MSA Safety Abrasi-Blast Maintenance

MSA Safety Abrasi-Blast Maintenance
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MSA Safety 486303 Abrasi-Blast Supplied Air Respirator Hood
Abrasi-Blast™
Respirator
OPERATION AND MAINTENANCE INSTRUCTIONS
!
WARNING
This manual must be read carefully by all persons who have or will have the responsibility for using or servicing the product. Like any complex piece of equipment, the AbrasiBlast Respirator from MSA will perform as designed only if it is used and serviced
according to the instructions. Otherwise, it could fail to perform as designed, and persons who rely on this respirator could sustain serious personal injury or death.
The warranties made by MSA with respect to the product are voided if the product is not
installed, used and serviced 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.
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DESCRIPTION
TABLE OF CONTENTS
NIOSH Approval Information . . . . . . . . . . . . . . . . . . . . . .2
Special or Critical Users Instructions . . . . . . . . . . . . . . . .2
Respirator Use Limitations . . . . . . . . . . . . . . . . . . . . . . . .2
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Unpacking & Inspection . . . . . . . . . . . . . . . . . . . . . . . . . .7
Component Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Donning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Air Tightness Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Using the Respirator . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Cleaning and Disinfecting . . . . . . . . . . . . . . . . . . . . . . . .17
Maintaining the Respirator . . . . . . . . . . . . . . . . . . . . . . .17
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Abrasi-Blast Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Hood Styles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Facepiece Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . .24
Flow Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Air Supply Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Quick Disconnects . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
NIOSH APPROVAL INFORMATION
jurisdiction over the wearer.
3. Do not wear protection against substances with poor
warning properties or those which generate high rates
or reaction with sorbent material in the canister.
4. If using the Duo-Flo combination type Abrasi-Blast
Respirator, make certain conditions of exposure are
within the limits for which the device is approved.
5. Users must wear suitable protective clothing and precautions must be taken so that the respirator is not worn
in atmospheres that may be harmful to the device (see
page 4).
6. This approval applies only when the device is supplied
with respirable air through 8 to 300 feet of air supply
hose within the pressure range of 65 to 85 pounds per
square inch gage.
7. Below 32°F add the following nosecups to the facepiece:
a. Ultravue nosecups: 471539, 471540, or 471541.
b. Ultra Elite® nosecups: 495188, 495189 or 7-901-1.
Remove the 805018 or 7-1384-1 baffle before
installing nosecup. The baffle must be used if
nosecup is not in place.
8. A maximum of 12 sections of air supply hose may be
used in making up the maximum working length of
hose. Each section of coiled hose, regardless of
length, is considered 50 feet in length (max.: 6 sections).
Cautions and Limitations
A- Not for use in atmospheres containing less than
19.5% oxygen.
B- Not for use in atmospheres immediately dangerous to
life or health.
C- Do not exceed maximum use concentrations established by regulatory standards.
D- Airline respirators can be used only when the respirators are supplied respirable air meeting the requirements of CGA G-7.1 Grade D or higher quality.
E- Use only the pressure ranges and hose lengths specified in the users instructions.
G- If airflow is cut off, switch to filter and/or cartridge or
canister and immediately exit to clean air.
H- Follow established cartridge and canister change
schedules or observe ESLI to ensure that cartridges
and canisters are replaced before breakthrough occurs.
J- Failure to properly use and maintain this product could
result in injury or death.
L- Follow the manufacturers users instructions for changing cartridges, canisters and/or filters.
M- All approved respirators shall be selected, fitted, used,
and maintained in accordance with MSHA, OSHA, and
other applicable regulations.
N- Never substitute, modify, add, or omit parts. Use only
exact replacement parts in the configuration as specified by the manufacturer.
O- Refer to users instructions, and/or maintenance manuals for information on use and maintenance of these
respirators.
S- Special or critical users instructions and/or specific
limitations apply. Refer to users instructions before
donning.
RESPIRATOR USE LIMITATIONS
Maximum Use Concentration
Do not exceed ANY of the applicable maximum use concentrations listed in the table on the following page.
Mixtures of Contaminants —
NIOSH allows this respirator to be used for protection
against a mixture of contaminants that are present simultaneously or used alternately against one contaminant then
another (using the same cartridges or filters) if the mixture
meets the following conditions:
a. The cartridge/filter must be approved for all contaminants present.
b. Contaminants present simultaneously must be
below IDLH levels for the specific contaminants. If
S - SPECIAL OR CRITICAL USERS INSTRUCTIONS
The wearer must comply with the following MSA respirator use limitations:
1. The limitations outlined in the applicable NIOSH
approval.
2. Any applicable limitation contained in a standard established by a regulatory agency (such as OSHA) with
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DESCRIPTION
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:
any one contaminant in the mixture exceeds the
IDLH concentration then the entire mixture must be
treated as IDLH and the respirator cannot be used
(except for escape from particulates with appropriate filter).
Time Use Limitation
Canisters with an N95 filter shall be limited to 8 hours of
use (continuous or intermittent) against particulates.
[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 200 mg.]
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, the lowest TLV of the substances present must be used to determine the appropriate respirator
category for protection against all contaminants present.
Exposure Limits
A listing of acceptable exposure limits from the following
sources.
GENERAL DESCRIPTION
•
•
•
•
American Conference of Government Industrial
Hygienists (ACGIH)
Occupational Safety and Health Administration
(OSHA)
National Institute for Occupational Safety and Health
(NIOSH)
American Industrial Hygiene Association (AIHA)
Abrasi-Blast Respirators are approved by the National
Institute for Occupational Safety and Health (NIOSH). The
Abrasi-Blast Respirator is available in the following basic
configurations:
Configuration #1:
Type CE, supplied-air respirator with low-pressure flow
control valve
Exposure Limits for Mixtures
The American Conference of Governmental Industrial
Hygienists (ACGIH) publishes the following information to
determine the TLV of a mixture.
Configuration #2:
Type CE, supplied-air respirator with high-pressure flow
control valve.
First, determine the total concentration of the chemical
mixture (CMixture) from the individual contaminant concentrations (C1, C2, C3 ...) using the following formula:
Configuration #3:
Combination Type CE: Supplied-air respirator and airpurifying respirator with Duo-Flo valve:
P100 Filter Cartridge
CMixture = C1 + C2 + C3 + ...
RESPIRATOR TYPE
RESPIRATOR USE
Routine Use in Air-Supplied
Mode - Including Entry
Continuous Use and
Non-Emergency Egress
Configuration #4:
Type CE, pressure-demand supplied-air respirator with
belt-mounted pressure demand regulator.
RESPIRATORS WITH
PARTICULATE FILTERS
OR FILTER
CARTRIDGES
Type CE, supplied-air respirators (Configurations 1, 2, and 3,
above) are approved for use in atmospheres not immediately dangerous to life or health:
• 1,000 Times Exposure
Limit
• IDLH
“Not immediately dangerous to life or health” means any
hazardous atmosphere which may produce physical discomfort immediately, chronic poisoning after repeated
exposure, or acute adverse physiological symptoms after
prolonged exposure (Title 42 CFR, Part 84, Subpart A, Par.
84.2(x)).
Routine Use in Air-Purifying • 50 Times Exposure
Mode - Including Entry,
Limit
Continuous Use, Non• IDLH
Emergency Egress and/or
Moving from Station-toStation
Emergency Escape in AirPurifying Mode
Type CE, Combination respirator (Configuration 4,) is
approved for use against specific contaminants at concentrations not immediately dangerous to life or health.
• Unlimited
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NOTES
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ASSEMBLY
The low and high pressure flow-control valves are available in adjustable and non-adjustable versions. Adjustable
valves allow the user to vary air flow within NIOSHrequired flow rates.
All Abrasi-Blast Respirators are equipped with a heavy
rubber hood to provide limited protection to the user’s
head and neck from rebounding abrasive materials. The
hood also provides limited protection to the facepiece lens
by using removable glass lens covers. For additional specifications of Type “CE” respirators, see Title 42 CFR, Part
84, Subpart J.
The user breathes through the filter or canister until connecting the air-line. The supplied-air mode of operation
may be used for long periods of time without depleting
the filter or canister.
Abrasi-Blast Respirators are available in waist, shoulder,
and parka models and may be used with the breathing
tube outside or under the hood.
The air-purifying mode of operation also may be used for
extended periods of time when an air source is not available. During use, the respirator remains in the supplied-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.
The Abrasi-Blast Respirator may be ordered in numerous
configurations. To identify the configuration you have
received, match the part numbers of your unit with those
listed on page 23.
Waist Model
Tube Out
Waist Model
Tube Under
You may wish to make a permanent record of your complete system as an aid for ordering replacement parts.
Use the listing below to keep a record of your configuration in this manual.
Assembly
Hood
Cover Lens
Facepiece
Flow Control Valve
Air-Supply Hose
Shoulder Model
Tube Out
Part No.
_________
_________
_________
_________
_________
Shoulder Model
Tube Under
The Abrasi-Blast Respirator has been approved by NIOSH
with adjustable valve-connectors, nonadjustable valveconnectors, and pressure demand regulator. During abrasive blasting operations, the facepiece lens is protected
by two to four flat-glass cover lenses. Each cover lens is
removed by two pull-tabs when it becomes so scratched
that vision is reduced. Respirator approval requires the use
of the proper length of approved air-supply hose,
approved fittings, and a respirable air source.
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NOTES
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ASSEMBLY
a. If the breathing tube
is worn outside the
hood, locate the
3/4” hole in the
front of the hood.
Push the male
threaded end of the
breathing tube
through the hole
until the hood seals
around the tube at
the first to sixth corrugation in the breathing tube.
REQUIRED TOOLS
Abrasi-Blast Respirator systems may be assembled with
standard tools and materials following good work practices. The assembly tips below may help:
1. All tapered pipe connections should be wrapped with
pipe sealing tape (applied one thread back from the
end) before assembly.
2. Open-End Wrenches and Slip-Joint Pliers should be
used to tighten all threaded connections, unless specifically noted otherwise.
3. Test all threaded connections under pressure with a
commercial leak-test solution or soapy water. If a leak
is detected, locate the source and correct it before
using the respirator.
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.
UNPACKING & INSPECTION
The Abrasi-Blast Respirator consists of the following subassemblies:
• hood
• facepiece
• breathing tube
• support belt
• collar
• lens housing assembly
• waist strap
• adjustable valve-connector
• air-supply hose socket assembly
• cover lens cartridge
c. Install the plug in
the 3/4” hole in the
front of the hood by
stretching the rubber material.
Thoroughly inspect the respirator and all components
when received and before using. Read and observe all
NIOSH approval limitations as they apply to using the
Abrasi-Blast Respirator.
COMPONENT ASSEMBLY
d. Push the threaded
end of the breathing
tube through the
hole in the collar
until the rubber
grommet seals
around the breathing tube at the third
corrugation.
Follow the steps below to assemble your respirator. Do
not don the respirator until you have completed all steps
in this section.
1. Install the breathing tube:
NOTE: The breathing tube may be worn either outside or
under the hood. Follow the instructions that apply to
assemble the breathing tube.
e. When using the parka hood, P/N 807592, push the
threaded end of the breathing tube through the
elastic collar located on the waist area of the hood.
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ASSEMBLY
2. Assemble the facepiece to the hood and breathing
tube:
a. Unfasten the Velcro closure on the collar and insert
the facepiece into the hood. (Parka hood, P/N
807592, does not have a collar).
a. To open the lens
housing door, grasp
the top corner of
the plastic door and
pull it away from the
hood.
b. Align the lens housing assembly with
the large opening in
the hood.
b. Open the package of protective lens cartridges.
c. Insert the lens cartridge into the lens
housing. The cartridge can be
installed so that the
pull-tabs are either
at the top or the
bottom of the lens
housing.
c. Stretch the rubber
front of the hood
over the lens housing so that the rubber forms a seal in
the channel
between the door
frame and the lens
housing assembly.
NOTE: Be sure the 2 pull-tabs are not caught in the lens
door opening.
Lens
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 coupling nut. Handtighten.
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
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, refer to page 24.
NOTE: The filter cartridge is not approved for use on the
combination Duo-Flo type respirator.
3. Install the protective lens cartridge. Select the proper
cover lens for the job. (Use the chart on this page as a
general guide to choose the cartridge.) A thinner cover
lens may not give satisfactory service life because
heavy abrasive may wear holes in the lens.
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Type
5. Disconnect the socket
assembly from the
valve-connector body
and thread the socket
assembly on the airsupply hose.
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ASSEMBLY
6. Connect the opposite
end of the air-supply
hose to a respirable air
source.
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
476735
476736
476737
476738
476739
476740
Snap-Tite
Foster
Duff-Norton
Hansen
CEJN
Foster (w/check valve)
Hansen (w/check valve)
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NOTES
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DONNING
source.
5. Turn the back of the hood and collar “wrong-sideout,” exposing the facepiece headstraps. The Velcro
strip on the collar does not have to be unfastened
unless a protective cap is worn.
6. Adjust the facepiece headstraps so the end tabs are at
the buckles.
DONNING
This section includes the necessary steps to don and
check-out the respirator. These steps must be followed
each time the respirator is used.
WARNING
•
•
•
•
•
7. Grip the facepiece
between your thumb
and fingers with both
hands. Insert your chin
into the lower part of
the facepiece. Pull the
facepiece headstraps
over your head.
Smooth the straps flat
against your head.
This respirator must be used only by trained personnel and according to MSA’s instructions.
Do not use the respirator as an underwater device.
Wear impermeable protective clothing if exposed
to poisons which can be absorbed by the skin.
Wear appropriate protective clothing to protect your
body from rebounding abrasive material.
This system must be supplied with respirable air.
See ANSI Z86.1-1973 [Compressed Gas Association
Specification G-7.1 for Quality Verification Level
(Grade D) Gaseous Air].
a. Support the facepiece by holding the breathing
tube at the coupling nut assembly with one hand.
b. Tighten the lower (neck) straps. Pull the straps
straight back, not out.
Misuse can result in serious personal injury or death.
A. Supplied-Air Type Respirators
1. Be sure that inlet air pressure is set to agree with the
valve-connector you are using. Use the information in
the chart as a guide.
WARNING
The air source must provide at least 4 cubic feet per
minute (cfm) to each respirator, and maintain the
required inlet pressure range specified in this manual
for the specific flow control device selected. If the air
supply pressure is greater than 15 psig (BLACK body)
or 40 psig (GOLD body), be sure to use a pressure regulator between the air supply and air-supply hose.
Adjust the regulator to deliver air at the pressures
specified by the valve-connector you are using.
Misuse can result in serious personal injury or death.
c. Tighten the side
(temple) straps.
d. Tighten the front (forehead) strap to position the
lens for best vision and to support the weight of
the facepiece.
GOLD BODY
HIGH PRESSURE SYSTEMS CONSTANT FLOW
2. Reconnect the socket
assembly to the flow
control valve (valveconnector or regulator.
APPROVED AIR-SUPPLY HOSE LENGTH: 8 - 300 FT.
APPROVED INLET AIR PRESSURE TO MAINTAIN 4 CFM MINIMUM TO
FACEPIECE: 35 - 40 PSIG
BLACK BODY
LOW PRESSURE SYSTEMS CONSTANT FLOW
APPROVED AIR-SUPPLY HOSE LENGTH: 8 - 50 FT.
APPROVED INLET AIR PRESSURE TO MAINTAIN 4 CFM MINIMUM TO
FACEPIECE: 10 - 15 PSIG
3. Slide the belt clip of the flow control over the support
belt. Don the support belt and position the flow control so that it will be on your left side.
4. Turn the air supply on. Check for leaks with a commercial leak detection solution or soapy water.
Tighten connections as required. Turn off the air
8. Skip section B, below. Refer to C. Air-Tightness Test
(Face-to-Facepiece Seal).
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DONNING
B. Combination Duo-Flo Type Respirators
1. Be sure that inlet air pressure is set to agree with the
valve-connector you are using. Use the information
below as a guide.
8. Grip the facepiece
between your thumb
and fingers with both
hands. Insert your chin
into the lower part of
the facepiece. Pull the
facepiece headstraps
over your head.
Smooth the straps flat
against your head.
WARNING
The air source must provide at least 4 cubic feet per
minute (cfm) to each respirator, and maintain an inlet
pressure within the range of 35-40 psig for single
exhalation valve masks and 32-37 psig for dual exhalation valve masks. If the air supply pressure is greater
than 40 psig (37 psig for dual exhalation valve masks),
be sure to use a pressure regulator between the air
supply and air-supply hose. Adjust the regulator to
deliver air at the maximum pressure according to
facepiece in use. Misuse can result in serious personal
injury or death.
a. Support the facepiece by holding the breathing
tube at the coupling nut assembly with one hand.
b. Tighten the lower (neck) straps. Pull the straps
straight back, not out.
DUO-FLO 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
c. Tighten the side
(temple) straps.
2. Reconnect the socket assembly to the Duo-Flo valve.
3. Slide the Duo-Flo valve belt clip over the support belt.
Don the support belt and position the Duo-Flo valve so
that it will be on your left side. Attach the appropriate
filter or canister to the coupling nut at the bottom of
the Duo-Flo valve. Remove the canister bottom seal.
4. Turn the air supply on. Check for leaks with a commercial leak detection solution or soapy water.
Tighten connections as required. Disconnect the socket assembly from the Duo-Flo valve. If the air-line is to
remain in a contaminated atmosphere, this leak test
should be performed on respirators used for the first
time and periodically to maintain the respirator in good
working condition.
5. Connect the breathing tube to the opening at the top
of the Duo-Flo tube.
6. Turn the back of the hood and collar “wrong-sideout,” exposing the facepiece headstraps. The Velcro
strip on the collar does not have to be unfastened
unless a protective cap is worn.
7. Adjust the facepiece headstraps so the end tabs are at
the buckles.
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d. Tighten the front (forehead) strap to position the
lens for best vision and to support the facepiece
weight.
C. Air Tightness Test (Face-to-Facepiece Seal)
CAUTION
If the 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.
1. Supplied-Air Type
Respirators Only:
Place the palm of your
hand firmly over the
breathing tube coupling
nut or place your
thumb over the breathing tube opening inside
the coupling nut.
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DONNING
Respirator fitting test and protection factors are explained
fully in ANSI Z88.2, “Practices for Respiratory Protection,”
published by the American National Standards Institute.
2. Combination Type Respirators Only:
Place your hands tightly over the inlet(s) of the filter.
3. Inhale gently so that the facepiece collapses against
your face. Hold your breath for 10 seconds.
4. The facepiece should remain collapsed if the seal is
air-tight.
5. If the facepiece does not remain collapsed, readjust
the head harness straps and re-test.
6. If an air-tight seal cannot be obtained and leakage is
not caused by facial seal leakage, check the facepiece
and breathing tube for leaks. (See Maintaining the
Respirator). Locate the problem and correct before
using the respirator.
E. Final Hookup:
1. If wearing a protective cap, see Step 2. Otherwise,
proceed as follows:
a. Pull the respirator
collar down around
your neck. The collar is designed to
stretch over your
shirt or coverall collar to help seal out
dust.
WARNING
This device may not seal properly with your face if you
have a beard, gross sideburns or similar physical
characteristics (see ANSI Z88.2-1980). An improper
facial seal may allow non-respirable air to leak into the
facepiece, reducing or eliminating respiratory protection. If such conditions exist, YOU, the user, assume
all risks of respiratory injury or death which may
result. The face-to-facepiece seal must be tested
before each use.
b. Pull the back of the hood down in place on your
shoulders. On the waist-length model, attach the
waiststrap loosely to minimize restrictions to head
movement.
2. If wearing a protective
cap, you may wish to
either remove and
reverse the suspension
so the bill of the cap is
in the back or wear it in
the standard manner
with the bill in front.
D. Respirator Fitting Tests
A qualitative or quantitative respirator fitting test must be
carried out for each wearer of a combination air-supplied
and air purifying type respirator. The test shall be performed in the air-purifying mode of operation and is necessary in order to determine 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
and/or organic vapor) concentrations up to the maximum
use concentration listed below.
NOTE: A protective cap cannot be used with the duck
cloth hood.
Quantitative Test
If the wearer of the respirator performs a quantitative fit
test, the respirator can be worn in contaminant (particulate
and/or organic vapor) concentrations determined by the
results of the test, but not to exceed the maximum use
concentration listed below.
a. Unfasten the Velcro
strip on the collar.
Don the cap with
the bill to the rear or
front.
In addition to the above limitations, the wearer must not
exceed the limitations listed in the applicable NIOSH
Approval or any maximum use concentration controlled by
OSHA regulations.
b. Pull the collar down around your neck and fasten
the Velcro strip on the collar. The collar should be
over your shirt or coverall to help seal out dust.
c. Pull the back of the hood down in place on your
shoulders. On the waist-length model, attach the
waiststrap loosely to minimize restrictions to head
movement.
WARNING
The user assumes all risks of death or serious bodily
injury which can result if a fitting test is not performed, or if the respirator limitations are not followed.
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DONNING
3. Turn the air-supply on.
4. Supplied-Air Type Respirators:
Connect the breathing tube coupling nut to the valve
connector. Hand-tighten. Pull on the air-supply hose
to test the connection.
5. Combination 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.
Facepiece Type
Half-mask facepiece
Full facepiece
TAL 113 (L) Rev. 2 - 818366
Maximum Use Concentration
10 times the TLV for the contaminant
100 times the TLV for the contaminant
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USING THE RESPIRATOR
USING THE RESPIRATOR
WARNING
•
•
•
•
*
*
*
*
*
*
*
*
•
a. To open the lens
housing door, grasp
the top corner of
the plastic door and
pull it away from the
hood.
DO NOT use an Abrasi-Blast Respirator if air contaminants are unknown, immediately dangerous to
life or health, or you cannot escape without respiratory protective equipment. The supplied-air AbrasiBlast Respirator configuration does not afford respiratory protection if the air supply fails.
DO NOT use the Duo-Flo Combination configuration
of the Abrasi-Blast Respirator in atmospheres containing less than 19.5 percent oxygen, in atmospheres exceeding the limits for which the filter will
provide protection.
DO NOT use near flame or hot metal, because
hood material may burn. The hood material 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:
b. Open the package of protective lens cartridges.
c. Insert the lens cartridge into the lens
housing. The cartridge can be
installed so that the
pull-tabs are either
at the top or the
bottom of the lens
housing.
Benzene
Methyl Ethyl Ketone (MEK)
Ethylene Dibromide
Tetrahydrofuran (THF)
Ethyl Acrylate
Acetonitrile
Isobutyl Amine
Petroleum-Based Solvents
NOTE: Be sure the 2 pull-tabs are not caught in the lens
door opening.
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.
Return to a safe atmosphere and discard the respirator immediately if discoloration, crazing, blistering, cracking or other deterioration of the hood
material, air-supply hose or other plastic components is observed.
Lens
Misuse can result in serious personal injury or death.
Changing Cover Lenses
The outer cover lens should be removed when it gets dirty
or scratched. To change the cover lens, grasp one of the
pull-tabs on the corners of the lens and pull straight out.
The last protective lens in the cartridge has no pull-tab. It
is to be kept over the primary lens to protect its surface
from abrasive materials.
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
•
To install a protective lens cartridge:
1. Select the proper cover lens for the job. (Use the chart
on this page as a general guide to choose the cartridge.) A thinner cover lens may not give satisfactory
service life because heavy abrasive may wear holes in
the lens.
•
Select the proper cover lens for the job. A thinner
lens may not last long, because heavy abrasives
may cause cracks in the lens.
DO NOT remove a lens cartridge during abrasive
work. The primary lens may be polycarbonate and
will scratch easily. If the primary lens is damaged,
the entire lens housing assembly must be
replaced.
WARNING
•
DO NOT remove the facepiece in a contaminated
area to replace the lens cartridge. The contaminant
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USING THE RESPIRATOR
will remain in the surrounding air after abrasive
blasting. Return to a safe atmosphere before removing the respirator. Misuse can cause inhalation of
the contaminant with resultant serious respiratory
injury or death.
WARNING
Return to fresh air immediately if:
• Leakage is detected by smell, taste, or eye, nose
or throat irritation.
• High breathing resistance is encountered.
• Any feeling of nausea, dizziness or ill-being develops.
Misuse can result in serious personal injury or death.
Adjusting Air Flow on Adjustable Valve-Connectors
Removing the Respirator
1. 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.
2. Unsnap the waist-strap on the waist-length model.
1. Push in on the adjusting knob, then turn the
knob.
3. Lift the back of the
hood over your head.
2. Turn the knob fully
clockwise (up) for minimum air flow.
4. If you are wearing a protective cap, separate the Velcro
strips on the hood collar and remove the cap.
5. Place your finger tips
behind the headstraps.
Place your thumbs on
the buckles. Pull the
top of the buckles
away from your head.
Repeat as needed to
loosen the headstraps.
Grip the facepiece by
the inhalation housing.
Pull the facepiece out,
then up over your
head. To remove the facepiece quickly, pull the facepiece away from your face, then up over your head.
3. Turn the knob fully counter-clock-wise (down) for maximum air flow.
NOTE: The adjusting knob may vary air flow, but cannot
reduce flow below the required minimum 4 cfm rate when
the proper pressure is used at the inlet of the air-supply
hose from MSA.
Converting to Different Modes of Operation on DuoFlo Type
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 for single exhalation valve facepieces and 32-37 psig for
dual-exhalation valve facepieces in order to maintain 4
cfm to the facepiece.
2. When using the respirator in the supplied-air mode of
operation, the air-purifying mode is entered when the
air-line air supply is disconnected from the Duo-Flo
valve. The air-purifying mode is entered “automatically” if the air-line source is lost for any reason.
TAL 113 (L) Rev. 2 - 818366
6. Disconnect the air-line quick-disconnect.
7. Turn the air supply off.
8. Disconnect the breathing tube from the flow control
valve.
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MAINTAINING THE RESPIRATOR
CLEANING AND DISINFECTING
CAUTION
•
The respirator must be cared for after each use and on a
regular maintenance schedule. Thorough maintenance
includes cleaning and disinfecting, as well as inspection
of components and parts replacement.
1. Remove excess dust from the respirator.
2. Unlatch the lens door.
•
DO NOT force-dry with heat. Temperatures above
110˚ F may distort or damage parts of this respirator.
The primary facepiece lens may be polycarbonate
and may be scratched if rubbed with coarse dry
cloth or paper towels.
h. Reassemble the respirator and store in a cool, dry
place out of direct sunlight. Do not store the respirator or components within or near an area where
respirator or components can or might be exposed
to substances that will or might attack any part,
causing the parts NOT to perform as designed and
approved.
3. Grasp the foam frame
edge of the lens cartridge and carefully pull
the cartridge out.
MAINTAINING THE RESPIRATOR
CAUTION
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.
4. Remove the used protective lenses from the hood
pocket and dispose of them properly.
5. Clean and disinfect the respirator components after
separating them.
a. Unzip the collar. The collar may be cleaned in a
washer and dryer similar to a conventional garment
(110˚ F maximum water and air temperature).
b. Disconnect the breathing tube from the facepiece.
c. Separate the facepiece from the hood. Stretch the
rubber front of the hood over the lens housing
assembly and remove the facepiece.
d. Prepare the cleaner, follow the instructions with the
Confidence Plus® Cleaning Solution (P/N 10009971).
NOTE: If the Confidence Plus Cleaning Solution is not
used, prepare in accordance with the instructions
provided with cleaning products.
e. Submerge the facepiece, hood, and support belt in
the solution. Scrub gently until clean.
Regular maintenance and inspection of components of the
respirator are necessary to assure proper protection. In
addition, the NIOSH approvals require that you regularly
inspect this unit. Parts found to be worn or damaged must
be replaced. See the parts list for correct replacement part
numbers.
WARNING
Inspect the respirator after it has been cleaned and
sanitized. The respirator must be inspected before it is
used again. Misuse can expose the user to contaminants, resulting in serious personal injury or death.
Inspection
CAUTION
Alcohol should not be used as a germicide. It may deteriorate the rubber.
f. Rinse facepiece and components in clean, warm
(110°F), preferably drain to remove the solution,
then air-dry.
1. Check the hood for
tears or holes.
CAUTION
If not rinsed thoroughly, cleaning agent residue may
irritate the wearer’s skin.
g. Use a damp cloth or sponge saturated with the
solution to wipe the breathing tube.
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MAINTAINING THE RESPIRATOR
WARNING
Protection voided if sealing gaskets are not in their
proper place. Misuse can result in serious personal
injury or death.
2. Check that the metal
plug is inserted in the
grommet in either the
hood or collar.
The bottom seal on the canister should be replaced
after each use.
Repositioning the Lens Housing Assembly
The standard position of the assembly in the facepiece is
with the hinge at the bottom. The lens housing may be
reversed so that the door opens with the hinge at the top.
To reposition the assembly:
3. Install a new lens cartridge.
4. Inspect the breathing
tube for tears, cracks
or other signs of wear
or damage.
1. Remove the lens housing assembly from the
hood.
5. Remove the facepiece
exhalation valve cover
and check the valve(s)
for tears, holes or
cracks indicating wear
or damage. Check the
exhalation valve seat to
assure that it is free
from debris and has no
cracks, scratches or
other signs of damage.
Replace the cover and
spin it to be sure it is
secure.
2. Loosen the two lens
retaining ring screws
on the facepiece.
Replacing the Filter, Canister and Cartridge
(Air-Purifying Configurations)
The length of time the P100 filter or canister will give protection depends on the concentration of the contaminant
and the rate of breathing while in the air-purifying mode of
operation.
P100 Filter
Cartridge
3. Remove the lens
retaining rings and the
lens housing assembly
from the facepiece.
Excessive Breathing
resistance upon
inhalation
The wearer should return immediately to fresh air if these
conditions develop. Remove the exhausted filter or canister and examine the gasket in the coupling nut making
sure it is properly in place before attaching a suitable new
canister.
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MAINTAINING THE RESPIRATOR
4. Reverse the lens housing assembly so that
the door hinge is at the
top.
5. Re-install the lens retaining rings and screws.
6. Perform the Air Tightness Test. (See Air Tightness Test
section).
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NOTES
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ACCESSORIES
4. Adjusting the spectacles:
ACCESSORIES
Nosecup
The nosecup is used with the Ultravue (full) facepiece to
reduce lens fogging caused by high humidity or temperatures below 32°F. Nosecups are available in small (P/N
471710), medium (P/N 471711), or large (P/N 471712).
a. To move the spectacles closer to your
face, pull the frame
prongs out of the
rubber block.
Installing the nosecup:
1. Place the nosecup in the facepiece and position it so
its rubber ring faces toward the plastic retainer 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.
b. To move the spectacles farther from
your face, push the
frame prongs into
the rubber block.
3. Continue stretching the nosecup ring and work it into
place.
c. To move the spectacles up or down, slide the rubber block up or down on the support arms.
Spectacle Kit (P/N 454819)
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 prevent a proper seal. The kit includes the support assembly,
a rubber block, and the spectacle frame. Prescription
lenses can be obtained locally or through MSA.
Filter Cartridge Assembly
Filter cartridges are used to remove slight odors from gases
or vapors, or to remove dusts, mists, and fumes that may
be in the air supply.
When odors of vapors or gases become noticeable, or
when breathing resistance becomes uncomfortable, the
cartridge must be replaced. Filter cartridges should be
checked for flow resistance using the P/N 465783 Filter
Resistance Tester from MSA.
Installing the kit:
1. Hold the support assembly so that the “coated” arms
are up and the rubber block is toward the facepiece
lens.
2. Squeeze the arms together and insert the assembly
into the facepiece.
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:
3. Place the arms against
the lens and release
them. The ends of the
arms also must be
against the lens.
GMA Cartridges approved for respiratory protection
against not more than 1000 parts per million of organic
vapors. Available in packages of 10 under P/N 464031.
P100 Cartridge approved for respiratory protection against
particulates under the 42CFR84 P100 classification
(99.97% efficient against all particulate aerosols including
oil-based aerosols). Available in packages of ten.
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ACCESSORIES
d. Place the holder halves together and tighten the
bezel ring to assure a good seal at the gasket.
2. Connecting the cartridge holder (with filter cartridge
installed) to the respirator:
a. Disconnect the breathing tube from the valve-connector.
b. Connect the holder’s female fitting to the valveconnector.
c. Be sure there is a gasket in the breathing tube coupling nut.
CAUTION
The P/N 476089 Filter Cartridge Holder is not
approved for use with the air-purifying, Combination
Duo-Flo configurations of the Abrasi-Blast Respirator.
1. Installing the filter cartridges in the cartridge holder:
a. Unscrew the bezel ring.
b. Separate the holder
halves.
d. Connect the breathing tube coupling
nut to the holder
male fitting.
e. Position the holder to fit comfortably on your hip.
ABRASI-BLAST PARTS
c. Screw the filter cartridge in until it is
firmly seated on the
gasket.
TAL 113 (L) Rev. 2 - 818366
Consult the MSA Safety Equipment Catalog for parts and
part numbers.
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ABRASI-BLAST HOOD STYLES AND ACCESSORIES
SHOULDER MODEL
WAIST-LENGTH MODEL
Shoulder
Length Hood
Waist
Length Hood
Part No.
468725
Includes Collar
Part No.
468724
Includes Collar
Facepiece and
Breathing Tube
Must Be Ordered
Separately
Facepiece and
Breathing Tube
Must Be Ordered
Separately
COLLAR ASSEMBLY
Collar Assembly
Part No.
468705
Is Included With
Hood Assembly
BELT (REQUIRED ACCESSORY)
PLUG
Plug
473902 Vinyl
Support Belt
Part No.
465626
9961 Web
Support Belt
Required for all Abrasi-Blast Assemblies
To Be Used
When The
Breathing
Tube Is Worn
Inside Hood
CARTRIDGE ASSEMBLY
Part No.
476089
464031
464035
Holder
GMA Cartridge, Package of 10
Type H Filter Cartridge, Package of 10
SOME STANDARD ABRASI-BLAST RESPIRATOR ASSEMBLIES
(Includes one lens cartridge (.12 untempered) and instruction manual)
Flow Control Assy.
Hypolon
Hood
Abrasive
Mask Assy.
Pt. No.
Facepiece Breathing
(Medium)
Tube
Pt. No.
Pt. No.
Pt. No.
Style
468720
468725
Shoulder
472666
468716
468724
Waist
468722
468725
Shoulder
Pressure
Type
Supply
Quick
PSI
Disconnect
Supply
Hose
Union
Adapter
Pt. No.
Snap-Tite
Order Sep.
69542
10-15
Snap-Tite
Order Sep.
69542
35-40
Snap-Tite
Order Sep.
69542
Belt
Pt. No.
Pt. No.
470734
9961
463278
10-15
472666
470734
9961
463278
472666
470734
9961
460814
468718
468724
Waist
472666
470734
9961
460814
35-40
Snap-Tite
Order Sep.
69542
10117170
468725
Shoulder
472666
470734
9961
479114
32-37
CESN
Order Sep.
69542
10117169
468724
Waist
472666
470734
9961
479114
32-37
CESN
Order Sep.
69542
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FACEPIECE ASSEMBLIES
Demand (Single Valve)
Demand (Dual Valve)
SIZE
RUBBER
SMALL MEDIUM LARGE
PART
Model
Model
Model Hycar Silicone
NUMBER 7-434-2 7-434-1 7-434-3
SIZE
RUBBER
SMALL MEDIUM LARGE
PART
Model
Model
Model Hycar Silicone
NUMBER 7-410-2 7-410-1 7-410-3
473314
•
473312
•
473316
•
•
472668
•
472666
•
472670
•
•
•
•
•
•
PROTECTIVE LENS CARTRIDGES
Carton of 12
Part No.
Description of Lens
No. of Lenses
In Each Cartridge
One Cartridge
Part No.
Application
473798
.09 thick untempered
3
473795
Medium abrasive blasting
473800
.09 thick tempered
3
473796
Same as above with added protection against breakage
due to rough handling
473802
.12 thick untempered
two layers laminated
2
473797
Heavy abrasive blasting
481742
.12 thick untempered
two layers laminated
3
481714
Heavy abrasive blasting
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FLOW CONTROL DEVICES
ADJUSTABLE VALVE-CONNECTORS WITH COMPONENTS
Complete Assembly
Valve-Connector Body
With Socket Assembly
Quick
Disconnect
Components
Valve-Connector Body
Less Socket Assembly
High Pressure
(35-40 psig)
Low Pressure
(10-15 psig)
High Pressure
(35-40 psig)
Low Pressure
(10-15 psig)
Snap-Tite Aluminum
460814
463278
474022
474031
Snap-Tite Brass
471812
471816
474023
474032
Snap-Tite Stainless Steel
471813
471817
474024
474033
Foster Steel
471814
471818
474025
474034
Hansen Brass
471815
471819
474026
474035
Foster Brass
473828
473831
474027
474036
Hansen Stainless Steel
473829
473832
474028
474037
Duff-Norton Brass
473830
473833
474029
474038
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FLOW CONTROL DEVICES
Combination Duo-Flo
Complete Duo-Flo
Valve Assembly with
Plug and Socket
Assy. (35-90 PSIG)
Plug
Snap-Tite Aluminum
Snap-Tite Brass
Snap-Tite Stainless Steel
Foster Steel
Hansen Brass
Foster Brass
Hansen Stainless
Duff-Norton Brass
466077
476919
476920
469869
476922
476918
476921
476923
66273
630306
629671
56549
630312
473501
473502
630309
Locking Type
Snap-Tite Al. (Locking)
Snap-Tite Br. (Locking)
Snap-Tite St. St. (Locking)
CEJN Chrome (Locking)
480814
480816
480815
480813
479021
479023
479022
479020
Quick-Disconnect
Components
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AIR SUPPLY HOSE
NOTE: All air-supply hoses listed below are 3/8” in diameter (hose ID).
PRESSURE GAUGE ASSEMBLY
PRESSURE-GAUGE
ASSEMBLY
Part No.
476734
476735
476736
476737
476738
481377
PLUG TYPE
SNAP-TITE
FOSTER
DUFF-NORTON
HANSEN
CEJN (locking type)
SNAP-TITE (locking type)
AIR SOURCE
The Abrasi-Blast Hood requires a pressure regulated
source of clean, respirable compressed air. The purity of
the air source is the responsibility of the user. The respirator is approved only when the air supplied to the respirator meets the requirements of the Compressed Gas
Association Specification G-7.1-1989 for Quality Verification Level (Grade) D Breathable Air.
PART
NUMBER
HOSE
LENGTH (FT.)
481071
455020
455021
455022
481051
471511
471512
471513
484225
491513
491514
491515
474043
8
15
25
50
8
15
25
50
100
8
15
25
50
MATERIAL
NEOPRENE
NEOPRENE
NEOPRENE
NEOPRENE
POLYVINYL CHLORIDE
POLYVINYL CHLORIDE
POLYVINYL CHLORIDE
POLYVINYL CHLORIDE
POLYVINYL CHLORIDE
COILED NYLON
COILED NYLON
COILED NYLON
COILED NYLON
Particles and contaminants can enter an air-line respirator system when air-supply hoses are disconnected
and/or reconnected in a contaminated atmosphere.
This could result in inhalation of contaminants. It is
the user’s responsibility to determine the potential risk
and take the necessary precautions, which may
require prohibiting disconnection or reconnection of
air-supply hoses in a contaminated atmosphere. If in
doubt DO NOT disconnect and/or reconnect. Misuse
can result in serious personal injury or death.
AIR-SUPPLY HOSE
The respirator can be used with a wide range of MSA airsupply hoses, which can be interconnected up to a maximum length of 300 feet. A maximum of 12 sections of airsupply hose may be used in making up the maximum
working length of hose. The coiled hoses are considered
to be the indicated length, although actual extended
lengths can be less than indicated. (Maximum of one section of 8, 15, or 25 ft. of coiled hose or 6 sections of 50 ft.
coiled hoses). MSA also offers an inlet pressure-gauge
assembly that enables a user to check pressure at the
inlet of the MSA air-supply hose, thus assuring that the air
pressure is within the NIOSH approved range. The gauge
is supplied with quick-disconnect fittings to accommodate your particular air-line system.
MSA air-supply hoses have various temperature limitations. Do not use when inlet-air temperatures exceed
the limits specified for each hose material.
HOSE MATERIAL
RECOMMENDED
TEMP. LIMITS
Polyvinyl Chloride
Neoprene
Nylon
32°F - 120°F
-25°F - 212°F
-25°F - 120°F
Part numbers for various MSA air-supply hoses that can
be used are listed.
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AIR SUPPLY HOSE
INTERCONNECTING AIR-SUPPLY HOSES
The CEJN chrome and SNAP-TITE locking quick-disconnects shown below may be used to interconnect air-supply hoses. To connect, push the plug and socket together. To separate, the plug and socket must be pushed
together and the sleeve retracted from the plug.
MSA air-supply hoses can be interconnected up to a
maximum length of 300 feet without voiding the NIOSH
approval of the device. MSA offers both threaded and
locking-type quick-disconnects to interconnect hoses.
CEJN Chrome (C)
The following threaded connector assembly can be used
to interconnect sections of approved air-supply hose.
SNAP-TITE Aluminum (AL)
Check all hose connections to be sure fittings are
secure. This must be done to ensure a continuous
flow of air. Misuse can result in serious personal injury
or death.
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.
QUICK-DISCONNECTS
Various quick-disconnect assemblies that can be used
with the system are shown below. Quick-disconnects are
required to connect air-supply hoses to the respirator.
Additionally, locking-type quick-disconnects can be used
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 retraced
from the plug.
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QUICK DISCONNECTS
479026 Plug For (C) Quick Disconnect Assembly
479027 Plug For (AL) Quick Disconnect Assembly
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NOTES
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NOTES
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