CHAPTER 5: PNEUMATICS 5-5
ALPHA 552
3.3. Description of the elements
3.3.1. Air pressure switch
To guarantee an optimal work of the barfeed system, the service
pressure must be at least 5 bar (75 Psi).
The pressure switch serves to confirm that pressure is present and
adequate.
The air pressure switch is connected to the valve battery.
Settings
1. Set the base pressure on screw A.
2. Set the difference range on screw B.
3.3.2. Valves
Contact your LNS agent for further safety information before proceeding to any operation
on the valves.
By pressing the button A, the cylinders can be
activated manually. This button can be kept at the
activation position by pressing it down and turning
90° clockwise. This position can be released by
turning it 90° counter clockwise.
This manoeuvre may prove to be useful during
tests or maintenance. When the button is
released, the pneumatic cylinder returns to its
resting position (except for pneumatic cylinders
activated by double-effect solenoid valve YV2).
A
A
B
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