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17 Maintenance
Regular maintenance is a prerequisite for the long-term reliable and safe operation of a
warewashing machine. Maintenance which is neglected or improperly carried out increases
the residual risk of unforeseen damage to property and persons, for which no liability will
then be assumed.
Maintenance work should only be conducted if the machine has been switched off com-
pletely via the on-site power disconnection device.
Existing safety systems may not be removed!
IMPORTANT!
A functional test on all safety systems of the machine / installation is carried out during
every regular maintenance.
We recommend that you take out a maintenance contract with our manufacturer’s agent
in order to ensure a long service life.
17.1 Basic safety measures during normal operation
Observe the maintenance periods prescribed in the operating instructions!
Observe the maintenance instructions given in these operating instructions for individual
components!
IMPORTANT!
Before carrying out any maintenance or repair work, prohibit access to the operating area
to any unauthorized persons! Provide or display a sign drawing attention to the mainte-
nance or repair work!
Before implementing any maintenance or repair work the machine must be switched off
completely via the on-site power disconnection device and secured against reactivation
by using appropriate measures (e.g. via a padlock whose key is in the possession of the
person conducting the maintenance or repair work)! Failure to observe these precautions
can result in severe physical injury or damage to property.
IMPORTANT!
Before carrying out any maintenance and repair work, ensure that all the parts of the ma-
chine that may be touched have cooled down to room temperature!
Carefully dispose of any cleaning products that could harm the environment!
17.1.1 Before starting operations following maintenance or repair
work
IMPORTANT!
Before starting operations following maintenance or repair work, all initial tests must be
carried out as described in “Machine Settings for Initial Commissioning by the Service
Engineer”.
17.1.2 Observe the environmental protection regulations
IMPORTANT!
Legal obligations relating to the avoidance of waste materials and to their recycling/re-
moval in accordance with applicable regulations must be observed!
In particular, during installation, repair and maintenance work, materials that could pollute
water such as: Grease and oils, Cleaning fluids containing solvents, must not pollute the
ground or run into the sewerage system! These materials must be stored, shipped, col-
lected and disposed of in suitable containers!
17.2 Dosing units
The dosing units themselves are maintenance free in principle but the working life is
largely dependent on the chemical used.
17.2.1 Change of products
Change of product means that one rinse aid or detergent product is replaced by another.
The use of differing products alongside each other can result in break-downs.
Hose lines and dosing units must always be rinsed out with warm water.
