LG ES551SP Operating Instructions Manual page 15

3. Trays and shelves must be
placed on the telescopic
slide arms with care so as to
avoid any accidental tipping
over. To prevent this, place
trays and shelves on the
telescopic slide arms as
shown in the illustration
below, so that the securing
pins on the slide arm catch
the tray or shelf to prevent
any slipping.
WARNING: If you should not do self-cleaning with these
telescopic runners and other all accessories in the
oven.
Because this self-cleaning is performed in high
temperature (about 500°C), the telescopic runners
and utensils may be a useless thing.
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