Miele G 7823 - Manual (Page 36)

Soiling
Problem How to resolve it
The following substances can damage
elastomers (hoses and seals) and
plastics in the washer-disinfector:
– Oil, wax, aromatic and unsaturated
hydrocarbons,
– emollients,
– cosmetics, hygiene and care
products such as creams (analytical
applications).
– Refit the washer-disinfector with oil
resistant elastomeres.
– Depending on usage wipe the lower
door seal on the washer-disinfector
periodically with a lint-free cloth or
sponge.
Clean the wash cabinet and
accessories without a load using the
ORGANICA programme.
– Prepare the load
using the "OIL" programme (where
this is available) or use a special
programme that dispenses
emulsifiers.
The following substances can lead to a
heavy build-up of foam during washing
and rinsing:
– Some disinfecting agents and
dishwashing detergents,
– reagents for analysis e.g. for
microtiter plates,
– cosmetics, hygiene and care
products such as shampoos and
creams (analytical applications),
– active foaming agents such as
tensides.
– Thoroughly rinse items in water
beforehand.
– Select a cleaning programme with at
least one short pre-rinse in cold or
hot water.
– Depending on application use
de-foaming agents that do not
contain silicone oils.
The following substances cause
corrosion to stainless steel in the wash
cabinet on accessories:
– Hydrochloric acid,
– other substances containing
chlorides such as sodium chloride
etc.,
– concentrated sulphuric acid,
– chromic acid,
– Particles of iron and swarf.
– Thoroughly rinse items in water
beforehand.
– Place items drip dried into mobile
units, baskets and inserts and then
place these in the wash cabinet.
Chemical processes and technology
36