Performing Operational Testing; General Testing - 3M SCOTT AIR-PAK X3 PRO Inspection & Cleaning Instructions

7 Verify that a full cylinder is properly installed in the backframe and that the reducer hose coupling is
hand-tightened to the cylinder valve outlet.
CAUTION
Do not use tools to tighten the hose couping, Over-tightening the hose coupling may damage the gasket
seal.
If you do not find any damage to the respirator, proceed to

Performing Operational Testing

Testing includes checking the basic operation of the respirator, followed by more thorough checks of the regulator,
HUD, sensor module lights, and batteries.
CAUTION
If any discrepancy or malfunction is noted during the inspection, do not use the respirator. Remove the
respirator from service and tag it for repair by authorized personnel.

General Testing

1 Check that the mask-mounted regulator purge valve (red knob on regulator) is closed (the pointer on the knob
points up).
2 Fully depress the center of the air saver/donning switch on the top of the E-Z Flo+ regulator or firmly pull the
auto air-saver switch on the E-Z Flo C5 regulator latch and release.
3 Slowly open the cylinder valve by fully rotating the knob counterclockwise (approximately two-and-one-half
turns). Confirm that the following occur:
•
The Vibralert alarm sounds and then stops.
•
The HUD initializes.
– All lights turn on for 20 seconds before displaying the cylinder's air supply level.
– If the low battery light remains lit or begins to flash, replace the batteries before proceeding. See
"Chapter 4: Replacing
•
If the respirator is equipped with a Personal Alert Safety System (PASS) device, also known as a distress
alarm, you will hear three quick chirps when the cylinder valve is opened.
WARNING
If any of the indicator alarms do not actuate as described, do not use the respirator, Remove the respirator
from service and tag it for repair by authorized personnel. Using a respirator with improperly operating
end-of-service indicators may result in serious injury or death.
4 Check that the remote pressure gauge is operating properly and that its reading is within 10% of the value on the
cylinder pressure gauge.
5 Don the facepiece or hold the facepiece to your face to create a good seal.
a Inhale sharply to automatically start the flow of air. Breathe normally from the facepiece to ensure proper
operation.
b Remove the facepiece from your face. Confirm that air flows freely from the facepiece.
P/N 595360-01 Rev G
Batteries" on page 51.
202004

PERFORMING OPERATIONAL TESTING

"Performing Operational Testing".
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