Quoted from EaglePin:Does anyone have a tip on the best way to loosen the white plastic adjustment jam nut under the disc? I'm putting in the Stern fix for an uneven disc and one of the steps is to loosen that plastic nut but it's super tight. I don't think I can get it by hand but I also don't want to break it with a wrench. Any ideas?
Edit: Never mind. Wrench worked!!!
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For those who struggled loosen the white plastic adjustment nut, I’ve used anti-slip working gloves and it was very easy!