While moving a conveyor frame to another location rigging came off. when reattaching the rigging right thumb became pinched between rigging and conveyor frame causing a thumb laceration injury.
Using impact air wrench to remove bolt to replace gravel screen. Placed hand on nut head and wrench spun nut head, cutting finger.
Picked up five (5) gallon bucket out of company truck - pulled back muscle.
Working/walking near sand pump/pipe. Hit leg on lifting eye. Required 4 stitches.
Employee closed door to dredge control room on finger