Dräger FPS 7000 Manuel Technique page 16

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Maintenance work
3.6.2 Mask with P, PE or ESA-type connector
1. Open the exhalation valve cover.
2. Pull the straight leg of the spring holder outwards and
remove the spring holder (see figure G on the fold-out
page).
3. Remove the valve disc.
4. The valve disc and valve seat must be clean and
undamaged. Otherwise clean or replace them.
5. Insert the valve disc.
6. Place the spring at the centre of the valve disc, insert the
angled leg and lock the spring holder with both legs.
7. Close the exhalation valve cover.
3.7 Replacing the inhalation valve
3.7.1 Mask with P-type connector
1. Press the button on the front port.
2. Pull the inhalation valve seat with valve out of the front
port. Do not damage the front port.
3. The valve disc and valve seat must be clean and
undamaged. Otherwise clean or replace them.
4. Insert the inhalation valve seat with valve into the
facepiece.
3.7.2 Mask with PE or RA-type connector
1. Pull the inhalation valve seat with valve out of the front
port. Do not damage the front port.
2. The valve disc and valve seat must be clean and
undamaged. Otherwise clean or replace them.
3. Insert the inhalation valve seat with valve into the
facepiece.
3.7.3 Mask with ESA-type connector
1. To remove the valve seat, place a sealing ring lifter under
the edge of the valve seat. Do not damage the front port.
Do not pull the valve seat ribs with pliers.
2. The valve disc and valve seat must be clean and
undamaged. Otherwise clean or replace them.
3. Insert the inhalation valve seat with valve into the
facepiece.
3.8 Replacing the front port
3.8.1 Replacing the front port
(FPS 7000 RA/PE/ESA/P)
1. Disconnect the inner mask.
2. Unhook the cap from the visor frame on both sides (see
figure B1-1 on the fold-out page).
3. Push the bottom part of the cap up with your thumb and
remove the cap from the fixing lugs (see figure B1-2 on
the fold-out page).
4. Pull the cap upwards to remove it from the facepiece.
5. Use a screwdriver to pry open the clamping ring, then
remove it.
6. Pull out the old front port.
7. Align a new front port with the centre marking and insert it,
ensuring that it is properly seated.
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8. Align and mount a new clamping ring: Attach the hook to
ensure the tightest possible fit of the clamping ring.
Compress the nose of the clamping ring with the pliers
R 53 239 until the mask connector is securely located in
the mask body.
NOTICE
The cut-out for the front port varies depending on the
facepiece. Make sure that the following caps are used:
P or RA-type connector: cap R 56 278
PE or ESA-type connector: cap R 56 378
9. Place the cap on the front port, snap it into the fixing lugs
and hook it into the visor frame.
10. Attach the inner mask.
3.8.2 Replacing the front port (FPS 7000 RP)
1. Remove the mouthpiece if necessary.
2. Disconnect the inner mask.
3. If necessary, remove the covering cap of the drinking
valve and then remove it from the cap together with the
frame.
4. Loosen the screws (see figure F on the fold-out page) and
remove the wiper handle (see figure E-6 on the fold-out
page).
5. Unhook the cap from the visor frame, then remove it from
the front port by pulling it upwards over the drinking valve.
The drinking valve remains in the front port.
6. Swivel the drinking valve downwards by 180°, then pull it
out of the front port.
7. Use a screwdriver to pry open the clamping ring (see
figure A3-21 on the fold-out page), then remove it. Take
care that the mask body does not get damaged.
8. Pull out the old front port.
9. Align a new front port with the centre marks. Align the
wiper to the centre of the visor. The wiper must point
towards the visor.
10. Insert the front port, ensuring that it is properly seated.
11. Align and mount a new clamping ring: Attach the hook to
ensure the tightest possible fit of the clamping ring.
Compress the nose of the clamping ring with the pliers
R 53 239 until the front port is securely located in the
mask body.
12. If necessary, adjust the drinking valve.
13. Hook the cap into place on the button, place it over the
drinking valve if necessary, and then hook it into the visor
frame.
14. If necessary, pull the covering cap of the drinking valve
with the frame over the drinking valve and mount it to the
cap.
15. Mount the wiper handle, then fasten the three screws
(recommended torque: 60+5 Ncm).
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16. Use Loctite 221 to secure the screw at the wiper handle.
17. If necessary, put the covering cap on the drinking valve.
18. Attach the inner mask.
19. Fit the mouthpiece if necessary.
Technical manual | FPS 7000FPS 7000 RP