Maintenance; Spare Parts - Sundstrom SR590 Gebrauchsanleitung

If the minimum flow is not achieved, check that
- the flow meter is held upright,
- the ball moves freely,
- the bag seals well around the hose.
4.2 Putting the shield on
See also the user instructions for fan unit SR 500/SR 700 or
compressed air attachment SR 507 whichever is used.
• Check that the scale number of your lens is correct for your
work. The shield is delivered with a welding lens with scale
No. 10.
• Make sure that everyone in the working area is provided
with suitable protection.
• Put the fan or compressed air attachment on your waist and
adjust the belt so that the equipment is located firmly and
comfortably at the back of your waist.
• Start the fan or connect the compressed air tube to the
control valve inlet.
• Start the fan and adjust the air flow to suit your work intensity.
• Raise the front piece and put the welding shield on.
• If necessary, adjust the head harness in height by lengthen-
ing or shortening the strap for the top of the head. Fig. 4a.The
sweatband should be fitted just above the eyebrows.
• If necessary, adjust the circumference of the head harness
by means of the rear knob. Fig. 4b. The head harness should
be fixed tight around your head.
• Lower the front piece by pulling the face seal down under
your chin.
• Adjust the neck size of the face seal by means of the elastic
neck strap. Fig. 6a. Insert a finger between your cheek/
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. Check carefully that no escaping
air comes out around the cheek and chin.
• Check that the front piece is in the fully down position, no
air should be coming out from the part above the forehead.
• Make sure that the breathing hose runs along your back and
that it is not twisted. Fig. 5.
4.3 Taking the shield off
Leave the polluted area before taking off the equipment.
• Take the welding shield off.
• Switch off the fan.
• Release the belt and remove the fan.
After use, clean and check the equipment.

5. Maintenance

5.1 Maintenance schedule
The schedule below shows the recommended minimum
requirements on maintenance routines, so that you will be
certain that the equipment will always be in usable condition.
Before use
Visual inspection
Functional check
Clean
Change the hose
5.2 Cleaning
The person responsible for cleaning and maintenance of the
equipment should have suitable training and be well acquainted
with this type of work.
20
After use Annually
• •
•
•
Remove the fan filter, battery and belt, and remove the welding
lens and protective lens from the shield before cleaning.
Sundström cleaning tissues SR 5226 are recommended for
daily care.
If more heavily soiled, the equipment can be carefully blown
clean with compressed air. However, make sure that dirt par-
ticles do not end up in the air intake of the fan. The equipment
can then be cleaned with a soft brush or sponge, moistened
in a solution of washing-up liquid or the like in lukewarm water.
!! Wipe the plastic protective lens carefully, since they are
sensitive to scratching.
!! Automatic welding lenses are very sensitive to moisture.
Use only a dry polishing cloth.
!! N.B. Never clean with a solvent.
5.3 Storage
After cleaning, store the equipment in a dry and clean place
at room temperature. Avoid direct sunlight or other sources
of heat. The fan filters should best be stored in a tight plastic
bag. The battery can be stored in the Sundström charging
station SR 506.

6. Spare parts

Always use genuine Sundström spare parts. Do not modify the
equipment. If pirate parts are used or if the shield is modified,
the protective function of the shield may be reduced and the
product approvals may be rendered invalid.
See also the user instructions for fan unit SR 500/SR 700 or
compressed air attachment SR 507 whichever is used.
6.1 Changing the welding lenses
The welding lens should be marked with the scale number
and approval symbol.
• Raise the welding lens flap. Fig. 6b.
• Use your fingers to release the spring. Fig. 7.
• Change the welding lens.
• Fold the spring back.
6.2 Changing the inner protective lens
The inner protective lens is fitted in the front piece behind the
welding lens flap.
• Raise the welding lens flap.
• Press the protective lens out with your fingers from the inside
of the shield.
• Fit the new protective lens from the outside.
Never use an inner protective lens made of glass - risk of injury
by glass splinters.
If a correction lens is used, this should be located on the inside
of the inner protective lens.
6.3 Fitting the correction lens
Correction lenses are available as accessories in four strengths
ranging from 1.0 to 2.5 dioptres.
• Raise the welding lens flap.
• Press the protective lens out with your fingers from the inside
•
of the shield.
• Place the correction lens so that it rests in the groove on the
•
sides of the opening.
• Fit the protective lens.
6.4 Changing the outer protective lens
•
The outer protective lens is located in front of the welding lens.
• Use a blunt object to press the short side of the protective
lens so that the lens is bowed and can be removed from its
mountings. Fig. 8.
• Fit a new protective lens.