Riello P 140 T/G - Diffuser Disc Replacenet; Air Damper Adjustment

20035784
16
GB
Installation
5.9.1 Diffuser disc replacenet
Only for P 450 T/G
Depending on the desired output, you can use the ready-fitted
standard-issue diffuser disc or the disc supplied (Fig. 12).
To replace the diffuser disc, proceed as follows:
 unscrew screws 1)(Fig. 13);
 slide the ventilating part back on pins 2);
 first unscrew screws 3), then replace diffuser disc.
Refit all parts following the above procedure in reverse order.
5.10 Air damper adjustment
The air dampers adjustment shall be set each time in relation with
the nozzles delivery and the combustion chamber pressurization.
Fig. 14 shows the placement of the air dampers, as Fig. 15 their
correspondent hydraulic jacks.
To open or close the air dampers proceed as follows:
 loose the ring nut 1)(Fig. 16),
 turn clockwise the exagonal body 2) in order to decrease the
air flow, and counterclockwise to increase it.
The right adjustment of the air dampers may be detect by check-
ing the combustion results in the three stages of burner opera-
tion.
To check the combustion during the different stages, the commu-
tator should be set to the position corresponding to the burner
stage to be controlled.
Fig. 13
D3422
Fig. 14
1
st
stage
2
nd
stage
3
rd
stage
S8306
AIR DAMPER
Fig. 15
3
rd
stage
2
nd
stage
1
st
stage
S8307
HYDRAULIC
JACK
Fig. 16
S8308