I say it's an overkill because that would mean you would pretty much be forced to replace both the motor and the pinion, but obviously you're not worried about that.

If it's such a design problem it would be talked about a lot more and everyone would be forced to glue their pinion gear. My forte is several years old and I have never needed to do that. Even if the pinion/motor needs replacing on mine, I have gotten enough use out of it at this point to see it as regular wear and tear. So at least it's not such a huge design problem to me.

JR_Germantown wrote:Same issue here. Baratza support recommended replacing the motor and drive gear --
1094 Forte D-Shaft Motor Drive Pulley w/ Set Screw
1036 120 V Motor D-Shaft

I also upgraded to the d-shaft motor and pulley from the older helical style, but baristainzmking's pulley looks different than the d-shaft pulley I'm using. Is that from wear/slippage?

Doolittlej wrote:Put a 2 mm wrench in and make sure the screw is truly missing. It hides deep inside it and might just need tightened.

I did put a wrench in and the hole where the screw goes in is completely clear and empty.

Cedo wrote:sounds like you have a bad grub screw, didn't tighten the screw properly or didn't use the right thread locker. Coffee grinders are relatively low power and only run for seconds or at most a few minutes at a time. It's overkill to epoxy the pinion.

To be clear, I didn't tighten anything, didn't replace anything. The only reason the grinder was opened is because it stopped working and there wa a rattling noise inside. When I opened the grinder the part was loose ans no screw insight.

My comment wasn't directed at you.

Anyway, you can probably find the set screw in your hardware store, it should be 4mm by 5mm long. Take the gear with you to confirm it fits.

I can do that for sure, it would be nice to hear back from Baratza.