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This listing is for a set of O-rings for the Eugster Frismag brew group used in most Jura, Jura Capresso, and AEG Espresso machines. These are the new improved red O-rings that Jura has been using since 2008 for the upper and lower piston of the brewing group. They are a direct factory replacement/improvement for the old black O-rings and are more service friendly thanks to only one size needed. (The black O-rings were less flexible and required you to use different sizes for the upper and lower piston).
The grease included in this kit is NSF/ANSI 51/61 certified and safe for use in food processing and in your coffee maker. Beware of equivalent kits using grease of unknown certification, origin, or freshness as it may not comply with United States food safety laws. The grease comes from a fresh batch with documented origin. Manufacturing Lot# H053M2H005 with a shelf life of 22-JAN-2027. Watch out for products of unknown origin or stale products - the grease in your brew group comes in direct contact with the coffee you're drinking.
The set contains:
You may notice that the kit does not include the aluminum cap for the drainage valve rod. The reason is because we do not recommend replacing the original white cap. Instead, you should do the following permanent and reliable fix: Simply add a drop of 5-minute Epoxy glue in the two slots on the original white cap. Twist the cap to let the Epoxy get everywhere inside the cap. Let dry. This repair guarantees that the cap won't ever come off.
To our knowledge the O-rings will work for these machines. Please note that this list is not complete:
Jura/Capresso: C5, C9, C50, C55, C60, C65, C70, C75, C90, C1000, C1300, C1500, C2000, C3000, D6, D60, E5, E6, E7, E8, E9, E10, E20, E25, E30, E40, E45, E50, E55, E60, E65, E70, E74, E75, E80, E85, ENA3, ENA4, ENA5, ENA9, ENA X1, F5, F7, F8, F9, F50, F70, F85, F90, F900, Giga 5, Giga 6, Giga W3, Giga X3, Giga X3, Giga X7, Giga X8, Giga X9, Impressa 300, Impressa 500, Impressa Evolution XT, J5, J6, J7, J9, J9.2, J9.3, J9.4, J10, J80, J85, J90, J95, J500, S7, S8, S9, S50, S55, S70, S75, S80, S85, S90, S95, WE6, WE8, X5, X6, X7, X8, X9, X30, X70, X90, X95, XF50, XF70, XJ5, XJ6, XJ9, XS9, XS90, XS95, Z5, Z6, Z7, Z8, Z9, Ultra, Cappuccinatore, M30, Scala, Scala Vario, Evolution, 201, 300, 401, 500, 601, 801, 2000, 3000, 4000, 5000, 6000
AEG Cafamosa: CF 80, CF 81, CF 85, CF 90, CF95, CF 100, CF 120, CF 200, CF 300, CF 400, CF 500
NOTE: This kit is NOT for the Jura ENA8, Jura ENA MICRO series, nor for the A-series that use smaller piston O-rings. This kit is the correct one for the ENA series, but not for the ENA 8 or the ENA Micro series.. If this is what you need, we have it for you in here
The O-rings ship with a 6g portion back of DOW 111 NSF51/61 food processing approved grease. (DOW 111 is the exact same compound as the OKS 1110 used in Europe when servicing Jura machines). The grease is used for lubricating the O-rings and the cylinder walls. By keeping the cylinder lubricated (relubricating every 6-12 months), these O-rings should last you up to 10 years or more. (The O-rings go bad when the lubricant wears off and they are run dry). The 6-gram pack of lubricant will last you a long time.
Instructions on how to open the S-series (C2000, C3000, S7, S8, S9, S9A, etc.): sgroup.pdf
Instructions on how to open the Z-series (Z5, Z6, etc.): z5bg.pdf
To replace O-rings in brew group:
IMPORTANT: Do not apply grease to the tracks where the four metal bearings run. These tracks must be clean and free of lubricant. This is important because the tracks are equipped with one-way feather stops, and if you grease the tracks the grease may cause the bearings to jump the stops and the brew group will malfunction. Grease should ONLY be applied to all O-rings and to the inside of the lower cylinder. Do NOT apply grease to any other parts. The plastic (Delrin) is self-lubricant. Applying grease to the mechanism will not do any good and results in coffee grounds and dirt getting stuck and eventually results in things gumming up.
BROKEN GEAR: A common problem with these brew groups is that the lower piston gear shaft comes loose. DO NOT GLUE IT! The material is Delrin (POM). Glue won't stick well and ruins the brew group by preventing proper future repair. The parts need to be chemically welded using Hexafluoracetonesesquihydrate or alternatively molten together (using an SMD hot air pencil works great). Contact seller if you have a broken gear that needs repair.
When testing the brewing group movement, ALWAYS turn the white gear fully in one direction until it stops and then turn it all the way in the other direction until it stops. Never change direction midway! Before installation, turn the gear counterclockwise all the way. Then clockwise until the brew group is in "coffee loading mode". (The cylinder is underneath the hole in the frame with the plunger in the bottom position, ready to be filled with coffee).
BLACK/RED SIZE DISCREPANCY NOTE: Prior to year 2007 the factory used two different size black neoprene O-rings for the upper and lower piston. In 2007, the factory switched to using the red silicone O-rings and one size only. For the past 10 years, I've had a couple customers that were confused when comparing the smaller of the old dried-out Neoprene O-ring to these new ones, and telling me it does not fit (without even trying them out). Don't let the ancient black O-rings mislead you. Jura did not switch to these new ones without reason. They are the correct size, guaranteed!
Shipping: In most cases your item will be shipped the same day if payment is received by noon eastern time (12 PM EST, 16:00 GMT Monday-Saturday). Items paid after this cutoff time may be shipped the next business day.
International customers: Please note that the default shipping is by First Class Mail. The US Postal Service does not guarantee timely delivery for this mail class, and although most shipments arrive within 7~14 days, on some occasions it has taken up to 30 days for international First Class Mail shipments to reach their destination. If you're in a hurry, please choose Priority Mail shipping!