cdrake39 wrote: ... in the forum but it looks like it got buried.
The HB sever has been with some sort of issue all day yesterday, maybe from early on.
But Dan always gets it right and here we are again. =-)
cdrake39 wrote: ... still have the same issue, tight adjustment even within the first couple revolutions.
... removed the burr carrier ... ... small metal filings on the teflon tape.
Let's (re)start from the beginning:
IIRC, your grinder is not 'out of the box' new but sold with to you in a 'lightly used' condition.
You noticed the issue at hand when you first started using it, before
even taking it apart ie: unscrewing the upper carrier assembly for the first time.
Is this right?
If so, I think we can safely assume that you may
have not caused whatever is going on.
The filings are a sign that the threads, which should be matching perfectly within acceptable tolerances, may not
To illustrate the idea:
I have come across situations where I had a very short threaded hole or a nut but no matching screw (always small diameters), usually in stuff where a quick and dirty solution could be (reluctantly) accepted, even by me. =-)
So I find a part that is close (I have a huge collection) and just slowly force it.
Most (not all) times I manage to get the fastening done and that's it.
The result: metal shavings like what you describe.
Off the top of my head and with just a latte on me this morning, I would say that one of two things (maybe both) could be happening here: the threads are slightly crossed at a some point or there's an OEM issue to be dealt with.
While I cannot rule out a manufacturing issue (you should see my Cimbali Junior Max) the usual suspect is an unexperienced user crossing the threads when assembling/reassembling the grinder.
Please don't ask me how I know about that.
Usually this type of thing happens near the start of the threads ie: if they have not been crossed at the start and 20/25% of the thread has gone in properly, it's very difficult they will cross further on as both parts are already on the same axis.
Let's try this:
Please inspect very closely
(w/magnifying glass, jeweller's loupe) the upper carrier threads.
Look for anything that would indicate a non- continuous thread path, however slight.
Then run a fingernail slowly along the thread from the end to the start as you turn the part and see if your fingernail gets caught somewhere along the thread path.
If so, please take a photo and post it here.
Next, get yourself a permanent ink marker (unless you have layout ink) like those Pilot brand jumbo or Sharpies, any dark colour.
After thoroughly cleaning both parts (again) with alcohol and wiping/letting dry well, paint the threads on both parts.
The thread on the grinder will be harder, just have patience. make sure then ink gets in the thread 'valleys'.
No need to cover the whole length of the thread, I'd say that just 1" will do OK.
Done that, wait for the dye to dry.
Now comes the reassembly:Before
starting to turn the upper carrier to screw it in (in whatever direction it has to go which I expect is clockwise) slowly turn it in the opposite
direction so as to get a feel of where the threads start to match. ie: start of upper carrier thread catches with start of lower thread.
Done that, slowly start turning the upper carrier till it starts to get stiff and without forcing it too much, insist a bit more (always by hand).
Stop, take a deep breath =-) and slowly
The ink you laid on the threads should have given way to bare metal wherever the threads are touching more than they should.
Those bare metal points are where the problem is.
Please post photos of the results, both the upper carrier and grinding chamber threads.