Maintenance
Dräger CPS 6900
29
5. Read off the pressure on the test unit at the end of the test
time.
If the pressure drop is less than or equal to 3 mbar, the
chemical protective suit is deemed sealed. Then disassemble
the test setup and the suit valves.
If the pressure drop is greater than 3 mbar:
1. Moisten critical points (such as seams, fastener system,
glove and boot connections) with soapy water.
2. Mark leaking areas.
3. Wash off the soapy water and thoroughly dry the chemical
protective suit.
4. De-aerate and repair the chemical protective suit.
5. Repeat the leak test.
Alternatively, the chemical protective suit can be returned to
Dräger for repair.
6.6
Check the seal on the suit valves
The test is described for the test device Porta Control 3000.
You can carry out the tests with other test devices, but the
indicated values must be observed.
Carry out the test according to EN 943-1:2015, 6.5.1, however
with 10 mbar overpressure, at constant room temperature
(20 °C ±5 °C).
The compressed air used must comply with the requirements
of EN 12021.
The required test accessories are listed in the order list (see
Chapter 11 on Page 36).
1. Remove the blow up valve with plug-in coupling from the
hose.
2. Connect the hose end to the test unit.
3. Insert the pumping ball on the relief valve into the black
hose in a way that the arrow on the pumping ball points
toward the relief valve.
4. Moisten the valve disc with clear water and fit.
5. Fit the test cap from the outside on the valve to be tested
and connect it to the test unit via the black hose.
6. Open the relief valve and create an overpressure of
+10 mbar with the pumping ball. Close the relief valve.
7. Set a test time of 1 minute and start the stopwatch.
8. Read off the pressure on the test unit at the end of the test
time.
If the pressure change is less than 1 mbar, the suit valve is OK.
In this case:
1. Check the next suit valve.
2. Disassemble test setup.
3. Fit the protective cap onto the suit valve.
If the pressure change is greater than 1 mbar:
1. Remove the valve disc and conduct a visual inspection.
The valve disc and valve seat must be clean and
undamaged.
2. If necessary, replace the valve disc (see Chap. 6.7.3 on
3. Repeat the test.
6.7
Special maintenance work
Check for leaks again after servicing and/or replacing parts.
We recommend that all repairs be conducted by Dräger.
6.7.1
Replacing gloves
Always replace gloves or glove combinations as follows:
1. Remove overglove and rubber ring (if fitted).
2. Lift the arm ring with the thumb and press the support ring,
on which the glove is located, out of the sleeve.
3. All gloves except glove combinations:
Pull the new glove onto the support ring and align at the
arm ring. The long axis of the elliptical support ring points
parallel to the hand surface.
Make sure that no wrinkles develop between glove and
support ring.
4. Insert a glove with support ring or new glove combination
through the open closure system into the chemical
protection suit sleeve.
5. Insert glove with support ring or new glove combination
through the arm ring and align:
The left glove goes into the left sleeve, and the right into
the right sleeve.
The hand surface points to the sleeve seam.
6. Push the glove unit into the arm ring until the edge of the
support ring is in contact with the edge of the arm ring.
The support ring must sit completely in the gap of the arm
ring.
7. Fit overglove (if desired):
Pull the K-MEX-Gigant overglove over the arm ring and
secure it with the corresponding rubber ring
Pull the Tricotril overglove over the arm ring and secure
it with the corresponding rubber ring.
8. Check the seal on the chemical protective suit (see
WARNING
If the chemical protective suit is equipped with a glove
combinations, the glove combinations must be
removed, disposed of and replaced with a new glove
combination. No assurance has been made that the
material will be able to withstand repeated chemical
exposure.
Do not use talcum for fitting the gloves. Otherwise the
gloves may slip out if the user exerts too much
pressure on the glove from inside by stretching too
much.
!
Summary of Contents for CPS 6900
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