Scott AIR-PAK 75 Operating & Maintenance Instructions page 13

FACEPIECE INSPECTION
Examine the facepiece assembly for damaged or worn components. The
facepiece must be complete and in serviceable condition with no worn,
loose, or damaged components. If any damage is found or if there is
any suspicion that the facepiece may have been exposed to conditions
that may have caused damage, remove the facepiece from service and
replace.
Inspect the facepiece as follows:
1. Inspect the facepiece seal and other rubber components for deforma-
tion, wear, damage, or cracks.
2. Inspect the lens and lens frame as follows:
a) Inspect the lens for scratches, gouges, cracks, crazing, distortion,
melting, or any other damage or condition that could impair the
user's vision or the operation of the facepiece.
b) Inspect the lens frame for damage such as cracks or distortion.
c) Verify that the lens frame screws are present and installed cor-
rectly.
3. Inspect the head harness as follows:
a) Check that all harness anchors are present and operating properly.
b) Inspect the head harness for correct installation with all straps
oriented correctly.
c) Inspect the head harness for damage or worn components.
4. Inspect the voicemitter ducts as follows:
a) Verify that the voicemitter ducts are properly installed through the
facepiece lens.
b) Verify that each voicemitter duct has an outer grill installed and
that the grills are not damaged.
c) Inspect the voicemitters for damage and verify that the voicemit-
ters are properly installed and secure in the voicemitter ducts.
5. Inspect the nose cup as follows:
a) Inspect the nose cup for cuts or damage. Look for any signs of
damage to the facepiece port side of the nose cup where the
regulator attaches.
b) Verify that both inhalation valves in the nose cup are present and
properly installed.
c) Verify that the nose Cup is properly installed. Check that the nose
cup is properly seated between the flanges of the voicemitter
ducts. See FIguRE 2.
FIGURE 2
CHECKING VOICEMITTER
DUCTS
d) The nose Cup must be fitted
In FROnT OF the Face Seal
as shown in FIguRE 3.
FIGURE 3
NOSE CUP IN FRONT
OF FACE SEAL
6. Verify that the facepiece is clean in accordance with the CLEAnIng
THE FACEPIECE section of these instructions.
7. Adjust the head straps to the full outward position.
IN FRONT
OF FACE
SEAL
Page 13 of 48
WARNING
IF ANY FACEPIECE DAMAGE IS FOUND OR
IF THERE IS ANY SUSPICION THAT THE
FACEPIECE MAY HAVE BEEN ExPOSED
TO CONDITIONS THAT MAY HAVE CAUSED
DAMAGE, REMOVE THE FACEPIECE FROM
SERVICE AND REPLACE. FAILURE TO OBEY
THIS WARNING MAY RESULT IN SERIOUS
INJURY OR DEATH.
CAUTION
I F T H E N O S E C U P I S R E M O V E D F O R
I N S P E C T I O N , M A K E C E R TA I N I T I S
REASSEMBLED CORRECTLY.
REGULAR OPERATIONAL INSPECTION
CONTINUED ON NExT PAGE...
P/N 595252-01 Rev. B 5/14