Smeg A1-2 - Manual (Page 30)

Instructions for the user
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10.4 Door glass
The door glass should always be kept clean. Use absorbent kitchen
paper to clean. In case of tough spots, clean with a damp sponge using
regular detergent.
11. EXTRAORDINARY MAINTENANCE
The oven may require extraordinary maintenance or replacement of parts
subject to wear such as seals, bulbs, and so on. The following
instructions describe how to carry out these minor maintenance
operations.
Before any intervention, disconnect the power supply of the device.
11.1 Replacement of light bulb
Remove cover A by twisting anticlockwise, replace bulb B with another
similar bulb. Refit the cover A.
Only use oven bulbs (T 300°C).
11.2 Removing the door
Open the door completely and fit the pins (supplied) into the holes from
the inside. Close the door to an angle of about 45°, lift it and remove it
from its seat. To replace, fit the hinges into the grooves provided, then
lower the door until it comes to rest and extract the pins. If the pins are
lost, two screwdrivers can also be used.