Inspecting The Respirator Components; Performing A General Inspection; Inspecting The Breathing Air Cylinder - 3M SCOTT AIR-PAK X3 PRO Operating & Maintenance Instructions

INSPECTING THE RESPIRATOR

Inspecting the Respirator Components

Inspect the respirator before each use and after each cleaning.

Performing a General Inspection

To inspect the respirator
1 Inspect the complete respirator for worn or damaged components.
a Inspect hoses and rubber parts for cracking, splitting, or brittleness.
b Inspect the harness webbing and all elastomeric components for cuts, tears, abrasion, fraying, or indication of
heat or chemical damage.
c Check all buckles and fasteners for proper operation.
d Check the cylinder retention system for damage and for proper operation.
e Verify that the respirator has been properly cleaned.
2 Verify that the shoulder harness assembly and waist pad are firmly attached to the backframe.
a Check that all harness sleeves are firmly fastened.
b Verify that the regulator hose and console cable are properly threaded through the harness sleeves.
3 Inspect the pressure reducer for damage. Verify that the pressure reducer is securely mounted to the
quarter-turn mount on the backframe.
4 Inspect the breathing regulator for damaged or missing components.
a Remove the breathing regulator from the facepiece by pulling back on the regulator latch and rotating the
regulator one-quarter turn.
b Verify that the regulator gasket is in place around the outlet port of the regulator. Inspect the gasket for rips or
damage that may break the seal.
c Verify that the purge valve (red knob) is not damaged and turns smoothly one-half turn from stop to stop.
5 If you have an approved voice amplifier or other communications device, refer to the user instructions provided
with that device for details about maintenance and operational testing. Always confirm that the device has fresh
batteries before use.

Inspecting the Breathing Air Cylinder

Inspecting the cylinder includes looking for physical damage, noting the hydrostatic test date, and inspecting the
cylinder valve, including the hand wheel, outlet, connector, and relief valve.
To inspect the breathing air cylinder
1 Visually inspect the breathing air cylinder and valve assembly for physical damage such as dents or gouges in the
metal or the composite wrapping.
Physical damage to breathing air cylinders from high heat, flame, or chemical exposure includes the following:
•
Discoloration or paint that has turned brown or black
•
Charred or missing decals
•
Melted pressure gauge lens
•
Distorted elastomeric bumper
•
Cracks in the cylinder or the composite wrapping
6 P/N 595373-01 Rev C 202004