3M W-3197 Инструкции пользователя - Страница 10

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10. Bring the free end of the shoulder strap across the back, over the left shoulder and down across your chest

to the female end of the belt buckle. (Fig. 5)

11. Snap the loop end of the shoulder strap just to the right of the female end of the belt buckle. This limits

the shoulder strap from sliding left past the buckle. Adjust the strap as required, tucking any extra strap

under the belt keeper on the shoulder strap. (Fig. 6)

12. Position the breathing tube across the back and over the right shoulder. If the top shoulder strap loop

makes this difficult to do because the top snap loop ends up on the front, or on the top of the shoulder,

unsnap it and tuck it under the shoulder strap next to your body. An unused top shoulder strap loop may

also be removed, if you are careful not to damage the shoulder strap. After all adjustments are made, the

highest loop that the breathing tube goes through should be positioned on your back approximately

between the shoulder blades.

Note: Positioning the breathing tube and shoulder strap over opposite shoulders will keep the breathing tube

close to the body, and helps to not restrict head movements. It is also beneficial for the breathing tube to go

over the right shoulder, so any upward shoulder movements then tend to tighten the air supply connection to

the facepiece, instead of loosening that connection.

13. The W-3188 breathing tube should then be connected to the W-3187 adapter. Assure the connection is

tight and secure. The W-3187 connection to the facepiece should always be tight enough that a slight tug

or push on the breathing tube will not loosen the connection of the air supply to the full facepiece.

14. Put on the facepiece. Make sure that the breathing tube does not tug or push on the facepiece. Normal

head movement should not compromise the facepiece seal. If it does, the shoulder strap attachments

should be readjusted, so that any tugging or pushing is minimized.

Fig. 5

Fig. 6