorted, and cylinders which show evidence of exposure to chemicals such as discoloration, cracks in the cylinder or the composite wrapping, peeling of the outer layers of the composite wrapping and/or bulging of the cylinder wall, shall be removed from service and emptied of compressed air. 17. Routine Inspection & Maintenance Inspection of the Breathing Air Cylinder Check the latest cylinder hydrostatic test date toensure it is current. The date of manufacturemarked on the cylinder is also the date of the firsthydrostatic test. Check for damage of the cylinder valve handwheel and the threads on the cylinder valveoutlet. 18. Routine Inspection & Maintenance Inspection of the Breathing Air Cylinder Check the relief valve (burst disc) for damage ordirt. Check the cylinder pressure gauge for FULLindication. If cylinder pressure is less than FULL,replace with a fully charged cylinder. 19. Routine Inspection & Maintenance Inspection of the Respirator (If any damage is found in this inspection, remove the respirator fromservice and tag for repair by authorized personnel) Inspect the complete respirator for worn or damagedcomponents. a) Inspect hoses and rubber parts which exhibitcracking, splitting, or brittleness. b) Inspect harness webbing for cuts, tears, abrasion,fraying, or indication of heat or chemical damage. c) Check all buckles and fasteners for proper operation. d) Check the cylinder retention system for damage andfor proper operation. e) Verify that the respirator has been properly cleaned. 20. Routine Inspection & Maintenance Inspection of the Respirator Remove the breathing regulator from the face piece by pulling back on the regulator retaining latch and rotating the regulator turn. Inspect the gasket on the breathing regulator that seals against the face piece for rips or damage that may break the seal. Inspect the breathing regulator for damaged or missing components. Verify that the regulator gasket is not damaged and is in place around the outlet port of the regulator. Verify that the purge valve (red knob) is not damaged and turns smoothly one-half turn from stop to stop. Inspect the Heads-Up Display for damage. Verify that the rubber guard is in place and is not torn or damaged. Verify that the lock tab slides easily and that the lock tab spring returns the tab to the lock position. 21. Routine Inspection & Maintenance Inspection of the Face Piece Examine the face piece assembly for damaged or worncomponents. The face piece must be complete and inserviceable condition with no worn, loose, or damagedcomponents. Inspect the face piece as follows: Inspect the face piece seal and other rubber components for deformation, wear, damage, or cracks. Inspect the lens for cracks, gouges, scratches, or any condition that could impair the operation of the face piece or the users vision. 22. Routine Inspection & Maintenance Inspection of Face Piece Inspect the lens frame or bezel for damage such as cracks or distortion. Check that all lens frame retainers or bezel screws are present and installed correctly. Check that all harness anchors are present and operating properly. Inspect the head harness for correct installation with all straps oriented correctly. Inspect the head harness for damage or worn components. Inspect the voicemitters for dents or damage. Verify that the voicemitters are properly installed and secure in the voicemitter ducts. 23. Routine Inspection & MaintenanceAV 2000 AV 3000 24. Routine Inspection & Maintenance Inspection of the Face Piece Inspect the nose cup for cuts or damage. Also look for any signs of damage to the face piece port side of the nose cup where the regulator attaches. Check that the nose cup is properly seated between the flanges of the voicemitter ducts. All SCOTT face pieces used with this respirator must be fitted with a nose cup. Verify that the Nose Cup is properly installed for the model of face piece being used. A Nose Cup is standard on the SCOTT AV-2000 and AV-3000 full face pieces. Verify that the face piece is clean. Adjust the head straps to the full outward position 25. Routine Inspection & MaintenanceAV 2000 AV 3000 The AV-2000 Nose Cup goes SCOTT AV-3000 Face piecesBEHIND the face sealare fitted with a Nose Cupwhich fits in front of theface seal. 26. Routine Inspection & MaintenanceSCOTT EPIC VoiceAmplifier 27. Routine Inspection & Maintenance Maintenance of the EPIC Amplifier Clean the voice amplifier assembly when necessary using a cloth dampened with a solution of water and a mild detergent. When storing the amplifier for an extended period of time, batteries should be removed to prevent damage to the battery terminals. Remove depleted batteries and replace with fresh batteries in a timely manner. Depleted batteries will cause damage if left in the Voice Amplifier for an extended period of time. Except for the replacement of the batteries, no attempt shall be made to do maintenance or repairs beyond the scope of this instruction manual without proper training. 28. Operational Testing Check that the breathing regulator purge valve (red knobon regulator) is closed (full clockwise and pointer on knobupward). Fully depress the center of the air saver/donning switch onthe top of the regulator and release. Slowly open the cylinder valve by fully rotating the knobcounterclockwise. VIBRALERT alarm shall actuate and then stop. The HEADS-UP DISPLAY will initialize with all five lights on for twenty seconds followed by display of cylinder supply level. If the LOW BATTERY light at the far right of the display remains lit or begins to flash, replace the batteries according to the BATTERY REPLACEMENT section of this instruction before proceeding. 29. Operational Testing Check that the remote pressure gauge is operating properlyand that it reads within 10% of the value on the cylinderpressure gauge. Don the face piece or hold the face piece to the face toeffect a good seal. Inhale sharply to automatically start theflow of air. Breathe normally from the face piece to ensureproper operation. Remove face piece from face. Air shall freely flow from theface piece. Fully depress the air saver/donning switch on the top ofregulator and release. The flow of air from the face pieceshall stop. Examine the complete respirator for air leaks.There shall be no leakage of air from any part of therespirator. 30. Operational Testing The regulator is equipped with a red purge knobwhich allows air to flow into the face piece in anemergency without breathing on the respirator.The purge control is also used to release residualair from the respirator after the cylinder valve isturned off. Check the purge valve as follows: Rotate purge valve 1/2 turn counterclockwise (pointer on knob downward). Air shall freely flow from the regulator. Rotate purge valve 1/2 turn clockwise to full closed position (pointer on knob upward). Air flow from regulator shall stop. 31. Operational Testing Push in and rotate the cylinder valveknob clockwise to close. When thecylinder valve is fully closed, open thepurge valve slightly to vent residualair pressure from system. As theresidual air pressure vents from thesystem, the remote pressure gaugeneedle will swing from FULL andmove towards EMPTY. Observe thelights of the HEADS-UP DISPLAY andverify that they light properly indescending order. Close the purgevalve when the gauge needle crossesthe mark but before thebeginning of the red EMPTY band. The VIB RALERT end of service indicator alarm shall actuate (rapid clicking). The red light on the far left of the HEADS-UP DISPLAY shall flash rapidly at ten (10) times per second. 32. Operational Testing After verifying that all alarms are functioning, open thepurge valve slightly to vent the remaining residual airpressure from the system. All alarms shall cease operation when the system pressure drops to zero except the accessory electronic end of service time indicator. To terminate the electronic end of service time indicator, press the Manual Reset button on the Control Console twice and then twice again after the flashing green light sequence. When air flow stops completely, return purge valve tothe fully closed position (pointer on knob upward). 33. Operational TestingIF ANY DISCREPANCY OR MALFUNCTION ISNOTED DURING THE INSPECTION, DO NOT USE THE RESPIRATOR. REMOVE THE RESPIRATORFROM SERVICE AND TAG IT FOR REPAIR BYAUTHORIZED PERSONNEL. 34. Sensor Module LightsActionSensor Module Lights WillStart up PASS (Open cylinder) Bright light then flash GREENNormal OperationFlash GREENInstall CylinderFlash BLUERemove Cylinder Flash REDRespirator Low Air (1/4 cylinder) Flash ORANGE (alternately)Low Battery while ONFlash ORANGE once every (2) secondsShut Down Lights OFFPress RESET w/ unit OFF Bright light then:(Battery Test) Flash GREEN if Good/Flash RED if lowPress MANUAL ALARM w/ unit off Flash GREEN then Full Alarm Flash REDPress RESET from manual alarm Returns to Flash GREENPASS Pre-AlarmFlash RED (alternately)PASS Full Alarm Flash RED (simultaneously) 35. Battery Test The backframe lights will display a BRIGHT light FOLLOWEDBY THE FI NAL STATUS COLOR. GREEN lights illuminated on the control console and backframe lights indicate sufficient battery power remaining RED lights on the control console and backframe lights indicate that the batteries are low must be replaced before the respirator is to be used again. See Battery Replacement section of these instructions. If a low battery message occurs, SCOTT recommends thatALL batteries be changed before the respirator is used. Seethe BATTERY REPLACEMENT section of this instruction fordetails. 36. Donning & Preparation for Use Always check the cylinder gauge for a FULLindication. If the cylinder is not full, replace thecylinder before use. A gauge indication of otherthan full may indicate an air leak in the cylinderand valve assembly or a malfunction of the gaugeassembly. Always verify that the cylinder is held securely bythe cylinder retention assembly. If a wall storage bracket is used, follow theinstructions of the bracket manufacturer forplacing arms through shoulder straps and freeingthe respirator from the bracket. 37. Donning & Preparation for Use If the respirator is stored in a hard or soft storagecase, place the case on the ground or levelsurface and open the case. Secure the regulatorin the regulator holder. Spread shoulder straps and fold open waist pad. Stand the respirator on the cylinder valve with cylinder toward you and the shoulder straps away from you. Pick up the respirator and swing it around behind you as if you were donning a coat. While leaning slightly forward, slide unit down back and pull on shoulder adjusting straps. Ensure that the shoulder pads fall into place on the shoulders. 38. Donning & Preparation for Use Pull down on shoulder straps to settle the unit inposition on the back. While still leaning slightly forward, connect the waistbelt buckle and adjust the belt by pulling forward onthe two (2) side-mounted belt ends. Tuck the beltends into the waistband. Grasp waist belt buckles.Extend waist belt and connect. Pull on belt ends to adjust waist belt for firm fit onhips. Stand up straight and readjust the shoulder straps asneeded to ensure the weight of the backframe iscarried on the hips. Tuck in the ends of the shoulderstraps. 39. Special Considerations The respirator MUST NOT be worn when conditions prevent a goodface to face piece seal. Such conditions include but are not limitedto: long hair at the forehead or the side of the face that interferes withthe sealing surface or gets caught in the head harness buckles, facial hair such as growth of beard or sideburns, or low hairline thatcrosses or interferes with the sealing surface, thick or protruding hairstyles such as pony tails or buns that interferewith the smooth and close fit of the head harness to the head, temple pieces on corrective glasses, a skull cap that projects under the face piece, excessive use of cosmetics including moisturizers, make-up, or aftershave, excessive perspiration, the absence of one or both dentures, weight loss or weight gain since last fit testing, facial scarring, anything else which interferes with the face to face piece seal or the fitof the head harness to the head. 40. Donning the Face Piece Adjust the head straps to their full outward position. Hold the face piece in one hand and hold the head harness by thestrap at the base of the head net. Place the face piece on the face with chin properly located in thechin pocket while pulling the head harness over the top of thehead. Verify that no hair or clothing is interfering with the face toface piece seal. Tighten the neck straps by pulling the two lower strap ends towardthe rear of the head. Stroke the head harness net down the back of the head using oneor both hands. Verify that the head harness is lying flat against theback of the head. Retighten the neck straps. Tighten the two temple straps. Adjust the temple straps by pullingthe two temple strap ends toward the back of the head. Over-tightening may cause discomfort. Retighten the neck straps if required 41. Common Face Piece Donning Problems Head Harness Strap twisted, Head Harness off-center or not flat against the head, Head Harness too high on the head, Hair or clothing in the face seal, Faceseal rolled over inside the face piece rather thanflat against the face Face piece is sitting too low on the face as evidencedby pressure on the forehead or the face piece makingcontact with the throat area permitting a break in theseal. 42. Using the Respirator Fully depress the center of the air saver/donning switch on top ofregulator and release. The breathing regulator is equipped with anair saver/donning switch to prevent the rapid loss of air supplywhen the cylinder valve is open and the face piece is removed fromthe face or the regulator is removed from the face piece. If the regulator is not attached to the face piece, proceed asfollows: a) Verify that the regulator gasket is not damaged and is in place around the outlet port of the regulator. Align the two flats of the regulator outlet port with the corresponding flats in the face piece port (the red purge valve on the regulator will be in the 12 oclock position). Insert the regulator into the face piece port. Rotate the regulator counterclockwise (as viewed from inside of face piece) until the red purge valve knob is on the left side of the face piece. The lock tab on the regulator will lock into the face piece retainer with a click. When the lock tab is properly engaged, the regulator will not rotate. 43. Using the Respirator Slowly open cylinder valve fully by turning the valve knobcounterclockwise until it stops (approximately 2 1/2 full turns of theknob). Observe the operation of the alarms: The VIBRALERT end of service indicator alarm will actuate and thenstop. The HEADS-UP DISPLAY shall initialize for twenty (20) seconds andthen display the cylinder level. If the air saver/donning switch has not been depressed prior toopening the cylinder valve, the VIB RALERT Alarm will not actuatedue to the air flowing freely on the facepiece. With facepiece sealed to face, inhale sharply to actuate respirator.Air will then be supplied during inhalation. 44. Termination of Use Leave contaminated area or be certain that respiratoryprotection is no longer required. Loosen the temple straps slightly by lifting the upperfacepiece buckles away from the head. The facepiecebuckles have Ushaped release lever extensions. Loosen the neck straps by lifting the lower facepiec bucklesaway from the head while lifting the facepiece away fromface. Remove the facepiece by pulling it up and over the head. To stop the flow of air from the facepiece, fully depress theair saver/donning switch on top of the regulator andrelease. 45. Termination of Use Close the cylinder valve if you are not going to resume useof the respirator. Slightly loosen shoulder straps by lifting ends of shoulderstrap slide buckles up, release waist belt by pressing releasebutton in center of waist belt buckle, and remove the unitfrom your back. Proceed in accordance with the requirements of yourrespiratory protection program for service of the respirator,including the following: Replace the cylinder with a fully charged cylinder (see the CYLINDER REPLACEMENT Section of this instruction) Clean the respirator according to the CLEANING AND STORAGE section of this instruction. Inspect the respirator according to the REGULAR OPERATIONAL INSPECTIONS section of this instruction. 46. Resume Use of Respirator NEVER resume use of a respirator where an end of service indicatoralarm was activated without first determining and correcting thereason for the end of service indicator alarm. Make sure that the remaining air supply in the cylinder is sufficientto accomplish the purpose for which respirator use has beenresumed. As a general rule, replace partially depleted cylinders withfull cylinders before respirator use is resumed. To resume use of the respirator, repeat the respirator and facepiecedonning procedures as defined in the USE OF THE RESPIRATORsection of this instruction. W hen operations using the respirator are complete, leavecontaminated area or be certain that respiratory protection is nolonger required and proceed with the TERMINATION OF USE stepsdescribed above. 47. Use in Standby The respirator may be donned and worn in "Standby," so that it is readyfor use. This means the respirator is in place on the users body with theshoulder straps properly adjusted and the waist belt buckled, but the facepiece is not donned (sealed to the face) and the respirator is not beingused. Leave the cylinder valve fully open and verify that the air saver/ donningswitch is depressed. Remove the face piece but leave the regulator attached to the face piece. Keep the face piece ready for use either of two ways: Hang the face piece from the snap clip on the left shoulder pad, Hang the face piece from the optional neck strap. The regulator can be detached from the face piece until needed. To detach the regulator from the face piece: Place your right hand over the cover with your thumb on the lock tab. Pull the lock tab toward the cover and rotate the regulator turn clockwise (viewed frominside of face piece). W hen the red purge valve is in the 12 oclock position remove regulator from the facepiece. The regulator can be stored in the optional regulator holder on the waist belt. 48. Low Battery As the batteries begin to approach the end of their useful life, thelow battery condition will be signified by the following: The round LOW BATTERY indicator at the far right of the HEADSUPdisplay will light for twenty (20) seconds and then begin to flash slowlyat once a second. If the respirator is equipped with a PAK-ALERT SE 7 distress alarm, thegreen lights on the control module and backframe will go out. While in low battery condition, the HEADS-UP display and the PAK-ALERT SE 7 distress alarm will continue to operate for a period oftime greater then the longest duration cylinder available for therespirator. However, the batteries must be replaced before therespirator is used again. See Battery Replacement section of theseinstructions. 49. Emergency Operation If any end of service time indicator alarm actuates during use, (the VIB RALERT orthe HEADS-UP DISPLAY rapidly flashing red light), even if the air supply has notbeen depleted to approximately 25% of full rated capacity, LEAVE THECONTAMINATED AREA AT ONCE. If the air supply is partially or completely cut off during use, fully open the redpurge valve on the regulator by turning it counterclockwise (pointer on knobdownward) and check to be sure the cylinder valve is fully opened (turned fullycounterclockwise). LEAVE THE CONTAMINATED AREA AT ONCE AFTER OPENINGTHE PURGE VALVE. If the air supply begins to flow freely into the facepiece during use, fully open thered purge valve knob on the regulator by turning it counterclockwise (pointer onknob downward). Partially close the cylinder valve by pushing in and rotatingclockwise to regulate the flow of air to satisfy the requirements of the user. Do notclose the cylinder valve completely. LEAVE THE CONTAMINATED AREA AT ONCEAFTER PARTIALLY CLOSING CYLINDER VALVE. If there is a blockage of air flow or sudden and complete loss of the system airsupply so that there is total loss of respiratory protection, LEAVE THECONTAMINATED AREA AT ONCE. USE ALL NECESSARY PRECAUTIONS AND FOLLOWEMERGENCY PROCEDURES PRESCRIB ED BY YOUR ESTABLISHED RESPIRATORYPROTECTION PROGRAM. If any of the above procedures are used, REMOVE THERESPIRATOR FROM SERVI CE AND TAG FOR REPAIR BY AUTHORIZED PERSONNEL. 50. Cylinder Replacement Procedure Leave the area requiring respiratory protection and be certain thatrespiratory protection is no longer required. Doff the facepiece.(See TERMINATIONS OF USE section of this instruction.) Push in and rotate the cylinder valve knob clockwise and completelyclose the cylinder valve. Release residual air pressure in therespirator system by opening the purge valve slightly. When theflow of air from the facepiece stops, close the purge valve fully. Release the waist belt, loosen the backframe harness, and removethe respirator. Lay the respirator on a solid support with thecylinder facing up. Disengage the cylinder retention strap by gripping the latch plate asshown in and lifting on the end of the latch. Pull both SNAP-CHANGE locks horizontally away from the pressurereducer to release the cylinder connector. See FI GURE 20. On unitsequipped with a PAK-ALERT SE 7 distress alarm, the Sensor Modulelights will flash to indicate the cylinder has been released. 51. Cylinder Replacement Procedure Grasp the cylinder below the retention strap and liftthe cylinder free from the backframe and remove. Inspect the High Pressure Seal in the high pressureinlet. If high pressure seal is damaged or missing,remove the respirator from service and tag for repairby authorized personnel. Replace with a fully charged cylinder and valveassembly of the appropriate pressure rating. Verify thatthe replacement cylinder has protective cap installedon the CGA fitting on the valve and that the cylinderconnector is clean and free of dirt and debris. 52. Cylinder Replacement Procedure Slide the top of the cylinder up under the cylinderretention strap. Orient the SNAP-CHANGE connectorover the high pressure inlet of the pressure reducer. Engage the cylinder SNAP-CHANGE by pushing thecylinder connector into the pressure reducer firmlyuntil both SNAP-CHANGE locks click and lock. See FIGURE 23. On units equipped with a PAK-ALERT SE 7distress alarm, the Sensor Module lights will flash toindicate the cylinder has been properly engaged. Secure the cylinder in place by pushing the latchtoward the backframe to lock the cylinder latch andfully engage the cylinder latch assembly. 53. Cleaning the Respirator Damp sponge dirt accumulations from theexterior of the respirator. If respirator has been exposed to potentiallyhazardous materials, decontaminate inaccordance with established procedures. Clean the facepiece and mask mountedregulator as described below. 54. Cleaning the Face Piece With the regulator removed, carefully wash the facepiece assembly with SCOTT recommended cleaneraccording to the instructions provided with the cleanerand thoroughly rinse in clean water. If the face piece isheavily soiled, it may be necessary to first wash theface piece with a solution of mild soap or detergent inwarm water (110 F / 44 C maximum). To sanitize or disinfect the face piece, use the SCOTTrecommended sanitizing or disinfecting cleaneraccording to the instructions provided with the cleaner.Sanitizing or disinfecting may require a specific contacttime of the cleaner prior to rinsing. 55. Cleaning the Face Piece Rinse with drinking water using a spray bottleor running water. Shake excess water off of face piece and thendry with a clean, lint free cloth or gently blowdry with clean, dry breathing air of 30 psig orless pressure. Do not use shop air or any otherair containing lubricants or moisture. 56. Cleaning the Regulator Remove the breathing regulator from the face piece by pulling backon the locking clip and rotating the regulator 1/4 turn clockwise. Remove any obvious dirt from the external surfaces of the regulatorusing SCOTT recommended sanitizing or disinfecting cleaner with asponge or soft cloth. Inspect the inside of the regulator assembly through the regulatoropening. If excessive dirt or soil is present, forward regulatorassembly to SCOTT trained authorized personnel for thoroughcleaning. Depress the donning/air saver switch, c lose the purge knob byturning fully clockwise. Use the SCOTT recommended sanitizing ordisinfecting cleaner in the regulator opening and the immediatearea around the opening .. Be sure to cover internal componentscompletely. 57. Cleaning the Regulator Follow the user instructions for the SCOTTrecommended cleaner. A specific contact timemay be required for sanitizing or disinfectingbefore rinsing. Rinse the regulator with drinking water usinga spray bottle or gently running tap water. Shake excess water out of regulator.Completely air dry the regulator before use. 58. Post-Cleaning Regulator Check Check to make sure the respiratorcylinder is at least 1/4 full. Verify that the donning/air saverswitch is fully depressed. Close the purge knob. Reattach the regulator to therespirator, (if removed for cleaning). Slowly open the cylinder valve atleast one (1) full turn. If air flow from the regulator is heard,close the cylinder valve, repeat steps1, 2 and 3. If air flow is still heard,close the cylinder valve fully, tag unitfor repair and remove from service. Open the purge valve and observethe air flow from the regulator spraybar. Droplets of water indicate theregulator is not dry. Dry the regulatoraccording to Step 8 of PROCEDUREFOR CLEANING THE MASK MOUNTEDREGULATOR section and repeat theREGULATOR CHECK. 59. Please print this page. By signing on the line below that you completed thiswhole training. Please submit to John Makin whenfinished._______________________________