Podcast
Questions and Answers
What is one method to prevent the displacement of loads from a hook during lifting?
What is one method to prevent the displacement of loads from a hook during lifting?
- Incorporating more pulleys in the system
- Using a hook made exclusively of plastic
- Reducing the load weight by half
- Incorporating a safety device like a latch (correct)
According to the ACoP to Regulation 6(1) of LOLER, what type of devices should be provided for lifting?
According to the ACoP to Regulation 6(1) of LOLER, what type of devices should be provided for lifting?
- Devices that reduce the risk of load displacement (correct)
- Devices that can only support static loads
- Devices that can handle all types of materials
- Devices that require minimal inspection
What is the maximum fleet angle allowed for rotation-resistant ropes?
What is the maximum fleet angle allowed for rotation-resistant ropes?
- 10°
- 4°
- 2° (correct)
- 5°
What happens to wire ropes entering a sheave at a larger fleet angle?
What happens to wire ropes entering a sheave at a larger fleet angle?
What preventive measures can be taken to ensure that the load rope cannot run off the side of the rope drum?
What preventive measures can be taken to ensure that the load rope cannot run off the side of the rope drum?
What is necessary for the visual examination of a machine to be adequate?
What is necessary for the visual examination of a machine to be adequate?
Who should perform the examinations according to the requirements outlined?
Who should perform the examinations according to the requirements outlined?
Which procedures must be followed when examining parts such as hooks and chains?
Which procedures must be followed when examining parts such as hooks and chains?
What should be ensured about parts during examination according to the outlined criteria?
What should be ensured about parts during examination according to the outlined criteria?
What aspect must be checked regarding mating parts during the examination?
What aspect must be checked regarding mating parts during the examination?
What is the primary use of the ferrule secured eye made using the turn-back-loop method?
What is the primary use of the ferrule secured eye made using the turn-back-loop method?
How does the live side of the load rope enter the asymmetrical wedge socket?
How does the live side of the load rope enter the asymmetrical wedge socket?
What minimum safety factor must be considered when fastening rope onto the rope drum?
What minimum safety factor must be considered when fastening rope onto the rope drum?
What should be included in the operator pre-use checks for a hoist?
What should be included in the operator pre-use checks for a hoist?
Which of the following rope terminations is NOT mentioned as acceptable?
Which of the following rope terminations is NOT mentioned as acceptable?
Which of the following is NOT a recommended pre-use check for a hoist?
Which of the following is NOT a recommended pre-use check for a hoist?
What must be ensured about the anchorages on the rope?
What must be ensured about the anchorages on the rope?
Which termination method is allowed according to BS EN 13411 for rope diameters up to 8mm?
Which termination method is allowed according to BS EN 13411 for rope diameters up to 8mm?
What is the purpose of the pre-use checks on a hoist?
What is the purpose of the pre-use checks on a hoist?
What is a requirement for the connections and individual components of hoists?
What is a requirement for the connections and individual components of hoists?
What should be done if the hoist is fitted to a runway beam?
What should be done if the hoist is fitted to a runway beam?
What must be taken into account when selecting fastening elements for the rope's fixing point?
What must be taken into account when selecting fastening elements for the rope's fixing point?
What is the purpose of 'hold-to-run' control elements in manually-controlled hoists?
What is the purpose of 'hold-to-run' control elements in manually-controlled hoists?
Which inspection should be conducted by a Responsible Person?
Which inspection should be conducted by a Responsible Person?
What is a consequence of incorrect pulling alignment in an asymmetrical wedge socket?
What is a consequence of incorrect pulling alignment in an asymmetrical wedge socket?
According to the electromagnetic compatibility requirements, how should hoists operate?
According to the electromagnetic compatibility requirements, how should hoists operate?
What aspect of the load rope should be checked during pre-use inspections?
What aspect of the load rope should be checked during pre-use inspections?
Which of the following describes a valid action regarding the emergency stop button?
Which of the following describes a valid action regarding the emergency stop button?
What is the significance of overload protection in hoists with a Working Load Limit (WLL) of 1 tonne or more?
What is the significance of overload protection in hoists with a Working Load Limit (WLL) of 1 tonne or more?
Which document should be consulted for guidelines on in-service inspection of hoists?
Which document should be consulted for guidelines on in-service inspection of hoists?
What must moving transmission parts be designed to protect against?
What must moving transmission parts be designed to protect against?
For hoists installed in such a way that the overturning moment exceeds 40,000Nm, what must be installed?
For hoists installed in such a way that the overturning moment exceeds 40,000Nm, what must be installed?
What materials are typically specified for the lifting media of hoists?
What materials are typically specified for the lifting media of hoists?
What is an important feature of the design of hoist components?
What is an important feature of the design of hoist components?
Study Notes
Terminology and Methods
- Ferrule secured eye created via the turn-back-loop method is designed to form a homogenous joint using a compressed ferrule.
- Predominantly used in winching operations today.
Asymmetrical Wedge Socket
- Load rope enters the straight edge of the socket aligned with the load pin, facilitating proper load alignment.
- Axial alignment prevents kinking or cutting of the rope.
- BS EN 13411-6:2004 outlines two methods to secure the dead end of the rope, safeguarding against slippage.
Rope to Rope Drum Connection
- Rope fastening must accommodate at least 2.5 times the remaining static force at the fastening point given the hoist's rated capacity.
- Minimum of two rope windings must remain on the drum before the rope's fixing point.
- Selection of fastening elements must consider rope and drum contours.
- Anchorages must withstand 2.5 times the static rope force from the rated hoist capacity without deforming.
- Termination options include various wedge sockets and clamps as per BS EN standards.
Hoist Standards and Requirements
- Features must be included in connections and components to prevent self-loosening during operation.
- Protection measures for moving parts are required to mitigate risks for exposed personnel.
Control Devices
- Manual hoists must have 'hold-to-run' controls to interrupt power supply when actuating elements are released.
Electromagnetic Compatibility
- Hoists must adhere to EN 60204-32, ensuring minimal electromagnetic interference with other machinery.
Overload Protection
- Hoists with a WLL of 1 tonne or greater must have devices to warn operators of overload and prevent dangerous movements.
- Consideration for upgrading older equipment may include safety devices or design changes for hooks.
Fleet Angle and Rope Drives
- Fleet angle configurations must not exceed 4° for standard ropes and 2° for rotation-resistant ropes to prevent excessive twisting.
- Increasing fleet angles lead to greater twisting of the wire rope affecting performance.
Rope Drums
- Hoist design must prevent rope from running off the drum side; measures include flanged drum end plates and rope guides.
- Maintenance manuals will provide additional technical information necessary for installation and upkeep.
Pre-Use Checks
- Include a visual inspection for damage, checking limit switches, brake functionality, and the condition of the load rope.
- Ensure the hook operates smoothly, and emergency stop button functions correctly.
In-Service Inspection
- Visual inspections should occur pre-use and include assessments of fixings, suspension points, and supporting structures.
- Competent personnel must conduct examinations per statutory requirements and quality policies.
- Detailed evaluations must consider the condition of all operating mechanisms, including hooks and brakes, ensuring safe operation.
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Description
This quiz focuses on the termination methods used in winching operations, specifically looking at ferrule secured eyes made using the turn-back-loop method and asymmetrical wedge sockets. Understand the importance of these methods in preventing rope damage and ensuring efficient lifting.
