MAINTENANCE MANUAL
Speedster
page 18
Replace group seal
The group seal is made out of rubber and will harden in time. We advise to replace the
group seal at least every 6 months or more often when needed.
Materials needed
Wide flat screw driver (or back end of a fork or spoon)
Replacement rubber group seal
Procedure
1.
Pry the group screen gently from the group using a wide screw driver as lever
under bayonet-ring and against the side of the group screen (see figure 9a). Pry
left and right for even distribution of force. The screen will fall out together with
the rubber group seal.
2.
Remove the rubber group seal from the group screen.
3.
One side of the rubber group seal has a somewhat more rounded surface. When
replacing the rubber group seal, make sure the rounded side of the ring is
inserted into the group (facing upwards). Push the group seal not all the way to
the end of the group screen (see figure 9b).
4.
Remove the filter basket from the filter holder. Place group screen with rubber
group seal on the filter holder and insert into group, pushing upwards. Turn filter
holder in bayonet, then remove filter holder.
5.
Insert the filter basket to the filter holder. Turn into the group to finish pressing
the rubber group seal into the group.
Figure 9a (left). Pry left and right with screwdriver to remove group screen and rubber
group seal.
Figure 9b (right). Mount group screen with empty filter holder and group ring not pushed
all the way on the group screen.
Clean group dispersion plate.
The group dispersion plate ensures more uniform wetting of the coffee bed. When dirty,
the wetting will become less uniform.
Materials needed
Wide flat screw driver (or back end of a fork or spoon)
Screw driver no.2
procedure
1.
Remove group screen with rubber group seal.
2.
Turn out 2 screws holding black POM dispersion plate (see figure 10).
3.
Pull down black dispersion plate.
