Riello PRESS 300 T/N ECO Installation, Use And Maintenance Instructions page 53

4.3 COMBUSTION HEAD ADJUSTMENT
In conclusion, on the basis of the maximum capacity, find
the combustion head adjustment from the diagram C.
The adjustment should be made by turning the screw A
till the set-point (see diagram) is on the line with the
plane of the bushing B.
4.4 AIR DAMPER REGULATIONS
The air dampers shall be set each time, dependent on the
nozzle capacities and the combustion chamber pressuriza-
tion.
Fig. 2 shows the positioning of the air dampers.
Fig. 3 shows the positioning of the cams of the motor.
st
1 STAGE adjustment:
manual regulation carried out by acting on the sector A,
fig. 2.
nd rd
2 - 3 STAGE adjustment:
carried out by acting on the coloured levers of the motor
fig. 3:
Blue lever:
adjustment not necessary. Positioned by the factory on the
vertical of the motor axis. It keeps the dampers of 2
rd
3 stage closed during the 1
stop periods.
Do not turn clockwise (–) the lever to avoid sticking of the
air dampers, turning the lever anticlockwise (+) the motor
will be in a different position during the transition from 2
st
1 stage or during the stop.
Orange lever:
nd
regulate the 2 stage air damper position and it is adjust-
able both in opening and in closing.
Red lever:
rd
regulate the 3 stage air damper position and it is adjust-
able both in the opening and in closing position.
Black lever:
it controls the opening of the 2
always be slightly earlier the orange lever. The control of
rd
the 3 stage valve is automatic through one of the cams
next to the red lever.
5841
B
Set-point 6
A
D2743
st
stage operation and in the
nd
stage oil valve. It must
kg/h
C
Fig. 2
nd
and
Air damper index 2nd - 3rd stage
nd rd
2 and 3 stage air damper motor
st
1 stage air damper section A
nd
to
Fig. 3
MV2 - Black lever
ST3 - Red lever
ST2 - Orange lever
0 - Blue lever
9
GB
Set-point no.
D2774
Black lever has to be slightly
earlier than the orange one
D2745
Opening + – Closure
D2773