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

This unit of competency could be assessed by observation of on-site operation of an excavator and the use of different attachments to complete demolition tasks on large and complex buildings, working as part of a team.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

A person should demonstrate the ability to operate an mobile plant on suspended floors during the floor demolition process completing the following mandatory demolition tasks at a minimum of two different work sites:

progressive demolition of roof, wall and floor from a suspended slab

removal of rubble

including:

assessment of accumulated loads

knowledge of the structural engineering constraints and requirements for working on a suspended slab

knowledge of the requirements, procedures and instructions for conducting demolition mobile plant operations

implementation of requirements, procedures and techniques for the safe, effective and efficient completion of demolition mobile plant operations, including:

working with others to undertake and complete demolition excavator operations that meet all of the required outcomes

consistent timely completion of demolition mobile plant operations that safely, effectively and efficiently meet the required outcomes.

Context of and specific resources for assessment

Assessment of this unit:

must be in the context of the work environment

must meet relevant compliance requirements.

Resource implications for assessment include:

an induction procedure

realistic tasks covering the mandatory task requirements

relevant specifications and work instructions

plant, tools and equipment as listed appropriate to applying safe work practices

support materials appropriate to activity

workplace instructions relating to safe work practices and addressing hazards and emergencies

information relevant to each task, such as safety data sheets, work plans and approved specifications, forms and procedures manuals.

Method of assessment

Assessment for this unit must verify the practical application of the required skills and knowledge, using a combination of the following methods:

direct observation of mandated tasks

questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application

review of relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.

Guidance information for assessment

This unit could be assessed on its own or in combination with other units relevant to the job function.

Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Assessment processes and techniques should, as far as is practical, take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.

Required skills

learning skills to:

recognise signs indicating undiscovered hazards on a demolition site, for example presence of termites

respond to change, such as differences in current work site environmental and sustainability requirements

numeracy skills to:

estimate weight of accumulated volumes of demolition debris on suspended floors

calculate combined weight of mobile plant and demolition debris on suspended floors

check levels of lubricants in equipment

perform measurements and calculations associated with work, such as when determining specified length of wall to be removed

oral communication skills to:

enable clear and direct communication, using questioning to identify and confirm requirements, and share information

report hazards on the work site, including faults in tools, equipment and materials

use language and concepts appropriate to cultural differences

reading skills to:

interpret documentation relating to work requirements, including:

drawings and specifications

job safety analyses (JSA)

safe work method statements (SWMS)

safety data sheets (SDS)

understand written instructions, procedures and signage

writing skills to complete pre-operational checklists, equipment fault forms and log sheets

Required knowledge

basic principles of structural engineering relating to:

placement of loads on suspended floors during demolition of the same floor

propping requirements

stability of buildings and structures throughout the demolition process

general construction terminology

hazards associated with the operation of mobile plant on suspended floors on residential, commercial and industrial demolition sites

hazards associated with inappropriate demolition methodology, including structural collapse or the premature failure of floors or other structural elements

methods for materials storage and disposal, including environmentally friendly waste management

method of operation and maintenance requirements of mobile plant and attachments

types, characteristics, uses and limitations of mobile plant in the demolition industry

workplace and equipment safety requirements

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.

Compliance requirements may include:

Australian standards relevant to plant operation and demolition

codes of practice for plant operation

legislative and regulatory requirements for plant operation

manufacturer guidelines and specifications

organisational requirements and procedures

requirements of Employment and Workplace Relations legislation

requirements of Equal Employment Opportunity and Disability Discrimination legislation

site requirements.

Information regarding work task instructions may include:

advice and guidelines relating to regulatory and legislative requirements for mechanical demolition processes

advice and instructions from structural engineer regarding placement of loads on suspended floors

approved demolition plan

current Australian standards relating to operating mobile plant on suspended floors on demolition sites

diagrams or sketches

instructions issued by authorised organisational or external personnel

memos

SWMS relating to the conduct of mechanical demolition processes

safety data sheets

site signage

site traffic management plan

verbal, written and graphical instructions, including manufacturer specifications and instructions where specified

work bulletins

work schedules, plans and specifications.

Work health and safety requirements must comply with state or territory legislation and project safety plan may include:

emergency procedures, including extinguishing fires, organisational first aid requirements, and evacuation procedures

handling activities that may require the assistance of others or the use of manual or mechanical lifting devices where size, weight or other issues, such as a disability are a factor

hazard control

hazardous materials and substances, including asbestos, lead-based paints, dust, pesticide residue, animal residue and the safe handling or quarantining procedures for each

personal protective equipment (PPE) prescribed under legislation, regulations and workplace policies and practices

safe operating procedures, including operational risk assessment and treatments associated with:

falling objects

lighting

plant movement

power cables, including overhead service trays, cables and conduits

restricted access barriers

surrounding structures

traffic control

trip hazards

work site visitors and the public

working at heights

working in confined spaces

working in proximity to others

traffic management, barriers and signage

use of tools and equipment

workplace environmental requirements.

Environmental requirements may include:

clean-up management

control of spills and leaks of hydraulics, oil and fuels

dust and noise control

sedimentation control

vibration management

waste management.

Attachments may include:

buckets

grapples

hammers

magnets

pulverisers

rippers

rock breakers

shears.

Checks must include for:

bulges

factures

leaks

splits.

Site inspection may include:

assessing condition of property and surrounds

communicating with those who may be affected by the demolition task

determining floor loadings

erecting scaffolding and public protection

identifying hazardous materials

identifying position of hoses and cables clear of hazards

installing supports and bracing

location of signage and barricades

providing site safety.

Safe operating techniques for mobile plant may include:

emergency shut-down and stopping

management of hazards and risks, including:

falls from heights

fires

hazardous materials

overloading of suspended slab

structures

structural collapse

uneven or unstable terrain

safe parking practices ensuring:

access ways are clear

equipment or machinery is:

located a safe distance from excavations

located away from refuelling sites

secured from unauthorised access or movement.

Hazards arising from demolition process may include:

dust

fire

noise

vibration.

Demolition tasks that may be completed using mobile plant and attachments on suspended floors include:

progressive demolition of roof, wall and suspended slab (floor)

removal of demolition rubble to specified locations for disposal.

Communication may include the use of:

hand signals

mobile equipment

radios.

Monitoring of work site conditions and progress must include:

degraded structures

hazardous materials

live edges

overhead and below ground services

potential effect to neighbouring properties

potential effect to the general public

termite activity

trenches

unconsolidated ground or fill materials

underground storage tanks.

Operator maintenance tasks:

must include:

cleaning

authorised servicing

monitoring, recording and reporting faults

may include:

authorised minor replacements

assisting maintenance personnel during maintenance and repair activities.