Scott 2, Operation And Maintenance Instructions

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WARNING
FAILURE TO DON FACEPIECE TIGHTLY AS INSTRUCTED MAY EXPOSE THE USER
TO THE HAZARDOUS ATMOSPHERE THE RESPIRATOR IS DESIGNED TO PROTECT
AGAINST AND RESULT IN SERIOUS INJURY OR DEATH.
FIGURE 6
FIGURE 5
9
DONNING PROCEDURES
Donning (i. e.: securing the respirator to the body, securing the facepiece on the face, and
obtaining and checking for a proper seal) must be done in an area know to be free of
contaminants. The respirator user must have received training and have practiced this
procedure before attempting to use the respirator for respiratory protection.
1.
Examine the SCOTT full facepiece to be certain it is complete and in serviceable
condition. Check to see that the inhalation and exhalation valves are properly installed
and operational.
2. Examine the breathing tube assembly to verify that
it is properly connected to both the mask and the
blower assembly.
3. Examine air filtration elements to verify that they
are properly installed to the blower assembly.
4. Push the push-button switch to the ON position to
confirm that battery is charged and blower is work-
ing. Turn switch OFF.
5. Don the waist belt with blower assembly so that
the breathing tube outlet is located at the top of
the unit. Fasten the buckle and adjust the waist
belt. See FIGURE 5.
6. Position blower assembly on back of one hip on
either the right or left side of the body. When prop-
erly donned, the ON/OFF switch shall be accessible
to the user and the digital display shall be visible to
the user. See FIGURE 6.
7. Don respirator facepiece and perform NEGATIVE
PRESSURE LEAK CHECK (as detailed in Step 8)
a) Adjust the head straps to their full outward
position.
b) Hold the head harness out of the way with
one hand or fold back over the lens.
c) Place the facepiece on the face with chin prop-
erly located in the chin pocket.
d) Pull the head harness over the head and
tighten the neck straps by pulling the two lower
strap ends toward the rear of the head.
e) Stroke the head harness net down the back
of the head using one or both hands. Retighten
the neck straps.
f) Adjust the temple straps by pulling the two
upper strap ends toward the back of the head.
Overtightening may cause discomfort.
g) Some facepieces are equipped with one or
two additional straps at the forehead. Tighten
the forehead strap(s).
h) Retighten the neck straps if required.