How do you inspect a chain block?

How do you inspect a chain block?

Pre-use inspection

1. Visually inspect all load chains for gross damage that may be a hazard.
2. Hoist is properly secured.
3. The load does not exceed the load limit on the warning label.
4. Check that motions are smooth and regular with no hesitations, vibration, binding, unusual noise, or other irregularity.

How often do chain hoists need to be inspected?

You should be aware that OSHA and ASME require a documented Periodic inspection of your lifting and rigging equipment every 12 months (at a minimum) and monthly to quarterly inspections in more severe service conditions, based on the following criteria: Frequency of use. Severity of service conditions.

How do you check an electric chain hoist?

Inspect the chain for gouges, nicks, arc burns, twisted, bent, worn or damaged links. Inspect the loose end-link, loose end screw and dead end block and clevis pin on the double reeved units. Inspect sheave wheel for freedom of movement. Inspect that all connections are made and screw terminals are tight.

What percentage of wear is allowed on the beak of a hook?

To be safe to use, crane hook block must have less than 10% wear at bight, and the bill or beak can’t be stretched 5% or more.

Who can use chain blocks?

9. Chain blocks are designed for operation by an able bodied adult. Anyone with either temporary or permanent disability must seek expert advice before using them. 1.

How do you secure a chain block?

ALWAYS: Store and handle chain blocks correctly. Inspect chain blocks and accessories before use and before placing into storage. For top hook suspension, use hooks that are fitted with safety catches, or mouse the hook, ensuring the support fits freely into the seat of the hook.

How often does lifting equipment need to be tested?

6 months
Unless there is an ‘examination scheme’ specifying other intervals, thorough examinations should be conducted every: 6 months, for lifting equipment and any associated accessories used to lift people. 6 months, for all lifting accessories. 12 months, for all other lifting equipment.

What is Reeving on a crane?

Reeving (rope): The reeving of the hoist is the path of the rope between the hoist and the load block. Double reeving is two parts of wire rope leading off of the drum, one from each end of the drum, creating a hook movement referred to as True Vertical Lift.

How much increase in throat opening is allowed in a hook?

Check the throat opening. It should not be more than 5% or 1/4″ from the manufacturer’s original dimension. Check your manufacturer’s recommendations. Also, some hooks have manufactured marks or bumps between the throat opening and the saddle of the hook.

How to take care of a chain pulley block?

Check that chain is properly seated in sheaves and that chain is not twisted, kinked, or damaged. Don’t wrap chain around load or use chain as a sling. Don’t leave load suspended when chain block is unattended unless specific precautions have been instituted and are in place. Inspect break mechanism, load chain and hook as under.

What kind of lifting device is a pulley block?

In erection and maintenance, chain pulley blocks are the most commonly used lifting devices. Information about specifications, operation and inspection of chain pulley blocks is given in this article.

What are the standards for hand operated pulleys?

This standard lays down the general requirements and testing of the hand-operated chain pulley blocks, worm or spur gear type. They are tested at 50% overload as specified in the standard. They are generally provided with alloy steel load chain as per IS 6216: 1982.

What kind of chain pulley blocks are made in India?

In India, chain pulley blocks are made as per IS 3832: 2005 (Hand-Operated Chain Pulley Blocks – Specification). This standard lays down the general requirements and testing of the hand-operated chain pulley blocks, worm or spur gear type. They are tested at 50% overload as specified in the standard.