HomeRoast Digest


Topic: Re iRost1 (3 msgs / 64 lines)
1) From: john kahla
Have an iRoast 1 which has started screaming at start up for about one
second. Would think it is the fan rubbing against something. Has anyone
opened an iRoast 1 up and know of any solutions?
Thanks
John

2) From: Aaron
John I have one that does that as well.   A few things.  something 
dinged one of the blades of the fan and it is now off balance.   
Bearings / Bushings are going bad / need oiling....  or something is 
rubbing BUT you should be able to see that immediately in the way of rub 
marks, dust, wear marks etc etc.  The real loud one does not make real 
good coffee anymore,  it tends to roast very unevenly and I believe it 
is due to less airflow through it.... Ill probably pull the thing apart 
to see what I can find in there and see if any other ideas come to mind 
on yours......  if it is still in warranty have them ship you a new one, 
if it is out, might want tothink about another base unit..... the base 
alone is only $108 or so direct from hearthware for a brand spanking new 
one.
aaron

3) From: raymanowen
"...only $108..."
Good grief- if I only had $108 floating around - -it would be headed for
Oakland. Two times over, easy!
If your iRoast is howling on start-up, the bearings are dry and worn on the
motor shaft.
   1. Take it apart and pull the motor out
   2. Remove the impeller from the motor shaft
   3. Take the motor apart and remove the armature (the rotating
   part)-don't lose the spacers
   4. The bearings are phosphor-bronze cylindrical bushings, probably
   have an oil felt each. The felts dried out and the bearings wore because
   they were run dry.
   5. Clamp a 3/8" dia pin punch in your vise.
   6. Support the cylindrical end of one of the bearings on it.
   7. With a 1/16" dia pin punch, swage the bushing at the other end, to
   pincushion the bearing bushing and take out some of the free clearance. (A
   sharp centerpunch would work, but you could easily shatter the bushing if
   you tap it too hard in one spot.)
Re lube the felts with something heavier than the likely original sewing
machine oil.  Use any oil you have- the original didn't work too well.
Reassemble the motor/blower/roaster.
Roast on.
Cheers -RayO, aka Opa!
On 9/18/06, Aaron  wrote:
<Snip>
-- 
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Mighty
Wichita (ex- NYC Paramount) WurliTzer- 1976


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