Miele PG 8581 Operating Instructions Manual page 41

Associated process chemicals
Problem
The ingredients in process chemicals have
a strong influence on the longevity and
functionality (throughput) of the dispensing
systems.
Process chemicals can damage elastomers
and plastics in the machine and
accessories.
The following process chemicals can cause
large amounts of foam to build up:
- detergents and rinse aids containing
surfactants
Foam can occur:
- in the program block in which the process
chemical is dispensed
- in the following program block if it has
been spilt
- in the following program with rinse aid if it
has been spilt
De-foaming agents, especially silicone-
based ones, can cause the following:
- deposits in the wash cabinet
- deposits on the wash items
- damage to elastomers and plastics in the
machine
- damage to certain plastics (e.g.,
polycarbonate and plexiglass) in the wash
items
Chemical processes and technology
How to resolve it
- Follow the process chemical
manufacturer's instructions and
recommendations.
- Carry out a regular visual check of the
dispensing system (suction lance, hoses,
dispensing canisters, etc.) for any
damage.
- Regularly check the flow rate of the
dispensing system.
- Ensure that the regular cycle of
maintenance is observed.
- Please contact Miele for advice.
- Follow the process chemical
manufacturer's instructions and
recommendations.
- Carry out a regular visual check of any
accessible elastomers and plastics for
damage.
- The process parameters in the wash
program, such as dispensing temperature,
dosage concentration, etc., must be set
to ensure the whole process is foam-free
or very low-foaming.
- Please observe the process chemical
manufacturer's instructions.
- De-foaming agents should be used in
exceptional cases only; for instance, when
absolutely essential for the process.
- The wash cabinet and accessories should
be periodically cleaned without wash
items and without de-foaming agent using
the Special 93°C-10'
- Please contact Miele for advice.
program.
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