What could happen if rigging is not done properly?
Failing to maintain proper load control is a common problem in rigging because, even if a load is perfectly rigged according to its weight, the lift could fail and cause serious injury and damage if not properly controlled.
What is improper rigging?
Improper rigging of a load or a rigging failure can expose riggers and other workers nearby to a variety of potential hazards. Riggers have been injured or killed when loads have slipped from the rigging, or when the rigging has failed.
When should a rigging hook be replaced?
Rigging Hook Inspection and Maintenance Discard hooks that have an increase in throat or slot opening more than 5% of the original opening (not to exceed 1/4 inch). Discard hooks with any visibly apparent bend or twist from the plane of the unbent hook. Replace load pins that are permanently distorted.
What are 6 defects that will condemn a lifting chain?
Chain links Using a chain incorrectly can cause damage such as cracks, breaks, stretched links or fittings, excessive wear, nicks, gouges and rigid chain links or fittings. The simplest way to prevent any damage to your chain is to ensure you follow the WLL for the chain, this should be visible on the ID tag.
What is a common cause of rigging failure?
Overload is one of the most common causes of rigging system failures. Each rigging supply company is required to note down the working load limit (WLL) and rating for rigging equipment such as chains, dog clips, and S-hooks.
What is one thing that you should not need to inspect on a hook?
Cracks, nicks, or gouges. Wear exceeding 10% (or as recommended by the manufacturer) of the original section dimension of the hook or its load pin. Visibly apparent bend or twist from the plane of the unbent hook. Any distortion in the throat opening causing an increase of 5% not to exceed ¼ in.
When should a hook be removed from service?
Any wear exceeding 10% of the original section dimension of the hook or its load pin means the hook should be removed from service. There is an easy rule of thumb you can follow when checking for nicks and gouges – any nick or gouge that you can fit your fingernail into is cause to remove the hook from service.
How do you inspect a rigging?
A visual inspection shall be performed by the user or designated person each day before the rigging hardware is used. A periodic inspection shall be performed by a designated person, at least annually. The rigging hardware shall be examined and a determination made as to whether they constitute a hazard.
What is rigging load?
Rigging is both a noun, the equipment, and verb, the action of designing and installing the equipment, in the preparation to move objects. A team of riggers design and install the lifting or rolling equipment needed to raise, roll, slide or lift objects such as with a crane, hoist or block and tackle.