Dräger PSS BG 4 RP, Instructions For Use Manual

Page: 50 / 78

50
Use en
2.7.6 Maintenance
Recommended Inspection and Maintenance Intervals
The following details are recommendations given in the
BGR 190 regulations which apply to Germany. Observe
national directives.
2.7.7 Storage
Store the cleaned mask dry and free of dust without risk of
deformation in the associated bag or carrier box.
Storage temperature -15
o
C to 25
o
C.
Keep away from direct sunlight or heat radiation.
Strictly follow ISO 2230 and national regulations for storage,
maintenance and cleaning of rubber products.
3 Use
3.1 Prerequisites

Check which protective clothing and which head protection
also needs to be worn during usage.

Follow local and national regulations on the use of respira-
tory protective devices.

The following requirements must be met so that the closed-
circuit breathing apparatus can be used:

The CO
2
absorber (refillable cartridge) was filled within
the last 6 months.

The CO
2
absorber (refillable cartridge or disposable
cartridge) was installed into the closed-circuit breathing
apparatus and leak-tested within the last 6 months.

The CO
2
absorber was transported on a vehicle for no
further than 500 km.

The compressed oxygen cylinder is full.

The leak-tightness and functional test on the closed-
circuit breathing apparatus showed no faults
(see chapter 4.5 on page 63).

Under the following prerequisites, the closed-circuit breath-
ing apparatus can be used multiple times by the same user
within 24 hours:

The officer-in-charge decides before each further use
whether the remaining oxygen supply is adequate for
use.

The cylinder valve is fully closed after every use.
This means that the breathing circuit is vented
automatically. The connecting piece is sealed with
the sealing cap.

The compressed oxygen cylinder and CO
2
absorber
are not replaced.

The closed-circuit breathing apparatus is stored upright
at a temperature of more than 0 °C.

At temperatures above +15 °C, the closed-circuit breathing
apparatus must be operated with an ice pack or cooling
cartridge.
3.2 Prior to first use
1. Perform a visual inspection: Is the closed-circuit breathing
apparatus intact and complete?
2. Test the closed-circuit breathing apparatus
(see chapter 4.5 on page 63).
3.3 Preparation for use
1. Open the closed-circuit breathing apparatus if necessary
(see chapter 3.3.1 on page 51).
2. Fit the CO
2
absorber if necessary (see chapter 4.4.8 on
page 61).
3. Fit the compressed oxygen cylinder if necessary
(see chapter 3.3.2 on page 51).
4. Insert the cooling cartridge or ice pack if necessary
(see chapter 3.3.3 on page 52).
5. Test the correct functioning of the closed-circuit breathing
apparatus (see chapter 3.3.4 on page 52).
Type of work to be carried
out
Before Use
Af
te
r use
Semi
-a
nnu
ally
Eve
ry 2 yea
rs
Eve
ry 6 yea
rs
Check by equipment wearer X
Visual inspection, function and leak
test
X
X
1)
1) gas-tight packed full face masks, every 2 years.
Cleaning and disinfecting X
X
2)
2) gas-tight packed full face masks, otherwise every 6 months.
Replacing the O-rings on the speech
diaphragm and the wiper shaft
X
Replace speech diaphragm X
Replace the drinking valve X
NOTICE
When the CO
2
absorber is fitted, the closed-circuit
breathing apparatus must be tested (see chapter 4.5
on page 63).
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