Riello P200 T/N Installation, Use And Maintenance Instructions page 12

The adjustment of the air shutters shall be set each time, with reference to the nozzles deliveries and the combustion
chamber pressurization.
Fig. 2
Fig. 2 shows the positioning of the air shutters.
Fig. 3 shows the positioning of the cams of the motor.
Air shutters adjustment
st
1 stage: manual regulation carried out by acting on the sector A (fig. 2).
nd rd
2 -3 stage: carried out by acting on the coloured lever 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 2
closed during the 1st stage operation and in the stop periods.
Do not turn clockwise (-) the lever to avoid crawlings of the air shutters, turning the lever anticlockwise
(+) the motor will be in different position during the passage from 2
nd
Orange lever: for 2
rd
Red lever: 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
The control of the 3
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AIR SHUTTERS ADJUSTMENTS
st
Sector A 1 stage air shutter
nd rd
2 and 3 stage air shutter motor
Air shutter position 2
stage air shutters adjustment, it is adjustable both in opening and in closing position.
nd
stage oil valve. It has always to anticipate the orange lever.
rd
stage valve is automatic through one of the cam next to the red lever.
Fig. 3
MV2 - Black lever
ST3 - Red lever
ST2 - Orange lever
0 - Blue lever
nd rd
and 3 stage
10
Black lever has to anticipate
the orange one
Opening + – Closing
nd
nd
to 1st stage or during the stop.
rd
and 3 stage