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Evidence Guide: AHCARB310 - Perform aerial rigging

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

AHCARB310 - Perform aerial rigging

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare work site

  1. Confirm location of worksite and location of correct tree as identified in scope of works
  2. Obtain required site permits and licences
  3. Determine location of above-and-below-ground services
  4. Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk
  5. Ensure scope of works is within capacity and limits of team and equipment
  6. Confirm first aid and rescue personnel, equipment and procedures applicable to tree work
  7. Inspect tree and identify structural defects in relation to tree taxonomy, anatomy and physiology
  8. Consider impact of wind speed and direction on rigging methods
  9. Consider ‘cycles to failure‘ of load-bearing equipment
  10. Select, prepare, and carry out pre-operational and safety checks, on tools, equipment and machinery
  11. Select and use personal protective equipment
  12. Discuss and confirm work-zone locations and areas with work team
  13. Record and implement work health, safety, site, environmental and traffic control measures
Confirm location of worksite and location of correct tree as identified in scope of works

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Obtain required site permits and licences

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine location of above-and-below-ground services

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ensure scope of works is within capacity and limits of team and equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm first aid and rescue personnel, equipment and procedures applicable to tree work

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect tree and identify structural defects in relation to tree taxonomy, anatomy and physiology

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Consider impact of wind speed and direction on rigging methods

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Consider ‘cycles to failure‘ of load-bearing equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, prepare, and carry out pre-operational and safety checks, on tools, equipment and machinery

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and use personal protective equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Discuss and confirm work-zone locations and areas with work team

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record and implement work health, safety, site, environmental and traffic control measures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design and prepare rigging system

  1. Determine load limit of rigging system
  2. Consider mass and dimensions of tree part, centre of gravity, dimensions in relation to working space
  3. Calculate load and balance
  4. Consider breaking strength and safety factor of equipment in use
  5. Select appropriate anchor and attachment points
  6. Determine impact of force under normal and failure conditions and apply safety factor
  7. Design rigging system to allow for load and impact of force
  8. Discuss rigging system with work team
  9. Select appropriate rigging equipment and inspect for defects
  10. Assemble, reassess and install rigging equipment
Determine load limit of rigging system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Consider mass and dimensions of tree part, centre of gravity, dimensions in relation to working space

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate load and balance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Consider breaking strength and safety factor of equipment in use

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select appropriate anchor and attachment points

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine impact of force under normal and failure conditions and apply safety factor

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design rigging system to allow for load and impact of force

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Discuss rigging system with work team

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select appropriate rigging equipment and inspect for defects

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assemble, reassess and install rigging equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform rigging operations

  1. Communicate with work team during operations using voice, hand and whistle signals
  2. Attach rigging and tie, dress, set and finish arborist knots
  3. Test tensioned load
  4. Identify problems, unsafe rigging practices and provide alternative rigging solutions
  5. Monitor and adjust rigging system, taking into account environmental conditions
  6. Control load and raise, lower or redirect as required and in a manner appropriate to worksite
  7. Perform tip lowering, butt lowering, horizontal lowering and lifting as required
  8. Operate lowering and friction devices as required
  9. Match load frequency and size to processing capacity of ground crew
  10. Process plant material and debris during rigging operations
  11. Maintain effective communication with work team during rigging process
Communicate with work team during operations using voice, hand and whistle signals

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Attach rigging and tie, dress, set and finish arborist knots

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test tensioned load

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify problems, unsafe rigging practices and provide alternative rigging solutions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor and adjust rigging system, taking into account environmental conditions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Control load and raise, lower or redirect as required and in a manner appropriate to worksite

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform tip lowering, butt lowering, horizontal lowering and lifting as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate lowering and friction devices as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Match load frequency and size to processing capacity of ground crew

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Process plant material and debris during rigging operations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain effective communication with work team during rigging process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete tree rigging operations

  1. Check proper completion of rigging operations
  2. Retrieve appropriate components of rigging system in a controlled manner
  3. Clean and remove plant material and debris from site
  4. Clean and check tools, equipment and machinery, and store
  5. Clean and store personal protective equipment
Check proper completion of rigging operations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Retrieve appropriate components of rigging system in a controlled manner

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean and remove plant material and debris from site

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean and check tools, equipment and machinery, and store

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean and store personal protective equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare work site

1.1 Confirm location of worksite and location of correct tree as identified in scope of works

1.2 Obtain required site permits and licences

1.3 Determine location of above-and-below-ground services

1.4 Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk

1.5 Ensure scope of works is within capacity and limits of team and equipment

1.6 Confirm first aid and rescue personnel, equipment and procedures applicable to tree work

1.7 Inspect tree and identify structural defects in relation to tree taxonomy, anatomy and physiology

1.8 Consider impact of wind speed and direction on rigging methods

1.9 Consider ‘cycles to failure‘ of load-bearing equipment

1.10 Select, prepare, and carry out pre-operational and safety checks, on tools, equipment and machinery

1.11 Select and use personal protective equipment

1.12 Discuss and confirm work-zone locations and areas with work team

1.13 Record and implement work health, safety, site, environmental and traffic control measures

2. Design and prepare rigging system

2.1 Determine load limit of rigging system

2.2 Consider mass and dimensions of tree part, centre of gravity, dimensions in relation to working space

2.3 Calculate load and balance

2.4 Consider breaking strength and safety factor of equipment in use

2.5 Select appropriate anchor and attachment points

2.6 Determine impact of force under normal and failure conditions and apply safety factor

2.7 Design rigging system to allow for load and impact of force

2.8 Discuss rigging system with work team

2.9 Select appropriate rigging equipment and inspect for defects

2.10 Assemble, reassess and install rigging equipment

3. Perform rigging operations

3.1 Communicate with work team during operations using voice, hand and whistle signals

3.2 Attach rigging and tie, dress, set and finish arborist knots

3.3 Test tensioned load

3.4 Identify problems, unsafe rigging practices and provide alternative rigging solutions

3.5 Monitor and adjust rigging system, taking into account environmental conditions

3.6 Control load and raise, lower or redirect as required and in a manner appropriate to worksite

3.7 Perform tip lowering, butt lowering, horizontal lowering and lifting as required

3.8 Operate lowering and friction devices as required

3.9 Match load frequency and size to processing capacity of ground crew

3.10 Process plant material and debris during rigging operations

3.11 Maintain effective communication with work team during rigging process

4. Complete tree rigging operations

4.1 Check proper completion of rigging operations

4.2 Retrieve appropriate components of rigging system in a controlled manner

4.3 Clean and remove plant material and debris from site

4.4 Clean and check tools, equipment and machinery, and store

4.5 Clean and store personal protective equipment

Required Skills and Knowledge

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare work site

1.1 Confirm location of worksite and location of correct tree as identified in scope of works

1.2 Obtain required site permits and licences

1.3 Determine location of above-and-below-ground services

1.4 Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk

1.5 Ensure scope of works is within capacity and limits of team and equipment

1.6 Confirm first aid and rescue personnel, equipment and procedures applicable to tree work

1.7 Inspect tree and identify structural defects in relation to tree taxonomy, anatomy and physiology

1.8 Consider impact of wind speed and direction on rigging methods

1.9 Consider ‘cycles to failure‘ of load-bearing equipment

1.10 Select, prepare, and carry out pre-operational and safety checks, on tools, equipment and machinery

1.11 Select and use personal protective equipment

1.12 Discuss and confirm work-zone locations and areas with work team

1.13 Record and implement work health, safety, site, environmental and traffic control measures

2. Design and prepare rigging system

2.1 Determine load limit of rigging system

2.2 Consider mass and dimensions of tree part, centre of gravity, dimensions in relation to working space

2.3 Calculate load and balance

2.4 Consider breaking strength and safety factor of equipment in use

2.5 Select appropriate anchor and attachment points

2.6 Determine impact of force under normal and failure conditions and apply safety factor

2.7 Design rigging system to allow for load and impact of force

2.8 Discuss rigging system with work team

2.9 Select appropriate rigging equipment and inspect for defects

2.10 Assemble, reassess and install rigging equipment

3. Perform rigging operations

3.1 Communicate with work team during operations using voice, hand and whistle signals

3.2 Attach rigging and tie, dress, set and finish arborist knots

3.3 Test tensioned load

3.4 Identify problems, unsafe rigging practices and provide alternative rigging solutions

3.5 Monitor and adjust rigging system, taking into account environmental conditions

3.6 Control load and raise, lower or redirect as required and in a manner appropriate to worksite

3.7 Perform tip lowering, butt lowering, horizontal lowering and lifting as required

3.8 Operate lowering and friction devices as required

3.9 Match load frequency and size to processing capacity of ground crew

3.10 Process plant material and debris during rigging operations

3.11 Maintain effective communication with work team during rigging process

4. Complete tree rigging operations

4.1 Check proper completion of rigging operations

4.2 Retrieve appropriate components of rigging system in a controlled manner

4.3 Clean and remove plant material and debris from site

4.4 Clean and check tools, equipment and machinery, and store

4.5 Clean and store personal protective equipment

The candidate must be observed demonstrating rigging techniques for lowering, controlling and redirecting loads during tree pruning and tree removal.

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence for and demonstrate:

confirming location of worksite and location of correct tree as identified in scope of works

ensuring scope of works is within capacity and limits of team and equipment

obtaining required site permits and licenses

determining location of above-and-below-ground services

undertaking a site-specific risk assessment by identifying work health and safety hazards and assessing risk

inspecting trees and identifying structural defects in relation to taxonomic tree species, tree anatomy, and tree physiology

considering impact of wind speed and direction on rigging methods

considering ‘cycles to failure‘ of load-bearing equipment

selecting, preparing, and carrying out pre-operational and safety checks, on tools, equipment and machinery

selecting and using personal protective equipment

discussing and confirming work-zones locations and areas with work team

recording and implementing work health, safety, site, environmental and traffic control measures

communicating with work team during operations using voice, hand and whistle signals

determining load limit of rigging system

selecting appropriate anchor and attachment points

considering mass and dimensions of tree part, centre of gravity, dimensions in relation to working space

calculating load and balance

consider breaking strength and safety factor of equipment in use

determining impact of force under normal and failure conditions and apply safety factor

designing rigging system to allow for load and impact of force

discussing rigging system with work team

selecting appropriate rigging equipment and inspecting for defects

assembling and installing rigging equipment

identifying problems, unsafe rigging practices and provide alternative rigging solutions

maintaining effective communication with work team during rigging process

attaching rigging and using appropriate knots as required

monitoring and adjusting rigging system, taking into account environmental conditions

testing tensioned load

controlling load and raise, lowering or redirecting as required and in a manner appropriate to worksite

operating lowering and friction devices

performing tip lowering, butt lowering, horizontal lowering and lifting as required

matching load frequency and size to processing capacity of ground crew

retrieving appropriate components of rigging system

checking proper completion of rigging operations

cleaning and checking tools, equipment and machinery, replacing if faulty or worn, and storing

use of industry standard terminology to describe arboriculture, equipment and work environment.

The candidate must demonstrate knowledge of:

site-specific risk assessments

above-and-below-ground services

selection, tying methods and purpose of appropriate industry knots

types and purposes of a range of rigging equipment and devices

estimation of distances and dimensions of tree parts and equipment

estimation of centre of gravity for balancing a load

how to estimate areas for safe work zones

estimation of breaking strength, safety factor and cycles to failure

signals and communication systems

common problems and hazards with rigging and their potential consequences and solutions

breaking strain, safe working load and ‘cycles to failure’ for rigging equipment

anatomy, physiology, and taxonomy of tree species for a range of trees

how variations in weather such as wind speed and direction affect work

signs of equipment defects

structural defects in trees

operational use of lowering and friction devices

first aid and rescue personnel, equipment and procedures applicable to tree work.

Range Statement