Early model Haybuster 106 rock picker. Pulling the picker with an old Belarus 825 tractor, 85hp. Picker rake, kicker, and dump is hydraulically controlled. The large pickup wheel runs on the ground. This model is the low dump version. Haybuster later came out with a high dump version. Overall this picker does a good job of separating the soil and collecting the rock. Like most rock pickers the dryer the soil when picking the better the results.
Watch this collection of Amazing Big Trucks doing cool stuff. This