Maintenance Schedule; Spare Parts - Sundstrom SR 200 Airline Instrucciones De Uso

Temperature range
Storage temperature: from -20 to +40 °C and a relative humidity
below 90 %.
Service temperature: from -10 to +55 °C and a relative humidity
below 90 %.
Thread
Standard Rd 40 x 1/7" thread in mask and adapter.
Weight
710 g without control valve assembly and filters.
Working pressure
5–7 bar (500–700 kPa), measured at the connection to the
control valve.
4. Maintenance
Personnel who are responsible for maintenance of the equipment
must be trained and well acquainted with this type of work.
4.1 Cleaning
Sundström cleaning tissues SR 5226 that clean and disinfect are
recommended for daily care. If the mask is heavily soiled, use a
warm (up to 40 °C), mild soap solution and a soft brush, followed
by rinsing with clean water and drying in air at room temperature.
Proceed as follows:
• Remove the adapter/filter
• Remove the covers for the exhalation valves and remove the
membranes (two)
• Remove the inhalation membranes (three)
• Remove the head harness
• If necessary, remove the visor. See section 4.4.2.
• Clean as described above. Critical areas are the exhalation
membranes and the valve seats, which must have clean and
undamaged contact surfaces.
• Inspect all parts and replace with new parts as necessary.
• Leave the mask to dry, and then assemble it.
• Carry out leakage testing as described in 2.4.
NOTE! Never use solvent for cleaning.
4.1.1 Disinfection
See section 4.3 for disinfection intervals.
• After cleaning in accordance with 4.1, immerse the parts in a
suitable disinfectant for about 5 minutes.
• Rinse with clean water and allow to dry in air at room temperature.
• Leave the mask to dry, and then assemble it.
• Carry out leakage testing as described in 2.4.
4.2 Storage
After cleaning, store the equipment in a dry and clean place at room
temperature. Keep it away from direct sunlight. The flow meter can
be turned inside out and be used as a storing bag.

4.3 Maintenance schedule

The schedule below shows the minimum requirements on mainte-
nance routines, so that you will be certain that the equipment will
always be in usable condition.
Before
Visual inspection
Functional check
Cleaning
Disinfection
Membrane change
Head harness change
1) If the equipment is not for your personal use
26
All manuals and user guides at all-guides.com
After
Annually
use use
• • •
• •
•
• •
1
•
•

4.4 Spare parts

Use only genuine Sundström parts. Don't modify the equipment.
The use of non-genuine parts or any modifications may reduce
the protective function and will compromise the approvals granted
to the product.
4.4.1 Control valve
The control valve is a complete, sealed unit. Don't attempt to repair
or modify it.
4.4.2 Visor
The visor is mounted in a groove running around the visor opening
of the outer mask, and is held in place by one upper and one lower
frame half.
• Use a 2.5 mm Allen key to remove the two screws holding the
frame halves together. Fig.10.
• Carefully remove the upper frame half. Fig. 11.
• Carefully prise the top part of the mask off the visor, and remove
the visor from the lower groove. Take this opportunity to clean
the groove, if necessary. Fig. 12, 13.
• Markings are made to show the centres of the visor, frame halves
and mask. Press the new visor into the groove, making sure that
the centre markings are in line. To make assembly easier, coat
the slot with a soap solution or similar liquid.
• Carefully prise the top half of the mask over the visor, and make
sure that the visor is in the groove in the mask.
• Prise the upper frame half, making sure that the centre markings
are in line. Fig. 14.
• Fit the screws and tighten them alternately until the two halves of
the frame are firmly in contact.
• Carry out leakage testing in accordance with section 2.4.
4.4.3 Inhalation membranes
One membrane is in the centre of the inner mask on a fixed dowel.
• Prise off the membrane and fit a new membrane. Fig. 15.
Two membranes are fitted, i.e. one on each inside of the inner mask.
The dowels for these membranes are removable and should be
changed whenever the membrane is changed.
• Prise off the membranes and dowels.
• Prise the new membranes onto the new dowels.
• The membrane should rest on the larger flange, i.e. thread the
dowel with the membrane from the inside of the mask, through
the valve seat, with the smaller flange first. Fig. 16, 17.
4.4.4 Exhalation membranes
The exhalation membranes are mounted on a fixed dowel on the
inside of the valve covers on each side of the outer mask. The covers
should be changed whenever the membranes are changed. The
membrane in the air distributor need not be replaced.
• Snap the valve covers off the valve seats. Fig. 18.
• Prise off the membrane. Fig. 19.
• Press the new membranes onto the dowels. Carefully check that
the membranes are in contact with the valve seats all round.
• Press the valve covers into place. A clicking sound indicates that
the cover has snapped into place.
• Carry out leakage testing as described in 2.4.
4.4.5 Head harness
The head harness can be ordered as a spare part only as a com-
plete harness.
• Snap the strap holders of the head harness off the mask strap
mountings. Fig. 20, 21.
• Check that the straps are not twisted and fit the new head
harness.
4.4.6 Breathing hose
• Disconnect the coupling nipple connection at the facepiece and
at the control valve.
• Connect the new breathing hose to the facepice and to the control
valve.