11
12
To assemble the 3M™ Dual Airline Breathing Tubes with cartridges and/or fi lters, do the following:
1. Remove the inhalation valves from the half or full facepiece and store them so they remain fl at (Figs. 16 and 17).
2. Attach the 3M™ Dual Airline Breathing Tubes SA-1600 or SA-2600 combination dual airline breathing tubes to the
facepiece per the procedures outlined previously in these
User Instructions
. The process is identical to the attachment of
the 3M™ Dual Airline Breathing SA-1500 and SA-2500 models.
3. Make a selection of cartridge and/or fi lter that meets your respiratory protection requirements, and attach to the outer
bayonets on the 3M™ Combination Dual Airline Breathing Tubes SA-1600 or SA-2600 (Fig. 18).
4. Don the facepiece per the procedures outlined in the
Donning
section of this
User Instruction
.
5. After being properly fi t tested, perform a positive and negative user seal check per the procedures outlined later in this
section.
If a proper fi t cannot be obtained, see your supervisor. Do not enter the contaminated area.
6. Attach a supplied air hose to the 3M™ Air Regulator SA-1009 air regulator or the 3M™ Low Pressure Connector
SA-1029 and adjust the air pressure to the manufacturer’s specifi ed setting for the length of supplied air hose employed.
Using the 3M™ Combination Dual Airline Breathing Tubes without Cartridges and Filters
To use the 3M™ Combination Dual Airline Breathing Tubes SA-1600 and SA-2600 without cartridges or fi lters, attach a
3M™ Bayonet Cap 6880 to each outer bayonet mount on the dual airline breathing tube. As a straight, Type C, continuous
fl ow supplied air respirator, the Assigned Protection Factor is 50 times the PEL or TLV guidelines for the half facepiece
respirators, and 1000 x the PEL or TLV guidelines for the full facepiece respirators. In Canada, follow CSA standard Z94.4 or
the requirements of the authority having jurisdiction in your region.
Replacing 3M™ Airline Fittings and Breathing Tubes
Prior to using the respirator, it must be equipped with the proper airline fi ttings. To assist in meeting the OSHA requirements
for airline fi ttings, 3M™ Dual Airline Respirators are approved with several types of quick disconnect designs. See the
Dual
Airline Replacement Parts
section of this
User Instruction
for a complete listing of 3M fi ttings.
To replace a plug on an air control valve:
1. Secure the valve in a padded vise and use a wrench to remove the plug.
2. Apply pipe thread tape to the threads of the new plug and tighten the replacement plug into the valve.
3. Attach the hose to a compressed air source with 38 psig (262 kN/m
2
). Use soapy water on the fi ttings to confi rm a tight
fi t. Leakage in the connection will cause bubbles to form. Do not use if a tight fi t is not confi rmed.
To replace a dual airline breathing tube
1. Remove the breathing tube using 2 wrenches; one for the breathing tube fi tting and the other to hold the air control valve
on the fl at sides of the cap.
2. Apply pipe thread tape to the threads of the replacement breathing tube, hand thread the breathing tube into the air
control valve and tighten using the two wrenches.
OPERATING INSTRUCTIONS
W
WARNING
Failure to follow these instructions may reduce respirator performance, overexpose you to contaminants, and
may result
in sickness or death.
• Do not wear this respirator to enter areas for which it is not NIOSH certifi ed or designed, including areas where:
– Atmospheres are oxygen defi cient.
– Contaminant concentrations are unknown.
– Contaminant concentrations are Immediately Dangerous to Life or Health (IDLH).
– Contaminant concentrations exceed the Maximum Use Concentration (MUC) determined using the Assigned Protection
Factor (APF) for the specifi c respirator system or the APF mandated by specifi c government standards, whichever is lower.
• Contaminants that are dangerous to your health include those that you may not be able to see or smell. Leave the
contaminated area immediately if any of the following conditions occur.
– Any part of the system becomes damaged.
– Airfl ow into the respirator decreases or stops.
– Breathing becomes diffi cult.
– You feel dizzy or your vision is impaired.
– You taste or smell contaminants.
– Your face, eyes, nose or mouth become(s) irritated.
– You suspect that the concentration of contaminants may have reached levels at which this respirator may no longer
provide adequate protection.
• DO NOT remove the facepiece nose cup. The dual airline is only approved for use with the nose cup installed.
• Do not enter a contaminated area until the respirator system has been properly donned. Do not remove the respirator
before leaving the contaminated area.
• If you have any doubts about the applicability of this equipment to your job situation, see your supervisor, consult an
industrial hygienist or call 3M Personal Safety Division, Technical Service, in U.S.A. at 1-800-243-4630. In Canada, call
Technical Service at 1-800-267-4414.
• Before using any respirator with a negative or positive pressure tight-fi tting facepiece, the employee must be fi t tested
with the same make, model, style and size of respirator that will be used. Fit testing is required by OSHA’s Respiratory
Protection standard 29 CFR 1910.134. In Canada, follow CSA standard Z94.4 or the requirements of the authority
having jurisdiction in your region.
• As part of a good industrial hygiene program and as stated in the OSHA respiratory protection standard 29 CFR
1910.134 and in the CSA standard Z94.4 “Selection, Use and Care of Respirators”, a tight fi tting facepiece must not
be worn with beards or other facial hair or other conditions that prevent a good seal between the face and the sealing
surface of the respirator.
General Instructions
1. Observe all WARNINGS contained in these
User Instructions
when using this product. Failure to do so
may result in
improper usage and could result in sickness or death.
2. Ensure that the equipment has been inspected, assembled and checked for performance as prescribed in these
User Instructions
.
3. Never alter or modify this respirator.
4. A Qualitative Fit Test (QLFT) or Quantitative Fit Test (QNFT) is required for all tight fi tting supplied air respirators per OSHA
respiratory protection standard 29 CFR 1910.134. In Canada, follow CSA standard Z94.4 or the requirements of the
authority having jurisdiction in your region.
5. The useful service life of chemical cartridges will depend on the rate of airfl ow through the cartridges, specifi c
type, volatility and concentration of the contaminants and environmental conditions such as humidity, pressure and
temperature. Replace cartridges in accordance with an established change schedule or end of service life indicator
(ELSI). Replace cartridges immediately if smell, taste or irritation from contaminants is detected. Filters must be replaced
immediately if they become damaged, soiled or if increased breathing resistance occurs. N-series fi lters should not be
used in environments containing oil aerosols. R-series fi lters may be limited to 8 hours continuous or intermittent use if
oil aerosols are present. In environments containing only oil aerosols, P-series fi lters should be replaced after 40 hours of
use or 30 days, whichever is fi rst.
Performance Check
To be performed prior to each use of the respirator.
General Information
1. Check 3M™ Supplied Air Hose and Breathing Tube for any leaks, tears or generally worn conditions. Replace if damaged.
2. Inspect the facepiece to ensure it is in good operating condition.
3. Make sure that the dual airline breathing tube is securely attached to the facepiece and the air regulator or low
pressure connector.
4. Verify that the pressure of the air supply remains within the stated pressure range for the hose length being used (see
the
System Description and Replacement Parts
section of this
User Instruction
).
5. Connect the supplied air hose to the air control valve and the source of compressed air. A continuous airfl ow into the
facepiece should occur. If a continuous fl ow is absent, do not use the unit. Remove the respirator from service and
review troubleshooting guidelines.
