20 Most Recent KitchenAid A-9 Electric Burr Grinder Questions & Answers

sounds like the shear pin is broken

KitchenAid A-9... | Answered on Aug 01, 2014

there are a number of 'newer' drive configurations for modern fasteners specifically designed to limit consumers from doing their own servicing. Take the unit to your local tool dealer and get the proper tool. If it actually is a rivet, it will need to be drilled out and then replaced with a new one.

KitchenAid A-9... | Answered on Jul 05, 2014

I don't see a question in the paragraph but common problems for the A9 are 1) Shear pin 2) Motor brushes 3) slow motor operation
If shear pin then the grinders won't turn or may intermittently rotate if pin is half broken
If motor brushes worn to nubs then a fast clicking noise and sporadic on off operation followed by no operation
If motor is slow then the commutator may need cleaning requiring removing the rotor

KitchenAid A-9... | Answered on Jul 03, 2014

If you mean a chrome with serrated edges then that is a screw type ring that screws on the toggle switch on the outside to hold the switch tight in place against the body of the grinder. Place the ring over the toggle and hold the switch in place and screw the little ring on until tight.

KitchenAid A-9... | Answered on Apr 07, 2014

Patricia, I am not sure which model you have old or new. I have the old one built in the 30's. I had to replace the shear pin and the carbon brushes for the motor. I took the bottom off which has a ball bearing resting loosely in a cavity in the bottom plate. Don't lose it. Now the brushes I found at an ace hardware. Take the old ones to compare. I think there was a bracket holding the brushes and rotor in. Once the rotor was out you could get the brushes out. Putting the brushes in required figuring out how to keep the brushes retracted. I used a piece of paper and used it hold them back while sliding in the rotor. Once in pull the paper out.
Now the shear pin needs to be in to prevent damage to the grinder in case what you are grinding has something too hard to grind like a small rock, I think if you push up on the rotor when the bottom plate is off or pulling up on the shaft it might give enough clearance to put the shear pin in. It sits very close to the bottom of the shaft so it can be fun trying to line it up. I used needle nose pliers to hold the pin just right while pulling up on the shaft. I bought the shear pin off of ebay

KitchenAid A-9... | Answered on Apr 07, 2014

sounds like a broken shear pin..

KitchenAid A-9... | Answered on Mar 29, 2014

I recently found one and it wouldn't turn so I took off the top burr and it would turn on so I would start with a thorough cleaning of the burrs then check the setting of the burrs, if they are too close the they wont allow the motor to run.
Next if the motor runs but the burrs don't turn it would be a sheared shear pin which is designed to shear in case a pebble got in the coffee before damage could occur
Third worn motor brushes. My motor was intermittent and found the brushes down to nothing. Now I am looking for new ones

KitchenAid A-9... | Answered on Jun 28, 2013

Same thing happened to me. It turned out the cause was a build up of hardened coffee grounds. We took it apart (a bit tricky!) and cleaned it. Now works like new.

KitchenAid A-9... | Answered on Nov 20, 2012

Same thing here. We ended up taking it apart. Took a bit of time and a few tools, but basically the oils from coffee 'gum up' the parts. I couldn't get it to turn to FINE, as dial was stuck. I had two handy guys that did it for me. A pair of pliers and a screwdriver were involved. There was some really hardened chunks of coffee that had caused it. Works like new now!

KitchenAid A-9... | Answered on Nov 20, 2012

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