Combustion Head Adjustment; Air Shutters Adjustments - Riello PRESS 300 T/N Instrucciones De Instalación, Montaje Y Funcionamiento

4.4

COMBUSTION HEAD ADJUSTMENT

On the base of the maximum delivery detect, from dia-
gramm C, the combustion head adjustment.
The adjustment should be made by turning the screw A
till the set-point (see diagram) is on the line with the
washer B.
D2743
4.5

AIR SHUTTERS ADJUSTMENTS

The adjustment of the air shutters shall be set each time,
with reference to the nozzles deliveries and the combustion
chamber pressurization.
Fig. 2 shows the positioning of the air shutters.
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 maintains the shutters of
nd rd
2 and 3 stage closed during the 1
and in the stop periods. Do not turn clockwise (–) the le-
ver to avoid crawlings of the air shutters, turning the lever
anticlockwise (+) the motor will be in different position
during the passage from 2
stop.
Orange lever:
nd
for 2 stage air shutters adjustment, it is adjustable both
in opening and in closing position.
Red lever:
rd
for 3 stage air shutters adjustment, it is adjustable both
in opening and in closing position.
Black lever:
it controls the opening of the 2
ways to anticipate the orange lever.
rd
The control of the 3
one of the cam next to the red lever.
5844
B
Set-point 6
A
st
stage operation
nd st
to 1 stage or during the
nd
stage oil valve. It has al-
stage valve is automatic through
kg/h
C
Fig. 2
Air shutter position 2
nd rd
2 and 3 stage air shutter motor
Sector A 1
Fig. 3
MV2 - Black lever
ST3 - Red lever
ST2 - Orange lever
0 - Blue lever
12 GB
Set-point
D2774
nd rd
and 3 stage
st
stage air shutter
Black lever has to anticipate
the orange one
Opening + – Closing
D2773
D2745