Dräger FPS 7000 Manuel Technique page 17

3.9 Replacing the visor
3.9.1 Replacing the visor
(FPS 7000 RA/PE/ESA/P)
1. Unhook the cap from the visor frame on both sides (see
figure B1-1 on the fold-out page).
2. 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).
3. Pull the cap upwards to remove it from the facepiece.
4. Remove the screws of the visor frame.
5. Mask/helmet combination: Remove the mask/helmet
adapter.
6. Pull the visor frame apart, tilt it towards the front and pull it
off sideways.
7. Remove the visor from the rubber frame (see figure B2 on
the fold-out page).
8. Centre the new visor when inserting and make sure that it
is properly seated in the mask body.
Moistening either the mask body or the visor frame
facilitates assembly.
Note the centre marking on the visor.
9. Apply pressure to the visor frame until it snaps into place
at the centre of the visor.
● Full face mask: Then tighten with new self-locking
screws until the gap is closed.
● Mask/helmet combination: Place the mask/helmet
adapter onto the mounted visor frame, then tighten
with new self-locking screws until the gap is closed.
10. Place the cap on the front port, snap it into the fixing lugs
and hook it into the visor frame.
3.9.2 Replacing the visor (FPS 7000 RP)
1. If necessary, remove the covering cap of the drinking
valve and then remove it from the cap together with the
frame.
2. Loosen the screws (see figure F-1 on the fold-out page)
and remove the wiper handle.
3. 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.
4. Remove the screws of the visor frame.
5. Mask/helmet combination: Remove the mask/helmet
adapter.
6. Pull the visor frame apart, tilt it towards the front and pull it
off sideways.
7. Remove the visor from the rubber frame (see figure B2 on
the fold-out page).
8. Centre the new visor when inserting and make sure that it
is properly seated in the mask body.
Moistening either the mask body or the visor frame
facilitates assembly.
Note the centre marking on the visor.
Technical manual | FPS 7000FPS 7000 RP
9. Apply pressure to the visor frame until it snaps into place
at the centre of the visor.
● Full face mask: Then tighten with new self-locking
screws until the gap is closed.
● Mask/helmet combination: Place the mask/helmet
adapter onto the mounted visor frame, then tighten
with new self-locking screws until the gap is closed.
10. Align the wiper: the wiper arm must be in the centre of the
visor and the wiper must align correctly with the visor after
assembly.
11. If necessary, adjust the drinking valve.
12. Hook the cap into place on the button, place it over the
drinking valve if necessary, and then hook it into the visor
frame.
13. If necessary, pull the covering cap of the drinking valve
with the frame over the drinking valve and mount it to the
cap.
14. Mount the wiper handle, then fasten the three screws
(recommended torque: 60+5 Ncm).
®
15. Use Loctite 221 to secure the screw at the wiper handle.
16. If necessary, put the covering cap on the drinking valve.
3.10 Replacing the inner mask
Replace the inner mask (see figure D on the fold-out page):
1. To disconnect the inner mask, take hold of the inner mask
at the tip of the nose, pull it off the cam and remove it all
around from the speech diaphragm groove.
2. To attach and centre it, place the tip of the nose of the
inner mask on the cam. Insert the ring of the inner mask
into the groove in the speech diaphragm, first at the
bottom and then all around.
3.11 Replacing the inner mask control
valve discs (FPS 7000 RA/PE/ESA/P)
The valve discs and valve seats must be clean and
undamaged. Otherwise clean them or replace the valve discs.
3.12 Replacing the head harness
NOTICE
A hairnet can also be used instead of the head harness. The
hairnet has the same clips as the head harness.
1. Remove the head harness as follows (see figure G-1 on
the fold-out page):
a. Turn the head harness away from the flap on the
mask.
b. Push the clip on the head harness towards the visor.
2. Attach the head harness to the mask as follows (see
figure G-2 on the fold-out page):
a. Place the clip on the mask flap and push it onto the
latch.
b. Make sure that the nose on the flap is correctly
engaged in the hole in the clip.
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Maintenance work
17