3M BT-60 Serie Instrucciones De Uso página 8

7. Tighten the middle straps one at a time. Be careful to tighten both sides equally (Fig. 15).
8. Tighten the top straps one at a time. Be careful to tighten both sides equally (Fig. 16).
Note: Repeat the sequence of steps 6-8 twice, once to snug the straps and take up slack and a second time to secure and seal the respirator
facepiece to the face.
9. Recheck all straps to ensure that they are tight and evenly tensioned so that the head harness is centered on the back of your head. Ensure that
the straps and tabs lay flat against your head. If possible, have a partner verify that you have donned your respirator properly.
Note: You may find it easier to lift the breathing tube over the head so it rests at the front of the body, which allows the bottom straps to be
tightened more easily (Fig. 17). After tightening the straps, lift the breathing tube over the head so it rests at your back (Fig. 18).
Donning the 6000 and 7800S Series Full Face Respirator
1. Fully loosen all four head straps.
2. Lift the Y-branches of the BT-60 Series Tube along with the facepiece over your head so the Y-branches of the breathing tube are resting on your
shoulders and the faceseal of the respirator is in front of you.
3. Hold the front of the facepiece with one hand and the straps away from the facepiece with the other hand, creating an opening for the head.
4. Pull the respirator assembly down over the head with the headstraps at the back of the head.
5. Place the nose in the nose cup and chin in the chin cup area then press the facepiece firmly and evenly against the face (Fig. 19).
6. Tighten the bottom straps one at a time. Be careful to tighten both sides equally (Fig. 20).
7. Tighten the top straps one at a time. Be careful to tighten both sides equally (Fig. 21).
Note: You may find it easier to lift the breathing tube over the head so it rests at the front of the body, which allows the bottom straps to be
tightened more easily (Fig. 22). After tightening the straps, lift the breathing tube over the head so it rests at your back (Fig. 23).
Fig. 17
Fig. 19
Fig. 22
Fig. 20
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Fig. 18
Fig. 21
Fig. 23