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Guides and repair information for Braun coffee makers, which include the name “Braun” in capital letters at the top of the coffee makers’ front face.

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How do I open up this five slot screw/bolt and fix my coffee grinder?

Hey! I have a Braun coffee grinder type 3045. This morning, it blew a fuse and I saw a small blue spark, so I want to take it apart and see if I can spot the fault. Thanks to a diagram and a photo of a replacement part, I was able to find three snap fit joints and take off the first part. Then, I could just screw off the upper burr stone. However, now I’m faced with three screws (I think) with screw heads I haven’t seen before and can’t quickly find online, either.

They have five slots which become shallower towards the center. This rules out flat screw drivers already, so I’m not sure how to unscrew this. Any ideas?

Update T+30mins: The outer diameter of the head is slightly over 8mm.

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Well, now we know that Braun is not our friend. When replacing choose another brand, I guess.

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they keep coming up with ideas to prevent one from fixing, don't they?

I have not seen a screw like that either.

It appears to be called an E5 security screw and this company seems to be the only one with a bit that MIGHT work.

The bit is actually meant for a different type of screw head.

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They do 😭 Thanks for the hint, through that I found this other topic Security Screw Driver 4PS SCUF where someone links to a file which calls it a system 5 machine screw. However, both look like the bit is slightly too small; mine is 8.x mm, while the bit is for 1/4" or 6.x mm.

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on 2nd look

It does look like system 5. There are 2 sizes of system 5 extractors. SF2B & SF3B.

https://uk.misumi-ec.com/vona2/detail/22...

The shank is 1/4". The screws they fit are 2/2.3mm and 2.5/2.6mm. That may mean they don't use the system 5 format in larger screws.

There isn't much difference, but I would guess it is the larger one.

It would be nice if they showed the screw they mate to.

good luck.

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