Sundstroms SR 63 User manual

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Operating instruction
SR 63 Compressed air
hood

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General information
Sundströms compressed air hood SR 63 is a continuous flow
compressed air line breathing apparatus in approved according to
EN 14594:2005.
If you have any questions regarding the selection and maintenance
of equipment, consult your work supervisor or get in touch with
the sales outlet.
You can also contact the Sundström Safety AB’s Technical Support
department.
Use of a respirator must be part of a respiratory protection
program. For advice see EN 529:2005 or AS/NZS 1715:2009.
The guidance contained in these standards highlights important
aspects of a respiratory protective device program but does not
replace national or local regulations.
When selecting equipment for SR 540 some of the factors that
should be taken into account are as follows:
•Type of pollutant
•Concentrations
•Work intensity
•Protection requirements in addition to respiratory protective advice.
Risk analysis should be carried by a person who has suitable
training and experience in the area.
Instructions for use for SR 63 should be read before use.

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2.1 Unpacking
2.2 Packing list
Check that the equipment is complete in
accordance with the packing list, and that
no transport damages have occurred.
• Hood with breathing hose
• Control valve
• Belt
• Flow meter
• Protective film
• User instruction
2.3 Functional check
On every occasion before the hood is
used, check that the air flow - measured
in the hood - is at least 150 l/min.
• Connect the breathing hose of the
facepiece to the control valve.
• Connect the compressed air supply
tube to the control valve.
• Turn the control valve knob anti-
clockwise as far as it will go, in
order to throttle the air flow rate to a
minimum.

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• Place the hood in the bag and grip the
opening of the bag so that it seals around
the breathing hose.
• Grip the flow meter with the other hand
and hold it so that it points vertically up
from the bag.
• Read the position of the ball in the
tube. It should float level with or just
above the marking on the tube.
If the flow rate is below the minimum
value, check that
• The flow meter is vertical.
• The float can move freely.
• The air supply is not restricted by kinks
or other restrictions in the hoses.
2.4 Putting the hood on
• Put the belt on and adjust the length.
• Arrange the control valve in a way that
allows easy adjustment of the flow rate
and a strict watch over the breathing
hose, i. e. it must not be placed on the
back of the waist.

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• Connect the breathing hose of the hood
to the outlet of the control valve.
• Unroll the compressed air tube and
make sure that it is not twisted.
• Connect the tube to the control valve
inlet.
• The hood is now being supplied with
air, and you can put it on.
If necessary, the width and height of the
head harness can now be adjusted.
• Adjust the neck width of the hood by
means of the elastic neck strap.

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• Use the control valve knob to set the air
flow rate to suit the work intensity.
In the fully closed position (turn anti-
clockwise), the flow is around 150 l/min,
while in the fully open position (turn
clockwise), it is around 240 l/min.
2.5 Taking the hood off
Leave the work area before taking the
hood off.
• Release the neck strap by releasing the
buckle. Grip the top part of the hood with
both hands and pull the hood
upwards/forward.
In emergency situations, the neck strap
can be released without releasing the
buckle:
Grip the neck strap with one hand on
each side of the buckle and pull firmly.

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Releasing the compressed air tube /
breathing hose
Both couplings are of safety type and are
released in two stages.
• Push the coupling towards the nipple.
• Pull the locking ring back.
4.1 Cleaning
Use a piece of soft cloth or a sponge
dipped in a solution of water and
dishwashing detergent or the like.
Rinse and leave to dry.
In the event of more serious soiling,
white spirit or similar degreasing
agent can be used. Then wash with
dishwashing detergent solution,
rinse and leave to dry.
4.2 Storage
After cleaning, store the equipment in a
dry and clean area at room temperature.
Avoid direct sunlight.
4.3 Maintenance schedule
The schedule shows the minimum
requirements on maintenance routines to
assure the user that the equipment will
always be in usable condition.

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4.4.1 Visor/frame
Proceed as follows to change the
visor/frame:
• Release the head harness which is
secured by means of two socket-head
screws at the top corners of the frame.
• Pull off the 8 rubber studs, and
remove the frame and visor.
• Straighten the frame or fit a new
frame, and place it on a flat surface
with the short side towards you. Fit 4
studs into the two furthest holes on
each side.

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• Place the hood over the frame and
insert the 4 studs into the
corresponding holes in the hood.
• Remove the protective films from the
visor and from the double-sided
adhesive tape.
• Fit the visor, with the tape facing
downwards, over the rubber studs.
Bear in mind that the holes for the head
harness screws must be oriented in the
same direction as the hood and frame.
Secure with the studs, possibly using a
pair of pliers.

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• Bend the frame to the required shape.
Align the vacant holes for the studs in
the frame, hood and visor. Insert the
studs and secure them by pulling the
studs from the inside of the hood.
The simplest procedure is to fit one
stud at a time.
• Press the visor towards the frame all
round, so that the tape will stick to the
hood material.
• Fit the head harness. Make sure that
the beads in the mounting
plate of the head harness are oriented
into the guide holes in the visor. Finally,
check that the work has been correctly
done.

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4.4.2 Head harness adjustment
The width and height can be adjusted
with the head harness in place in the
hood.
To adjust the width
Use the knob in the rear part of the
head harness to adjust the width.
Turn the knob clockwise to reduce the
width and anti-clockwise to increase it.
To adjust the height
The head strap of the head harness
consists of two halves.
The upper half runs in a groove in the
lower half. The position is determined
by means of a pin in the lower half that
engages in one of the holes in the
upper half.
4.4.4 Breathing hose
To change the breathing hose, proceed
as follows:
• Release the hose from the control
valve.

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• Release the hose from the hood by
cutting off the hose clip with a pair of
nippers.
• Thread the hose clip supplied onto the
new hose, and connect
the hose to the hose nipple of the hood.
• Secure the hose clip by means of the
pincers.
• By pulling the hose, check that it is
firmly secured to the hood.

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