Rigging Equipment and Terminology Flashcards
Which regulations cover lifting equipment and operations?
Lifting Operations and Lifting Equipment Regulations (LOLER) 1998;
According to these regulations, how often should lifting accessories be inspected?
- At least once every 6 months if an accessory for lifting.
- At least once every 6 months if used for lifting people.
- At least once every 12 months for other lifting equipment.
- After any exceptional circumstances which are liable to jeopardise the safety of Lifting Equipment have occurred.
- More frequently if required in accordance with an examiner’s scheme or manufacturer’s instructions.
State three responsibilities a Person in Charge has when managing lifting operations?
- Type of lift and the equipment to be used;
- Environment (location, ground condition, noisy, etc.).
- Load (weight, the centre of gravity, stability, lifting points, etc.).
- Visibility (for the entirety of the lifting operation).
- Weather (wind speed and direction, etc.).
- Proximity of other hazards, etc (e.g. overhead power lines).
- Other persons in the vicinity of the lifting operation (staff, visitors, etc) and the need for exclusion zones.
What are the Employees responsibilities when conducting lifting operations?
Staff shall comply with all information, instruction and training provided and only staff who are competent shall be authorised to use lifting equipment or carry out lifting operations.
What is the process if an item of lifting tackle is found to be unserviceable?
Seek supervisor guidance.
Failures of lifting equipment are to be quarantined immediately and returned to stores at the earliest opportunity.
Reported in accordance with JAP 100E-10 Chap 9 (Disposal of Major GSE)
Return item to GSE
In short:
• Remove it!
• Label It!
• Report It!
State how lifting tackle should be stored?
Lifting Tackle should be stored;
- Clean and dry before stowing
- In cool, dry conditions away from direct sunlight
- Away from chemicals, oils, greases etc.
Explain the 7:1 safety factor of a sling/strop?
Safety factor 7:1 = The safe working load specified on slings is one-seventh the minimum break strength. This means that a sling rated as 1 M.T., SWL, will break at a minimum strength of 7 M.T. Therefore, the safety factor is 7:1.
What information can be found on a sling/strop information tag?
The information on a sling or strop contains the following information;
- Manufacture Date
- Effective Working Length
- Working Load Limit
- Serial Number
- Methods of Use and variations in working load.
- NSN (Nato Stock Number)
Under which circumstances can the lifting tackle and safety equipment be mixed?
It is very important not to mix Lifting Equipment with Safety Equipment.
What is the purpose of a shackle?
Shackles are a weight bearing, temporary means of attachment, used in aiding the jointing of coupling links, ropes, chains and other associated lifting tackle.
What are the two types of shackles that are widely used in the CIT trade?
- Bow Shackle
- Dee Shackle
Which shackle would be better suited for a single straight pull?
A Dee shackle is designed for a single straight-pull, whereas a Bow shackle is used for multiple attachments.
How are shackles classified?
Shackles are classified by;
- Working Load Limit (WLL)
- Type of material
- Shape
- Diameter of the pin
What should be checked on a pulley block prior to use?
The Pre-use checks to be carried out before a block is rigged are;
- Means of attachment
- Smoothness of the wheel
- WLL
- All fastenings are firm and secure
- Correct size for rope.
What is the reduction in WLL for a Snatch Block?
A snatch block is approx. 1/3 of the strength of an ordinary block of the same size. This therefore means a reduction in the SWL as to a block of the same size.
