Servicing Manual
23
Ill. 28
•
Unscrew the nozzle taking care not to touch
the electrode, as impacts could damage the
electrode ceramic insulators and impair good
ignition.
Ill. 29
•
Clean the nozzle blowing compressed air
inside it.
•
If cleaning is not sufficient, replace the nozzle.
Only use the nozzle sizes and types
recommended by the manufacturer (see setting
chart).
•
Reassemble the nozzle.
•
Reassemble the burner head and the inspection
cover.
3.9
CHECKING/CLEANING/REPLACING
THE BURNER HEAD AND THE WHIRL
DISC.
•
Remove the inspection cover.
•
Loosen (do not unscrew completely) the fixing
screws of the end disc on the combustion head.
Ill. 30
•
Slightly rotate the combustion head clockwise
so that the screw heads match with the big
holes on end disc. This will be helpful when
reassembling, as the screws will act as
supporting and centering means for the
combustion head.
Ill. 31
•
Extract the combustion head.
