22
4.2.1 WIPING OFF THE ASH
Every time the machine is stopped, the ash on the bottom of the combustion chamber must be removed
4.2.2 CLEANING THE FLUE
To proceed with cleaning you must:
- Unplug suction (pos. A in fig. 19).
- Unplug the flue from the suction (pos. B in fig. 19).
- Remove soot from the flue with an iron brush.
- Reassemble flue with suction.
- Plug suction.
4.2.3 CLEANING THE HEAT EXCHANGER
To proceed with cleaning you must:
- remove back protection panel (1 in fig. 19) by unscrewing it.
- unplug suction (pos. A in fig.19).
- remove the rest of the back protection panels by unscrewing them (pos.2, 7 fig.19).
- clean the exchanger’s pipes with a helix-shaped iron brush, from the front of the machine (pos. 4 in
fig.19).
- do the same for the descending vertical pipes (pos.5 fig.19).
- install back the protection panels (part. 1,2 and 7 fig.19).
- plug suction (pos.A fig.19).
- plug flue with suction.
4.3 FANBELT STRETCHING (models F120-F240 only)
You should periodically stretch the fan belts.
To access the fan belts, remove the protection grids (part. 6 fig. 19).
- Regulate the fan belts’ stretching with the registry screw (fig. 20).
- In case this doesn’t work, replace the belt.
- At operations complete, replace the protection grid.
FIG.20
Motor pulley
Support plate
Engine
Fan
Belt
Return pulley
Registry Screw
