27
2 - Adjusting of primary air
of the top burners
By releasing the screw “M”, reset the air
adjuster “K” according to the instructions
see “Table for the choice of the
injectors”, where the distance between
injector and air adjuster is recommended
(in mm).
Before lowering the hob top, set the
burners on their sites and light them in
order to check whether the flames are
correct, as per the specifications given in
the next page. In case of incorrect flame,
lift or lower the air adjuster.
Fig. 8.5
M
J
K
3 - Adjusting of the minimum
of the top burners
In the minimum position the flame must
have a length of about 4 mm and must
remain lit even with a quick turn from the
maximum position to that of minimum.
The flame adjustment is done in the
following way:
– Turn on the burner
– Turn the tap to the MINIMUM position
– Take off the knob
– With a small flat screwdriver turn the
screw inside the tap rod to the correct
regulation (fig. 8.6).
Normally for LPG, tighten up the
regulation screw.
Fig. 8.6
Flame Flame
Flame
faulty in
correct
with excess
primary air
primary air
long, yellow
clear
short and sharp
and
interior blue
too blue interior
trembling
cone
cone tending to
detach
CAUSE
air regulating
correct
air regulating
tube, too
distance of
tube, too
closed
the tube
open
Flame correct
Flame faulty in
primary air
Flame with excess
primary air