P/N 595373-01 Rev C 202004
17
Rev C
202004
P/N 595373-01
CHAPTER 3
OPERATING THE RESPIRATOR
This chapter provides the basic instructions for operating the 3M Scott Air-Pak X3 Pro SCBA. Training and practice
with the equipment are required before operation to ensure that you are completely familiar with the operation of the
respirator.
Instructions for operating the respirator are divided into the following sections:
• “Before You Begin” on page 17
• “Donning the Respirator” on page 18
• “Donning the Facepiece” on page 19
• “Starting the Respirator” on page 23
• “Using the Respirator” on page 25
• “Shutting Off the Respirator” on page 25
• “Replacing Air Cylinders” on page 27
• “Special Use Situations” on page 30
• “Resuming Use of the Respirator” on page 30
• “Using the Respirator in Standby” on page 31
• “Emergency Operation” on page 31
• “Using the RIC/UAC Connection” on page 32
• “Using Alternate Cylinders” on page 33
• “Low Battery” on page 34
• “Low Temperature Operation” on page 34
Before You Begin
Before performing any of the procedures in this chapter:
• Carefully read “Safety Information” on page ix.
• Inspect and test your respirator as described in “Chapter 2: Inspecting the Respirator” on page 5.
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