3M 7026 Gebrauchsanweisung - Seite 10

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2. Attach 3M SA-1600 or SA-2600 breathing tubes to facepiece per the procedures outlined previously.

The procedure is identical to the 3M SA-1500 and SA-2500 models.

3. Make a selection of cartridges and/or filters that meets your respiratory protection requirements, and

attach to outer bayonets of 3M SA-1600 or SA-2600 breathing tubes. (Fig. 10)

4. Don facepiece per procedures outlined in Fitting Instructions.

5. After being properly fit tested, perform a positive and negative pressure user seal check per procedures

outlined in User Seal Check instructions.

If you cannot achieve a proper fit, DO NOT enter contaminated area. See your supervisor.

6. Attach airline to approved air regulators per pressure schedules in dual airline operator's manual.

Using the 3M Combination Dual Airline Breathing Tubes without Cartridges or

Filters

To use the 3M SA-1600 or SA-2600 breathing tubes without cartridges or filters, attach a 3M™ 6880

Bayonet Cap to each outer bayonet mount on the breathing tube. When used as a straight, Type C,

continuous flow supplied air respirator, the Assigned Protection Factor is 50 times the PEL or TLV.

FITTING INSTRUCTIONS

Must be followed each time respirator is worn.

Note: Do not use with beards or other facial hair or other conditions that prevent a good seal between the

face and the faceseal of the respirator. To help maintain a good seal between the face and the faceseal all

hair, hoods, or other equipment must be kept out of respirator faceseal area at all times.

Donning Respirator

1. Place respirator over your mouth and nose, then pull head harness over crown of your head. (Fig. 11)

2. Take bottom straps in both hands, place them in back of your neck, and hook them together. (Fig. 12)

3. Position facepiece low on the bridge of your nose for optimal visibility and best fit.

4. Adjust top straps first, then lower neck straps by pulling on ends. (Fig. 13) DO NOT pull too tight!

(Strap tension may be decreased by pushing out on back side of buckles.) Perform a positive pressure

and/or negative pressure user seal check. The positive pressure method is recommended.

If you cannot achieve a proper fit, DO NOT enter contaminated area. See your supervisor.

User Seal Checks

Always check the seal of the respirator on your face before entering a contaminated area.

Positive Pressure Seal Check

1. Place the palm of your hand over the exhalation valve cover and exhale gently. If facepiece bulges

slightly and no air leaks are detected between your face and the facepiece, a proper fit has been obtained.

(Fig. 14)

2. If faceseal air leakage is detected, reposition respirator on your face and/or readjust tension of the elastic

straps to eliminate leakage.

3. Repeat above steps until a tight faceseal is obtained.