Smeg PVA96 Instructions For Installation And Use Manual page 12

5.3 Arrangement of burners on the hob
5.4 Lubrication of gas taps
With time it may happen that the gas taps get blocked and hard to turn.
Clean them inside and re-grease them. This operation must be done
by an authorised person.
14
Instructions for the installer
Burners
1 Auxiliary
2 Semi rapid
3 Rapid
4 Wok