Sundstrom SR 580 Installation and user guide

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 1

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 2
…assemble the SR580 head-top
BEFORE YOU START:
Check that the equipment is complete as shown
on the packing list and that it have not been
damaged during transit.
Packing list
•Helmet
•Lower visor frame
•Visor
•Face seal
•Breathing hose
•User instructions
•Cleaning tissue
Assembly of the face seal and visor does not
require any tools.
Do the following:
Fit the face seal on the inner flange in the lower
visor frame Start at one side, push the pin
upwards and control that the lip is fastened in
the lower visor frame.
Push along the face seal frame so it is securely
fastened on the lower visor frame. Control that
the pin and lip is fastened on both sides.
Remove the protective foil covering the visor.
Fit the visor into the lower visor frame. Applying
a little water to the seal will make fitting easier
Fit the lower visor frame to the helmet by sliding
it into position.
A ‘click’ indicates that the frame is locked in
position.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 3
Check that the visor has achieved a full seal
around the entire visor frame.
Attach the hooks in the head harness.
One end of the hose has an ø42 mm thread,
whilst the other is fitted with an O-ring.
Check that the thread is OK.
The threaded end is to be connected to the
helmet.
…put on the helmet
Check that the 6-point harness is secured
correctly.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 4
Raise the visor and put on the helmet.
If necessary, adjust the width of the helmet using
the knob located at the rear of the harness.
To adjust the height of the helmet interior, move
the pins between positions a and b. If the
interior is attached to pin a, the helmet will sit
lower, and on pin b the helmet will be higher. To
achieve the best fit, this adjustment can be made
at both the front and back of the helmet.
Lower the visor by pulling the face seal down
below your chin. A ‘click’ indicates that the visor
is fully lowered.
Insert a finger inside the face seal and move it
along the length of the contact surface to check
the fit.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 5
Make sure that the breathing hose runs down
your back and is not twisted. You can adjust the
angle of the helmet connection as required.
…clean the SR580
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 washing
detergent or the like.
Rinse the equipment and leave it to dry.
N.B. Never use a solvent for cleaning.
…store the SR580
After cleaning, store the equipment, dry
and clean, at room temperature. The
SR 580 should be stored with the visor
either fully raised or fully lowered. Keep
out of direct sunlight.
…schedule maintenance
The following schedule shows the
minimum maintenance procedures
required in order to ensure that the
equipment is always in functional
condition.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 6
At the first signs of wear, impact marks, damage
or aging of the material, the helmet shell or
harness must be replaced in order to ensure the
protective ability of the helmet is maintained.
This must be checked on a regular basis.
A helmet that shows signs of damage, e.g. cracks
or scratches that may reduce its protective
ability must be discarded. The helmet must also
be discarded if it has been exposed to stresses
during an accident or near accident, even if there
is no visible damage.
…replace the exhalation
membrane
The exhalation membrane is fitted on a pin
inside the valve cover. The cover must be
replaced at the same time as the membrane.
Do the following:
Remove the valve cover from the valve seat.
Pull out the membrane.
Check and, if necessary, clean the seal groove in
the valve seat.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 7
Press the new membrane securely on the pin.
Carefully check that the membrane is fully in
contact with the valve seat.
Press the valve cover firmly back into position. A
‘snap’ indicates that it is locked in position.
…replace the visor
No tools are required to replace the visor.
Do the following:
Unhook the face seal from the harness.
Remove the lower visor frame.
Remove the visor.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 8
Remove the protective foils from the new visor.
Fit the visor into the lower visor frame. Applying
a little water to the seal will make fitting easier.
Fit the lower visor frame to the helmet by sliding
it into position. A ‘click’ indicates that is locked in
position.
Check that the visor has achieved a full seal
around the entire visor frame.
Attach the hooks in the harness.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 9
…replace the face seal
The face seal plastic frame has a groove in which
a flange on the lower visor frame fits. The frame
locks into position using two pins –one at either
end - , which fit into a hole in the visor.
The face seal covering has hooks at either end
that attach to the head harness.
Do the following:
Unhook the face seal from the head harness.
Remove the lower visor frame.
Unfasten the face seal by pulling its frame until
the pins release from the holes in the visor.
Remove the face seal.
Fit the new face seal in the inner visor flange
with the centre markings aligned.
Press the face seal frame down so that the pins
lock into the holes in the visor. A ‘click’ indicates
that they have locked in position.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 10
Fit the lower visor frame to the helmet by sliding
it into position. A ‘click’ indicates that it is locked
in position.
Attach the hooks in the head harness.
…replace the sweatband
The sweatband is attached to the forehead strap
by a Velcro tape.
Do the following:
Unhook the face seal from the head harness.
Remove the sweatband.
Fit the Velcro tape with the rough side towards
the forehead strap and the groove facing
upwards.

SR580 supplied-air helmet with visor —How to Copyright © 2020 by The S.E.A. Group 11
Attach the face seal hooks in the head harness.
…replace the gasket
The gasket is located inside the helmet.
Do the following:
Unscrew the hose from the helmet.
Remove the gasket from the flange.
Fit the new gasket.