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O-ring problem with Handpresso
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busch
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Joined: 14 Nov 2005
Posts: 4
Location: Denmark
Expertise: I love coffee

Espresso: Dual Boiler Vibiemme Domobar...
Grinder: Rancillio Rocky
Posted Sat Apr 23, 2011, 9:24am
Subject: O-ring problem with Handpresso
 

The Handpresso I use when travelling has just broken down on me with an o-ring problem on the piston as you can see on the picture. Unfortunately I got the unit as a gift from a business connection and have no shop to take it back to.

I found another o-ring that looks to be the same size in my toolbox and tried to use this as a replacement but it doesn't work. I am thinking that either my replacement o-ring isn't quite the same size or there is a problem with how I reassembled the piston and replaced the ring. I new a little help from other coffeegeeks
- Where are the o-rings placed on a functioning Handpresso?
- What are the exact dimensions of those o-rings?  

Hopefully with the correct size ring placed properly I can get my mobile espressobrewer running again.

-Soeren

busch: piston.jpg
(Click for larger image)
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inno
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inno
Joined: 26 Oct 2007
Posts: 1
Location: Fontainebleau, France
Expertise: Professional

Espresso: Handpresso Wild + 50 other...
Posted Mon Apr 25, 2011, 3:09am
Subject: Re: O-ring problem with Handpresso
 

Soeren, You should contact Handpresso at contact@handpresso.fr or the Danish distributor Coffeesystem coffeesystem@coffeesystem.com.

They will probably both be happy to send you a new o-ring. Don't forget to oil the pump when you get it fixed :-) : Click Here (www.handpresso.fr)
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short
Senior Member


Joined: 20 Jul 2011
Posts: 1
Location: ZŁrich
Expertise: I live coffee

Posted Wed Jul 20, 2011, 4:08am
Subject: Re: O-ring problem with Handpresso
 

I know this problem.

I was using the Machine at work and I drink around four coffees in a day. I've  used the machine exactly as shown in the users guide and I donít use it professional.
After two months of use (approx. 80 coffees), the machine started to go stronger at pumping. Five coffees later something broke down inside and I couldnít build the pressure anymore.
I brought the machine to the seller and he has sent it for repair. I did get it almost three weeks later back and I could use it again.
Then, two weeks later, I drank around forty coffees. The Machine broke again the same way.
On the Handpresso Website, Iíve found under support a maintenance sheet, which shows that the Machine should be lubricated from time to time with cooking oil. This sheet wasnít in the package that Iíve bought and itís not written how often this should be done. I donít imagine that this has to be done every tenth coffee.
I work as a mechanical engineer and I know on what should be paid attention, when using an O-ring. A good lubrification, a good quality O-ring and the right surface is a must for moving parts. The O-Ring is only a NBR and the surface is not made for moving O-Rings.

I begin to think, that the Handpresso is only externally well fabricated, that much Marketing and Commercials have been done and on the inner parts they tried to save money.

Since a half year I'm using the mypressi twist (http://mypressi.com/). The coffee ist much better then with handpresso and I'm quite content with it.
I think you should give it back and let them know, that they have to produce a better quality product.
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Crow
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Crow
Joined: 18 Dec 2008
Posts: 57
Location: Reno, Nevada
Expertise: Just starting

Grinder: Zass Havanna
Vac Pot: Cona Old no. 2
Roaster: Poppery II
Posted Wed Nov 27, 2013, 2:57am
Subject: Re: O-ring problem with Handpresso
 

deleted (can't post a link on this forum by cut and paste).
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Crow
Senior Member
Crow
Joined: 18 Dec 2008
Posts: 57
Location: Reno, Nevada
Expertise: Just starting

Grinder: Zass Havanna
Vac Pot: Cona Old no. 2
Roaster: Poppery II
Posted Wed Nov 27, 2013, 3:11am
Subject: Re: O-ring problem with Handpresso
 

sorry this forum mangles URLs so I cannot post link to the orings for the handpresso but they are available at ultimatespresso
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Ian
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Ian
Joined: 21 Jan 2003
Posts: 1,484
Location: England

Espresso: Euro2000,Rancilio
Grinder: Mazzer,La Cimbali
Vac Pot: Cona-->CraigA
Drip: Belgique for emergencies
Roaster: Primas with variac
Posted Wed Nov 27, 2013, 4:22am
Subject: Re: O-ring problem with Handpresso
 

Try here , is that the page you were looking at?

 
http://www.coffeegeek.com/forums/worldregional/uk/660580  - Green Coffee List
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