TAL 201 (L) Rev. 1 - 818366
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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.
Adjusting the Temperature with the
Vortex Tube
1. For minimum cooling, turn the
adjusting valve fully clockwise.
2. Rotate the adjusting valve
counter-clockwise until a comfort-
able temperature is reached.
3. For maximum cooling, turn the
valve counter-clockwise (approxi-
mately 3-1/2 full turns). 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 Duo-Flo 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 con-
nected to the Duo-Flo valve. The
air-line inlet pressure must be 35 -
40 psig 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 dis-
connected from the Duo-Flo valve.
The air-purifying mode is entered
“automatically” if the air-line
source is lost for any reason.
Return to fresh air immediately if:
•
Leakage is detected by smell,
taste, or eye, nose or throat irri-
tation.
•
High breathing resistance is
encountered.
•
Any feeling of nausea, dizziness
or ill-being develops.
Failure to follow this precaution can
result in serious personal injury or
death.
Removing the Respirator
1. To remove the hood, air supply
system and facepiece, return to
fresh air and clean the outer sur-
faces of the respirator before
removing the facepiece.
2. Unsnap the waist-strap on the
waist-length model.
3. Lift the back of the hood over your
head.
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.
6. Disconnect the air-line quick-dis-
connect.
7. Turn the air supply off.
8. Disconnect the breathing tube
from the flow control valve.
Cleaning and Disinfecting
The respirator must be cared for after
each use and on a regular mainte-
nance schedule. Thorough mainte-
nance includes cleaning and disinfect-
ing, as well as inspection of compo-
nents and parts replacement.
1. Remove excess dust from the res-
pirator.
2. Unlatch the lens door.
3. Grasp the foam frame edge of the
lens cartridge and carefully pull
the cartridge out.
4. Remove the used protective lens-
es from the hood pocket and dis-
pose 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 degrees F maxi-
mum water and air tempera-
ture).
b. Disconnect the breathing tube
from the facepiece.
Using the Respirator
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