Donning The Facepiece - Dräger FPS 7000 Gebrauchsanweisung

enUS | Use
4.1.2 Preparing the facepiece for use
1. Install the facepiece spectacles if necessary.
2. If fitted, remove the protective film from the visor.
3. Open the head harness as far as possible.
4. Put the neck strap around the neck and fasten the facepiece in the standy
position using the carrying strap (see Figure B on Page 94).
4.1.3

Donning the facepiece

At very low temperatures, the user can reduce facepiece fogging by either
inhaling or holding his breath when donning the facepiece.
1. Loosen the facepiece from the standby position.
2. Pull the head harness apart, then put your chin into chin cup of the
facepiece body (see Figure C on Page 94).
3. Pull the head harness over your head and draw backwards.
4. Adjust the facepiece.
5. Pull the straps until evenly tightened; first the neck straps (1), then the
temple straps (2), finally the harness connecting piece (3, see Figure D
on Page 94).
6. Don the helmet and make sure that it fits correctly.
7. Check if the facepiece fits tightly (see "Checking tight fit", page 4).
4.1.4 Checking tight fit
4.1.4.1 Facepiece with RA-type connector
Choose either method A or method B to check tight fit of the facepiece.
Method A allows you to keep the canister connected to the facepiece. When
you use method B, the canister is not connected. As a result, method B does
not check the tight fit between facepiece and canister.
4.1.4.1.1 Method A
1. Screw the canister into the connector until it is tightly seated. Have a second
person check the firmness and correct connection.
2. Close the canister opening with the palm of your hand.
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3. Inhale, then hold your breath. No entry of air should be perceived, otherwise
check the fit of the facepiece.
The exhaled air must escape through the exhalation valve without
resistance.
4. Repeat the fit test twice.
4.1.4.1.2 Method B
1. Close the RA-type connector with the palm of your hand.
2. Inhale, then hold your breath. No entry of air should be perceived, otherwise
check if the facepiece was donned correctly.
The exhaled air must escape through the exhalation valve without
resistance.
3. Repeat the fit test twice.
4. Screw the canister into the connector until it is tightly seated. Have a second
person check the firmness and correct connection.
4.1.4.2
Choose either method C or method D to check tight fit of the facepiece.
Method D allows you to keep the air-supply system connected to the facepiece.
4.1.4.2.1 Method C
1. Put lung demand valve in the connector.
2. Turn and pull the lung demand valve to check for tight fit. Have a second
person check the firmness and correct connection.
3. Close the medium pressure hose with your thumb.
4. Inhale, then hold your breath. No entry of air should be perceived, otherwise
check the tight fit of the facepiece.
The exhaled air must escape through the exhalation valve without
resistance.
5. Repeat the fit test twice.
6. Connect self-contained breathing apparatus or airline breathing apparatus
to the lung demand valve.
Instructions for use | FPS 7000 Use Instructions for NIOSH-approved full facepieces
Facepiece with P-type connector