Functional Tests - MSA PremAire Cadet Escape G1 Manual De Instrucciones

7.3

Functional Tests

If the respirator does not function properly as described in the "Functional Tests" section, the respi-
rator must be removed from service and must be checked and corrected for proper operation by an
MSA trained or certified repair person before using. Failure to follow this warning can result in serious
personal injury or death.
If the respirator has passed the visual inspection successfully, conduct the functional tests daily and
after each use.
If any part of the respirator fails the functional test, do not use the respirator and return the device to
a certified repair technician.
NOTE: The functional checks must be conducted with a full cylinder. Before starting the tests, check
the pressure gauge on the cylinder valve to verify that the cylinder is full.
Check that the Regulator and Facepiece Can Hold a Negative Pressure
(1) Close the cylinder valve and purge any air from the system using the bypass knob or the purge
cover on the regulator
(2) Hold the facepiece against the face to create an effective seal.
(3) Attach regulator to the facepiece and inhale until the facepiece begins to collapse against the
face.
(4) Hold breath for approximately 10 seconds.
Negative pressure should be maintained and the facepiece should remain collapsed against

the face for the entire 10 seconds.
Do not use the respirator if negative pressure cannot be maintained in the facepiece.
Visual Inspection and Functional Checks
WARNING
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