32
Removing the combustion head
1
Remove the top cover
C
;
2
remove the photoresistor from its seat;
3
unscrew the revolving connectors (
E
in figure) on the fuel pipes (use 2 spanners to avoid loosening the connections attached to the
distributor block);
4
loosen
VRT
screw to free the threaded rod
AR
, then screw out the 2 screws
V
holding the washer
R
and the screw
VRT
again;
5
remove the whole assembly as shown in figure;
6
clean the combustion head by means of a vacuum cleaner; to scrape off the scale use a metallic brush.
Note:
to replace the combustion head reverse the procedure described above.
Removing the oil gun
Once the combustion head is removed, as described before, remove the oil gun as foloows:
1
unscrew the connectors from the oil pipes (
E
in figure) using 2 spanners to avoid loosening the connections attached to the distri-
butor block);
2
loosen the screw
VB
3
remove the gun with the light oil nozzle holder.
4
clean the oil gun by means of a vacuum cleaner; to scrape off the scale use a metallic brush
5
replace the oil gun, if necessary.
Note:
To re-assemble, follow the procedure above in reversed order.
C
AR
VRT
R
VB
E
