QM67 Dual Boiler Espresso Machine
Page 17
Maintenance – Continued
Group Gasket And Shower Screen Replacement
• The group gasket is a black rubber gasket that makes the seal between the portafilter
and the group head. We recommend replacing the gasket on a yearly basis. The QM67
uses an E61 8.5mm gasket. They can be purchased from our website at the link below.
https://www.chriscoffee.com/Group_Gaskets_p/groupgasketg.htm
• Replacing the group gasket requires the removal of the shower screen as well so we also
recommend replacing the shower screen at the same time. The E61 shower screen can
be purchased from our website at the link below.
https://www.chriscoffee.com/Group_Shower_Screens_p/groupshowerg.htm
• Before replacing the group gasket and shower screen the machine should be turned off
and cooled down so that the grouphead is cool to the touch.
Gasket and Screen Removal
• There are two ways to remove the group gasket and shower screen depending on how
old they are. If you replace the gasket yearly then the first method shown is
recommended. If the gasket is older and dried out then the second method shown will be
necessary.
• Method 1
In the picture to the right shows an indent that
goes around the perimeter of the screen.
Insert either a flat blade screwdriver or a spoon
into the indent and then carefully pry the gasket
and screen down. You may have to do this on a
few different spots to remove it.
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