Adjustment of minimum level for the hob burners The burner is correctly adjusted when the flame is stable silent and goes out without any noise. When changing the type of gas check that the minimum level is correct. The air admission is correct when the flame is about 4 mm in length. The top burners do not need adjustment of primary air. Check that, turning the knob quickly from the maximum position to the minimum one, the flame does not go out. Hob burners To adjust the minimum level: � Light the burner � Turn the knob to the position of the minimum flame; � Remove the knob; � Unscrew or screw the by-pass screw (on the right above of tap shaft) until a regular small flame is reached. � For LPG screw completely the by-pass screw. Reassemble the parts following the same procedure in reverse. Check that, when turning the knob quickly from the maximum position to the minimum one, the flame does not go out. Replace the nozzles of the oven burners Oven burner To replace the gas oven nozzle, follow this procedure: � Check the table no.1 for diameter of nozzle; � Remove the oven removable base panel; � Remove the screw on the oven burner rod at the rear of the oven; � Remove the oven burner by pushing it backwards. � Replace the nozzle by means of a No 10 socket spanner; Reassemble the parts following the same procedure in reverse. Grill burner To replace the gas grill nozzle, follow this procedure: � Remove the grill burner after removing the fixing screw. � Replace the nozzle by means of a No 10 socket spanner; � Refit all parts and test.