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Vibiemme Domobar Super Manual

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CAUTION: The cleaning products meant for backflushing must NEVER be used in the water reser-
voir. Using this cleaning agent in any way other than described here can damage your machine and void
your warranty.
Cleaning the Portafilter and Filter Basket - Pop the filter basket out of the portafilter body. Using a finger-
nail is not recommended as these commercial portafilters have a very stiff retaining spring inside. Using the back
edge of an old butter knife as a lever between the portafilter body and basket edge works quite well.
Dissolve a bit of espresso machine cleaner in hot water in a glass container. The solution can also be used to
clean the portafilter body as well as the portafilter baskets and any other similar parts soiled with coffee. These
parts can be disassembled and soaked overnight if necessary to remove stubborn stains, but soaking them for five
to ten minutes is usually more than sufficient for properly maintained parts.
As Necessary
Exterior Cleaning
NEVER use any abrasive cleaners or cleaning pads on your Domobar Super. They WILL scratch the surface.
A quality glass cleaner sprayed on a rag will usually do a good job of cleaning the outer surfaces, but do not spray
these in the area of the grouphead, and always wait for the machine to cool before cleaning the exterior. For more
difficult stains try alcohol on a microfiber rag, or really tough stains can be removed with a little Urnex Clearly
Coffee. If your machine has painted panels take care to use products that are compatible with powder coating. No
solvents should ever be used as these may permanently damage the powder coating’s sheen.
Grouphead Gasket Replacement
The thick, rubber gasket that seals the portafilter in the grouphead is subjected to a lot of heat and pressure.
Over time it will harden and the portafilter’s action will create a depression in the surface. If it begins to leak, the
first resolution is to give it a good cleaning as mentioned above. If that does not cure the problem then replace-
ment is the next step. Before attempting this it is a good idea to have the spare gasket as well as a spare shower
screen on hand.
The most difficult thing about replacing the grouphead gasket is removing the old one. Depending on just
how hard or old the existing gasket is will dictate the difficulty of removing it. First try removing it by gently
prying it out. Use a small screwdriver or a paint can opener. Take care not to damage the chrome surface of the
grouphead.
If that does not seem to be working, the next step is to use one or two drywall screws. Try using a single one
at first and screw it directly into the black, rubber gasket, then grasp it with a pair of pliers and pull it out (be care-
ful not to scrape your knuckles if the screw suddenly pulls out). Placing another, 180 degrees from the first will
allow pulling on one side then the other to work it out of the grouphead. If the screw just pulls out of the rubber,
use a larger-diameter wood screw, file off the pointed tip so it if flat, and screw it into the gasket in the same hole
made by the drywall screw until it touches the grouphead, and then continue turning the screw. As it penetrates
the gasket and hits the grouphead it will pull the gasket down the screw. If this isn’t working, try repeating the
process with a second wood screw in the other hole.
If you do this and the gasket breaks that is fine. You can then just pry it out with a small screwdriver or ice
pick. Use care not to mar the grouphead. It is a very good idea to have a spare shower screen on hand when at-
tempting this job. The screen is held in place by the gasket, and if you have to go at the gasket with vigor the
shower screen can be damaged. Having a spare on hand will limit downtime.
Once the gasket is out, remove the shower screen and give the area a good cleaning. Be sure that no old
gasket or coffee residue is left in the grouphead. If need be, use a brass-bristle brush to clean the area.
To install the new gasket, assemble the gasket over the shower screen and place them on a portafilter, Maneu-
ver the assembly into place and then simply lock the portafilter into place as you would when making espresso.
The cam-action of the portafilter locking into place will push the shower screen and gasket into place.
How often this needs to be done depends on many factors, but for in home use about once every six months
… 31 …


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