Hooks are one of the most stressed components in any lift. They carry the direct load connection and are subject to repeated stress, shock loading, and side pulls. A compromised hook won’t always show obvious signs of failure — but once it fails, there’s no warning. That’s why close inspection is non-negotiable before every shift.
Key Points:
- Check for throat opening deformation. If the hook opening is stretched even slightly beyond the manufacturer’s spec, it’s out of service.
- Inspect for cracks and nicks. Pay close attention to the saddle and eye — cracks in these areas are especially dangerous.
- Check the latch. The latch spring must be functional and snap closed. Never bypass a damaged latch with tape or wire.
- No twisted or bent hooks. Any bending or twisting means it’s been overloaded or side-loaded — tag it out immediately.
- Verify markings. All hooks must be marked with their working load limit (WLL) and manufacturer ID.
✅ If a hook isn’t perfect, it’s a liability. Replace it.
Ask the Crew:
- Did we inspect every hook before the first lift today?
- Are any hooks showing signs of wear, bending, or latch failure?
- Do we know the criteria for taking a hook out of service?