Why hands should not control the last 300 mm of a lift.
As a load approaches its landing point, the clearance closes. Fingers placed at an edge or beneath a component can become trapped before the worker can react.
A prompt to examine exposure
PSC’s Last 300 mm Rule™ is an awareness principle for the final approach and landing stage. It is not a numerical safe distance or a regulatory clearance requirement. Hazardous gaps can exist throughout the lift.
Find the hand before the lift
Identify where someone would normally push, steady, retrieve or align the load by hand. Examine the gap that will close, the likely travel and rotation, and nearby fixed structures.
Plan the landing point
Prepare suitable supports and clear access before the lift. Agree on communication, the operator’s stance and the point at which guidance must stop. Follow the site lift plan and exclusion controls.
Choose the interface
A push/pull head must make secure, controlled contact. If it can slip, snag or require excessive force, reconsider the tool or handling method. A different geometry or remote handling arrangement may be needed.
Keep the whole body clear
Moving hands away from a pinch point does not remove swing, crush or struck-by risks to the body. Tool reach is only one consideration in planning a safe position.
After landing
Approach only when the load is stable and secured under the approved procedure. Do not use the guidance tool as a support, pry bar or lifting device.
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