Technical Specification; Maintenance - Sundstrom SR 520 Gebrauchsanleitung

2.2 Packing list
SR 520/SR 530
• Hood with breathing hose
• User instructions
• Cleaning tissue
SR 540 EX
• Face shield
• Breathing hose
• User instructions
• Cleaning tissue
2.3 Assembly
See also the user instructions for fan unit SR 500/SR 500 EX/
SR 700 or compressed air attachment SR 507 whichever is
used.
SR 540 EX
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.
2.4 Putting the hood on
See also the user instructions for fan unit SR 500/SR 500 EX/
SR 700 or compressed air attachment SR 507 whichever is
used.
SR 520
• Adjust the head harness by adjusting the length of the Velcro
strap. This is important for ensuring a good fit. Fig. 4.
• Grip the hose mounting with one hand and, with the other,
hold the strap in the lower part of the hood. Fig. 5.
• Put your chin into the hood. Fig. 6.
• Keep hold of the strap and pull the hood over your head with
the hand holding the hose mounting.
• Adjust the hood so that it seals all the way round your face
and so that it fits firmly and comfortably. Fig. 7.
• To ensure a perfect fit, it may be necessary to take off the
hood and adjust the head harness.
• Make sure that the breathing hose runs along your back and
is not twisted. Fig. 8.
SR 530
• Adjust the head harness by adjusting the length of the Velcro
strap. Fig. 4.
• Hold the hood upside down. Grip each side of the hood
opening with one hand. Fig. 9.
• In one movement, put your chin in and then the rest of your
head into the hood. Fig. 10.
• With the same grip, pull the hood down so that the head
harness fits firmly and comfortably around your head.
• Adjust the neck size of the hood by means of the elastic
neck strap. Fig. 11.
• Make sure that the breathing hose runs along your back and
is not twisted. Fig. 8.
SR 540 EX
• Raise the visor and put the face shield on. Fig. 13.
• If necessary, adjust the head harness in height by lengthening
or shortening the strap for the top of the head. Fig. 14a.
• If necessary, adjust the circumference of the head harness
by means of the knob at the rear of the head harness. Fig.
14b.
• 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. 15.
• 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. 16.
• Check that the breathing hose runs along your back and
that it is not twisted. Fig. 8.
2.5 Taking the hood off
See the user instructions for fan unit SR 500/SR 500 EX/
SR 700 or compressed air attachment SR 507 whichever is
used.

3. Technical specification

Classification according to ATEX-directive 94/9/EC and
IECEx scheme
See under par.6, Approvals.
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 %.
Service temperature when used together with fan SR 500 EX
is -10 °C to +40 °C.
Visors CE/EN
• The PC visor for the SR 540 EX has been tested to class B,
high-speed particles, in accordance with EN 166:2001.
• The PETG visor for the SR 540 EX has been tested to class
F, high-speed particles, in accordance with EN 166:2001.
Visors AS/NZS
• The PC visor for the SR 540 EX has been tested to AS/NZS
1337:1992, high impact V
• The PETG visor for the SR 540 EX has been tested to AS/
NZS 1337:1992, medium impact I.
Materials
Plastic parts are marked with the material code and recycling
symbol.
Weights
Model
Hood SR 520
Hood SR 530
Face shield SR 540 EX

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
Sundström cleaning tissues SR 5226 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.
Approx. weight
360 g
480 g
680 g
19