Unit of competency Outline

Date retreived
23/07/2026 4:22 AM AWST

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Conduct continuous bucket trencher operations

Conduct continuous bucket trencher operations

Unit of competency
National Code
RIIMPO328A
State Code
WB708
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
22/06/2011
State Implementation and Classification
Approved Date
11/02/2010
Field of Education
030717 - Plant And Machine Operations
Original Release Date
11/02/2010
Nominal Hours
32
Description
This unit covers conducting continuous bucket trencher operations in the civil construction industry. It includes: planning and preparing; conducting machine pre-operational checks; operating the machine; selecting, removing and fitting attachments; relocating the machine; carrying out machine operator maintenance; and cleaning up.
Notes
Elements and Performance Criteria
1. Plan and prepare
  • 1.1. Access, interpret and apply compliance documentation relevant to conduct continuous bucket trencher operations
  • 1.2. Obtain, confirm and apply work instructions to the allotted task
  • 1.3. Obtain, confirm and apply safety requirements to the allotted task
  • 1.4. Identify, obtain and implement signage requirements from the project traffic management plan
  • 1.5. Select plant, tools and equipment to carry out tasks that are consistent with the requirements of the job, check them for serviceability and rectify or report any faults
  • 1.6. Identity, confirm and apply environmental protection requirements from the project environmental management plan, to the allotted task
2. Conduct machine pre-operational checks
  • 2.1. Carry out pre-start, start-up, park and shutdown procedures
  • 2.2. Check continuous bucket trencher controls and functions, including implements or other attachments, brakes and manoeuvrability for serviceability and report or rectify any faults
3. Operate continuous bucket trencher
  • 3.1. Identity site hazards associated with continuous bucket trencher operations and use safe operating techniques to minimise risk
  • 3.2. Identify and apply operating techniques for continuous bucket trencher to achieve optimum output in accordance with design specifications while achieving specified tolerances
  • 3.3. Operate excavator to work instructions
  • 3.4. Conduct trenching to specification and without damage to existing underground services
  • 3.5. Excavate, construct and clean trenches/drains to widths and depths in accordance with job specifications and regulatory requirements
4. Select, remove and fit attachments
  • 4.1. Select attachment for the task
  • 4.2. Remove and fit attachment
  • 4.3. Test attachment to ensure correct fitting and operation
  • 4.4. Use attachment in accordance with recommendations and design limits
  • 4.5. Clean and store removed attachments in designated location
5. Relocate continuous bucket trencher
  • 5.1. Move safely continuous bucket trencher between worksites, observing relevant codes and traffic management requirements
  • 5.2. Prepare for relocation continuous bucket trencher
6. Carry out machine operator maintenance
  • 6.1. Safely park, shutdown and prepare machine for maintenance
  • 6.2. Conduct inspection and fault finding
  • 6.3. Remove and replace defective parts safely and effectively
  • 6.4. Carry out regular programmed maintenance tasks
7. Clean up
  • 7.1. Clean work area and dispose of or recycle materials in accordance with project environmental management plan
  • 7.2. Clean, check, maintain and store plant, tools and equipment in accordance with manufacturer's recommendations and standard work practices
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Relevant compliance documentation
may include:
legislative, organisation and site requirements and procedures
manufacturer's guidelines and specifications
Australian standards
codes of practice
Employment and workplace relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Continuous bucket trenchers are:
self-propelled purpose designed crawler tractor machine with a continuous bucket assembly mounted on the front of the machine
Continuous bucket trencher tasks are to include:
trenching and draining
Continuous bucket trencher tasks may include:
pipe laying
Work instructions may include:
plans, specifications, quality requirements and operational details
quality requirements may include but not be limited to dimensions, tolerances, standards of work and material standards as detailed in the project drawings, specifications and project documentation to meet client satisfaction
Safety requirements are to be:
in accordance with state or territory legislation and regulations, organisational safety policies and procedures, and project safety plan
Safety requirements may include:
protective clothing and equipment, use of tools and equipment, workplace environment and safety, handling of materials, use of fire fighting equipment, use of First Aid equipment, hazard control and hazardous materials and substances
personal protective equipment is to include that prescribed under legislation, regulation and workplace policies and practices
safe operating procedures which are to include but not be limited to recognising and preventing hazards associated with underground and overhead services, other machines, personnel, restricted access barriers, traffic control, working at heights, working in proximity to others, worksite visitors and the public
safe parking practices which is to include but not be limited to ensuring access ways are clear, equipment/ machinery is away from overhangs and refuelling sites, safe distance from excavations, and secured from unauthorised access or movement
hazards and risks may include but not be limited to uneven/unstable terrain, trees, fires, overhead and underground services, bridges, buildings, excavations, traffic, embankments, cuttings, structures and hazardous materials
emergency procedures related to this unit are to include but may not be limited to emergency shutdown and stopping, extinguishing fires, organisational First Aid requirements and evacuation
Tools and equipment are to include:
hand tools and maintenance equipment relevant to the particular machine
Environmental requirements are to include:
organisational/project environmental management plan, waste management, water quality protection, noise, vibration, dust and clean-up management
Attachments are to include:
buckets
Attachments may include:
rock saws
Operator maintenance is to include:
cleaning, authorised servicing and the monitoring, recording and reporting of faults. It may also include the conduct of authorised minor replacements and the provision of assistance to maintenance personnel during maintenance and repair activities
Materials may include:
clays, silts, stone, gravel, mud, rock, sand, topsoil, blended materials, organic materials, typical construction site materials/waste and bituminous mixes
rock types may include metamorphic, igneous and sedimentary

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:
knowledge of the requirements, procedures and instructions for conducting continuous bucket trencher operations
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of continuous bucket trencher operations, including:
operate a trenching machine in straight line for 200m to line, level and specified depth
trenches/drains cleared to width and depth as per plan
working with others to undertake and complete continuous bucket trencher operations that meet all of the required outcomes
consistent timely completion of continuous bucket trencher operations that safely, effectively and efficiently meet the required outcomes
laser guidance or ATS are not to be used to assist in control of the machine during assessment
Context of and specific resources for assessment
This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.
The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.
Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.
Aboriginal people and other people from a non English speaking background may have second language issues.
Assessment of this competency requires typical resources normally used in the work environment. Selection and use of resources for particular worksites may differ due to site circumstances.
Where applicable, physical resources should include equipment modified for people with disabilities.
Access must be provided to appropriate learning and/or assessment support when required.
Method of assessment
This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:
written and/or oral assessment of the candidate's required knowledge
observed, documented and/or first hand testimonial evidence of the candidate's:
implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes, including:
operate a trenching machine in straight line for 200m to line, level and specified depth
trenches/drains cleared to width and depth as per plan
consistently achieving the required outcomes
first hand testimonial evidence of the candidate's:
working with others to undertake and complete the continuous bucket trencher operations
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.

Replaces
State Code National Code Title Type
W2092 BCCPO3015B Conduct continuous bucket trencher operations Unit of competency
Replaced By
State Code National Code Title Type
WH433 RIIMPO328D Conduct continuous bucket trencher operations Unit of competency
No information