Generator Assembly 7313213931

Removed the old generator assembly and replaced with the new one.

The hardest part was loosening one of the bolts holding the generator assembly in place. I had to put a wrench on the nut at the underside and loosen it first. Otherwise I would have stripped the phillips headed nut.

The top cover does not fit quite the same as before I took the unit apart, but it works reasonably well.

I removed the screws for the panels, removed panels, tray, diffuser, water tank. Took note of all wire and hose locations. Removed 2 hoses from generator and wires from control board. Unscrewed 2 screws from the generator and the other 2 were too corroded to take out. Drilled the heads of the screws off and tapped them out. To replace the bad hardware, I used 8mm threaded rod, cut to length, and nuts. Reinstalled everything on reverse order and fired it up. Just like new again. Simple install. Would be about 30 minutes to repair if the hardware wasn't so corroded.

Used ereplacementparts online video step by step guide.
https://www.youtube.com/watch?v=CpGAVvaZzEA

Followed video instructions on ereplacementparts.com site.
Repair would have gone faster but I was moving pretty slow trying not to make mistakes.

The link to the video is: http://www.ereplacementparts.com/article/14561/How_to_Replace_the_Generator_Pump_on_a_DeLonghi_Magnifica_Espresso_Machine.html

Generator:
1. Unplug machine, and remove side and rear panels
2. Losses wire bundles and disconnect electrical connections to circuit board
3. Loosen four mounting screws on top of generator. Secure nut and washer from below with fingers.
4. Disconnect hard tube fluidic connections from back and bottom by pulling out securing pins with pliers. Take care to remove o-ring from within connector
5. Pull rubber tube from side and remove old generator
6. Replace with new generator, and reinstall connections in reverse order. Holding the washers and nuts from underneath while threading bolts requires care. A small amount of grease can be used to stick the washer and nut to your finger.
7. Replace panels.

I've had this machine for almost 10 years. 3 years ago it developed a leak. I looked at repairing it but the parts were not available at the time. We bought a new Delonghi (the 3300) and I kept the 5400 for parts as it looked like all the internal mechanical components were the same. We now purchased a cabin in the woods and wanted good coffee. These machines are pretty pricey these days so I decided to take a stab at repair again. Thanks to e-replacementparts I was able to get the parts I needed for a reasonable price. To get at the generator, first unplug the unit, then you need to remove all the outer housing panels (this should be obvious). Then the generator has 4 long machine screws holding it in place as well as 6 wires that need to be disconnected. Two are power, two are sensors and 2 are for a microswitch. I just followed the leads back to where they connected and took photos of where they plugged into so I could plug in the new generator. After unplugging the wires you'll need to remove the 4 long screws. A Phillips screwdriver and some needle nose players for the small nuts on the bottom. A couple of these nuts are hard to reach and you will need patience upon reassembly and nimble fingers. Once the screws are removed, there are two water connections to remove. they are held on by small metal clips. just pull the clip out with your pliers and the water line will come out. then remove the generator slowly. You will note a black rubber water (drain) connector on the underside of the unit opposite the side water connector. You will want to attach that one first upon putting in the new generator. Reassembly is as they say the opposite of removal. Some tips. Replace the o-rings on the two water lines (order them at the same time) or they will leak as I learned. Attach the black rubber drain line and the side water line before screwing the generator down. Once set in place put all the screws in loosely to get it lined up as it is a tight and precise fit. Get all of the screws tightened down - this is important as the generator is part of the coffee "press" and will be pushed up on when making coffee. After reassembly carefully put the water tank in (without the side panels on and start the machine and make a coffee or two. Use a flashlight to check for leaks around the generator. Be careful not to touch anything as the generator gets very very hot (it may smell a little hot at first use) and there are exposed electrical wires that pose a shock hazard. Once you confirm you have no leaks unplug again and put on the top and side panels. You are now good to go. Use this time to clean the unit thoroughly and lubricate the press o-rings with food grade lubricant. Good luck!

Watched the video on ereplacement parts and followed the instructions. Took me some time to get old part out as the screws were coroded and getting the screws out from tiny spaces.

1. unplugged power.
2. removed all plastic covers.
3. disconnected wires, and water tubes from Generator Assm.
4. removed (4) screws and nuts from Generator.
5. pulled off Generator.
6. replaced with new Generator.
7. (2) forward nuts and screws were easy to install, (2) rear, NOT SO EASY.
8. everything else reverse order.

Followed the website video. Instead of using Vaseline to help keep the nut and washer together as per the video, I fed some sewing thread through the hole on the top of the generator assembly and through the washer and nut at the bottom .I Held both ends of the thread to manoeuvre washer and nut to help keep them in place so I could get the nut threaded. Once the nut started to attach onto the bolt, I removed the sewing thread and tightened it all the way. The area was very space restrictive.
Bought some extra o rings and sure enough foubf some minor leaks, replaced them with o rings I purchased. Sure glad I found this site.

Referenced eReplacements YouTube instructional video.
https://www.youtube.com/watch?v=CpGAVvaZzEA