How does a vibration pump ULKA work

How does a vibration pump ULKA work and what are the major defects.

[@austinado16]

Excellent video! Thank you for making it. I just purchased an espresso machine that had been in storage for years. The pump would not prime. I used a plastic syringe full of water, to force water through those check valves, by removing the filter from the water supply hose, and putting the syringe onto the hose. (I got the plastic syringe from a local drug store by asking them if they had syringes for giving pets medicine. This kind of syringe has no needle.) After the pump was force primed, it worked, but the flow was very low. I removed the pump, and took it apart as you show here. I found that small o-ring was hard as a rock. I replaced it with one from the plumbing department in the local hardware store, and now the pump delivers a lot of water! Saved myself $45.

[@ntelas46]

Thank you very much! It was the o-ring that was broken. I changed it with a new rubber one and the pump is now working great! This simple and easy to understand video saved me 50 euros. Again, thanks!

[@tdcrom]

Great video's on all the Delonghi Magnifica parts. I'm planning on buying a used one Friday and hope your videos will help if anything is wrong. Thank you.

[@tonchentayler9692]

Thanks for your clear explanation!! helped me with reassembling and understanding the theory 👍

[@Sim3k86]

Same here :D I think Milen is the only English speaking guy here on youtube that is describing those pumps with so much details and more important - shows what goes where ;) 👌 Thanks Milen

[@alexsofiartix5154]

Спасибо! Очень подробно и доходчиво обьяснил!

[@wolliholli]

Very professional and detailed explanation of this pump. Thanks a lot Milen. This video was a great help for me :-) I hope that you will make more videos like that e.g for pieces in saeco Incanto SUP021YR coffee machines. Thanks in advance :-)

[@inconspicuous-nobody]

Thank you thank you thank you! Keep making videos please :) subscribed!

[@fatimasamirzaidi]

very helpful, thank you

[@venom1st]

Super video. Very helpfull.

[@angelino4710]

Very good explicit. It's real

[@ruimvp]

Good video

[@thecarl168]

good explanation

[@PEPPAS.VASILEIOS]

hi milen.can i use a potensiometer in ulka pump?thanks

[@beanmeup9902]

Absolutely Brilliant!! :-) . . . Thank you Sir! :-)

[@user-fz8nr4mp6b]

Hello l have a problem with my coffee machine saeco intuita it stop working and there is 4 red light flashing l dont know where is the problem is the first time happend plz if u can advice me thx

[@gabrielsvl]

dude, I can replace my ex5 for an ex4? I know ex4 have less noise, can work for 20 bars, but pump less water, something like that

[@pasqualecaiazza4207]

Where can I buy spare parts for the pump ... Thank you

[@generalcohan4241]

How are the pumps different? How's invensys/ars c2 differ from a c3? Can I replace a c3 with c2

[@oswaldolimarosajr9734]

Grato.video😊

[@athurein26]

I think I have the same problem like that. My espresso machine is not pumping water. I haven’t used it long time. When I turned on the power, heard the vibration sound for a second and stopped. Also disappeared heating lamp in a second. Murphy Richard 15 bar espresso machine, model number is 47507

[@achillepanichelli2363]

where can i find components

[@affankhanhaider]

How to regulate water pressure of this pump????

[@oswaldolimarosajr9734]

Ok..good

[@georgevelichkov145]

Здравейте. Може ли някакъв email, да се свържа с вас . Имам питане за saeco xelsis ....

[@aleksandarstalev6144]

Can you tell me what should be the normal size of plastic ball in the pump ?

[@milenstoitsev6676]

4mm

[@aleksandarstalev6144]

@@milenstoitsev6676 can you share from where you could buy such ball and o ring seal (inside diameter 5mm)

[@aleksandarstalev6144]

I have already ordered them from ALI