On Feb 19, 2008, at 8:02 PM, miKe mcKoffee wrote:
I agree. They're easily available, as are a bunch of other RR45 parts.
The RR45 is what I have. I just replaced the burrs on it.
You don't need to worry about the hopper, at least for now. I
actually removed the hopper from mine; more on that further down.
Press down the regulator button to the left of the regulator ring -
that's the thing that you turn to adjust the grind. Then turn the
ring counterclockwise until it comes out. Careful when you let go of
the button - mine doesn't have a retainer and will cheerfully shoot
up in the air if you let it go quickly.
The burrs are held in place by three screws each. Remove the burrs.
There will be crud - oh yes there will be crud. You'll probably have
to pry the burrs out of the crud.
Scrape with a nylon tool, such as a spudger, if you have one. Get a
stiff nylon brush to help out. Keep at it. Can you see brass? Good.
Keep going till the crud is gone.
The lower burr sits on a carrier that has three arms which sweep the
grinds out of the of the grinding chamber. These will also have crud
built up on them. Scrape their tops too.
There is a big nut in the middle of the lower burr carrier. Don't
mess with it. I tried to remove the lower burr carrier to clean under
it and I could not get it off - you have to be careful not to
misalign the carrier. I hope I didn't.
The threads on the adjuster will need lots of brushing, as will the
threads they mate with. You might practically have to "chase" the
Dismantle the doser star. It probably won't be as sludgy as the
grinder section, but you should clean it as much as you can. The
center of the doser unscrews and lifts out, along with the upper star
and a metal plate that separates the upper and lower stars. Then
carefully remove the C-clip at the top of the spindle to remove the
lower section. You shouldn't have to dismantle more than that to do a
really thorough job.
Note that newer RR45s have fancy automatic shut-offs with magnetic
sensors and all that stuff. You don't need any of that, but most of
the other parts should be interchangeable.
Don't bother getting a built-in tamper.
I bought the grinds tray and portafilter fork for my grinder, but my
home espresso portafilter doesn't fit with it installed. Oh well,
I'll keep 'em for when I get a REAL espresso machine.
Anyway, if you want to remove the fork, or if you want to install one
to replace a broken off one, you have to open the bottom. PULL the
feet off - they're just friction fit - and undo the screws in the
bottom. Then you should be able to see the screw that secures the
fork. Needless to say, do this with the unit unplugged, m'kay?
Alright, now to the hopper....
If you're gonna be going through 2lbs of beans a day, then by all
means get a new hopper.
Otherwise, it's one more thing to clean.
I leave the hopper off. I have a tamper that has a back end that fits
inside the throat of the grinder, but rests on protrusions from the
upper burr assembly which keep it from actually touching any moving
parts. I know that if I put enough beans in to cover the visible
metal parts inside the throat, that's just enough for a double shot
of espresso. Then I put the tamper on top and grind. Finish with a
pastry brush to get the last bits in, and sweep out the doser.
The doser is useless for home espresso. Again, another thing to keep
clean but it isn't too bad to sweep out with a brush each use.
FWIW, the funnel from the aeropress fits nicely in the top of the
Others on the list are fond of canning funnels.
Oh, and watch your fingers.
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