1. When Slayer has filled completely, move the brew actuator left, into the “on”
position.
2. When water begins to run from the grouphead, return the brew actuator to
the "off" position.
‣
Leave steam actuator in the “on” position for “Step 9: Turn on Heating
Elements”.
Step 7: Calibrate Brew Pump Pressure
After machine testing at the Slayer studio, pump power is adjusted to near-
minimum capacity (10%) in order to prepare for calibration at your location.
Calibrate the brew pump pressure with the following steps.
Parts and tools:
•
Portafilter
•
Blind portafilter insert
Procedure:
1. Per previous steps, ensure that the steam actuator is pulled forward, into the
“on” position.
2. Tap the round touch sensor near the center of the screen to activate the
menu.
3. Swipe from left to right until the “Brew Pump Pressure” setting comes into
view.
4. Tap the round touch sensor to enter the “Brew Pump Pressure” setting. “Up”
and “down” arrows will appear on the right side of the screen.
5. Adjusting the brew pump pressure through the touchscreen interface is
accomplished by increasing or decreasing a percentage value that represents
brew pump pressure relative to maximum capacity. Use the arrows to adjust
the value in one-percent (1%) increments between “0” and “100”.
‣
To increase the pressure, increase the value.
‣
To decrease the pressure, decrease the value.
6. While still viewing the “Brew Pump Pressure” setting, set and test the pump
pressure with the following steps.
a) Replace portafilter basket with blind insert and lock in grouphead.
b) Move the brew actuator to the “full brew” position.
c) During "full brew", watch the brew pressure gauge and adjust the value
from step 5 until the pressure gauge registers 10 bar.
‣
A machine that registers 10 bar with a blind insert will register
approximately 9 bar when loaded with coffee that has been ground to
the appropriate degree of fineness.
d) To confirm your new setting, tap the round touch sensor.
‣
Leave steam actuator in the “on” position for “Step 9: Turn on Heating
Elements”.
NOTE: Due to the unique method by which Slayer espresso machines interpret
brew pressure, the pressure gauge will read 0 bar unless a loaded portafilter,
blind insert, or Scace device is locked in the grouphead.
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