www.francescoceccarelli.euLA PAVONI DIY MAINTENANCE

replacing group seals

 

 

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

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73 shaft piston

Guarantees the sealing of piston shaft

Leakage of water from the top of the group during brewing coffee

all

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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)

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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

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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)

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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.

INSTRUCTIONS FOR MACHINES WITH SHOWER PLATE REMOVEABLE

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Unscrew group upper nut and lock nut with a wrench 14mm

Remove one of the two rings benzig for each lever bolt, using a hook or small screwdriver and being careful not to scratch the lever

Remove the two lever bolt, the lever and roller nut

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Unscrew the bolts that fix group to boiler with a wrench 10mm

Unscrew the water pipe

Beat with a rubber mallet or protect the piston rod with a piece of wood, to eject piston and shower plate

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Remove the piston and the shower

Remove the piston and the shower

Remove the piston gaskets using a screwdriver. attention! the seals have an assembly to be respected (the seal higher must be inserted with the smooth side downward and the groove upward , the other seal must be inserted at the contrary)

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Remove the ring Seeger with the forceps

Remove the brass washer and plastic seal with a hook

Remove group to boiler seal

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If necessary, replace the lever bolt, because with  the use can be thin

If you need replace the washer and ring Seeger that may rust and break during disassembly

Clean all components of the group (helping, according to the party, with lubricant, polishing metal, sandpaper) and replace damaged parts. Put it all, if necessary using food grade lubricant

 

 

 

     

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