Outrigger Jacks and Beams Overview

Questions and Answers

What must the examiner record regarding the condition of the rope?

Length of the rope

Percentage severity rating (correct)

Weight of the rope

Age of the rope

How is the total combined severity for the rope determined?

By assessing physical damage only

By averaging the individual ratings

By factoring in environmental conditions

By summing all individual severity ratings (correct)

In addition to a percentage, how else can severity ratings be indicated?

A color classification

A graphical representation

A verbal description (correct)

A numeric code

What factor may influence the timing of the next examination after reviewing the rope's condition?

The findings from the current examination Signup and view all the answers

Which assessment criteria is NOT mentioned as part of the examination record?

Decrease in strength Signup and view all the answers

What should be visually checked on outrigger beams during examination?

Levelness of the beams Signup and view all the answers

What is a potential indication of a leaking hydraulic system in an outrigger beam?

Hydraulic oil presence inside the beam Signup and view all the answers

What should be done to ensure that the locking pins on the outrigger are functional?

Check that they can be inserted easily when aligned Signup and view all the answers

What should the operator observe while setting up the crane and outriggers?

Smooth operation of the equipment Signup and view all the answers

What could be a sign of serious damage to the outriggers?

Deformation in hoses and pipes Signup and view all the answers

What indicates that the jack ram may have a seal leak?

A film of oil on the jack ram Signup and view all the answers

What condition should the operating controls of the crane be in?

Clearly labelled and operational Signup and view all the answers

What does the presence of cracks in outrigger components signify?

Potentially dangerous structural failure Signup and view all the answers

What is the primary consideration when positioning the crane for examination?

To be located in a well-lit area Signup and view all the answers

Which of the following is NOT a responsibility of the examiner prior to conducting a thorough examination?

Cleaning the crane Signup and view all the answers

What documentation is necessary for verifying the I.D. and rated capacity markings?

Manufacturer’s instructions/manuals and previous reports Signup and view all the answers

Why is it important for the crane to be clean before examination?

To prevent concealment of any defects Signup and view all the answers

Which of the following elements is essential for access arrangements during the examination process?

A combination of access structures and trained personnel Signup and view all the answers

What should the competent person review in terms of the crane’s history?

Recorded malfunctions and modifications Signup and view all the answers

What must be agreed upon between the owner and the competent person prior to starting the examination?

PPE requirements Signup and view all the answers

What type of work platforms may be used for arranging safe access to a crane?

Elevated work platforms or scaffolding Signup and view all the answers

Study Notes

Outrigger Jacks and Beams

Ensure outrigger beams are level; misalignment may signal cracked welds, worn sections, or missing pads.
Inspect hoses, connections, and pipes for cracks, deformations, or leaks.
Check beam interiors for hydraulic oil presence to detect leaks; use access holes if available.
A dry jack ram is essential; oil residue indicates potential seal leakage, worsening over time.
Observe smooth operations during crane setup and check alignment of locking holes and availability of pins.
Look for hose and pipe deformation for early signs of damage and operational issues.

Controls and Level Indicators

Verify that operating controls are in good condition and clearly labeled.

Preparation for a Thorough Examination

Position the crane in a safe area for examination.
Conduct inspections in well-lit conditions; use portable lighting if necessary.
The crane must be clean to avoid concealed defects, with cleaning not the examiner's responsibility.
Ensure safe access and egress with approved structures like walkways, platforms, or scaffolding.
Confirm that personnel using portable access equipment are trained and competent, with agreed-upon PPE requirements.

Identification and Documentation

Identification and rated capacity markings must be clear and verified against crane records.
Key documents include test certificates, legal conformity declarations, manufacturer manuals, and prior examination reports.

History and Records

Examine for recorded defects, malfunctions, and past modifications or alterations.
Review previous examination reports, in-service inspections, and maintenance logs.
Record findings in a structured report format.

Severity Ratings and Assessment

Ratings for the examination record include broken wires, diameter decrease, corrosion, and overall damage.
Sum individual severity ratings to create a total combined severity percentage.
Optionally, use descriptive severity terms instead of percentages based on an equivalence table provided.
The examiner must decide the rope's safety for continued service; if approved, consideration may be given to reducing the time before the next examination due to current deterioration levels.

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Description

This quiz covers key aspects of outrigger jacks and beams, focusing on their visual inspection and structural integrity. Understanding how to identify potential issues like cracked welds and worn sections is crucial for safety and effective operation.