Hi I would suspect that the burrs have never touched. There has to be some coffee grounds in the threads that is preventing the burr assembly form going in any farther. Remove the burr assembly and check the threads inside the chamber. If there is any black coffee residue it has to be removed. It sometimes has to be chipped out of the threads. We used a dental probe to remove it. Then a tooth brush. When reassembling the burr assembly turn all the way in until you see the acorn nut in the center rotate. STOP. Back the assembly back until the nut stops rotating. That is ZERO. You can install the bean hopper with the zero facing the mark. You can also move the assembly a little counter clockwise, but not clockwise, to line up the screw holes. Make sure that you have the hopper stop in place before tigntening you screw down. Then turn the bean hopper to 7 and test.
If the burrs are not flat when installed it will grind very coarse, because the beans will go to the largest opening to be ground. Make sure that the burrs set flat in the brass holders. Look at the side to make sure there is no gap. That would be the only other thing that will cause a coarse grind.If the burrs are not flat when installed it will grind very coarse, because the beans will go to the largest opening to be ground. Make sure that the burrs set flat in the brass holders. Look at the side to make sure there is no gap. That would be the only other thing that will cause a coarse grind.
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Hi
I would suspect that the burrs have never touched. There has to be some coffee grounds in the threads that is preventing the burr assembly form going in any farther. Remove the burr assembly and check the threads inside the chamber. If there is any black coffee residue it has to be removed. It sometimes has to be chipped out of the threads. We used a dental probe to remove it. Then a tooth brush. When reassembling the burr assembly turn all the way in until you see the acorn nut in the center rotate. STOP. Back the assembly back until the nut stops rotating. That is ZERO. You can install the bean hopper with the zero facing the mark. You can also move the assembly a little counter clockwise, but not clockwise, to line up the screw holes. Make sure that you have the hopper stop in place before tigntening you screw down. Then turn the bean hopper to 7 and test.
If the burrs are not flat when installed it will grind very coarse, because the beans will go to the largest opening to be ground. Make sure that the burrs set flat in the brass holders. Look at the side to make sure there is no gap. That would be the only other thing that will cause a coarse grind.