Check out this video on how to replace the bearings, chain, & agitator on your Brinly Aerator/Spreader. This video works for models AS2-40BH-G, AS2-40BH-S, and AS2-40BH-P.
Replacing the Bearings, Chain and Agitators on the Brinly Aerator/Spreader Combo (youtube.com)