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26
Replace the nozzles of the hob burners
Every appliance has spare nozzles for every
type of gas. The whole length of every nozzle is
marked in millimetres on the nozzle.
Hob burners
• Remove the pan support;
• Remove the caps and the burner crowns;
• Using a No 7 socket spanner unscrew the
nozzles and replace them with those required
for the type of gas in use (see table no. 1).
• Reassemble the parts following the same
procedure in reverse.
These burners do not need any primary air
regulation.
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.
fig. 29
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.
AFTER COMPLETION OF ANY REPAIRS,
ADJUSTMENTS OR CONVERSION THE
STATUTORY SAFETY TESTS MUST BE CARRIED
OUT.
fig. 30