INSPECTION
9. Install the remaining Philips screw in the other lens
ring mounting flange and screw it about half way into
the opposite lens ring flange.
10. Alternate tightening the screws until the lens is secure.
11. Reinstall the Component Housing parts as described
above.
12. Don the facepiece and perform the Tightness Test to
be sure the facepiece seals correctly and is leak-tight.
RUBBER HARNESS STRAPS DISASSEMBLY
Top Straps
Unbutton the top straps
and slide the straps back
through retainer. Pull the
top straps through slot in
lens rings.
Bottom Straps
Unthread both bottom straps through the buckles.
Buckles
The bottom buckles are
detachable. Grasp the
buckle and the facepiece
tab and push them togeth-
er until the button is free.
RUBBER HARNESS STRAPS REASSEMBLY
1. Place the new harness on a flat surface with the MSA
logo facing "right-side up." In this position, the straps
above the logo are the top straps.
2. Grasp one top strap and fold the end-tab in half.
3. From the "face" side of the facepiece, insert the end
tab under the slot in lens ring.
4. Thread the end-tabs up through the lens ring slots and
pull strap through several inches.
Attach the bottom straps to the bottom, detachable
buckles:
1. Place the buckle’s button-hole over the button.
2. Grasp a facepiece tab and buckle in each hand and
pull them apart until the button snaps into the button-
hole.
3. Make sure the strap is not twisted, and that the boss
on end-tabs side is facing up (away from the inside of
the facepiece).
4. Thread the end tabs with the boss facing up, through
the bottom slot of buckles, then over center bar, down
through top slot of buckles.
5. Pull straps through buckles.
6. Don the facepiece and perform the Negative Pressure
Seal Test.
PLASTIC ADVANTAGE HARNESS DISASSEMBLY
Top Straps:
Note:
Fold the mask rubber (blank) in against the lens.
1. Push top of straps, close to Adapter Clip, down
against the mask rubber.
2. Pull straps down, and out of the Adapter Clip, ensur-
ing not to damage the Adapter Clip.
Bottom Strap:
1. Grasp the buckle and the mask tab and push them
together until the button is free from buckle.
Adapter Clip:
Note:
All procedures are from the “lens” side of the mask.
1. Slide a small flat bladed screwdriver between the top
of the Adapter Clip and Lens Ring.
2. Slowly lift up on the screwdriver until Adapter Clip is
free of Lens Ring.
PLASTIC ADVANTAGE HARNESS REASSEMBLY
Top Straps:
Place the new harness on a flat surface with the MSA
logo facing “right-side up”. In this position, the straps
above the logo are the top straps.
Note:
All procedures are from the “face” side of mask.
1. Fold the mask rubber against lens.
2. Slide the slotted part of top strap under the Adapter
Clip, push the slotted part into Adapter Clip. Pull on
strap to ensure it is secure in Adapter Clip.
3. Make sure the strap is not twisted and ensure the
strap moves freely.
18
TAL 013 (L) Rev. 10 - 10028994
Summary of Contents for Advantage 3100
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