Maintenance; Cleaning; Storage; Maintenance Shedule - Sundstrom SR 570 Instrucciones De Uso

6. Maintenance

6.1 Cleaning

The person who is responsible for cleaning and maintenance
must have suitable training and be well acquainted with work
of this type.
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. Do not soak respirator inlet covering in cleaning
solutions or solvents.
Do not wipe the respiratory protection inlet covering with
strong solvents such as MEK, acetone, or toluene as those
may damage or distort materials.

6.2 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. Storage temperature: from -4°F to 104°F (-20 °C to
+40 °C) at a relative humidity below 90 %.
6.3 Maintenance schedule
Do not use the SR 500 Powered Air-Purifying Respirator with
respiratory protection inlet covering if the respirator fails any
of the requirements of the user inspection and performance
checks. Do not use the respirator until all necessary repairs
have been made and the respirator passes the performance
check. The following schedule shows the recommended
minimum maintenance procedures required in order to ensure
that the equipment is always in functional condition.
Before use After use Annually
Visual inspection
Performance check
Cleaning
Change of O-ring
for breathing hose
Change of gasket for
breathing hose
Change of exhalation membrane

6.4 Spare parts

Use only parts or accessories as described in these User
Instructions or on the NIOSH Approval Label for the SR 500
Powered Air-Purifying Respirator. Do not attempt to repair or
modify any component of the system except as described in
the User Instructions.
6.5 To change the visor
• Release and remove the visor. Fig 12.
• Fit the new visor. Start in the center. Fig. 13.
• Make sure that the visor is centered and end up in the groove
on the face shield.
• Secure the visor on the right and left side. Fig. 14, 15. Check
that the visor is properly locked around the edge of the face
shield. Fig. 16.
• •
•
•

6.6 To change the exhalation membrane

The exhalation membrane is mounted inside the valve cover.
Fig 17.
• Remove the visor. Fig. 12.
• Release and remove the valve cover. Fig. 18.
• Release and remove the membrane. Fig 19.
• Press on the new membrane in right position according to
the picture. Fig 20. Carefully check that the membrane is in
contact with the valve seat all round.
• Press the valve cover into place. Fig. 21-23.
• Fit the visor, see 6.5 To change the visor.

6.7 To change the face seal

• Release the face seal hooks from the head harness. Fig. 24.
• Push the face seal pins out and remove the face seal.
Fig. 25.
• Fit the new face seal. The marking on the face seal and visor
should be in front of each other. Fig. 26.
• Press the face seal all around the visor. Fig. 27.
• Make sure that the face seal pins is fixed in the visor. Fig 28.
• Secure the face seal hooks into the head harness. Fig. 29.
6.8 To change the head harness seal
• Release the face seal hooks from the head harness. Fig. 24.
• Remove the head harness seal. Fig 30.
• Fit the new head harness seal. Press down the tabs of the
head harness seal in the socket on the face shield. Fig. 31.
• Place the head harness seal so it fits between the sockets
of the sides of the head harness. Fig. 32.
• Check that head harness seal is mounted according to fig. 33.
• Secure the face seal hooks into the head harness. Fig. 29.
6.9 To change the sweatband
Fig. 34
• Remove the head harness from the face shield by releasing
•
the three fixing points. Fig 35.
•
• Remove the sweatband.
• Push in the head harness tongue into the new sweatband.
•
Fig. 36. Note how the sweatband is turned!
• Fit the sweatband into the head harness spikes. Fig. 37.
•
• Fold the sweatband around the bandeau of the head
harness and fit the spikes in the holes. Fig 38.
•
• Secure the two loose sockets of the sweatband onto the
head harness. Fig. 39, 40.
•
6.10 To change the head harness
• Remove the head harness from the face shield by releasing
the three fixing points. Fig 41.
• Fit a new sweatband, see 6.9 To change the sweatband.
• Fit a new head harness seal, see 6.8 To change the head
harness seal.
• Secure the both fixing points of the head harness on the
sides. Fig. 42.
• Secure the fixing point of the head harness in the front.
Fig. 43.
• Check that the head harness is locked in the fixing points
of the face shield.
• Adjust the head harness according to the instructions in
section 4.3 Donning.
7