Dräger BG ProAir, Инструкция по эксплуатации

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Maintenance
Instructions for use |
Dräger BG ProAir
21
5.2.5.6 Fitting the drainage valve and relief valve
The valve discs must be clean and intact and be in contact
with the entire circumference of the valve seat. Replace faulty
valve discs!
1. Fit the relief valve:
a. Fit the stepped valve disc (2) to the valve seat (1).
b. Insert the shaft of the valve disc (3) in the hole of the
valve seat (1).
c. Make sure the spring (4) is secured with a coil under
the hook in the lid (5). Position the spring (4) centrally
on the valve disc (3).
d. Fit the lid (5) and screw closed until it locks into place.
2. Insert the relief valve in the breathing bag.
Both engagement hooks must be correctly engaged.
When inserting, make sure that a click is heard.
3. Assemble the drainage valve:
a. Insert the shaft of the valve disc (2) in the hole of the
valve seat (1).
b. Make sure the spring (3) is secured with a coil under
the hook in the lid (4). Position the lid (4) with the
spring (3) centred on the valve disc (2).
c. Fit the lid (4) and screw closed until it locks into place.
5.2.5.7 Installing the breathing bag
1. Slide the pouch of the breathing bag onto the minimum
valve lever and place the breathing bag entirely in the
carrying frame.
Make sure that the breathing bag is not positioned on
the lever, but that the minimum valve lever is correctly
inserted in the pouch of the breathing bag and the
breathing bag is not lying on the bracing rail of the carrying
frame.
2. Fasten the breathing bag with the locking mechanisms to
the CO
2
absorber and breathing air cooler. Every locking
mechanism has two lock buttons with engagement hooks.
Ensure the locking mechanisms on the CO
2
absorber and
breathing air cooler fully engage:
a. Push the locking mechanism on the underside onto the
connection of the CO
2
absorber or breathing air cooler
until the lower engagement hook clicks into place.
Make sure that a click is heard when doing so.
b. Push the locking mechanism on the upper side onto
the connection of the CO
2
absorber or breathing air
cooler until the upper engagement hook clicks into
place. Make sure that a click is heard when doing so.
The locking mechanisms must engage. When
connecting, make sure that a click is heard.
c. Gently pull the breathing bag and check whether the
locking mechanisms are secure.
3. Position the spring bridge on the mounts in the closed-
circuit breathing apparatus and swivel by 90°. Make sure
the breathing bag does not get stuck between the spring
bridge and carrying frame and that the relief valve is
positioned in the recess for the pressure plate.
4. Click the spring bridge on each side into the carrying
frame. Make sure that a clicking sound can be heard on
both sides.
5. Insert the drainage valve in the mount of the carrying
frame.
5.2.5.8 Fitting the compressed oxygen cylinder
1. Check the high pressure sealing ring on the pressure
reducer connecting piece for damage and contamination.
It must be clean, free of grease and intact. Replace if
necessary.
2. Remove the lock nut from the compressed oxygen
cylinder.
3. Place the compressed oxygen cylinder in the cylinder
mount.
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