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Saturday, November 1, 2014

An Answer to Shelley's Question Concerning an A9 Part.

The threaded post that sticks up from the lower burr assembly is simply a 10-24 x 1.25" stainless screw with the edges of the head ground flat. It's function is to lightly stir the beans at the entrance to the grind chamber preventing the beans from jamming together and blocking the grind chamber. Approximately 1/4" of the screw is threaded into the lower burr support. The screw is locked into place by a jamb nut with an external tooth lock washer. Any reasonably competent handyman should be able to make this part with a grinder and some files. Another option may be the local vocational school if they have a tool and die program. I would definitely use a stainless steel screw for safety since much of the common mild steel hardware may be cadmium plated.  

1 comment:

Charlotte said...

I recently purchased on ebay a 1940 A9 kitchenaid coffee grinder in the original box, maybe used once and put away. It is near mint. I feel that after setting unused for so long that it needs some lubrication attention. Burrs look new, but when turned on briefly it sounds odd. I need to know the proccess to get to the motor for lubrication...step by step please. There no small appliance repairs around my area who deal with vintage items. Thank you.

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Midlands of South Carolina, United States
Husband, Father, Quality Engineer, Electronics Professional, and tinkerer. Facinated by old technology and well made old tools. Old iron is good.