Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 Phone: 215-362-7000 Fax: 215-361-7434 email: sales@partsguru.com This Jura brew group refurbishing instruction guide does not suddenly make anyone an instant expert. Please make notes of your own for every step to separate the parts and wires. Tag the parts mark locations and even take pictures after every three or four steps. We cannot provide help for reassembling the brew group. om Refurbisjhing Jura Brew group is a precision work. Those who undertake this project have to be experienced in mechanical work. No responsibility is accepted for errors or damage to brew group or any injuries during repairs. op.p ar ts gu ru.c These instructions apply to all Jura brew groups. Although the drainage valve, located at the bottom of each group, may differ slightly based on the espresso machine model, the fundamental structure and design of the all the Jura brew groups are identical. sh 1. Jura brew group in the upright position. Ensure the espresso dispensing tube connector is removed completely. Also, disconnect the hot water silicone/teflon tube to the brew group from the thermo block. Remove the brew group from the machine and place it on an open table or area before disassembling it. Disassembling the brew group is the easy part. However, reassembling can be challenging for the first time users. We therefore recommend taking pictures or
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While fixing the machine, make notes, take pictures & use sticky notes as you disassemble each component of the brew group. 2. Take the flat head screw driver and insert between the gap, as indicated above, to unlock the top portion of the brew group. Be gentle while removing it as the hinges might break off while removing. Remove from all 4 corners. For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www.
3. Remove the top portion completely. Brew Group Side Cover 4. Remove the side covers. The side covers are snapped on to the brew group. Take the flat head screw driver, preferably, the sharpest edge, and insert between brew group side cover and brew group below the green marked area on the picture above. Slightly push the
flat head screw driver upward to remove the side cover. Be careful when removing the side cover for the red colored side as its hidden and can be challenging. Brew Group Drainage Valve 5. To detach the red marked side, insert the flat head screw driver to press the nose of the in the arrow direction and loosen it. Remove the side cover completely. Apply the same instructions to remove the side cover from the other side.
6. The brew group side railing can be removed easily after removing the side covers. 7. Remove the metal ring from both sides of the brew group. 8. Unscrew the brew group gear in the upward direction to completely remove it from the brew group spiral riser.
9. Slide out the top of the brew group plunger. 10. Push the lower piston lever to the left and then upward to detach the brew group drainage valve
11. The drainage valve should slide out easily 12. Removing the brew group shaft. Use the nose pliers to remove the C clip washers. Be careful as the E clip washer might jump off quickly as you remove it.
om gu ru.c sh op.p ar ts After removing E clip washers from both ends of the shaft, 13. simply pull out the shaft. 14. If the shaft is not easily removed, then use the flat surfaced tool to gently knock it out. Be careful as it can be little tricky. For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www.
15. Remove the central mechanical part of the lower piston (brown), as shown above. 16. Remove the metal shaft completely from the center lower portion of the brew group.
17. Remove the lower piston 18. Remove the brewing cylinder For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www.
19. Press the two arms of the gear drive carefully. Lower the gear drive and remove from the main brew group body. 20. Remove the old brew group piston o-ring using the flat head screw driver. Be sure to remove it gently. This lower gear is no sold separately. Be careful to not break it. Note the position before taking the lower piston out. Replace it in the same position, without turning it around.
21. Clean the o-ring groove on the piston. Lubricate the lower piston using the food grade lube. Replace the new piston o-ring. Apply lubricant cleanly around the piston and o-ring. This part is not sold separately. 22. Ensure the brew group piston o-ring is correctly replaced. For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www.
23. Disassembly the brew group riser tube. 24. Slightly turn to release the riser tube and pull it upward
25. Replace the two o-rings located at the top and the bottom of the riser tube. Slightly lubricate it. Be sure to replace the crema/check valve (the small white piece indicated with red arrow) at the bottom of the spring correctly otherwise optimum espresso extraction can be compromised.
26. Replace the brew group cylinder o-ring. 27. Clean the piston o-ring groove and apply food grade lubricant. 28. Correctly replace the piston o-ring
29. Re-install the brew gear drive. Make sure there is no dirt in the transmission. Ensure the brew drive gears are clean. 30. Ensure the brew gear drive transmission is lined up correctly as displayed above.
31. Apply food grade lubricant to the inside of the brewing cylinder. 32. Apply the food grade lubricant to the piston o-ring.
33. Move the brewing chamber inside the brew group body. 34. Ensure both pieces slide together until it stops. For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www.
35. Hold firmly and compress the gear drive and the brewing cylinder. 36. Attach the lower brewing plunger.
37. Loosen the right hand a little and with gentle pressure push the piston into the cylinder. 38. Place the brew group on the flat surface. Re-install the metal shaft.
39. Slightly lubricate the metal shaft when replacing it. 40. Replace both the metal rings on each side. Slightly bend the plastic tabs and metal rings while pushing. Ensure the metal rings are aligned correctly with the lower piston drive. For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www.
41. Move the piston by hands few times to examine the movement of the lower brewing plunger. If unable to move it, then reassemble correctly. 42. Replace the c clip metal washers to secure the metal shaft.
43. Apply the food grade lubricant to the brew group piston o-ring if you didn t already before inserting into the brewing chamber. 44. Note the position of the upper piston riser tube inlet. Ensure its aligned correctly with the riser tube.
45. Slide the brewing piston down. 46. Replace the brew group ring.
47. Ensure the brew group ring thread is facing down when reinstalling it.
48. Bring the brew group ring down to 4-5 circular threads. 49. Apply the food grade lubricant to the brew group side channels.
50. Replace the metal ring 51. Repeat step 50 on the other side
52. Hold both sides together by hand. Ensure the lower piston is in the position indicated by the arrow. 53. Replace the drainage valve inlet seal
54. Replace the brew group drainage valve. Make sure that it fits into the groove from both sides. 55. Replace the brew group side panels.
56. Manually test the movement of the brew group. Always turn the brew group ring down completely and back all the way up to ensure smooth circular movement. 57. Bring the brew group to its home position as shown above. Ensure the position of the brew group ring. For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www.
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JURA DRAIN VALVE REPAIR This document has been translated fro Russian to English. Please use it for illustration and make your own notes at every one or two steps. A: 2 x O-rings B: 1 x O-ring C: 2 x U-gaskets B Services Unlimited, Inc./ Parats Guru 209 Walnut street, Lansdale, PA 19446 Phone: 215-361-7000 Fax: 215-361-7434 email: sales@partsguru.com
.. ull the hairpin clip out. Remove the water inlet connector
Push the spring in as shown by arrow.
Follow the arrow display above Follow the disassembly as shown above.
Follow the disassembly as shown above. Pulling the Lip gasket seal. Replace the gasket as shown above.
Pry out the O-ring. Note the size of O-ring is different from the other O-rings.
Lip gasket Lip gasket pushed in place
Push gasket enough to leave the notch free This closing piece has male notch to fit in the female notch and prevent rotation.
.Follow the arrows for direction to seat the lip gasket and the pressure spring. Apply thin layer of lube. The smaller O-ring slides at the tip of water connection plastic tube. Wet the tube tip with lube.
Other small O-ring slides on the side of the outlet tube A thin film of lube should be applied to all O-rings and gasket before installing each.
Final assembled view of the drain valve.
Replace the drain valve in the Drain valve housing as shown above. Lock the drain valve with hairpin clip. Replace it in the brew group bottom.
RP13343 Impressa C9 pianoblack (CH) 654 Edition: 27/10/09 (9) Brew unit For parts, repairs & Tech support, contact: Services Unlimited, Inc./ Parts Guru 209 Walnut street, Lansdale, PA 19446 215-361-7000 - email: sales@partsguru.com Online store: www. Page 18 / 19