11
E
E
N
N
G
G
L
L
II
S
S
H
H
8.1 CLEANING AND SANITIZING
1)
Remove air-purifying elements from connectors.
2) Remove breathing tubes if so equipped
3)
Inspect the head straps and clips for wear. Check all
elastomer and rubber parts for pliability and signs of
deterioration. (See Figure 12.)
4a) For the 7600 Series, unscrew and remove the exhala-
tion valve guard, valve and seat. (See Figure 13.)
For the 5400 Series, Remove the Oral/Nasal Cup by
pulling it from the mask, push and twist the exhalation
housing assembly counterclockwise and remove. (See
Figures 15 and 13A.)
b)
Remove the threaded plastic flange which held the
exhalation valve seat from the inside of the oral/nasal
cup. (See Figure 14.)
c) Remove the oral/nasal cup assembly by pulling it from
the mask. (See Figure 15.)
d) Unscrew the nut retaining the speech diaphragm and
remove the diaphragm and O-Ring. Inspect O-Ring for
damage, replace if necessary. (See Figure 16.)
FIGURE 12
Inspecting the Facepiece
FIGURE 13
Removing the Exhalation Valve on the 7600 Series
FIGURE 14
Removing the Plastic Flange on the 7600 Series
FIGURE 15
Removing the Oral/Nasal Cup
All O-Rings and gaskets must be replaced at least once
a year.
CAUTION
FIGURE 16
Removing the Speech Diaphragm on the 7600 Series
Never allow air-purifying elements to come in contact
with water or cleaning and sanitizing solutions.
Excessive moisture can damage the air-purifying
elements and expose the user to the risk of serious
injury, illness or death.
WARNING
