Disassembly of Vacuum Breaker and Inspection of Internal Seat

Disassembly of Vacuum Breaker and Inspection of Internal Seat

Disassembly of Vacuum Breaker and Inspection of Internal Seat

Time Needed: 30 Min

Tools Needed: Two Crescent Wrenches


Warning: Turn off machine and purge the steam before completing this action.
Once Steam is purged and vacuum breaker has fallen, remove from the machine



With two wrenches, remove the body from the seat





Remove the internal teflon seat and inspect for damage or buildup



Remove the internal pin and inspect the gasket, it could be brittle which would need to be replaced. In a pinch, a steam tip o-ring can substitute, but is not a permanent solution.


Clean he internal seats, refit, and reinstall. 

Wrap three wraps of teflon tape around threads of vacuum breaker

Reinstall into the machine, only tighten until the vacuum breaker seats against the crush washer. 

    • Related Articles

    • 2020-02-001 Vacuum Breaker Change, Universal

      Please see PDF for information about the vacuum breaker change on all machines
    • Single Group Internal Diagram

      1. 3-Way Brew Solenoid 8. Vacuum Breaker 2. Needle Valve 9. Pressure Relief Valve 3. Inlet (Autofill) Solenoid 10. Brew Gauge 4. Steam Valve 11. Expansion Valve 5. Hot Water Valve 12. Steam Tank Ball Valve, Drain 6. Transducer 13. Brew Tank Ball ...
    • Replace Vacuum Breaker, V3

      What is a Vacuum Breaker? A vacuum breaker is a valve on the steam tank which seals after enough pressure has built up. As the name describes, the vacuum breaker creates a vacuum once sealed to prevent any back flow from steam steam wand when going ...
    • Replacing Anti-Suction Valve/Vacuum Breaker, Single Group

      Time Needed: 10-15 Minutes Parts Needed: 46000-50140 Vacuum Breaker/ Anti-Suction Valve 46000-50130 Gasket for Vacuum Breaker/Anti-Suction Valve Need to purchase these parts? Download the pre-filled order form and submit a ticket with the PDF ...
    • Brew Valve Leak Inspection

      Turn off the water Unplug the machine Remove the cup tray Remove the top front cover Open the brew valve drain Loosen remove the tube attached from the gauge to the brew tank, this will break the vacuum in the tank and allow it to drain. The brew ...