Safety and Health Information Bulletin - Standup Forklift Under-ride Hazards t positioned at the same level as the guard to prevent the under-ride from occurring. When the operator traveled with the forks trailing, the forklift passed under the crossbar, which struck the operator above the waist and pinned his torso against a part of the operator's compartment. The operator died of asphyxiatio in Public bookmarkswith forklift_training