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Astoria SAE Junior (CMA/Laurentis/RIO) Refurbish Log - Page 2

Postby godlyone on Mon Nov 30, 2009 1:02 pm

Will do :)

But as far as the voltage/current leak... any ideas?

The chasis is grounded.. but why is there 50-60V between the kitchen sink and the machine chassis?
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Postby Stuggi on Mon Nov 30, 2009 2:39 pm

Is the outlet you connect the machine to grounded? Is the sink grounded?
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Postby godlyone on Mon Nov 30, 2009 2:48 pm

Well they SHOULD both be grounded.. it's a fairly new house.. but who knows how good of a job the builder did... Going to have to check that
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Postby CRCasey on Mon Nov 30, 2009 3:36 pm

Lets narrow down the cause. If you have your MM handy is the voltage you are seeing AC or DC? 50-60V is a strange voltage level to see.

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Postby Stuggi on Mon Nov 30, 2009 6:37 pm

Actually it isn't, I got the same in a house that I wired up for three-phase 230VAC. If I shut of one of the phases, I could measure out 70 VAC between the dead phase and ground. Not enough to drive a load, but enough to shock you a bit. It was due to induction, and that's the same you see here. You commonly see this between ungrounded computer shells and ground as well.
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Postby EspressoExpress on Mon Nov 30, 2009 11:28 pm

I just picked up my own Laurentis 2 group machine this past weekend. At first glance it looks impecable, I'll know more once I get power to it and pull my first shot. And I would like to add that I've been reading these posts for a while and now I'm glad I have a place to consult when consulting is needed. As for the manual, I have to search long and hard, unless someone knows where I may get one i would appreciate the tip.

Oh yeah, nearly forgot to add, the Astoria restoration is inspirational. Thanks for the step by step photo log.
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Postby godlyone on Tue Dec 01, 2009 12:03 am

For everyone who was looking for them, I emailed Dan and he hosted the manuals for us:

http://www.home-barista.com/downloads/A...Manual.pdf
http://www.home-barista.com/downloads/A...Manual.pdf
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Postby EspressoExpress on Mon Dec 07, 2009 9:36 pm

Hello godlyone,

I'm going to open up my boiler to see the condition of the inside. I like how yours came out. Good job! I was wondering how much citric acid you used vs. the water ratio. Did you eyeball it, or did you follow a specific recipe/formula? Also, how long did you let it soak?
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Postby godlyone on Mon Dec 07, 2009 10:02 pm

They say 1-2 tbsp/Liter

so I used about 6tablespoons for a large home-depot type bucket.

I kept checking on it.. at like 30 min, then again at the hour mark

I also took it out, washed it out with fresh water and then put it in again.. make sure to get in the heat exchanger too!

And another thing I learned is you REALLY need to get into every orifice.. especially the small ones inside of the solenoids!

I will update this thread with more pictures after my winter break starts (12/21) cant wait :D

Also im looking for any interesting ideas about what to do with the nasty multicolor panels
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Postby Stuggi on Tue Dec 08, 2009 4:14 am

Strip and paint black. :D
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