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Topic: TROSSER help! Won't grind fine enough for espresso (13 msgs / 335 lines)
1) From: b cook
Hey all.  I bought a Trosser on Ebay this week for $17.90 shipped.  I got i=
t
and it seems to be in pretty good condition.
This morning was my first run with it. I turned the grind adjustment lever
on the bottom clockwise until it was as tight as I could possibly get it.  =
I
then ground my homeroast (Brazil COE 5th place) for the dose.  I tamped it
with 30lbs of pressure.  I ran the shot and I could tell it wasn't going to
be good.  Espresso much too early and over 2oz in about 15 seconds.  Not a
good sign.  I did it all again except this time with 40lbs of tamp.  Same
result.  Then I did it one more time with 55lbs of tamp and same result.
It's just not grinding fine enough.  All 3 pucks revealed one wormhole on
top.
Is there anything else I can do to make this grind finer?  The grind seemed
nice and consistent but if this is as fine as it will go I'll have to go
back to my Capresso Infinity, which is definitely not ideal but will give m=
e
a decent shot of espresso.
Anyone?!
brad

2) From: rnkyle
This is a multi-part message in MIME format.
can you adjust it so the burrs just touch the back off a tick.
This should chock your machine.
RK

3) From: b cook
I guess not since I've got it as tight as I can get it and it's still not
fine enough.  It seems like I should be able to get them that close though.
Not sure why I can't.
brad
On 5/27/06, rnkyle  wrote:
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4) From: Brett Mason
you might back it off a bit, then turn the handle, see if it will
close more at a different angle.  ..
On 5/27/06, b cook  wrote:
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h.
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-- 
Regards,
Brett Mason
 HomeRoast
   Zassman

5) From: Michael Wascher
I tore mine apart for a cleaning & adjustment.
To adjust: The rotating burr might not be properly cent erred in the
stationary burr. Take it apart. Mine had 4 screws in the top, then it lifte=
d
off. A couple of wood screws hold the bottom burr carrier. You can loosen
the wood screws and move the carrier's position. Make sure it's clean, a bi=
t
of grit in the burrs would make it off center. Tighten the grind adjustment=
,
wiggle the burr carrier, get it centered. Then screw it down tight, loosen
the adjustment a bit, screw it down ...
You might also check the thrust washer. Look at the assembly, in the area o=
f
the adjustment screw. When you adjust the grind you turn a screw, pushing
the shaft up or letting it drop down. The shaft has the rotating burr &
handle fastened to it. At the bottom of this assembly is a thrust washer.
Its a soft steel washer that is at the bottom of the shaft. This is a
sacrificial part, designed to wear away saving the shaft & bracket from wea=
r
. It's possible that somebody added a washer that is too thick as a
replacement? That'd limit the minimum adjustment.
For a replacement, make sure you get a soft steel washer, it has to be
softer than the shaft & bracket so that it will take the wear. No plating o=
n
this washer! A trace of iron is good for the diet, but some of the other
metals wouldn't be a good addition. Just get a plain steel washer, not
stainless. If it has been hardened, heat it with a torch then let it slowly
cool.
--MikeW
On 5/27/06, b cook  wrote:
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-- 
"Life is just one damned thing after another."
  - Elbert Hubbard

6) From: b cook
Thanks for all the tips, Michael.
I don't see a washer down there.  I see the little handle to turn the screw
and between that and the carrier arm is a spring.
The rotating burr seems centered when I eyeball it from below as I turn the
handle.  I thought I had it as tight as possible yesterday but I got out a
dish towel so the edges of the adjustment screw handle wouldn't dig into my
fingers and I got it even a little tighter...to the point where the burrs
sounded like they were rubbing when I turned it.  I really had to torque it
to get it that close though.  Then I backed off a little when I got the
burrs to that point.  I'll be trying it out again this morning a little
later after music practice at church.  I'll report back.
brad
On 5/27/06, Michael Wascher  wrote:
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7) From: Michael Wascher
To see the washer you have to disasemble the mechanism. It's at the bottom
of the shaft.
On 5/28/06, b cook  wrote:
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-- 
"Life is just one damned thing after another."
  - Elbert Hubbard

8) From: b cook
I got in a big hurry this morning and after I filled my basket I forgot to
tamp and shoved the portafilter and basket up into my machine just as I
realized it!  The dose was ruined and I didn't have time to work up another
(especially with the Trosser) so I'll have to test it tomorrow.
brad
On 5/28/06, Michael Wascher  wrote:
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9) From: Angelo
It could be that there is gummed up coffee oils on that shaft. It 
shouldn't be that hard to turn, and the fact that it will turn with a 
inordinate amount of force confirms my suspicion.
If the burrs were really touching, you wouldn't be able to turn it. I 
suggest that you try to clean that shaft anyway that you can..I'm 
thinking a toothbrush and some solvent of your choice...
I don't think you need to disassemble the whole unit, but it wouldn't hurt...
<Snip>

10) From: Michael Wascher
And it should be very easy to turn. The burrs are much less aggressive than
those on the Zassenhaus. Much easier to turn but it takes many more turns.
Disassembly is easy on this unit.
And reassembly isn't that hard either.
On 5/28/06, Angelo  wrote:
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-- 
"Life is just one damned thing after another."
  - Elbert Hubbard

11) From: b cook
Just to be clear, it's not the grinding handle/shaft that I'm having troubl=
e
turning.  It's the grinding level adjustment handle.
So when it's at it's maximum level of fineness I shouldn't be able to turn
the center burr at all with the grinding handle?
brad
On 5/28/06, Michael Wascher  wrote:
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12) From: Michael Wascher
If I really crank down the adjustment on mine, it won't turn. But you reall=
y
have to bear down on it ... turning it tighter than seems reasonable. As yo=
u
tighten the adjustment down it'll be pulling against the stationary portion
or the mechanism. The two wood screws will be taking all of the force, and
the wood top that they are screwed into isn't all that thick.
On 5/28/06, b cook  wrote:
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n
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-- 
"Life is just one damned thing after another."
  - Elbert Hubbard

13) From: raymanowen
Before I engaged my alleged brain, I measured 14g of beans into my large
machine for the making of small pieces out of bigger beans. You already kno=
w
the rest of the story- no amount of tapping and compaction was enough.
I meant to grind it at an 18 setting. It took about 3 secods to grind it at
42, and 3 more seconds to realize my mistake...
It was not a good demi of Dummkopf espresso.
Cheers -RayO, aka Opa!
"A mind is a terrible thing to..."  Miahn hashi moyou??


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