Smeg ER12150EU Instruction Manual page 12

Instructions for the installer
6.3 Arrangement of burners on hob
6.4 Lubrication of gas taps
After a while, the gas tap may become hard to turn or lock. If this
happens, it has to be cleaned inside and re-greased.
This must be done by a qualified technician.
BURNERS
1. Auxiliary
2. Triple crown
3. Double crown
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