Smeg C30GGRU Manuel D'Instructions

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Instructions for the user
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9.3
Removing the oven door gasket 
To thoroughly clean the oven, the oven door gasket may be
removed. Before removing the gasket, remove the oven door as
described above. Lift the tabs at the corners as shown in the
figure.
9.4
Lubricating the surface burner gas valves 
Over time, the surface burner gas valves may become stiff or jam. Clean them
internally and relubricate. This operation must be carried out by a qualified
technician.