When re-installing the porta-filter it is important to ensure the male spigot on the grey disc (with the orange seal around it) snaps into the porta-filter valve assembly. You will see on the grey male part there is a recessed area and the valve assembly has a locking tang which snaps in. It is a tight fit but just watch where you put your fingers as to not damage any small springs or moving pieces on the valve assembly. Just my 2 cents...
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When re-assembling the porta-filter it is important to ensure the male spigot on the grey disc (with the orange seal around it) snaps into the porta-filter valve assembly. You will see on the grey male part there is a recessed area and the valve assembly has a locking tang which snaps in. It is a tight fit but just watch where you put your fingers as to not damage any small springs or moving pieces on the valve assembly. Just my 2 cents...
When re-installing the porta-filter it is important to ensure the male spigot on the grey disc (with the orange seal around it) snaps into the porta-filter valve assembly. You will see on the grey male part there is a recessed area and the valve assembly has a locking tang which snaps in. It is a tight fit but just watch where you put your fingers as to not damage any small springs or moving pieces on the valve assembly. Just my 2 cents...