A 64-year-old Iowa cattle farmer was killed when his hooded sweatshirt became entangled in the power shaft of a roller mill, which was grinding corn. The roller mill was powered from a 15 kW (20 hp) electric motor via two V-belt transmission pulleys and a power take off shaft approximately 50 mm (2") in diameter. This shaft was connected to the mill power intake shaft by a U-joint on the side of the mill. A protective master guard over the U-joint had evidently been removed in the past, leaving this joint exposed. There were no witnesses to the event, and from the circumstances, it appeared possible that the man slipped and/or fell onto the rotating shaft. There was no obvious reason for him to be in that position near the roller mill. There was an oilcan on the floor, which could have been used at the time for oiling chains, but the chains were on the other side of the mill. The controls for the incoming and outgoing corn were on the other side of the mill as well. The were 9 sacks of feed next to the door, close to the mill, and there were several objects on the floor and around the space next to the mill where the victim would have been standing. It is possible that he stepped on or was caught by something, which made him loose his balance. The farmer died from cervical fractures. Recommendations based on our investigation are as follows: 1. Moving machinery parts such as belts, pulleys, chains, gears, and shafts, must be guarded to protect workers. 2. Good housekeeping practices should be followed to maintain work areas in safe condition.
Region-7; Accident-analysis; Accident-prevention; Accidents; Injuries; Injury-prevention; Traumatic-injuries; Work-operations; Work-analysis; Work-areas; Work-performance; Work-practices; Safety-education; Safety-equipment; Safety-measures; Safety-monitoring; Protective-measures; Farmers; Agricultural-machinery; Agricultural-workers; Agriculture; Agricultural-processes; Clothing; Personal-protection; Personal-protective-equipment; Protective-equipment; Protective-materials; Machine-guarding