CHAPTER 5: PNEUMATICS 5-3
ALPHA 552
2. F.R.L. UNIT
2.1. Description
The F.R.L. (Filtering-Regulation-Lubrication) combination serves to perform filtering, lubrication and
regulation of the pressure air before it enters pneumatic system.
The air must be furnished at a pressure of 6 bar and whenever possible, clean and dry.
2.2. Layout of the elements
2.3. Settings
1. Unlock the adjusting knob by pulling it upward.
2. To increase the pressure, turn it clockwise.
To decrease it, turn it in the opposite direction.
The operational pressure should be set at 5 bar.
3. When the settings are done, lock the adjuster by pushing it
downward.
Designation Description
A Pressure regulator
B Pressure gauge
C Inlet
D Regulated pressure outlet
E Decanter
F Lubricator
G Oil cup
H Oil refill plug
A
B
D
E
1
2
3
C
H
G
F
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