Specifically, the first gear has worn down. So it needs replacing along with additional lubricant and probably a new gasket or seal.In our experience, this mixer needs work but has good bones. My husband and I originally bought all used equipment for our restaurant and are slowly replacing things with all new as our budget allows. This mixer has been reviewed by a professional/certified Hobart Representative. That said, it will need a gear replaced and additional lubricant before use. The item "Commercial Hobart Mixer A-200 20 qt" is in sale since Sunday, April 7, 2019. This item is in the category "Business & Industrial\Restaurant & Food Service\Commercial Kitchen Equipment\Food Preparation Equipment\Commercial Mixers". The seller is "mslydia22" and is located in Columbia, Missouri. This item can't be shipped, the buyer must pick up the item.