MSA Abrasi-Blast Operating Manual Download Page 14 | Manualshive

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NOTE:

The pressure gauge assemblies listed below are available with fittings. The pressure gauge assembly is connected to

the air source where the air-supply hose from MSA is attached.

Part No.

Description

476734

Snap-Tite / Parker

476735

Foster

476737

Hansen

476738

CEJN

476739

Foster (w/ check valve)

476740

Hansen (w/ check valve)

Table 2 Choosing a Cartridge

Lens

Type

Type of Service

.090"

untempered

medium abrasive blasting

.090"

tempered

medium abrasive blasting and
added protection against glass
breakage due to rough handling.

.120"

untempered

heavy abrasive blasting

US

Abrasi-Blast Respirator

14

3 Assembling the Respirator

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Summary of Contents for Abrasi-Blast

Page 1: ...Operating Manual Abrasi Blast Respirator Order No 10089353 04 Print Spec 10000005389 B CR 800000041645 MSAsafety com ...

Page 2: ...de by MSA with respect to the product are voided if the product is not installed and used in accordance with the instructions in this manual Please protect yourself and your employees by following the instructions Please read and observe the WARNINGS and CAUTIONS inside For additional information relative to use or repair call 1 800 MSA 2222 during regular working hours MSA is a registered tradema...

Page 3: ...on E Final Hookup 19 5 Using the Respirator 20 5 1 Changing Cover Lenses 20 5 2 Supplied Air Respirators 21 5 3 Combination Duo Flo Type Respirators 21 6 Removing the Respirator 22 7 Cleaning and Disinfecting 23 8 Maintaining the Respirator 24 8 1 Inspection 24 8 2 Replacing the Filter Cartridge 25 9 The Lens Housing Assembly 26 9 1 Repositioning the Lens Housing Assembly 26 9 2 Positioning the As...

Page 4: ...14 Air Supply Hoses 35 14 1 Pressure Gauge Assembly 35 14 2 Air Source 35 14 3 Air Supply Hose 35 14 4 Interconnecting Air Supply Hoses 36 14 5 Quick Disconnects 37 US Abrasi Blast Respirator 4 ...

Page 5: ...iguration as specified by the manufacturer O Refer to User s Instructions and or maintenance manuals for information on use and maintenance of these respirators P NIOSH does not evaluate respirators for use as surgical masks S Special or critical user s instructions and or specific use limitations apply Refer to User s Instructions before donning S Special or Critical Users Instructions The wearer...

Page 6: ...or may constitute a flammability hazard 5 Be sure that no other equipment interferes with the respirator facial seal the user s ability to operate the respirator or other necessary means of mobility For more information on the SCBA use and performance standards consult the following publications ASTM F3387 Latest edition Standard Practices for Respiratory Protection ASTM International https www as...

Page 7: ... and or reconnected in a contaminated atmosphere This could result in serious injury or death depending on the toxicity of the contaminant involved It is the responsibility of the user to deter mine the potential risk and to take the necessary pre cautions which may include a requirement that NO disconnection or reconnection of air supply hoses be permitted in a contaminated atmosphere If in doubt...

Page 8: ...e following formula CMixture C1 C2 C3 The TLV of the mixture is found by using the following formula where T1 T2 T3 are the individual contaminant TLVs and C1 C2 C3 are the individual contaminant concentrations Only use these equations if the contaminants present are actually mixed Some substances do not mix and may be present separately for example in pockets or at different levels In that case t...

Page 9: ...pplied air mode of operation so long as the user is connected to an air line air source The air purifying mode of operation is entered automatically if the air line air source is disconnected or lost for any reason 2 1 All Configurations Constant Flow Adjustable Valves Adjustable valves allow the user to vary air flow within NIOSH required flow rates Duo Flo The Duo Flo valve used in conjunction w...

Page 10: ...re at the inlet of the MSA air supply hose thus ensuring that the air pressure is within the NIOSH approved range The gauge is supplied with a quick disconnect fittings to accommodate your particular air line system Part numbers for various MSA air supply hoses that can be used are listed in Table 8 Air Supply Hoses WARNING Particles and contaminants can enter an airline respirator system when air...

Page 11: ... male threaded end of the breathing tube through the hole until the hood seals around the first corrugation in the breathing tube b If the breathing tube is worn under the hood locate the 3 4 metal plug in the collar inside the hood and remove it by stretching the rubber grommet c Install the plug in the 3 4 hole in the front of the hood by stretching the rubber material d Push the threaded end of...

Page 12: ...er the lens housing so that the rubber forms a seal in the channel between the door frame and the lens housing assembly d Refasten the Velcro closure e Attach the breathing tube to the facepiece by threading the coupling nut onto the breathing tube Be sure the gasket is in the couple nut Hand tighten 3 Select the proper cover lens for the job NOTE Use Table 2 Choosing a Cartridge as a general guid...

Page 13: ... d Close the lens housing door to force the lens cartridge into place Pull on the door without flexing the latch to be sure the door is secured 4 If a filter cartridge is to be used see 8 2 Replacing the Filter Cartridge for instructions NOTE The filter cartridge is not approved for use on the combination Duo Flo type respirator 5 Disconnect the socket assembly from the valve connector body and th...

Page 14: ... Snap Tite Parker 476735 Foster 476737 Hansen 476738 CEJN 476739 Foster w check valve 476740 Hansen w check valve Table 2 Choosing a Cartridge Lens Type Type of Service 090 untempered medium abrasive blasting 090 tempered medium abrasive blasting and added protection against glass breakage due to rough handling 120 untempered heavy abrasive blasting US Abrasi Blast Respirator 14 3 Assembling the R...

Page 15: ... hose Adjust the regulator to deliver air at the pressures specified by the flow control device you are using Failure to follow these warnings can result in serious personal injury or death 4 1 Section A Constant Flow Supplied Air Type Respirators 1 Be sure that inlet air pressure is set per the following guidelines Gold Body High Pressure Systems Constant Flow Approved Air Supply Hose Length 8 30...

Page 16: ...to 4 3 Section C Air Tightness Test Face to Facepiece Seal 4 2 Section B Combination Duo Flow Type Respirators 1 Be sure that the inlet air pressure is set per the following guidelines Duo Flow Valve High Pressure System Approved Air Supply Hose Length 8 300 ft Approved inlet air pressure to maintain 4 CFM minimum to facepiece 35 40 psig Dual exhalation valve facepiece 32 37 psig 2 Reconnect the s...

Page 17: ... breathing tube is worn under the hood move your head from side to side as well as up and down to check for freedom of head movement If head movement is restricted or this method compromises the face to facepiece seal in any way wear the breathing tube on the outside of the hood only Failure to follow this warning can result in serious personal injury or death Supplied Air Respirators Only Place t...

Page 18: ...etermine the amount of protection the respirator will provide while being used in the air purifying mode Qualitative Test If the wearer of the respirator passes a qualitative fit test the respirator can be worn in contaminant particulate concentrations up to the maximum use listed in Table 3 Maximum Use Concentration Quantitative Test If the wearer of the respirator performs a quantitative fit tes...

Page 19: ...hten Pull on the air supply hose to test the connection 5 Duo Flo Type Respirators Connect the socket assembly to the Duo Flo valve when it is desired to switch from the air purifying mode to the supplied air mode of operation All Abrasi Blast Respirators are equipped with a hood to provide limited protection to the user s head and neck from rebounding abrasive materials The hood also provides lim...

Page 20: ...erial is classified as self extinguishing as required by Federal Standard 191 Method 5910 Do not contact organic based solvents which may attack the hood material air supply hose or other plastic components A partial list of such solvents is as follows Benzene Methyl Ethyl Ketone MEK Ethylene Dibromide Tetrahydrofuran THF Ethyl Acrylate Acetonitrile Isobutyl Amine Petroleum Based Solvents Return t...

Page 21: ...required minimum 4 cfm rate when the proper pressure is used at the inlet of the air supply hose from MSA 5 3 Combination Duo Flo Type Respirators Converting to Different Modes of Operation 1 When using the respirator in the air purifying mode of operation the supplied air mode is entered when an air line air supply is connected to the Duo Flo valve The air line inlet pressure must be 35 40 psig f...

Page 22: ...To remove the hood air supply system and facepiece return to fresh air and clean the outer surfaces of the respirator before removing the facepiece NOTE On the waist length model unsnap the waiststrap 2 Lift the back of the hood over your head 3 Place your finger tips behind the headstraps 4 Place your thumbs on the buckles 5 Pull the top of the buckles away from your head NOTE Repeat as needed to...

Page 23: ...ion retains its germicidal efficiency in hard water to inhibit thegrowth of bacteria and will not deteriorate rubber plastic glass or metal parts Refer to the label to prepare the Confidence Plus Germicidal Cleaner If the Confidence Plus Germicidal Cleaner is not used wash components in a mild cleaning solution and make sure to rinse them thoroughly Submerge the facepiece in a germicide solution f...

Page 24: ...ing the parts NOT to perform as designed and approved 8 Maintaining the Respirator WARNING Only trained personnel are to maintain the respirator Use only genuine MSA parts Do not make repairs or design modifications other than as recommended by MSA or the NIOSH approval will be voided Failure to follow this warning can result in serious personal injury or death Regular maintenance and inspection o...

Page 25: ...e of operation Service time can be extended by performing an evaluation in the specific workplace setting that demonstrates a that the extended use will not degrade the filter efficiency below 95 or b that the total mass loading of the filter is less than 200mg When the face piece is properly adjusted the following conditions are indications that the filter has served its useful life and should be...

Page 26: ...bottom The lens housing may be reversed so that the door opens with the hinge at the top 9 2 Positioning the Assembly 1 Remove the lens housing assembly from the hood 2 Loosen the two lens retaining screws on the facepiece 3 Remove the lens retaining rings and the retaining lens housing assembly from the facepiece US Abrasi Blast Respirator 26 9 The Lens Housing Assembly ...

Page 27: ...tainer ring 2 Starting at the top stretch and push the rubber ring of the nosecup under the plastic retainer ring of the speaking diaphragm assembly 3 Continue the stretching the nosecup ring and work it into place 10 2 Spectacle Kit The spectacle kit is designed to be used by people who wear glasses The temple bars of conventional glasses stick through the sealing edge of a full facepiece and pre...

Page 28: ... be in the air supply When odors of vapors or gases become noticeable or when breathing resistance becomes uncomfortable the cartridge must be replaced The P N 476089 Cartridge Holder is approved for use with the supplied air configuration of the Abrasi Blast Respirator only when it is equipped with the following filters GMA Cartridges approved for respiratory protection against not more than 1000...

Page 29: ...der halves e The bottom seal P N 459035 and o ring P N 637830 on the cartridge holder assembly should be inspected after each use and monthly If damage is present or either of the seals are missing they must be replaced f Screw the filter cartridge in until it is firmly seated on the gasket WARNING Protection voided if sealing gasket is misaligned damaged or missing Failure to follow this warning ...

Page 30: ...ing nut to the holder male fitting e Position the holder to fit comfortably on your hip 10 4 Abrasi Blast Respirator Parts Consult the MSA Safety Equipment Catalog for parts and part numbers US Abrasi Blast Respirator 30 10 Accessories ...

Page 31: ...11 Abrasi Blast Hood Styles and Accessories 31 Abrasi Blast Respirator US 11 Abrasi Blast Hood Styles and Accessories ...

Page 32: ...asive blasting 473800 09 thick tempered 3 Medium abrasive blasting with added protection against breakage due to rough handling 10013407 12 thick untempered laminated 1 Heavy abrasive blasting 473802 12 thick untempered 2 layers laminated 2 Heavy abrasive blasting 481742 12 thick untempered 3 layers laminated 3 Heavy abrasive blasting US Abrasi Blast Respirator 32 12 Lens Cartridges ...

Page 33: ...oster Steel 471814 474025 Hansen Brass 471815 474026 Foster Brass 473828 474027 Table 6 Cartridge Assembly Cartridge Assembly 476089 Holder 464031 GMA Cartridge Package of 10 815175 815175 P100 Cartridge Package of 10 13 2 Combination Duo Flo Quick Disconnect Components Complete Duo Flo Valve Assembly with Plug and Socket Assembly Snap Tite Parker Aluminum 466077 Snap Tite Parker Brass 476919 Snap...

Page 34: ...embly with Plug and Socket Assembly Locking Type Snap Tite Parker Aluminum locking 480814 Snap Tite Parker Brass locking 480816 Snap Tite Parker Stainless Steel locking 480815 CEJN Chrome Locking 480813 US Abrasi Blast Respirator 34 13 Flow Control Devices ...

Page 35: ...l Grade D Breathable Air 14 3 Air Supply Hose NOTE All air supply hoses listed below are 3 8 in diameter hose ID WARNING MSA air supply hoses have various temperature limitations Do not use when inlet air temperature exceeds the limits specified for each hose material Failure to follow this warning can result in serious personal injury or death Table 8 Air Supply Hoses Part Number Hose Length ft M...

Page 36: ...ections of approved air supply hose WARNING Do not use non locking quick disconnects to interconnect air supply hoses Use only the threaded connector 3 4 16 UNF or the locking type quick disconnects listed Failure to follow this warning can result in serious personal injury or death The CEJN chrome and SNAP TITE Parker locking quick disconnects shown below may be used to interconnect air supply ho...

Page 37: ... to interconnect lengths of MSA air supply hose Air supply hoses can be interconnected up to a maximum length of 300 feet Up to 12 sections of hose can be used to make up the maximum working length of hose Locking quick disconnects easily connect by pushing the plug and socket together To separate the plug and socket must first be pushed together then the sleeve retracted from the plug 14 5 1 Quic...

Page 38: ...US Abrasi Blast Respirator 38 14 Air Supply Hoses ...

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