3M SCOTT AIR-PAK X3 PRO Operating & Maintenance Instructions page 60

REPLACING BATTERIES
5 Using a Phillips screwdriver, remove the
screws of the battery housing cover as shown
in Figure 5-1. Carefully remove the cover and
set it aside.
6 Remove the used batteries by sliding them out
of the battery compartment.
7 Install 6 new AA batteries of the same type.
The battery holder is marked with the required
style and orientation of the batteries.
To maintain intrinsic safety, use 6 of one of the following types of 1.5 volt AA batteries:
•
Duracell Alkaline MN1500
•
Duracell Alkaline MX1500
•
Duracell Alkaline PC1500
•
Duracell Quantum QU1500
•
Energizer Alkaline EN91
•
Energizer Alkaline E91
8 Verify the correct orientation of batteries as shown on label inside the battery holder.
9 To ensure that the battery cover is water-tight after replacement, clean the sealing rib around the battery
compartment and sealing face of the cover by wiping with a clean damp to remove any dirt or foreign matter that
might prevent a proper seal.
10 Check the cover gasket for tears or cuts. If you find damage, remove respirator from service and tag it for repair
by authorized personnel.
11 To install the battery cover, align the three grooves on the cover with the three tabs on the battery compartment.
Using a Phillips screwdriver, tighten the cover screw to 13-15 in-lbs torque.
When the batteries are properly installed and the battery covers are placed in position, all lights in the HUD will
light for approximately 20 seconds to verify operation.
12 Before returning the respirator to service, perform a regular operational check. See
Respirator" on page 5.
44
Use a
screwdriver to
loosen the
screw on the
battery cover
Figure 5-1 Replacing batteries in a respirator with PASS
"Chapter 2: Inspecting the
P/N 595373-01
Replace the batteries.
Ensure that sealing
surfaces are clean
before replacing the
cap.
Rev C 202004