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Mazzer Luigi binding
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Discussions > Espresso > Grinders -... > Mazzer Luigi...  
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Nickfrogger
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Nickfrogger
Joined: 26 Nov 2010
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Location: Spokane
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Espresso: Rancilio Silvia V3 w/PID,...
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Roaster: Behmor 1600
Posted Thu Jan 23, 2014, 10:24am
Subject: Mazzer Luigi binding
 

The Mazzer here at work keeps binding... I can bring the grind fine as normal with the burrs running, but she won't start back up again unless I coarsen the grind to equal ~20 second double. I cleaned it out and took a look at the burrs which seem... average, I suppose. Anything else I should check out?


Thanks in advance for any help!

~Nick

 
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DavecUK
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Posted Thu Jan 23, 2014, 11:21am
Subject: Re: Mazzer Luigi binding
 

If it's old it might be terminal, or it could be as simple as a motor capacitor gone, which doesn't allow for high starting torque.
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Nickfrogger
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Nickfrogger
Joined: 26 Nov 2010
Posts: 201
Location: Spokane
Expertise: I love coffee

Espresso: Rancilio Silvia V3 w/PID,...
Grinder: Lelit PL53, Baratza Maestro
Vac Pot: Yama TCA-5 Siphon
Drip: V60 (A red one!)
Roaster: Behmor 1600
Posted Thu Jan 23, 2014, 3:33pm
Subject: Re: Mazzer Luigi binding
 

Thanks, I figured... It's been switched to decaf duty, updosing is giving us passable shots until she goes.

Cheers

 
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DavecUK
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Posted Thu Jan 23, 2014, 6:49pm
Subject: Re: Mazzer Luigi binding
 

If it's just a capacitor, it can be accessed from the bottom and repaired for a few dollars. The spares are readily available.
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Nickfrogger
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Nickfrogger
Joined: 26 Nov 2010
Posts: 201
Location: Spokane
Expertise: I love coffee

Espresso: Rancilio Silvia V3 w/PID,...
Grinder: Lelit PL53, Baratza Maestro
Vac Pot: Yama TCA-5 Siphon
Drip: V60 (A red one!)
Roaster: Behmor 1600
Posted Thu Jan 23, 2014, 9:46pm
Subject: Re: Mazzer Luigi binding
 

I hope it's just the capacitor. It seems like in the rare occasion that a leaky capacitor still starts the motor it gets worse quickly so I suppose we'll know pretty soon. EP has the start capacitor at a hefty $68 D: I'll test it next week.

Suppose it could be grit in the switch?

Thanks for the posts Dave

 
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DavecUK
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Posted Fri Jan 24, 2014, 6:03am
Subject: Re: Mazzer Luigi binding
 

Nickfrogger Said:

I hope it's just the capacitor. It seems like in the rare occasion that a leaky capacitor still starts the motor it gets worse quickly so I suppose we'll know pretty soon. EP has the start capacitor at a hefty $68 D: I'll test it next week.

Suppose it could be grit in the switch?

Thanks for the posts Dave

Posted January 23, 2014 link

Bloody hell 68 dollars....if you have 2 grinders the same, swap the capacitors over. The motor will often still start with a bad capacitor and provide the proper torque when it's running, but will have very low starting torque, which sounds like exactly your problem. theres nothing really in the motors to weaken them and i haven't insulted your intelligence by asking if the burr attached to the motor spins freely, because it's the first thing you would have checked.
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Nickfrogger
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Nickfrogger
Joined: 26 Nov 2010
Posts: 201
Location: Spokane
Expertise: I love coffee

Espresso: Rancilio Silvia V3 w/PID,...
Grinder: Lelit PL53, Baratza Maestro
Vac Pot: Yama TCA-5 Siphon
Drip: V60 (A red one!)
Roaster: Behmor 1600
Posted Fri Jan 24, 2014, 11:04pm
Subject: Re: Mazzer Luigi binding
 

Yep, the burr spins freely :) There wasn't a good time to switch the two today, but I didn't pull any decaf shots either. I'll let ya know what we end up doing, thanks again for the help!

 
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kennyrsmith
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Joined: 27 Jan 2014
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Location: Kentucky, USA
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Espresso: Dalla Corte Mini
Grinder: Mahlkonig Pro M/Baratza...
Posted Mon Jan 27, 2014, 8:06pm
Subject: Re: Mazzer Luigi binding
 

My vote is on the capacitor. We use compak for pretty much everything at work and when they first introduced the K10 Fresh we had some awful binding issues (especially on lighter/high density coffees). Underpowered capacitors were the problem. The fact that you can grind normally at coarser grinds is what leads me that direction, good luck!
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Nickfrogger
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Nickfrogger
Joined: 26 Nov 2010
Posts: 201
Location: Spokane
Expertise: I love coffee

Espresso: Rancilio Silvia V3 w/PID,...
Grinder: Lelit PL53, Baratza Maestro
Vac Pot: Yama TCA-5 Siphon
Drip: V60 (A red one!)
Roaster: Behmor 1600
Posted Tue Jan 28, 2014, 8:16pm
Subject: Re: Mazzer Luigi binding
 

Tested the capacitor with my fluke today, ~20uf and abnormal discharge so looks like it is toast.

Any recommendations on reasonably priced replacements that won't pop in a few months?

 
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calblacksmith
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calblacksmith
Joined: 25 Nov 2007
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Posted Wed Jan 29, 2014, 2:09pm
Subject: Re: Mazzer Luigi binding
 

Any appliance supply company or air conditioning company or motor service company, just get the value off the old one and ask  for a replacement.
I just bought a motor start cap for less than $4 US.

 
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