sgx wrote:Hi genovese...
I actually removed the screw your talking about white a while back to enable me to get a finer grind. The company I bought it off said this was OK, so long as I didnt adjust the grind setting whilst it's running.
They're half right. The screw is
was there to prevent the hopper unscrewing if you depress the adjuster lock button while it's running WITHOUT holding the hopper to prevent that. If there is coffee between the burrs, adjusting a non-running grinder to a finer setting may mash coffee into the burrs, which can prevent the motor from starting, and may require disassembly to clean. Since you can't see whether the burrs are clear of coffee, it's better to adjust while running the grinder, with one hand holding the hopper and the other on the release.
sgx wrote:I've just looked again and there appears to be quite a gap between the 2 burrs. Is there anything that could be affecting the bottom burr to be too high??
Sorry; I don't follow you. If there is "quite a gap," then either the lower burr is too low, or the upper is too high, unless one of us is looking at it upside down. Ignoring that for now, it sounds like the threaded collar is not screwing all the way down into the bore.
IF it is stopping gradually due to friction/tightness, then follow Jim's advice and clean the threads, and while you have them exposed, inspect them for cross-threading or other damage.
OTHERWISE, if you are feeling a "hard" stop as you screw the carrier down, you have an obstruction, like a stray object, maybe a bean or a bit of metal, between the burrs. Or you may have a loose screw with a projecting head that's in the way. Or, if you removed burr(s), one may be cocked at an angle if it's not seated all the way. Even a tiny bit of debris behind the burr could cause that.