Technical Specification; Maintenance - Sundstrom SR 540 Gebrauchsanleitung

Limitations
• The equipment is not approved for use in an explosive
atmosphere.
• If the face seal is not firmly in contact with the face, the
pressure necessary for maintaining the correct protection
factor will not be established.
• If the user is exposed to very high work intensity, a partial
vacuum may occur in the device during the inhalation phase,
which may involve the risk of leakage into the head-top.
• The protection factor may be reduced if the equipment is
used in surroundings in which high wind speeds occur.
• The seal of the head-top against the face must be assured.
This may be difficult to achieve if the user has a beard or
sideboards.
• Be aware that the breathing hose might make a loop and
get caught up by something in your surrounding.
• Never lift or carry the equipment by the breathing hose.
2. Use
2.1 Unpacking
Check that the equipment is complete in accordance with the
packing list and has not been damaged in transit.
2.2 Packing list
• Face shield
• Breathing hose
• Visor
• User instructions
• Cleaning tissue
2.3 assembly
See also the user instructions for fan unit SR 500 or com-
pressed air attachment SR 507 whichever is used.
Breathing hose
One end of the hose is provided with a flat gasket (Fig. 3a) and
the other with an O-ring (Fig. 3b). Connect the end with the
gasket to the face shield.
Visor
The visor has two fixing points, one of which is of over-centre
type and is used for tensioning the visor. The visor can be
changed without tools. Proceed as follows:
• Remove the peel-offs from the visor.
• Secure the new visor first to the fixed mounting and then to
the over-centre mounting.
• Tension the visor by moving the lever downwards as far as
it will go. Fig. 4.
• Check that the visor is firmly in contact with the visor opening
seal all round.
• Fit the closing panels by pushing them into place with your
fingers. A clicking sound indicates that they are in place. Fig.
5.
2.4 Putting the face shield on
See also the user instructions for fan unit SR 500 or com-
pressed air attachment SR 507 whichever is used.
• Raise the visor and put the face shield on. Fig. 6.
• If necessary, adjust the head harness in height by lengthening
or shortening the strap for the top of the head. Fig. 7a.
• If necessary, adjust the circumference of the head harness
by means of the knob at the rear of the head harness. Fig.
7b.
• Lower the visor unit by pulling the face seal down under your
chin. A clicking sound indicates that the visor unit has been
lowered fully. Fig. 8.
• Insert a finger between your chin and the face seal and run
the finger along the contact surface of the face seal all the
way round to check that it fits well against the face. Fig. 9.
• Check that the breathing hose runs along your back and
that it is not twisted. Fig. 10.
2.5 Taking the hood off
See the user instructions for fan unit SR 500 or compressed
air attachment SR 507 whichever is used.

3. Technical specification

Shelf life
The equipment has a shelf life of 5 years from the date of
manufacture.
Temperature range
• Storage temperature: from -20 °C to +40 °C at a relative
humidity below 90 %.
• Service temperature: from -10 °C to +55 °C at a relative
humidity below 90 %.
Visors CE/EN
• The PC visor has been tested to class B, high-speed
particles, in accordance with EN 166:2001.
• The PETG visor has been tested to class F, high-speed
particles, in accordance with EN 166:2001.
Visors AS/NZS
• The PC visor has been tested to AS/NZS 1337:1992, high
impact V
• The PETG has been tested to AS/NZS 1337:1992,
medium impact I.
Materials
Plastic parts are marked with the materail code and recycling
symbol.
Weight
Weight approx. 680 g.

4. Maintenance

The person who is responsible for cleaning and maintenance
of the equipment must have suitable training and be well
acquainted with work of this type.
4.1 Cleaning/disinfecting
Sundström cleaning tissues SR 5226 that clean and disinfect
are recommended for daily care.
If the equipment is more heavily fouled, use a soft brush or
sponge moistened with a solution of water and dishwashing
detergent or the like. Rinse the equipment and leave it to dry.
N.B. Never use a solvent for cleaning.
4.2 Storage
After cleaning, store the equipment in a dry and clean place
at room temperature. Store the face shield with the visor in
the fully raised or fully lowered position. Avoid exposing it to
direct sunlight.
4.3 Maintenance schedule
The schedule below represents the minimum requirements for
maintenance routines in order to ensure that the equipment
will always be in functional condition.
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