Toshiba EC042A5C-SS Instructions Manual page 15

SETTING UP YOUR OVEN
TURNTABLE INSTALLATION
a. Never place the glass tray upside down. The glass tray should never be restricted.
b. Both glass tray and turntable ring must always be used during cooking.
c. All food and containers of food are always placed on the glass tray for cooking.
Hub (underside)
Glass tray
Turntable shaft
EN-13
Turntable ring