LEEA Foundation Certificate (Global) – Workbook PDF

LEEA – Foundation Certificate (Global) – Workbook Light Crane Systems (Parallel Track, Bridge and Hoist) Defined as an assembly of lifting devices, bridges, trolleys and tracks with their suspensions for lifting operations and usually manufactured from proprietary sections of steel. There are many...

LEEA – Foundation Certificate (Global) – Workbook Light Crane Systems (Parallel Track, Bridge and Hoist) Defined as an assembly of lifting devices, bridges, trolleys and tracks with their suspensions for lifting operations and usually manufactured from proprietary sections of steel. There are many different manufacturers of these systems and modular in design. There are several advantages to be gained in using a light crane system: ▪ Smooth travelling movements ▪ Silent running of the trolleys ▪ Less wear and less pollution (nylon wheels) ▪ Modular system ▪ Pendulum construction (less stress on the support structure) ▪ Easy installation ▪ Easy ,modifications if required at a later date ▪ Reduced maintenance The general configuration would be two parallel tracks suspended from the ceiling or building structure with a single or dual-bridge bridge crane running between the tracks. The single bridge version would normally be of manual push/pull type long travel fitted with a manual or electric chain hoist suspended from a trolley running inside the bridge profile section, and the dual - bridge would be fitted with a trolley that is suspended between the two bridge sections. This would normally accommodate an electric chain hoist. Installations may be altered and extended with relative ease to meet changing needs of the end user. Power to the hoist and travel/traverse motions can be supplied by festoon cables suspended from trolleys that run inside the track profile, or it can be fed through internal conductor bars mounted inside the top of the track profile. The motor assembly has a collector arm inside the track which picks up the power supply. 101 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook The conditions that offshore containers are transported and handled in mean that the rate of wear and tear is high. An offshore container built to a recognised standard is designed, manufactured and tested to be able to withstand this wear and tear. An offshore container is also designed with pad eyes to enable a suitably designed lifting set to be the recognised method of lifting offshore. There are various types of offshore container in service, including waste skips, baskets and skids for machinery/plant assemblies. Specific marking requirements are prescribed by the standard that the container is designed to conform to. 102 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook There are enhancement factors that must be considered when designing these lifting sets, due to the dynamic motions that an offshore container will experience when being lifted offshore. There must also be a top leg (forerunner) fitted if the lifting set does not hang over the long side of a container to a specific height. This will ensure the rigger does not have to put themselves in danger by standing on top of a container. Notes: 103 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook Mobile Cranes Mobile Cranes can be manufactured in many forms. The most common types of mobile crane are: Yard crane Used in factories and plants where small loads can be carried on the crane’s platform. Truck-mounted crane Has a multi-use crane with fast relocation from job to job. Rough terrain crane Ideal for use on construction sites on uneven ground. Easily able to relocate over rough ground and can pick up a load and carry it whilst moving. City crane Designed to work in often confined spaces of urban areas. 104 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook All terrain crane A very common and popular type of crane. It is designed to travel over different types of terrain and is also able to relocate at speed on highways between sites. Loader crane A truck loader crane, truck-mounted crane, HIAB or ‘crane truck’ is a crane that is mounted to a truck, either just behind the cab or just behind the deck. It is designed to lift goods on and off the truck and means that a driver can deliver goods exactly where is required without the need for a forklift, telehandler or separate crane. 105 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook Tower Cranes Tower Crane Tower cranes are extremely common at major construction sites. Often rising hundreds of feet into the air with a sizeable radius (outreach). The construction crews use tower cranes to lift steel, concrete, waste skips, generators and a wide variety of other building materials. Notes: 106 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook Offshore Pedestal Crane Defined as a pedestal-mounted, elevating and rotating lifting device used to transfer materials and personnel to or from marine vessels, barges, and structures, a standard used to design and manufacture offshore cranes. 107 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook Knowledge Check The questions covered below do not form part of any formal qualification scoring. The intention is to just check and help embed the content we have covered so far. There are 5 questions which are all multiple choice. Question 1: What does ACoP stand for? (Select one answer) □ Approved Certified Operating Procedures □ Accreditation of Certified Operating Procedures □ Applied Codes of Practice □ Approved Codes of Practice Question 2: From the list below, select which ones would fall into the category of Lifting Accessory. (Select all that apply) □ Chain sling □ Crane □ Hoist □ Eyebolt 108 □ Jack □ Shackles Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024  LEEA – Foundation Certificate (Global) – Workbook Question 3: From the list below, please select all that would fit into the criteria of 'Types of Verification'. (Select all that apply) □ Hardness test □ Electromagnetic wire rope examination □ Pre and Post Inspection □ Proof load test □ Shear test Question 4: Velocity Ratio = Distance moved by effort ÷ Distance moved by load (or DME ÷ DML) □ True □ False Question 5: Who is responsible for the disposal of lifting equipment? (Select one answer) □ A. Employer □ B. Owner / End user □ C. Competent Person 109 Page © LEEA Academy – FOU (Global) Workbook v1.6 Jan 2024