Slipping Belt on Thorens TD-150

@zavato i have an older and a newer belt. The newer one is an original Thorens belt. This one doesnt slip as much when starting (it is smaller) but it did drop to the lower part of the pulley causing the speed to bump to 45.

My table is modded to remove the metal guard, and leverage a MusicHall Cruise Control 2.0 to manage the speed.

@slaw  on the contrary actually... there are certain requirements that I am trying to work around, hence why some actions are not feasible. That said, regarding my other post, I will be stiffening the floor.

Regarding this post, I have two belts, different sizes, and looking for confirmation that this is not a specific problem to my TD-150.

One of the belts is brand new, one is 3 years old. The new belt is tighter than the older belt (obviously). The newer belt slips to the lower part of the pulley.

Sanding the belt is a solid idea that I will be trying this evening if nothing else improves.

@teo_audio I have cleaned the pulley and the inner platter with alcohol and ensured that there is no oil residue as that can wreck havoc on the belt's ability to hold.

The reason why I didn't reply specifically to your post yet is because I haven't had a chance to try a few of the other steps.

Thanks for your involved post, very great insight there.

New belt fixed the issue, also tuning the pulley screw to better align the pulley. Only a small amount of scrubbing on startup now.