8. Insert the key in the rear screw.
9. Act on the adjustment screw, turning clockwise to increase the pressure and
anticlockwise to decrease the pressure in the circuit.
10. Stop the delivery.
11. Start the group delivery and check the pressure displayed on the gauge (f).
12. Repeat the above operations until the required adjustment is obtained.
It is advised to adjust the pressure to a maximum pressure of 9 Bar.
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