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

November 30th, 2009, 12:02 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?

#12: Post by **Stuggi** » November 30th, 2009, 1:39 pm

Is the outlet you connect the machine to grounded? Is the sink grounded?

November 30th, 2009, 1:48 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

#14: Post by **CRCasey** » November 30th, 2009, 2:36 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.

-Cecil

#15: Post by **Stuggi** » November 30th, 2009, 5:37 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.

November 30th, 2009, 10:28 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.

November 30th, 2009, 11:03 pm

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

/downloads/ ... Manual.pdf
/downloads/ ... Manual.pdf

December 7th, 2009, 8:36 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?

December 7th, 2009, 9:02 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

Also im looking for any interesting ideas about what to do with the nasty multicolor panels

#20: Post by **Stuggi** » December 8th, 2009, 3:14 am

Strip and paint black.