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Date: 17 Mar 2007 06:46:55
From: LF
Subject: ULKA EX5: repair/ replace?
ULKA VIBRATORY PUMP EX5

This is a popular pump for espresso machines. I burned out this pump
on a Rancillio Nancy. I used the Nancy daily for more than I year,
set up with a timer, so it would be warmed up by the time I woke up.
I inadvertently left the pump switched on, the timer turned on the
machine, it pumped out all of the water, and I burned out the pump.
1) I noticed that 41W and 52W ULKA VIB PUMPS are available. The
original is a 41W. Any reason to stick with that rather than getting
the stronger 52W?=E2=80=A82) I found rebuild instructions for this pump
<http://www.myschiffman.org/cg/rebuild.html >=E2=80=A8Anyone know where I can
buy replacement parts for rebuild, if needed?=E2=80=A83) Anyone selling a
used ULKA EX5?=E2=80=A84) Is there an alternative pump I might consider?

Thanks,
Larry





 
Date: 17 Mar 2007 18:02:38
From: jim schulman
Subject: Re: ULKA EX5: repair/ replace?
On 17 2007 06:46:55 -0700, "LF" <fieman@gmail.com > wrote:

>ULKA VIBRATORY PUMP EX5
>
> I burned out this pump
>on a Rancillio Nancy ...

>1) I noticed that 41W and 52W ULKA VIB PUMPS are available. The
>original is a 41W. Any reason to stick with that rather than getting
>the stronger 52W??2) ...

The 52 watt is a little less powerful in terms of max pressure and
water debit, so it's a slightly better choice for machines with no
adjustable OPV. It's also a bit quieter. Otherwise, they are
interchangeable.

>Anyone know where I can
>buy replacement parts for rebuild, if needed??3) Anyone selling a
>used ULKA EX5??4) Is there an alternative pump I might consider?
>

These pumps are well designed and easy to take apart. If a spring or
valve seat has slipped, or some crud has gotten in, and they no longer
get to full pressure, they can be easily fixed. But if a part is
broken (like the coil), the entire pump needs to be replaced, since
nobody does spare parts anymore for items this cheap.


 
Date: 17 Mar 2007 13:18:42
From: LF
Subject: Re: ULKA EX5: repair/ replace?
>
> NON rebuildable (your coil is fried) -- not sensibly fixable anyway
> and the 41 does every bit as good a job.
>
> I have several used, from machines with very low hours.
> contact off line.
>
Dave,
Thanks much for answering my question, and giving a good option. This
is one of the things I truly appreciate about google groups/ usenet.
I asked a question, and got an answer from a professional -- all
within 15 minutes.

All the best,
Larry




 
Date: 17 Mar 2007 07:21:57
From: daveb
Subject: Re: ULKA EX5: repair/ replace?
On 17, 9:46 am, "LF" <fie...@gmail.com > wrote:
> ULKA VIBRATORY PUMP EX5
>
> This is a popular pump for espresso machines. I burned out this pump
> on a Rancillio Nancy. I used the Nancy daily for more than I year,
> set up with a timer, so it would be warmed up by the time I woke up.
> I inadvertently left the pump switched on, the timer turned on the
> machine, it pumped out all of the water, and I burned out the pump.
> 1) I noticed that 41W and 52W ULKA VIB PUMPS are available. The
> original is a 41W. Any reason to stick with that rather than getting
> the stronger 52W?=E2=80=A82) I found rebuild instructions for this pump
> <http://www.myschiffman.org/cg/rebuild.html>=E2=80=A8Anyone know where I =
can
> buy replacement parts for rebuild, if needed?=E2=80=A83) Anyone selling a
> used ULKA EX5?=E2=80=A84) Is there an alternative pump I might consider?
>
> Thanks,
> Larry

NON rebuildable (your coil is fried) -- not sensibly fixable anyway
and the 41 does every bit as good a job.

I have several used, from machines with very low hours.
contact off line.

dave