EMPLOYEE WAS INSTALLING A TRAM MOTOR IN A SCOOP. COMEALONGS WERE BEING USED TO LIFT AND POSITION THE MOTOR. THE MOTOR SLIPPED OFF OF THE FRAME RAIL ON THE SCOOP AND FELL INTO THE CRADLE. THE EMPLOYEE'S WRIST WAS POSITIONED IN AN AREA WHERE THE MOTOR STRUCK IT CAUSING IT TO BE PINCHED BETWEEN THE FRAME AND MOTOR COUPLER. EMPLOYEE WAS TAKEN TO HOSPITAL AND RECIEVED 6 SUTURES .