P/N 595373-01 Rev C 202004
1
Rev C
202004
P/N 595373-01
CHAPTER 1
INTRODUCTION
This chapter describes the 3M Scott Air-Pak X3 Pro respirator and its major components.
Before You Begin
Carefully read “Safety Information” on page ix before beginning any of the procedures in this manual.
Overview
The Air-Pak X3 Pro self-contained breathing apparatus (SCBA) is a respirator that provides respiratory protection to
an individual when entering, working in, or exiting an objectionable, oxygen-deficient, or unbreathable (toxic)
atmosphere. This equipment is designed to withstand exposure to certain environmental conditions as defined by the
applicable approvals.
For information about the available configurations of the Air-Pak X3 Pro SCBA, see "Appendix A: Air-Pak X3 Pro
Models” on page 47.
Major Components of the Respirator
The basic Air-Pak X3 Pro consists of the following components (see Figure 1-1):
• Backframe and Harness Assembly (includes the backframe, shoulder harness, and waist pad)
• Cylinder and Valve Assembly
• Dual-Redundant Pressure Reducer
• Full Facepiece with Head Harness
• Mask-Mounted Regulator
All Air-Pak X3 Pro respirators described in this instruction are equipped with at least two independent end-of-
service time indicators, a remote pressure gauge mounted on the shoulder harness, an air-saver mechanism
located on the breathing regulator, and a Rapid Intervention Crew/Company Universal Air Connection (RIC/UAC).
TIP
Batteries are required for the proper operation of this equipment. Refer to “Chapter 5: Replacing
Batteries” on page 43 for more information.
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