Rigging decisions: receive the actual load, qualified method and component limits
A carpenter has a sling that lifted another lumber bundle yesterday. Today's bundle is longer and its weight is unconfirmed. Familiar hardware cannot answer the new rigging decision; the crew needs the actual load information and qualified arrangement before it proposes a lift.
Know what must be established, rather than choose a hitch from a remembered picture. CCOHS explains that rigging depends on the load, method, components and angles, with actual manufacturer limits, suitable inspections and trained authorized personnel. This lesson returns incomplete information to that qualified process. It teaches no hitch construction, capacity factor, angle calculation or qualification through reading; an ordinary-looking load still needs its actual arrangement.
Receive the rigging basis before the equipment is committed
- Identify the actual load and uncertainties. Obtain reliable information about the specific load's weight, configuration, lifting provisions and relevant condition through appropriate people. Mark missing information clearly. A count of bundles or estimated weight from appearance cannot supply a technical basis. Keep the lift stopped while information needed for the qualified rigging decision remains unresolved.
- Receive the qualified method and limits. Have appropriately qualified personnel establish the actual equipment, components, arrangement and relevant manufacturer criteria for this lift. Confirm that the identified limits cover the received method, not only a straight pull illustrated on a tag. Do not copy yesterday's hitch, invent an angle factor or substitute a basket configuration from this lesson.
- Verify the identified components and readiness. Have required inspections and checks completed against actual instructions and acceptance criteria. Connect the hardware being used to the reviewed arrangement, retaining identification and unresolved concerns. Missing information, damage or a proposed substitution needs the proper response before use. A readable tag is useful evidence of identity; it is not complete proof of condition or suitability.
- Keep the receiving and change process connected. Give the qualified lift and ground-team leads the actual accepted arrangement and restrictions. Retain required instruction, communication, load-control and landing/release responsibilities. A changed bundle or component returns for review rather than inheriting the previous approval. Any test or trial movement belongs to the qualified process; it cannot be used by an untrained worker to discover whether improvised rigging holds.
Common mistakes
- Using yesterday's success as today's load information.
- Reading a tag without matching the actual method and condition.
- Substituting components or hitches without qualified review.
- Testing improvised rigging by lifting to see whether it holds.
Checklist
The rigging decision has
- Reliable identified load information and explicit unknowns.
- Qualified method and actual component criteria.
- Required inspections and verified identified equipment.
- Received lift-team roles and task limits.
- A review route for changed loads or substitutions.
Check your understanding
The sling's tag is readable, but the new bundle's weight and method are unconfirmed. Can yesterday's lift release it?
