Posted Tue Dec 27, 2011, 2:11am Subject: Ec155 "Annual"
While hardly a serious modification or restoration, I figured I'd post this here as a reference for anyone who wants to clean or repair their Ec155. Although I've been enjoying a new-to-me pid'd Silvia for a few months, 30 pounds is a lot for carry on luggage; that means I'm relying on my trusty Ec155 (weighing in at a significantly smaller 9 pounds) to provide my daily dose of 'spro this holiday season. But It is a bit old and has been sitting for a while, and I noticed some leaking steam and dripping when I first set it up. I figured a good, thorough stripdown and cleaning would help it out.
It is a very simple machine and not to daunting to take apart. After emptying the water tank and unplugging it, I removed the steam knob. It is friction fit, so I just loosened it off with a butter knife:
Once that is off, four screws (two on the top and two on the bottom) hold the rest of the top on.
Once I had the top off, I turned the machine on its side and removed the bottom panel. From here I removed two hoses connecting the water tank to the pump. I wonder if that blue hose is for an OPV? The bottom tray was pretty disgusting, it was nice to clean that out.
From there I flipped it back upright and marked the electrical connectors. Then I removed the 4 lowest screws around the boiler/grouphead piece and the tube that connects the pump to the boiler. Check the quality of the gaskets on each end of that tube, I had one break and leak water into the machine a little while back. It might be a good idea to replace them now. I also disconnected the steam hose.
I loosened the 4 bolts that hold the grouphead, gasket and boiler together and separated the parts.
I was surprised by the lack of build-up in the boiler despite my relatively loose descaling schedule. I cleaned the boiler and heating element as well as the gasket and the rubber arms that hold the portafilter in place.
Then I reversed my work, plugged everything back how it should be, and fired it up to see if it would still work. I added a little insulation around the steam line as it is now running close to some wires. I also bunched some syran wrap around the tube from the pump to the boiler to stop it from rattling against the shell so the machine would quit down a bit.
epengr Senior Member Joined: 1 Apr 2012 Posts: 46 Location: Saskatoon Expertise: Just starting
Espresso: NS Oscar Grinder: Baratza Vario
Posted Sun Apr 1, 2012, 2:06pm Subject: Re: Ec155 "Annual"
Thanks for sharing!
I'm about to try adding a cheap PID to my BAR32. I expect it'll be very similar inside, although probably a bit trickier to get into...
I've already replace the plastic panarello-thingy with a single hole tip and I can turn out reasonable foam (just starting to get the hang of stretching). I'd LOVE to replace it with a ball/socket steam wand though, have you gone any further with this idea? Any ideas for parts yet?
Posted Sun Apr 1, 2012, 11:07pm Subject: Re: Ec155 "Annual"
Hey David, welcome to CoffeeGeek! I haven't thought about it too much since the machine is home and I'm 1600 miles away at school with my Silvia, but I'm back to the DeLonghi this summer so I'm going to do it soon. I've seen some stiff twisty tubing that doubtfully, but could possibly, do the trick like this, but I'll probably just run to my hardware store and look for a socket with a hole in it that looks like this but properly sized. Then pull out the hot glue gun ;)
Have fun with the project and let us know how it goes!
There's a big difference between drinking coffee to wake up and waking up to drink coffee.
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