Performance Check; Maintenance Schedule - Sundstrom SR 700 Gebrauchsanleitung

Warning system/alarm signals
• In the event of air flow obstructions
• A pulsating sound signal will be heard.
• The red warning triangle of the display will
flash.
Action: Immediately interrupt the work, leave the
area, and inspect the equipment.
• If the particle filters are clogged
• A continuous sound signal will be heard for five
seconds.
• The red warning triangle in the display will
flash.
The warning triangle will flash continuously,
whereas the sound signal will be repeated at
intervals of 80 seconds.
Action: Immediately interrupt the work, leave the
area and change the filter.
• If the battery capacity is lower than 5 %
• A sound signal will be repeated twice at
intervals of two seconds.
• The yellow battery symbol of the display will
flash.
The battery symbol will flash continuously, whereas
the other signals are repeated at intervals of 30
seconds until about one minute remains before the
battery would be fully discharged. The sound signal
then changes to an intermittent signal.
Action: Immediately interrupt the work, leave the
area and change/charge the battery.
Start/Switch off
• Start the fan by pressing the control button once.
Fig. 23.
The symbols on the display will light up and the
sound signal will sound. The fan starts in normal
operating status. Fig. 24.
• Switch between normal and boosted operating
status with the control button.
• To switch off the fan unit, keep the control button
depressed for about two seconds.

3.4 Performance check

The performance check should be checked on every
occasion before the fan unit is used.
Check of the minimum flow - MMDF
• Check that the fan unit is complete, correctly
mounted, thoroughly cleaned and undamaged.
• Start the fan unit.
• Place the head top in the flow-meter.
• Grip the lower part of the bag to seal around the
upper attachment of the breathing hose. Fig. 26.
Note! You must not grip around the breathing
hose itself as this would either obstruct the air
flow or cause failure to achieve a proper seal.
Fig 25.
• Grip the flow meter tube with the other hand so that
the tube points vertically upwards from the bag.
Fig. 26.
• Read the position of the ball in the tube. This
should hover at a level with or slightly above the
upper marking on the tube, (175 l/min). Fig. 27.
If minimum flow is not achieved, check that
- the flow meter is held upright,
- the ball moves freely,
- the bag seals well around the hose.
26
Checking the alarms
The equipment is designed to provide a warning if the
air flow is obstructed.
• Provoke an air flow stoppage by gripping the top
part of the bag or by shutting off the flow meter
outlet. Fig. 28.
• The fan unit should then initiate alarms by sound
and light signals.
• If the air is again allowed to flow, the alarm signals
will automatically cease after 10-15 seconds.
3.5 Donning
• Take the fan unit on and adjust the belt so that the
fan unit is firmly and comfortably secured at the
back of your waist. Fig. 29.
• Start the fan.
• Put the head top on.
• Make sure that the breathing hose runs along your
back and is not twisted. Fig. 29.
Note that when a full face mask is used, the hose should
run along your waist and up along the chest. Fig. 30.
When a half mask is used, the hose should run along
your back and over your shoulders. Hose SR 951, see
fig. 31. Hose SR 952, see fig. 32.
3.6 Doffing
Leave the polluted area before taking the equipment off.
• Take off the head top.
• Switch off the fan.
• Release the belt and remove the fan unit.
After use, the equipment must be cleaned and
inspected.
4. Maintenance
The person who is responsible for cleaning and
maintenance of the equipment must have suitable
training and be well acquainted with work of this type.
4.1 Cleaning
Sundström cleaning tissues SR 5226 are recom-
mended for daily care. At more thorough cleaning or
decontamination - proceed as follows:
• Assemble the plug kit. See 3.2 f.
• 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.
• If necessary, spray the fan unit with 70 % ethanol or
isopropanol solution for disinfection.
NOTE! Never use a solvent for cleaning.
4.2 Storage
After cleaning, store the equipment in a dry and clean
place at room temperature. Avoid exposing it to direct
sunlight. The flow meter can be turned inside out and
can be used as a storage bag for the head top.

4.3 Maintenance schedule

Recommended minimum requirements on mainte-
nance routines so you will be certain that the
equipment will always be in usable condition.
Before use
•
Visual inspection
•
Performance check
Cleaning
Change of fan gaskets
After use Annually
•
•
•
•