Smeg LSP1449B - Manual (Page 33)

User instructions
Version C: the top basket can be set in three different positions on
both sides. The rack must be level on both sides.
To raise the basket lift it, pulling on the front edge (1), to the first or
second catch depending on the height required. To lower it, pull the
release lever (2).
This is also possible with the basket loaded, but in this case when
lowering the basket it should be held steady with one hand to avoid
knocking the dishes.
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