47
MAINTENANCE
Skilled staff has to perform yearly the following operations:
● Check the valve inside tightness.
● Filter cleaning.
● Fan and head cleaning.
● Check the position of the ignition electrode tips as well as the control electrode.
● Calibrate the air and gas pressure switches.
● Check the combustion by means of CO
-CO-FUMES TEMPERATURE bearings.
2
● Check all the gaskets and seal tightness.
To gain access to the main components, remove the cover, as shown in (Fig.1).
Combustion head maintenance should be made as follows:
● Close the gas cock and disconnect the gas train. Unscrew the screws 1 and remove the cover 2 (fig.1).
● Unscrew the screws 3 and the central pin 4 (fig.2).
● Hang the component holder plate into the service position 5 and effect combustion head maintenance
(fig.3).
fig.1
fig.2
fig.3