Bosch WKD28350GB Installation Instructions, Instructions for Use, Programme Table Installation And Operating Instructions Manual page 25

Positioning
Levelling
.
Slide sheets facilitate the insertion of the washer-dryer into the installation
space. These can be ordered from the after-sales service, spare part no.
66 1827.
Moisten the slide sheets with a mixture of water and washing-up liquid
before sliding the washer-dryer into place. Do not use grease and/or oil.
Intense noise, vibrations and "wandering" may be the result of incorrect
levelling.
– All four appliance feet must stand firmly on the ground.
– The washer-dryer must not wobble.
– Check the levelness of the washer-dryer with a spirit level and correct
if necessary.
– The washer-dryer must not rest against the sides of the installation
recess.
– The lock nuts of the front appliance feet must be screwed tightly
against the housing.
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