Hello Coffee-Lovers,

Just this weekend bought a secondhand in pretty good shape.
Wow what a solid piece of material, feels like my Volvo Amazon.
Needs some cleaning, few repairs, broken spring counter, switch front was broken.



Can you help me out on somethings?



How do I loosen the central bolt ?, on the top-end of the motor. Can't block the shaft.
Who can provide me with a manual ? printed or PDF, or a scan ?
How to as simple as possible covert it to non automatic ?
Who can help me to the little tray for the spilled coffee ?
When screwing in the top-grinder-plate, it hits after a few turns the next, how far turn it back from there ?


Thanks in advance for your help from the Netherlands,
with kind regards
Bernard

Hello,
Thanks for the post.

May-be I am a bit slow here, but this doesn't help me to loosen
the central bolt, which is already off in your posted pictures !

I need to get grip on the shaft, stop it from turning while removing
the bolt.

, it is a learning curve

On my Rancilio Rocky, I used a flat screwdriver pushed in the grinding chamber outlet, blocking one of the brass sweepers (part of the lower burr assembly). You can then unscrew the main bolt.

The required force on my Rocky was not very important so I had no fear of breaking something. I don't know if the same would be true for the MD50. You might be able to do the same trick from the top, to avoid having to remove the doser assembly.

Thanks guys, good tips,

Really appreciate your support as coffeelovers from overseas.
I will give it a try with the extended bolts soon.

This afternoon I found the "USE AND MAINTENANCE" guide on the internet.
If you Google "RD50 use and maintenance rancilio", it will appear almost on top as
a PDF, download.

Who can help me with the remaining question?

How to as simple as possible covert it to non automatic ?
Who can help me to the little tray for the spilled coffee ?
When screwing in the top-grinder-plate, it hits after a few turns the next, how far turn it back from there ?

Looking forward to hear from you.

Bernard

Hee hello,

That's nice I reply to myself,

Tried to loosen the central bolt with the long bolts in place.
Didn't feel good while turning the bolt slightly, at first the disk gave way.
The bolts were not tightened enough, oeps and the scraped the bottom.

Second attempt, didn't feel right, the screws push the brass disk up to the bottom
of the central bolt, and prevent it from turning easily.


I had a clear moment, ,
I made a paper donut model, to fit on the central-shaft.
Made from the model a version of thick rubber.
Placed this one in, then the second grinder-disk on top, and tightened it.
Now it was easy to loose the central bolt, without effort or damaging the bottom.





Learning while I drive.

Still need some answers from you,.......
hello

How to as simple as possible covert it to non automatic ?
Who can help me to the little tray for the spilled coffee ?
When screwing in the top-grinder-plate, it hits after a few turns the next, how far turn it back from there

Great Idea locking the burrs with a rubber doughnut
I have to replace the grounds tray as well and found it at http://www.espressoparts.com/RancilioMD5080GrinderWhole
I'm not sure how that source will work with you being in the Netherlands. You seem pretty resourceful, I bet you can invent something that works even better

I'm still working on the Manual Switch test

Really funny,

We are running the same project on both continents.

If this rubber donut technique is new,
everybody should know about it.

keep inventing