Expobar BREWTUS IV - Vibration Pump Pressure Adjustment

12
Vibration
Pump Machines
Note: Set
t
he brew pressure when the machine is cold to prevent
accidental
burns.
We set up the pump t
o obtain a brew pressure
of
9
Bars,
wit
h a flow of
approximately 2 ounces in 25 seconds.
To se
t
the brew
pressure,
insert
a
backflush disc into the portafilter and place it into the brew group. Then
,
raise the lever on the b
rew group to turn on the pump.
You can now adjust
the OPV to obtain 10
Bars
on the gauge.
Turn the adjustment screw
clockwise to raise the pressure and
c
ounter clockwise
to lower the pressure
.
The OPV is located through the ½” hole
,
behind the drip tray. Make sure
you put the drip tray back in place before you lower the lever
on the brew
group or water will blow out onto your counter.
Look in the
hole and locate the brass
adjustment screw before you insert the
screw driver.