Charles K Penfield , NY November 20, 2023 Appliance: KitchenAid 5 Quart Artisan Tilt Head Stand Mixer KSM150PSBY0 Kitchenaid Mixer Ksm150psby0: Kitchenaid artisan mixer was not mixing. How to replace Worm Gear And Bracket Assembly. Replaced the worm gear and bracket assembly. YouTube video by Mr. Mixer was very helpful. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours