HomeRoast Digest


Topic: Help replacing Mazzer SJ burrs (3 msgs / 83 lines)
1) From: Paul Jolly
The used Super Jolly arrived today.  I didn't have my PF here to make espresso, but ground up some 'old' beans just to check the evenness....and it's awesome compared to my old Maestro.
   
  The SJ came with replacement burrs.  Can anyone direct me to instructions on how to remove the old & install the new?  I've Googled it, checked CoffeeGeek & HB (the latter only briefly), and sure could use a steer in the right direction.
   
  Thanks,
  Paul
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2) From: Jerry Procopio
Paul,
I have two Majors; I am assuming the procedure is the same for the SJ or 
Mini and the only difference is size of the machine and of the burrs. 
If I am wrong, I am sure someone will correct me.  The only tool you 
should need is a straight slot screwdriver.
1.  Unplug the machine, lest something really stupid happen.
2.  Remove the hopper.
3.  Remove the big chrome adjustment ring.  It should turn clockwise to 
remove it.  Pressing down on the center sleeve that sticks up thru the 
hole might make it easier to turn.
4.  Lift that center sleeve from the grinder.  It is the upper burr 
carrier.  The burr is attached by 3 screws.  Just remove the screws, 
remove the upper burr, clean the carrier behind the burr (it collects 
coffee grinds in the little space), then replace the burr with the new one.
5.  Remove the 3 screws from the bottom burr.  Lift it out, clean 
everything, then replace with the new burr and tighten screws.
NOTE:  Make sure that both burrs are seated properly and that there is 
no coffee grounds or other debris keeping either burr from seating flush.
6.  Make sure the 4 springs are in place in the grinder housing, 
especially if you have taken an air hose to it as I do.  Those boogers 
are a bitch to find in a dirty garage when they take a compressed air 
ride across the room.
7.  I usually apply a minute amount of lithium grease to the brass 
threads of the adjustment ring before replacing it.  Remember, it turns 
counter clockwise when putting it back on.  Again, pressing down on the 
upper burr carrier makes it easier to turn the ring.
I tighten it all the way down, the back off a bit, then plug the grinder 
in, turn it on and adjust the setting.  I have true 0 marked on the 
adjustment ring with a magic marker.  This is where the burrs just make 
contact when running.  This point sometimes changes when installing new 
burrs, so marking "0" with your old burrs installed may just be a waste 
of time.  Trial and error will tell you how to adjust the burrs for 
espresso, drip, FP etc.
Bonne Chance!
JavaJerry
RK Drum roasting in Chesapeake, VA
Paul Jolly wrote:
<Snip>

3) From: raymanowen
Just as a followup to Jerry's excellent outline- note that the screws (3 in
the Major) aren't the only thing securing each burr. Baristas consider it a
service call to dig the coffee out from under the burrs. That's nuts.
You will find the coffee goo to be an excellent adhesive after you have
already removed the screws.
Clean the metal surfaces >Thoroughly< when you replace the burrs.
Cheers -RayO, aka Opa!
-- 
"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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