Miele PG 8591 Operating Instructions Manual page 43

Process chemicals
Efficacy
The ingredients in process chemicals have
a strong influence on the longevity and
functionality (throughput) of the dispensing
system.
Process chemicals can damage elastomers
and plastics in the cleaning machine and
accessories.
The following process chemicals can cause
large amounts of foam to build up:
- Cleaning agents and rinsing agents
containing surfactants
Foam can occur:
- In the programme block in which the
process chemical is dispensed
- In the following programme block if it has
been spilt
- In the following programme with rinsing
agent if it has been spilt
De-foaming agents, especially silicone-
based ones, can cause the following:
- Deposits to build up in the wash cabinet
- Deposits to build up on the load items
- Damage to elastomers and plastics in the
cleaning machine
- Damage to certain plastics (e.g.
polycarbonate and plexiglass) in the load
items being processed
Chemical processes and technology
Measures
- Follow the process chemical
manufacturer's instructions and
recommendations.
- Carry out a regular visual check of the
dispensing system (suction lances, hoses,
dispenser 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
programme, 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 load items
and without de-foaming agent using the
Special 93°C-10'
- Please contact Miele for advice.
programme.
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