Pump Adjustment - Espresso Single Group (January 2020 or later)

Pump Adjustment - Espresso Single Group (January 2020 or later)



Adjust rotary pump on Espresso Single Group
(January 2020 or later)


Time:
  1. 10 minutes
Tools:
  1. Flathead Screwdriver
  2. #2 Phillips Head Screw Driver
  3. Or Multi-Screwdriver (pictured)

Press circle to enter into programming

Scroll to pump percentage, confirm the pump is set to 90%

Actuate paddle to return to main screen
Remove Cup tray on top of machine
Remove two screws holding on the back panel

Being careful of the ribbon cable remove the back panel

Set the back panel to the side of the machine with the ribbon cable still attached and the screen active.
Alert
NOTE: The panel in the picture is resting on top of the side panel, this is only for illustrative purpose, rest the panel on the counter top leaning against the side of the machine.


Insert blind portafilter into the group


Actuate the group to full brew and note the bar pressure. The goal is for the bar pressure to be set to 10 bar. 


Use the bypass adjustment on the pump to adjust the bar pressure. Using a flat head screwdriver adjust the bypass. Clockwise to increase pressure, counter clockwise to decrease pressure.














Only run the pump in 20 second increments. After 20 seconds cycle the pump off. Any time you make an adjustment on the pump cycle actuator off and back on.

Once the bar pressure is at 10 bar, replace the back panel and the top cup tray. 

    • Related Articles

    • Pump Adjustment - Universal

      Setting & Adjusting Rotary Vane Pump - Commercial Objective: SLAYER two and three group commercial machines feature an external rotary vane pump. With an adjustable bypass screw, a technician can easily adjust the pump pressure of the brew circuit. ...

    • Single Group Pump Reset

      Unplug the machine. Take the cup tray off. Remove the back panel. Follow the wire from the pump to the board. Below is a photo of which port the pump plug goes in. Unplug the pump plug and leave unplugged for two minutes. Plug the pump back in, ...

    • Hard Reset - Single Group

      Hard Reset, Single Group Step 1: Press circle to enter programming Scroll to Advanced Settings and circle to enter Scroll to menu option Save/Restore settings, press circle to enter Arrow up to Reset Factory Default Press circle, arrow to yes, press ...

    • Single Group (Classic) Electronics Identification Diagram

      Single Group Classic Electronics Diagram Slayer Single Groups manufactured before January 2020. 1. Display Ribbon Cable 7. Group Cap Magnet Switches 2. Relay Harness 8. Steam Tank Level Probe 3. 24v DC Power 9. Transducer 4. Solenoids 10. SSR Steam ...

    • Stuck Bypass Adjustment Single Group Rotary Pump

      Time Needed: 10 Min Tools Needed: Adjustable wrench Turn off machine Turn off water Use a screwdriver to adjust the screw 1/2 way out of the carriage.  With adjustable wrench remove the fitting, be cautious as there is a spring and the parts could ...