SERVICE MANUAL TWIN MODEL RP050B(__ )
Contents
1. a eal oe 13 0 9579 98 16 PERFORMANCE CURVES toye t t do od do ka a pa a digen re 18 PART LIST ii oe ee eee Pee A een kei ern 20 3 SPECIFICATIONS RESPIRATORY PROTECTOR RP050B S1 2 INLET PRESSURE Max 150 PSIG STATIC 10 4 bar RATED AIR FLOW Max 100 SCFM 47 2 L s OPERATING PRESSURE 100 PSIG DYNAMIC 6 9 bar OUTLET PRESSURE RANGE 0 125 PSIG 0 8 6 bar OPERATING TEMP RANGE 68 150 F 20 65 C COMPRESSED AIR TEMP 0 105 F 17 TO 40 C AMBIENT AIR TEMP OPERATING RELATIVE 30 100 RH HUMIDITY INLET AIR OUTSIDE DIMENSIONS 48 L x 24 W x 5 75 D 1219mm x 610mm x 146mm WEIGHT INCLUDING MONITOR 53 LBS 24 1 kg REPLACEMENT FILTER SET FX050 2 4 GENERAL SAFETY WARNINGS WARNING THE MST RESPIRATORY PROTECTOR MODELS 1 2 3 4 5 SHOULD NOT be used when the air entering the filtering system is oxygen deficient The MST Respiratory Protector will not increase the oxygen content of the air SHOULD NOT be used in Inmediately Dangerous to Life and Health Atmosphere IDLH unless it is used in conjunction with a Back Up Escape system or a supplied air Self Contained Breathing Apparatus SCBA where applicable CARBON MONOXIDE MONITOR will alarm if Carbon Monoxide levels exceed requirements for Grade D Breathing set fourth by OSHA CSA If alarm should so2. Save Your Breath With MODERN SAFETY TECHNIQUES 11370 Breininger Rd Phone 800 542 6646 P O Box 87 888 mod safe Hicksville OH 43526 419 542 6645 Email modsafe bright net Fax 419 542 6475 www modsafe com SERVICE MANUAL TWIN MODEL RP050B J S1 2 RESPIRATORY PROTECTOR ake ake ake ake ake ake ake eee eee eee eee eee eee eee eee eee eee eee eee WARNING Do not attempt to operate this equipment without first reading and understanding these operating instructions Suitability for use of this device lies solely with user BES ke eke 216 ke 216 216 216 OBS 216 216 eke 216 216 216 216 216 216 216 216 26 216 216 216 216 216 216 E 216 216 16 216 ke 216 216 216 216 216 216 216 216 216 216 216 216 16 216 216 216 216 ake 216 216 216 216 216 oke 216 216 216 216 216 26 K K kk 06 08 2 CONTENTS SPECIFICATIONS v bx a e lp ae AAA 3 GENERAL SAFETY WARNINGS 054 Vade WES OM Sees oa 4 GENERAL PURIFICATION SYSTEM 5 GENERAL OPERATIONS I CUSTOMER AIR SUPPLY een ar 8 MST RESPIRATORY PROTECTOR INITIAL INSTALLATION AND 5 9 MST RESPIRATORY PROTECTOR GENERAL OPERATION AND 12 PIETER SET SERVICE INSTRUCTIONS
3. STYLE SUPPLIED 27 BALL VALVE 3 4 FPT INLET FIGURE NO 3 11 AIR SAMPLE TO MONITOR ADJUSTMENT 2621 216 ke 216 216 216 216 216 216 216 16 ko 16 216 216 216 216 216 216 216 216 216 216 216 OO 216 216 216 216 216 216 216 216 216 216 216 216 216 216 OO 16 216 216 216 216 216 216 216 216 216 216 216 216 216 216 216 ake OO 216 K 216 K Kk KK WARNING SERIOUS INJURY could result if the ATR SAMPLE METERING VALVE is not properly adjusted Proper sample air flow to CO monitor is required for monitor to give correct level readout ak ok ak ak ak ake 26 ake ake 216 216 ake ake oft 216 26 ake 21 216 oft fe 21 216 216 oft afe ae 216 216 214 oft 216 216 ak 216 oft oft 216 216 216 of oft 216 216 of of 216 of oh of ok ok ok AIR SAMPLE FLOWMETER ADJUSTMENT A After pressurizing system and respirators air flow is set adjust sample regulator to 10 20 PSI pressure B Turn the flowmeter s adjustment knob counter clockwise slowly until the black floating ball is within the GREEN BOXED AREA etched on flowmeter body CAUTION if adjustment knob is turned too quickly the black floating ball may get stuck to the top of flowmeter scale Damage to Monitor s Sensor may occur due to extremely high air flow to sensor not covered by sensor warranty AIR SAMPLE FLOWMETER BLACK FLOATING BALL AIR SAMPLE TUBE FROM CO MONITOR
4. dirt rust scale and often deadly Carbon Monoxide gas As the air passes through the First Stage B of the MST Prefilter particulate matter is trapped and retained The air then enters the Second Stage C of the Prefilter which coalesces liquid contaminates down to seventy five hundredths 0 75 of a micron in size 0 3 micron for particulate matter with an efficiency rating of 99 97 meets Underwriters Laboratories Specification UL 586 for High Efficiency Particulate Air Filter Units The liquid contaminates are trapped in the lower chamber of the prefilter and expelled out of the unit by the Auto Drain The air entering the Air Scrubber Inlets is 99 97 free of liquid water and contaminants down to 0 3 micron in size The Third Stage D of the Air Scrubber contains an odor absorbing activated charcoal which also collects various gaseous Hydrocarbons such as oil fumes benzene etc The Fourth Stage E of the Air Scrubber contains a low temperature catalyst which converts Carbon Monoxide gas into Carbon Dioxide The unique catalyst also converts or absorbs Ozone Nitric Oxide Sulfur Dioxide Nitrogen Dioxide Hydrogen Sulfide Ammonia Acetaldehyde Methyl Chloride Methyl Ethyl Ketone Acetone and Methyl Alcohol Finally the air passes through a one 1 micron Filtration Disk at F A sample of the filtered air is taken at G and passed through the Carbon Monoxide Monitor The Carbon Monoxide Monitor continuously checks the air quality
5. 4 80051 5 TUBE LOCKING COLLAR 5 S710 005 1 DRAIN TUBE 6 S687 005 1 3 4 HEX PLUG 7 80632 2 EXTRUDED MANIFOLDS 8 S687 004 4 Ya HEX PLUG 9 S608 006 4 x 3 8 HEX NIPPLE 10 80078 2 BLUE MANIFOLD 11 80009 2 MANIFOLD BRACKET 12 8006 148 6 BRACKET BOLTS 1 5011 040 10 MANIFOLD BOLTS 14 12021 10 MANIFOLD WASHERS 15 5037 055 4 BRKT MOUNT SCREWS 16 S412 009 4 INTERNAL L WASHERS 17 80115 4 FLAT WASHER 18 80001 2 BLUE BASE 19 80005 2 AL TUBE 3RD STAGE 20 80005 2 AL TUBE 4TH STAGE 21 80114 2 BASE BRACKET 22 5603 027 2 3 8 x 3 BR NIPPLE 23 80484 2 3 8 BR UNION 24 80014 1 150 PSI PR VALVE 25 80235 1 1 4 BRASS TEE 26 8638 016 1 3 4 x 1 4 RED BUSHING 27 80533 1 REGULATOR 28 8608 003 2 1 4 HEX NIPPLE 29 80091 1 PRESSURE GAUGE 0 160 30 S608 002 1 1 4 x 1 8 HEX NIPPLE 31 S623 001 1 1 8 90 ST ELBOW 32 80213 1 SAMPLE AIR FLOW METER 33 80261 1 TUBE LOCK COLLAR x 90 34 80208 B 1 MONITOR SAMPLE TUBE 35 80257 1 1 2 THK 24 x 48 MNTING BD 36 8008403 1 REMOTE ALARM 37 80077 1 CO MONITOR 2002 FOR MODEL RPOSOBA S 1 2 38 80127 1 CO MONITOR 5700 FOR MODEL RPOSBMST S1 2 38A 80247 1 120 VAC ADAPTER FOR 5700 CO MONITOR MODEL RPOSOBMST S 1 2 See following page Figure No 5 for detailed drawing 21 MODE
6. GREEN BOXED AREA FLOWMETER ADJUSTMENT KNOB AIR SAMPLE REGULATOR GAUGE 12 MST RESPIRATORY PROTECTOR GENERAL OPERATION AND MAINTENANCE 1 MST MONITOR Utilizes an electrochemical sensor to measure the carbon monoxide content of the respirable air If a problem has developed in the system the monitor will alarm due to one or more of the following conditions a Monitor is out of calibration The monitor should be calibrated monthly if used continuously and prior to use if used on a non continuous basis Calibrate monitor as outlined in the MST MONITOR MANUAL b If the monitor can be and is calibrated but the alarm still sounds the filter cartridge life is exhausted Replace all three 3 filter cartridges as outlined in the FILTER REPLACEMENT INSTRUCTIONS page 12 c Ifthe monitor can not be calibrated the carbon monoxide sensor may require replacement See MST MONITOR MANUAL for replacement instructions and other troubleshooting information The MST MONITOR has one 1 year warranty sensor has a two 2 year warranty All warranty work must be performed at factory d If the monitor was calibrated in a surrounding temperature other than where the system was being used and the temperature difference was 36 F 20 or greater the monitor may give a false alarm due to its characteristics Always calibrate the monitor in the temperature conditions where the monitor is to be used in Monitor best performs at temperature range
7. back up escape system or a supplied air self contained breathing apparatus SCBA where applicable LLLLLLLLLLLLLLDLLLLDLLLLLLDLLDLDLLLLLLLLLDLLLLLLLDLLDLDLLLLLLDLLDLDLLLLLLDLLDLDLLLLLLLLLLDLLILI MST Inc strongly recommends that a complete safety program be instated to ensure that the respiratory air is in compliance with all OSHA CSA standards and other applicable laws regulating the use of supplied air respiratory systems MST Inc recommends that the air quality be tested upon installation and periodically re tested to ensure that the minimum requirements for breathing air are maintained MST Inc will not assume any liability for accidents or personal injury resulting from the improper use of this equipment Service on this equipment should only be performed by qualified personnel This system is to be used only by trained qualified personnel in accordance with a respiratory program as outlined in OSHA Regulation 29 CFR 1910 134 b CUSTOMER AIR SUPPLY Refer To Figure No 3 1 SUPPLIED AIR LINE Use minimum 3 4 LD hose or pipe to MST Unit 2 SUPPLIED AIR LINE PRESSURE Maximum air pressure at MST Unit s inlet should not exceed 150 PSIG As a Safety Back Up all MST Units incorporate a pressure relief valve rated at 150 PSIG 3 SUPPLIED INLET AIR TEMPERATURE RANGE 68 to 150 F 20 65 4 SUPPLIED AIR CONDITIONING May be required ahead of MST s Unit to control a Inlet air temperature b Large Volumes of oil wate
8. for the proper air pressure requirements and set regulator s at point of attachment MST Unit outlet or remote regulated drops The air should be dynamically flowing through respirator hose assemblies when the air pressure is set DO NOT EXCEED RESPIRATOR HOSE ASSEMBLY MANUFACTURER S PRESSURE REQUIREMENTS OR PERSONAL INJURY COULD RESULT RF SIGNALS May be picked up by the Remote Alarm cord like an antenna and create interference with monitor s operation Shielding of this may be required to reflect these signals For further detail contact factory 10 INITIAL START UP AND INSTALLATION MODEL RP050B S1 2 RESPIRATORY PROTECTORG TEMP 68 F 29 C NORMAL INCOMING BELOW 50 PPM TOTAL SOLIDS PLUS LIQUIDS TEMP 68 F 20 C HIGH INCOMING LIQUIDS AEROSOL CONTENT ET CONDITIONED CONNECT POWER CORD MST OPTIONAL COMPRESSED AIR PREFILTER 30 100 R H P N 8010401 OR ADAPTER DEPENDING ON MONITOR SUPPLIED TO A DEDICATED SWITCHED 110 VAC OUTLET POWER SOURCE INSTRUMENT GRADE AIR u 4 R H OR LESS DESICCANT DRYER CARBON MONOXIDE MONITOR MINIMUM 3 4 SUPPLIED AIR LINE 119 db A REMOTE ALARM WITH 20 FT CORD DETACH MONITOR S SAMPLE TUBE HERE FOR CALIBRATION 3 4 FPT OUTLET ADJUST REGULATOR OF 100 PSIG THEN ADJUST AIR FLOWMETER SO BLACK FLOATING BALL IS BETWEEN 0 5 1 5 scfh OR IN THE GREEN BOXED AREA DEPENDING ON METER SCALE
9. per OSHA CSA requirements for Carbon Monoxide and digitally displays the amount present An audible alarm will alert operators if any dangerous levels of Carbon Monoxide exist MODEL RP050B S1 2 OPERATIONAL DIAGRAM CARBON MONOXIDE MONITOR CONTAMINATED AIR NIIS RD d N meme sur IR TT BA Ns RESE MMC 49 FIGURE NO 1 MODEL RP050B S1 2 RESPIRATORY PROTECTOR CONNECT THE POWER CORD OR ADAPTER CARBON MONOXIDE MONITOR DEPENDING ON MONITOR SUPPLIED TO A DEDICATED SWITCHED 110 VAC OUTLET POWER SOURCE MONITOR DISPLAY AUDIBLE ALARM 119 db 20 FT CORD SUPPLIED 3 4 INLET BALL VALVE 46 3 4 OUTLET CLOSE AND BLEED LINE DOWN STREAM WHEN REPLACING FILTER ELEMENTS 150 PSI SAFETY RELIEF VALVE AUTO DRAIN D P7 1 TYP _ po MOUNTING BOARD 1 2 THK x 24 x 48 1 TYP FIGURE NO 2 GENERAL OPERATIONS 2621 216 ke 21 216 216 216 216 216 216 216 216 EE 216 26 216 216 216 216 216 216 ak 216 ake 216 216 216 216 216 216 216 216 216 216 216 216 216 216 EEEE 216 216 216 OO 216 216 216 216 216 216 oke 16 K 216 K 216 K Kk KK WARNING The MST Respiratory Protector should not 1 be used when the air entering MST s Unit is oxygen deficient MST s Unit will not increase the oxygen content of the oxygen deficient air 2 be used in an Immediately Dangerous to Life and Health atmosphere IDLH unless it is used in conjunction with a
10. L RP050B S1 2 RESPIRATORY PROTECTOR D KAN ma ap TH LM 25 snum Es LI 7 A ETA Fe CONV TZ FIGURE NO 5
11. asures to take 6 MST RESPIRATORY PROTECTOR SYSTEM New filter set a Has no shelf life but should be stored in a cool dry storage area b When first installed in MST s unit the filters should be conditioned by flowing the customer s supplied air through system for several minutes 13 NOTE If MST s unit is not to be used for an extended period of time before storing check 3rd and 4th stage filters for presence of liquid moisture If moisture present dry system and replace all filters Also if moisture present consider changing filter set more frequent and or installing MST s OPTIONAL PREFILTER prior to MST s system hook up FILTER SET SERVICE INSTRUCTIONS Refer To Figure No 4 SERIEN WARNING Always turn off air supply and bleed air pressure before disassembling unit or serious injury could result 216 216 ake aka 216 16 216 16 eke 216 16 afe 216 216 216 16 afe 26 16 216 216 26 516 ake 216 16 ake 216 216 16 ala 216 ake 16 O ake 216 216 216 MST Inc recommends replacing all five 5 filter cartridges after one month s use unless conditions warrant more or less frequent replacement Conditioning equipment prior to the filtration system will increase the required service intervals when only low levels below 25 ppm CO of carbon monoxide are present To refill or replace the filter cartridges in the respiratory Protector Model RPOSOB S1 2 follow these steps refer to Fig
12. k Drain Tube in place Be sure to slide outside diameter of Drain Tube completely into inside diameter of Fitting or Retaining collar will not lock Drain Tube into place properly 2 8007803 Air Scrubber Third and Fourth Stages 14 a Loosen 8 Screw from 9 Bracket b Loosen five Manifold Bolts 10 enough to allow the Third and Fourth Stage Filter Tube Assemblies to move freely Remove the two front Bolts 10 with Washers 11 Slide out old Third And Fourth Stage Filter Tube Assemblies Remove old Third Stage Filter Cartridge 13 and Cap Gasket 12 from the Third Stage Aluminum Tube 16 Clean the Aluminum Tube in mild soap and water and wipe dry Refill the Third Stage Aluminum Tube 16 by sliding the new Third Stage Filter Cartridge 13 into the Aluminum Tube from the bottom Make sure that the flow direction arrow on the new Third Stage Filter Cartridge is pointing down for proper operation Remove 14 Sealing Label and install new 12 Cap Gasket on the top of the Third Stage Aluminum Filter Tube Assembly Slide the new Third Stage Aluminum Filter Tube Assembly in the Air Scrubber on the inlet side Remove old Fourth Stage Filter Cartridge 15 and Cap Gasket 12 from the Fourth Stage Aluminum Tube 17 Clean the Aluminum Tube in mild soap and water and wipe dry Refill the Fourth Stage Aluminum Tube 17 by sliding the Fourth Stage Filter Cartridge 15 into the Aluminum Tube from the top Make sure that
13. nd the replacement of defective materials or workmanship Users of supplied air respirators should evaluate their own particular application and perform their own tests for air quality to determine the suitability for use of this product For further information or questions about service or maintenance care of this unit contact your local distributor or MST Inc At 800 542 6646 17 MST INC SERVICE RECORD RESPIRATORY PROTECTOR MODEL RPOSOB S1 2 DATE OF SERVICE SERVICE PERFORMED 18 001 08 1455 MOT 09 OF 02 aunssaud SA MOT HIV VIS TAGOW SILLSIGFLOVUVHI D T S d 38 5538 19 17 09 NOITIIN 1 V W45S HIV 00L 08 09 0L 02 ANIM 95MVV 04839 Wdd S FANM 39NVIAHO3H3d Wdd 01 09 0 M0738 SNOILV1ND3Y 90V 5 5 13431 3aIXONOW NOSHVO 09 Wdd 01 3408Y NOILV InO3H 3avu5 H3d 04 34VS LON 713431 FAIXONOW M09 V MIIII9V V TVAONW3H 350I91 V 53 4 NOILVH IN3ONOO JAIXONOWN NO8HVO SA HIV 18 1300W SOLSIYFLIOVYVHI JINVINHOJY Id 00L S l 081 NOILVHLN3ONOO JGIXONONW NOSHVO L31NI 20 RESPIRATORY PROTECTOR MODEL RP050B S1 2 PARTS 1 80347 1 3 4 BALL VALVE 2 S608 009 2 3 4 HEX NIPPLE 3 80104 1 PREFILTER 100 SCFM
14. o air calibration gas refer to Monitor Manual POWER MONITOR CALIBRATE Connect the POWER CORD or AC ADAPTER to dedicated 110 VAC switched outlet power source Be sure the monitor s Green Normal or Power lightis on and after a 5 minute warm up calibrate monitor Refer to Carbon Monoxide Monitor Manual CALIBRATION GAS REQUIREMENTS Zero Gas Nitrogen free of CO Span Gas 50 to 150 ppm of concentration in air Calibration gas flow to monitor should be 0 5 to 1 5 SCFH approx 472 cc min REGULATOR SAMPLE AIR FLOW METER Needs to be set so proper air sample flow will be metered to the monitor After pressurizing system and respirator s air flow is set adjust regulator located before air sample flowmeter to 10 20 psig 100 psig max Turn the flowmeter s adjustment knob counter clockwise slowly until the black floating ball is within the GREEN BOXED area etched on the flowmeter s body CAUTION if adjustment knob is turned too quickly the black floating ball may get stuck at the top of the flowmeter scale Damage to monitor s sensor may occur due to extremely high air flow to sensor not covered by sensor warranty EXTREME TEMPERATURE CHANGES Avoid MST s monitor best performs at a temperature range of 0 105 F 17 to 40 C Always calibrate monitor after it has stabilized in the surrounding air temperature where system is to be used RESPIRATOR HOOD HOSE ASSEMBLY HOOK UP Consult Manufacturer s respirator manual
15. of 0 to 105 F 17 to 40 C e RF signals causing interference to monitor through Remote Alarm Options and or Optional Power Adapter cords Contact factory if this 15 occurring 2 MST MONITOR Alarms should be checked prior to use 3 MSTMONITOR Connect the POWER CORD or AC Adapter to dedicated 110 VAC switched outlet power source Be sure the monitor s Green Normal or Power light is on and after a 5 minute warm up calibrate monitor Refer to Carbon Monoxide Monitor Manual 4 MST MONITOR Flow of the air sample to monitor should be checked periodically to ensure sample air flow meter is not clogged This situation normally occurs when customers supplied air has excessive liquids in it and the filters in the MST unitare notroutinely changed Periodically check the regulator air flow meter for proper setting location of air flow meter floating ball and general appearance presence of excessive oil water 5 MST RESPIRATORY PROTECTOR SYSTEM Filters should be replaced monthly unless the air quality conditions warrant more or less frequent replacement Replace all 5 filter cartridges if a The CO monitor alarms fourth stage catalyst is used up b The operator detects a petroleum smell and or taste in his purified air third stage charcoal is used up NOTE If the supplied air entering MST s unit has high volumes of liquids in it the filter set life may be greatly reduced See CUSTOMER AIR SUPPLY page 8 for corrective me
16. r from entering MST Unit A coarse oil water extractor rated at 2 microns abs may be required if excessive oil water conditions are present Installation of the extractor should be located as close to MST Unit s inlet hook up as possible MST Inc has coarse oil water extractors available as an option 5 AVOID INSTALLING MST UNIT AFTER DESICCANT DRYER The Desiccant Dryer will produce extremely dry air 4 or less and MST s fourth stage catalyst requires 30 100 in the supplied air for the catalyst to work and remove Carbon Monoxide efficiently The extremely dry air produced by a Desiccant Dryer will also cause worker discomfort i e dry throat etc 1 2 3 4 5 6 7 9 9 MST RESPIRATORY PROTECTOR INITIAL INSTALLATION AND START UP Refer To Figure No 3 CONNECT CUSTOMER S PIPE HOSE TO MST UNIT Be sure a minimum 3 4 LD pipe or hose is used Purge new air line prior to connecting to MST Unit NEW FILTER SYSTEM CONDITIONING Flow supplied air through new filter sets for several minutes to condition REMOTE AUDIBLE ALARM Is supplied with unit Plug into monitor at the REMOTE ALARM jack It is supplied with a 20 Ft cord and produces 119 db To check audible alarm rotate zero potentiometer CW until display reading is equal to alarm level setting US 10 ppm CAN 5 ppm The audible alarm should be energized The zero potentiometer will have to be reset 00 using zer
17. the flow direction arrow on the new Fourth Stage Filter Cartridge is pointing up for proper operation Remove 14 Sealing Label and install new 12 Cap Gasket on the bottom of the Fourth Stage Aluminum filter tube Assembly Slide the new Fourth Stage Aluminum filter tube Assembly in the Air Scrubber on the outlet side Tighten Manifold Bolts 10 in sequence from center outward to 100 inch pounds Repeat Sequence and torque bolts to 250 inch pounds Recheck for proper torque limit Tighten Screw 8 on Bracket 9 to prevent any damage from occurring when transporting the Respiratory Protector NOTE Dispose of used filter cartridges in landfill according to local state and federal regulations TORQUE SEQUENCE 15 THIRD STAGE ALUMINUM TUBE ASSEMBLY FOURTH STAGE ALUMINUM TUBE ASSEMBLY FIGURE NO 4 16 3 Final Check and Calibration a Pressurize system and check for leaks Re tighten necessary parts to stop any leakage Flush system with compressed air for five 5 minutes c Calibrate the Carbon Monoxide Monitor as outlined in the Monitor s instruction manual RECORD KEEPING Record all periodical air quality checks monitor calibration dates filter cartridge change intervals and any other service performed on the Model RPOSOB S1 2 Respiratory Protector MST Inc Shall not be liable for any injury loss or damage direct or consequential arising out of the use of or the inability to use this product beyo
18. und remove respirator or activate SCBA and immediately move to safe breathable atmosphere Have the proper qualified personnel examine the equipment and make the appropriate corrections before using again SHOULD NOT have air inlet pressure greater than 150 PSIG static 10 4 bar Personal injury could result PURIFIED AIR provided at the point of attachment for the Manufactures Respirator Hose should be regulated and not exceeding the Manufacturers Respirator Hose Assembly pressure requirements 5 GENERAL PURIFICATION SYSTEM DESCRIPTION The MST Respiratory Protector a compressed breathing air purifier is a system designed to remove or reduce selected contaminates including Carbon Monoxide that is found in standard compressed airlines The Respiratory Protector gives you the advantage of connecting directly to shop air from a standard compressed air source to help provide breathing quality air to face masks helmets hoods and other supplied air breathing devices This eliminates the necessity of providing a separate breathing air compressor or air supply to your workers The Respiratory Protector has a four stage filtration system and a Carbon Monoxide Monitor that is mounted on a convenient mounting board that allows the unit to be mounted on any available surface SYSTEM DESCRIPTION Refer to Figure No 1 amp 2 Airentering the Respiratory Protector Filtration System at the inlet A is usually contaminated with oil water
19. ure No 4 1 80104 Prefilter Combined First and Second Stages a b Remove plastic Drain Tube 1 by pulling down on the Retaining Collar of Fitting 2 to release Drain Tube Unscrew Prefilter Bowl Assembly 3 from Manifold 5 and clean Bowl Assembly in mild soap and water blowing dry with low pressure compressed air Remove Two Stage Prefilter Element 6 by unscrewing End Cap Retaining Nut 4 and pulling Prefilter Element down over center rod of Manifold Discard clogged Prefilter Element Inspect Manifold 5 for dirt and contaminates clean as required and inspect O Ring 7 located inside Manifold for any cuts or cracks Replace O Ring if required to prevent air leakage Install new Two Stage Prefilter Element 6 by sliding new Element over center rod on Manifold so that rod protrudes from end of Element and Element is squarely seated against Manifold with rod centered in Element Screw End Cap Retaining Nut 4 onto threaded portion of rod until End Cap Retaining Nut is seated properly against end of Prefilter Element and Element has come solidly against shoulder in Manifold Apply a light film of petroleum jelly on beveled edge of Prefilter Bowl Assembly 3 and screw bowl Assembly into Manifold 5 until tight NOTE Be sure O Ring is properly seated in Manifold to prevent cutting O Ring HAND TIGHTEN ONLY Re attach Drain Tube 1 by sliding Drain Tube into end of Fitting 2 and pushing Retaining collar up to loc
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