Potential Hazards:
Failure of shackles or hooks while loads are being lifted or moved may
cause serious injuries.
Requirements and Example Solutions:
- The safe working
load of shackles and hooks must not be exceeded. [1915.113(a)(1)]
- Hooks without applicable
manufacturer's recommendations available, must be tested to twice the
intended safe working load. Employers must maintain documentation. [1915.113(b)(1)]
- Loads must be applied to the throat of the hook. [1915.113(b)(2)]
See Figure 2.
- Hooks must be inspected periodically. [1915.113(b)(3)]
- Bent or sprung hooks must not be used. [1915.113(b)(3)]
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Figure 2: Shackles used to attach wire-rope slings to chain slings and to secure smaller
horizontal stabilizing sling.

Figure 3: Load properly applied to throat of hook, but hook has defective safety gate. |