Caught in, under or between a moving and a stationary object
Employee was assisting in re-installing the cutter head on the dredge. While threading the cutter head onto the shaft, the chain that was around the cutter head slipped/tightened allowing a chain link to roll and pinch EE's left pinky finger in the chain links. This resulted in a degloving/open tuft facture to the left pinky finger requiring medical treatment.