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Grindmaster 495 questions.
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Discussions > Espresso > Grinders -... > Grindmaster 495...  
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benpiff
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benpiff
Joined: 5 Feb 2010
Posts: 295
Location: Portland, OR
Expertise: I live coffee

Espresso: RocketR58,GrimacMini,Elli
Grinder: LSM FK Conical, Vario
Roaster: Sonofresco 1lb, Behmor
Posted Tue Mar 26, 2013, 4:14pm
Subject: Grindmaster 495 questions.
 

Hi guys, I just bought one of these and opened it yesterday to find a screw had fallen into the hopper at some point (I could spin the motor a little back and forth, but could tell something wasn't right). I've read a little about a plate that can wear out inside these, and thought I'd ask for input on this one. Or if you see something I obviously need to replace, it would be great to hear of a solid source for parts. Also, I wanted to open it up and clean but how does one set the burrs into the factory place again?

Thanks,
Ben

Click Here (lh4.googleusercontent.com)

 
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yakster
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yakster
Joined: 25 Feb 2009
Posts: 1,013
Location: San Jose, CA
Expertise: I live coffee

Espresso: Gaggia Factory / La Peppina...
Grinder: Vario / Kyocera
Vac Pot: Yama 8 + Pyrex Lox-in Rod
Drip: Brazen / Kalita / Chemex /...
Roaster: Behmor
Posted Tue Mar 26, 2013, 5:11pm
Subject: Re: Grindmaster 495 questions.
 

I picked up a Grindmaster 890 and found that many of the Grindmasters have a shear disk that will break to save the motor from destruction when something falls in the hopper.

I can't tell if this one would work with the 495, but it works for other Grindmaster models.  You might want to check Scribd or other sites for archived Grindmaster manuals to see if you can find out more, Scribd seems to be down right now for maintenance.

Grindmaster Shear Disc - Coffee Wholesale USA

 
-Chris

LMWDP # 272
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yakster
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yakster
Joined: 25 Feb 2009
Posts: 1,013
Location: San Jose, CA
Expertise: I live coffee

Espresso: Gaggia Factory / La Peppina...
Grinder: Vario / Kyocera
Vac Pot: Yama 8 + Pyrex Lox-in Rod
Drip: Brazen / Kalita / Chemex /...
Roaster: Behmor
Posted Tue Mar 26, 2013, 5:16pm
Subject: Re: Grindmaster 495 questions.
 

This picture from the manual should give you an idea of how the burrs go together.  The grind cap presses against the shear cover to hold the outer burr in place and when you select the grind the protrusion that presses against the shear cover extends and retracts to set the grind.  The spring on the feedworm and rotary burr will act to hold the burrs apart and the selector sets the depth so you should be able to just pull the outer burr out and then press it back in and re-assemble.

I'm having a hard time pulling my 890 outer burr, however and may need to come up with a jig to get it off of the shaft.

yakster: GM.jpg
(Click for larger image)

 
-Chris

LMWDP # 272
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benpiff
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benpiff
Joined: 5 Feb 2010
Posts: 295
Location: Portland, OR
Expertise: I live coffee

Espresso: RocketR58,GrimacMini,Elli
Grinder: LSM FK Conical, Vario
Roaster: Sonofresco 1lb, Behmor
Posted Wed Mar 27, 2013, 10:26am
Subject: Re: Grindmaster 495 questions.
 

Fantastic info, just what I wanted to hear. The shear disc is in tact, soon to be doing some test grindage.

 
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benpiff
Senior Member
benpiff
Joined: 5 Feb 2010
Posts: 295
Location: Portland, OR
Expertise: I live coffee

Espresso: RocketR58,GrimacMini,Elli
Grinder: LSM FK Conical, Vario
Roaster: Sonofresco 1lb, Behmor
Posted Wed Mar 27, 2013, 11:59am
Subject: Re: Grindmaster 495 questions.
 

Dangit, I put the grinder back together and turned it on to hear burrs grinding on burrs. Ugh. Everything came apart and went together well, but I can't figure out how this adjustment is supposed to work. It doesn't seem to make anything move.

 
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