Belt slipping...with a twist (not literally)

Hi Folks,
At the end of my last roast, I noticed a slipping belt sound. I’ve fixed this issue before, so no big deal. But when I took off the back cover, I saw fine metal shavings at the bottom of the chaff collector. They appear to have come from the rearmost surface of the pulley. As can be seen, there aren’t any clearance issues, and I don’t see any corresponding scuffing on any part in that area. Any ideas on what’s going on? Secondly, I followed the instructions for tightening the belt. Since my Bullet doesn’t have a motor spring, I loosened the motor bolts, pulled the bracket over, and retightened, but the motor slid back to where it seemed like it started. Against my better judgement, I followed the directions that said to stop when it feels like the screws can’t be tightened further. I would have had to get a hex wrench with more leverage to do more than that anyway. Is this normal? I think I vaguely remember this happening last time too, but it has been many years since then. It doesn’t make the belt slippage noise turning the drum by hand now, but it didn’t do that before the adjustment either.
Thanks for any insight.
Eric




Hi @chicken.vindalo,

Could you try gently pulling the Pulley and see if it’s loose? There’s also a possibility that the green beans get lodged in between the Drum and the Front Plate, causing the Drum to push the Pulley back to the Squirrel Cage. You can try loading 1kg of green beans to the Bullet when it’s cold and check if the issue comes back.

Best regards,
Kevin

Hi Kevin,
I checked the pulley and it’s not loose. I haven’t had a chance to test it with 1 kg of beans yet, but I’ll get to that soon.
Thanks for the response.