Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

AHCARB311 Mapping and Delivery Guide
Tie, dress, set and finish arborist knots

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency AHCARB311 - Tie, dress, set and finish arborist knots
Description
Employability Skills
Learning Outcomes and Application This unit of competency describes the skills and knowledge required to tie, dress, set and finish arborist knots, hitches and bends.This unit applies to ground based workers undertake defined activities with appropriate methods, tools and information, work in a structured context , apply knowledge and skills to demonstrate limited autonomy and judgement, and provide solutions to a limited range of predictable problems. Work is implemented with low risk work procedures and to comply with Safe Work Method Statement documentation.Licensing, legislative, regulatory, or certification requirements apply to this unit in some states and territories at the time of publication, and may differ according to jurisdiction. Specific determination should be sought through the relevant State or Territory. Works involving this unit of competency may be subject to local tree protection and preservation laws, and the relevant content of applicable Australian Standards.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

It is an industry requirement for the assessment of the knots appropriate to the work application as listed in the Range of Conditions section of this unit of competency.

Assessment must be demonstrated consistently over time in a suitable range of contexts and have a productivity-based outcome. No single assessment event or report is sufficient to achieve competency in this unit.

Assessment may be conducted in a simulated or real work environment, however determination of competency requires the application of work practices under work conditions.

The mandatory equipment and materials used to gather evidence for assessment include:

equipment:

static and dynamic rope kit

personal protective equipment (PPE)

first aid and emergency kit

traffic management kit

materials:

knot identification form

hazard identification and risk control form

equipment and PPE check form

emergency preparation form

work communications form

Assessors must satisfy current standards for RTOs in the assessment of arboriculture units of competency.

Assessment must be conducted only by persons who have:

arboriculture vocational competencies at least to the level being assessed

current arboriculture industry skills directly relevant to the unit of competency being assessed
Prerequisites/co-requisites
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Assist in preparation of work site
  • Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk
  • Confirm first aid and emergency equipment and procedures applicable to tree work
  • Carry out pre-operational and safety checks on ropes and equipment
  • Select and use appropriate personal protective equipment
  • Record and implement work health, safety, site, environmental and traffic control measures
       
Element: Tie, dress and set arborist knots
  • Communicate with work team during operations using voice, hand and whistle signals
  • Determine work application for knot for ground-based, aerial, rigging and climbing work tasks
  • Determine appropriate knot for locking and non-locking attributes, strength, impact on rope strength, loosening and slippage
  • Determine loss of rope strength in using selected knot
  • Determine appropriate rope for knot application
  • Determine requirements for secondary knots and stopper knots
  • Tie rope to form intended knot
  • Leave appropriate tail length approximately five times diameter of rope
  • Dress knot to align all parts of knot
  • Adjust knot to appropriate proportions
  • Set knot to ‘tighten and load’ knot prior to use
  • Finish knot with selected stopper knot, tucked tail or suitable tail length
       
Element: Inspect and use knot
  • Inspect completed knot
  • Check knot for correctness of assembly
  • Confirm knot for correct work application
  • Maintain effective communication with work team
  • Install and use knot in work application
  • Untie knot at completion of work task
       
Element: Complete knot operations
  • Clean and check ropes
  • Report and tag faulty or worn ropes
  • Clean and store personal protective equipment
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Element

Performance criteria

Elements describe the essential outcomes.

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

1. Assist in preparation of work site

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

1.2 Confirm first aid and emergency equipment and procedures applicable to tree work

1.3 Carry out pre-operational and safety checks on ropes and equipment

1.4 Select and use appropriate personal protective equipment

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

2. Tie, dress and set arborist knots

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

2.2 Determine work application for knot for ground-based, aerial, rigging and climbing work tasks

2.3 Determine appropriate knot for locking and non-locking attributes, strength, impact on rope strength, loosening and slippage

2.4 Determine loss of rope strength in using selected knot

2.5 Determine appropriate rope for knot application

2.6 Determine requirements for secondary knots and stopper knots

2.7 Tie rope to form intended knot

2.8 Leave appropriate tail length approximately five times diameter of rope

2.9 Dress knot to align all parts of knot

2.10 Adjust knot to appropriate proportions

2.11 Set knot to ‘tighten and load’ knot prior to use

2.12 Finish knot with selected stopper knot, tucked tail or suitable tail length

3. Inspect and use knot

3.1 Inspect completed knot

3.2 Check knot for correctness of assembly

3.3 Confirm knot for correct work application

3.4 Maintain effective communication with work team

3.5 Install and use knot in work application

3.6 Untie knot at completion of work task

4. Complete knot operations

4.1 Clean and check ropes

4.2 Report and tag faulty or worn ropes

4.3 Clean and store personal protective equipment

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:

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

confirming first aid and emergency equipment and procedures applicable to tree work

selecting and using appropriate personal protective equipment

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 work application for:

ground-based knots

aerial knots

rigging knots and

climbing knots

determining appropriate knot for locking and non-locking attributes, strength, impact on rope strength, loosening and slippage

determining loss of rope strength using selected knot

determining appropriate rope for knot application

determining requirements for secondary knots and stopper knots

determining appropriate rope used for knot application

tying knot to form intended knot

leaving appropriate tail length approximately five times diameter of rope

dressing knot to align all parts of knot

setting knot to ‘tighten and load’ knot prior to use

finishing knot with selected stopper knot as required

inspecting completed knot

checking knot for correctness of assembly

confirming knot for correct work application

maintaining effective communication with work team

installing and using knot in work application

untying knot at completion of work task

clean and check ropes

reporting and tagging faulty or worn ropes

cleaning and storing personal protective equipment.

The candidate must demonstrate knowledge of:

site-specific risk assessment

first aid and emergency equipment and procedures

personal protective equipment

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

voice, hand and whistle signals

work applications for knots

knots for ground-based rigging tasks

knots for aerial rigging tasks

knots for climbing work tasks

determination of appropriate knot by evaluation of knot attributes:

locking and non-locking attributes

impact on rope strength

loosening and

slippage

determining loss of rope strength using selected knot

determination of appropriate rope for knot application

knot tying

intended knot

tail length

diameter of rope

alignment of knot parts

knot setting

knot tightening and loading

stopper knot

knot finishing

correctness of assembly and use in application

inspection, installation and use of knots

effective work team communications

tagging system

checking and cleaning ropes.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Element

Performance criteria

Elements describe the essential outcomes.

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

1. Assist in preparation of work site

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

1.2 Confirm first aid and emergency equipment and procedures applicable to tree work

1.3 Carry out pre-operational and safety checks on ropes and equipment

1.4 Select and use appropriate personal protective equipment

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

2. Tie, dress and set arborist knots

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

2.2 Determine work application for knot for ground-based, aerial, rigging and climbing work tasks

2.3 Determine appropriate knot for locking and non-locking attributes, strength, impact on rope strength, loosening and slippage

2.4 Determine loss of rope strength in using selected knot

2.5 Determine appropriate rope for knot application

2.6 Determine requirements for secondary knots and stopper knots

2.7 Tie rope to form intended knot

2.8 Leave appropriate tail length approximately five times diameter of rope

2.9 Dress knot to align all parts of knot

2.10 Adjust knot to appropriate proportions

2.11 Set knot to ‘tighten and load’ knot prior to use

2.12 Finish knot with selected stopper knot, tucked tail or suitable tail length

3. Inspect and use knot

3.1 Inspect completed knot

3.2 Check knot for correctness of assembly

3.3 Confirm knot for correct work application

3.4 Maintain effective communication with work team

3.5 Install and use knot in work application

3.6 Untie knot at completion of work task

4. Complete knot operations

4.1 Clean and check ropes

4.2 Report and tag faulty or worn ropes

4.3 Clean and store personal protective equipment

Ground-based Rigging applications must include knowledge of:

Alpine butterfly knot

Bowline on the bight

Cows hitch with better half

Clove hitch + two half hitches

Half hitch pre knot

Klemheist friction knot

Marline pre knot

Marline spike hitch

Riggers knot + two half hitches

Running bowline

Sheet bend

Slippery sheet bend

Timber hitch

Zeppelin bend

Above Ground applications must include knowledge of:

Scaffold knot

Double Fishermans Knot/Prusik loop

Girth Hitch

English Prusik Knot

Marlin Spike

Clove Hitch

Double Overhand Stopper Knot

Sheet bend

Slippery Sheet Bend

Bowline Knot

Running Bowline Knot

Aerial Rigging applications must include knowledge of:

Cows hitch

Riggers knot + two half hitches

Clove hitch + two half hitches

Alpine butterfly knot

Half hitch pre knot

Marline pre knot

Marline spike hitch

Zeppelin bend

Running bowline

Bowline on the bight

Rolling hitch

Timber hitch

Sheet bend

Slippery sheet bend
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk 
Confirm first aid and emergency equipment and procedures applicable to tree work 
Carry out pre-operational and safety checks on ropes and equipment 
Select and use appropriate personal protective equipment 
Record and implement work health, safety, site, environmental and traffic control measures 
Communicate with work team during operations using voice, hand and whistle signals 
Determine work application for knot for ground-based, aerial, rigging and climbing work tasks 
Determine appropriate knot for locking and non-locking attributes, strength, impact on rope strength, loosening and slippage 
Determine loss of rope strength in using selected knot 
Determine appropriate rope for knot application 
Determine requirements for secondary knots and stopper knots 
Tie rope to form intended knot 
Leave appropriate tail length approximately five times diameter of rope 
Dress knot to align all parts of knot 
Adjust knot to appropriate proportions 
Set knot to ‘tighten and load’ knot prior to use 
Finish knot with selected stopper knot, tucked tail or suitable tail length 
Inspect completed knot 
Check knot for correctness of assembly 
Confirm knot for correct work application 
Maintain effective communication with work team 
Install and use knot in work application 
Untie knot at completion of work task 
Clean and check ropes 
Report and tag faulty or worn ropes 
Clean and store personal protective equipment 

Forms

Assessment Cover Sheet

AHCARB311 - Tie, dress, set and finish arborist knots
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

AHCARB311 - Tie, dress, set and finish arborist knots

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: