Sundstrom SR 900 Manual Download

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SR900 — How to

Remove the filter and wipe the inside of the

filter holder. Pay special attention to the groove

in the filter rim when cleaning.

Remove the protective caps from the exhaust

valves. Pull out the membranes and wipe clean.

Wipe the valve seats before refitting the valves

and replacing the protective caps.

It is of critical importance that both membranes

and seats are clean and intact. No dirt or grime

must remain, and the parts must not have any

cracks, tears or other damage.

Remove the inhalation membrane from the filter

holder or hose attachment. Clean the membrane

and the valve seat. Replace.

Make sure ALL valves are properly fitted. Put the

respirator to your face and draw a few deep

breaths to make sure that the valves are in good

working order.

If the headstrap is very dirty, detach it, clean and

dry separately before re-attaching.

Tip: use a toothbrush to clean the strap.

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Summary of Contents for SR 900

Page 2: ...pper strap sits on the crest of your head If necessary unlock the buckles at your neck and tighten or loosen the tension of the strap Even out the tension of the head harness by hooking your fingers around the LOWER strap and pulling outwards a few times This will increase the lift of the upper strap supporting the weight of the filter IMPORTANT Never pull the head harness over a hard hat ear muff...

Page 3: ...into place To remove the filter holder turn it turn anti clockwise and pull away 1 4 turn Fit a filter Make sure the filter is facing the correct way arrow pointing towards the respirator Place the filter inside the rubber fitting ring of the mask Ensure that the flange of the filter fits into the groove all the way around the rubber fitting Fit a pre filter to the front of the main filter or comb...

Page 4: ...r in the pre filter holder Snap the pre filter holder with the pre filter onto the front of the main filter Check for leakage Make sure the mask is completely assembled with all parts intact including filter pre filter and pre filter holder Fit the respirator on your face Cover the centre hole in the pre filter holder with the palm of your hand Breathe in and hold your breath for about ten seconds...

Page 5: ...l the filter is free Wear your breathing hose There are two types of breathing hose single and twin Most SR900 configurations can use either the single or twin hose You can use the hose as is but if your work involves heat sparks or open flames you may choose to cover the hose with a protective flame resistant cover Both the single and twin hoses can be protected in this way Slip the protective co...

Page 6: ... the breathing hose connects to the SR900 respirator Fit the hose to the mask Insert the bayonet fitting of the valve end of the breathing hose into the bayonet fitting of the mask Angle the hose connector until the two fittings match Then turn the hose connector turn clockwise until it snaps into position The same procedure applies to both the single and the twin hose To remove the hose turn it a...

Page 7: ...ting the two protruding lugs into the corresponding slots of the bayonet fitting Turn the hose clockwise until it locks securely To remove the hose from the device turn the connector anticlockwise and pull out IMPORTANT Before using the SR900 respirator with any of the devices listed above make sure you are familiar with the device and know how to use it correctly Please consult the appropriate tr...

Page 8: ...ter holder to the belt attachment The square flange on the holder fits into the square hole on the attachment Slide the two parts together until the locking tongue locks into position You may choose to wear the filter holder horizontally or vertically In either case ensure that the hose connector is located on the upper side of the belt Fit a main filter or combined filters pre filter and pre filt...

Page 9: ...ent is fitted it is placed at your back directly behind you This helps keep the filter intake away from all welding hazards such as heat sparks and toxic metal fumes that may be released in the welding process The remote filter holder gives the SR900 respirator a much more shallow profile enabling it to easily fit inside most welding hoods or shields A spark proof and flame resistant cover is avai...

Page 10: ...d after each use a simple procedure that takes only a minute Cleaning may be done with warm soapy water and a soft cloth or by using Sundstrom s special sterilised hygienic cleaning tissues that keep your mask soft and flexible NEVER USE SOLVENTS OR ABRASIVES Clean the outside of the respirator checking for cracks or other damage Wipe the inside of the mask including any nooks and crannies inside ...

Page 11: ...d seats are clean and intact No dirt or grime must remain and the parts must not have any cracks tears or other damage Remove the inhalation membrane from the filter holder or hose attachment Clean the membrane and the valve seat Replace Make sure ALL valves are properly fitted Put the respirator to your face and draw a few deep breaths to make sure that the valves are in good working order If the...

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