INSTALLATION - 55
91477A185/C
e
3. Remove the flame-spreader crowns and
relative burner caps.
4. Remove the screws that secure the hob and
the relative plates in correspondence with
each burner.
5. Remove the seals in correspondence with
the igniters and thermocouples that are
located under the plates that were
previously removed.
6. Unscrew the screws that fasten the hob to
the burner casing (the figure shows the 90
cm model as an example).
7. Remove the hob.
Replacing nozzles
1. Loosen the screw A and push the air
regulator B as far as it will go.
2. Use a spanner to remove the nozzles C and
install the new ones for the required gas
supply, following the indications given in the
relevant table (see “Gas types and
countries” or “Burner and nozzle
characteristics tables”).
3. Adjust the air flow by moving the air
regulator B to obtain the distance D given in
the corresponding table (see “Gas types
and countries” or “Burner and nozzle
characteristics tables”).
4. After adjusting each burner, reassemble the
appliance correctly.
Adjusting the minimum setting for natural or
town gas
1. Light the burner and turn it to the minimum
position.
2. Remove the gas tap knob and turn the
adjustment screw next to the gas cock
spindle (depending on the model) until the
correct minimum flame is achieved.
3. Refit the knob and verify that the burner
flame is stable.
4. Turn the knob rapidly from the maximum to
the minimum setting: The flame should not go
out.
5. Repeat the operation on all the gas taps.
Adjusting the minimum setting for LPG
Tighten the screw located at the side of the cock
spindle clockwise all the way.
Lubricating the gas cocks
Over time the gas cocks may become difficult to
turn and get blocked. Clean them internally and
If there is an Ultra-rapid burner, the nut
that secures the thermocouple to the
hob should be unscrewed (CH8).
The nozzle tightening torque must be no
more than 3 Nm.
Following adjustment to a gas other
than the one originally set in the factory,
replace the gas setting label on the
appliance with the one corresponding
to the new gas. The label is inserted
inside the nozzle pack (where present).
