RCA RDW1830 Manuel D'utilisation page 24

2) Height setting - when basket is filled
(model depending)
The upper basket includes a mechanism
which enables the height of the basket to be
adjusted up (1) or down (2) without having to
remove the basket. Hold the basket on both
sides and pull it up or push it down, ensuring
both sides of the upper basket are in the
same position.
24
Lower Basket Folding Racks
Folding racks consisting of four parts that
are located on the lower basket of your
machine are designed in order to let you
place big items easier such as pots, pans,
etc. If requested, each part can be folded
separately, or all of them can be folded
and larger spaces can be obtained. You
can use folding racks by raising them
upwards, or by folding.