3M Speedglas 9100 Air Directives D'utilisation page 8

5. With the welding helmet on the head, grasp the faceseal and pull the faceseal over the chin and around the
face. By pressing the barrel clip and pulling gently on the drawstring, adjust the faceseal until a comfortable fi t
is achieved (Fig. 5). There should be minimal gaps around the face and faceseal interface when the faceseal is
adjusted appropriately.
NOTE: It is important that the faceseal is correctly mounted and fi tted to provide respiratory protection. Do not
remove the welding helmet respirator or turn off the air supply until you have vacated the contaminated area.
6. With the headgear adjusted, make sure to connect an approved air supply source to the headgear using either
the SG-30W, SG-40W or SG-50W breathing tubes.
NOTE: Only the SG-50W breathing tube can be used with the 9100 Air welding helmet when used with the Adfl o
air supply with the OV/AG and particulate fi lter combination.
Not NIOSH approved with V-Series Supplied Air Valves.
The breathing tube attaches to the headgear at the locations marked "X" in Figs. 4a and 4b. Press fi rmly on the
QRS connector end of the breathing tube until you hear a click. Pull gently on the breathing tube to assure it is
connected properly and can not be removed without pressing on the blue release tabs. Once the headgear is
connected to an approved air supply source, and the air source is turned on or set to the recommended pressure,
assure that air fl ows through the headgear.
Fig. 5
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Airduct Length Adjustment (3M ™ Speedglas
The position and length of the airduct may be adjusted by detaching the airduct from the headband and rotating
the assembly around the helix of the airduct tubing (Fig. 6). This adjustment may be used to optimize the length
of the airduct in the event that the breathing tube may push or pull on the (3M
9100 Air) assembly, especially when in the "up" position.
Airduct Length Adjustment
™ Welding Helmet 9100 Air)
™ ™
Speedglas Welding Helmet
Fig. 6
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