gruppo

The seals of the group providing the guarantee sealing required of the various component parts, each for a specific purpose.

With the exception of n.82 (shower plate) of which there are 3 types, the others remained unchanged over time for all models Europiccola, Professional and Mignon

FOTO	DESCRIZIONE	FUNZIONE	ANOMALIE	MODELLI
	73 – shaft piston	Guarantees the sealing of piston shaft	Leakage of water from the top of the group during brewing coffee	all
	77 - teflon sleeve	Guarantees the sealing of teflon sleeve	None (does not require replacement unless you unscrew the teflon sleeve)	models with teflon sleeve (dal 2001)
	80 - piston	Guarantees the sealing of piston	Water seepage from the group when the boiler is under pressure, too much effort in controlling the lever	all
	82 -shower plate	Guarantees the sealing of holder filter during the delivery of coffee	rotation of the holder filter excessive, leakage of water from the side of holder filter during brewing coffee	1960-1973 (first type) 1974-2000 (second type) Dal 2001 (ultimo tipo)
	85 – group to boiler	Guarantees the sealing of group to boiler	Leakage of water or steam from the junction between the group and boiler during brewing coffee	from 1974

group anni '70-'90 (without internal sleeve) new group (with internal teflon sleeve)

The replacement of seals in the group providing no particular difficulties for machines produced from 1970 onwards, as can unscrew the group ease maintenance operations. Is considerably more complicated for the machines earlier because, besides not being able to unscrew the group, is a sleeve made of brass screwed within the group, whose removal is possible only with a special key.