Got a factory brand new 807 LS. No chirp at 0. Currently coffees are coming out quite bitter. I'm somewhat sure it's not the grinder (I've just changed water, beans, etc) but I now have an itch to get inside and align it. Should there be chirp at 0?

Should there be chirp at 0?

Not from the factory setting

If you want to, you can recalibrate (re-zeroing) the dial adjustment

Marmot wrote:In this german forum I posted a step by step instruction on calibrating an 807LS. You need a 3mm hex screw to loosen the fix screw on the dial. I would first open the grinder and clean everything. You can then slowly turn the dial finer until you hear the burrs chirping.

https://www.kaffee-netz.de/threads/ditt ... 01/page-13

Ditting 807 Lab Sweet user experience

maxmaut wrote:Got a factory brand new 807 LS. No chirp at 0. Currently coffees are coming out quite bitter. I'm somewhat sure it's not the grinder (I've just changed water, beans, etc) but I now have an itch to get inside and align it. Should there be chirp at 0?

Just to avoid continued confusion from terminology- you are not necessarily experiencing mis alignment, but as pointed out below, you have an opportunity to recalibrate your 0 so that the burrs get closer together at that point on the dial and chirp.

Ii is possible to still need alignment but that is a much more involved process requiring markers, shims, and probably a tool that will let you torque the screws that hold the burrs to spec.