DEMOLITION Operate a hydraulic excavator on demolition sites

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1 1 of 7 level: 3 credit: 25 planned review date: November 2007 sub-field: purpose: entry information: accreditation option: moderation option: Civil Works and Services People credited with this unit standard are able to: demonstrate the functions of hydraulic excavators and their attachments; prepare, manoeuvre and control an excavator and attachments on a demolition site; sort, place and load materials; and move excavator between sites. Prerequisite: either Unit 16701, Demonstrate knowledge and skills for driving on a road for endorsement W (wheels); or Unit 16703, Demonstrate knowledge and skills for driving on a road for endorsement T (tracks); or demonstrate equivalent knowledge and skills. Evaluation of documentation and visit by NZQA and industry. A centrally established and directed national moderation system has been set up by Infrastructure ITO. special notes: 1 Definitions company requirements - the policy, procedures, and methodologies of the company, including requirements documented in company and site health and safety plans, quality assurance documents, and contract work programmes; job instructions - instructions given to the operator prior to commencing a job which may include site safety instructions, contract drawings, and written memos; walk round - to walk round the machine inspecting it and its environment for hazards and removing hazards that may impair start-up; workplace - building and construction environments where demolition skills are required, including single or multi-storey structures;

2 2 of 7 2 The following legislation, manuals, codes, specifications and their subsequent amendments must be complied with: Building Act 1991; Hazardous Substances and New Organisms Act 1996; Health and Safety in Employment Act 1992; Heath and Safety in Employment (Asbestos) Regulations 1998; Health and Safety in Employment Regulations 1995; Historic Places Act 1993; Resource Management Act 1991; Building Regulations 1992; Explosives Regulations 1959; Hazardous Substances (Fireworks, Safety Ammunition, and Other Explosives Transfer) Regulations 2003; Toxic Substances Regulations 1983; New Zealand Statutes, Statutory Regulations and Local and Private Acts can be found on the Interim Website of New Zealand Legislation Approved Code of Practice for Demolition, 1994, Occupational Safety and Health Service of the Department of Labour; Approved Code of Practice for the Safe Erection and Use of Scaffolding, 1995, Occupational Safety and Health Service of the Department of Labour; Guidelines for the Management and Removal of Asbestos, 1999, Occupational Safety and Health Service of the Department of Labour; Approved Code of Practice for the Management of Substances Hazardous to Health (MOSHH) in the Place of Work, 1997, Occupational Safety and Health Service of the Department of Labour, contact information for the Occupational Safety and Health Service of the Department of Labour can be found on their web site BS: 6187:2000 Code of practice for demolition, contact information for British Standards Institute can be found on their web site

3 3 of 7 AS/NZS 4576:1995 Guidelines for scaffolding; NZS 4203:1992 General Structural Design and Design Loadings for Buildings; NZS 6803:1999: Acoustics - Construction Noise, contact information for Standards New Zealand can be found on their web site AS Demolition of Structures, contact information for the Standards Australia and joint AS/NZ standards can be found on the web site sp Contract documents. Approved Code of Practice for Excavation and Shafts for Foundations 1995, Occupational Health and Safety Service of the Department of Labour. Contact information for the Occupational Safety and Health Service of the Department of Labour can be found on their web site RMA Operators Manual, 1998 NZ Contractor s Federation; Truck Loading Code, 1999, Land Transport Safety Authority. Operators Safety Manual for Earthmoving Machinery 2000 Infrastructure ITO Telephone Operators must hold a class 1, 2, or 4 driver s licence appropriate for the vehicle being driven, and use the hand signals endorsed by their company. 4 In the context of this unit standard demolition work excludes underwater work, and the demolition of bridges.

4 4 of 7 Elements and Performance Criteria element 1 Demonstrate knowledge of the functions of hydraulic excavators and their attachments. 1.1 Hydraulic excavators are identified and described in terms of their types, and components. types - tracked, rubber-tyred; components - operator compartment, mountings, hydraulic pump or motor, sprocket track frame and track if applicable, shoes, stabilisers and mainframe, boom or stick attachments, bucket and bucket cylinder, arm or dipper stick, arm cylinder or crowd cylinder, boom and boom cylinder, swing cylinder. 1.2 Hydraulic excavators are described in terms of their operating functions. cutting, crushing, stripping, battering, loading, dumping, lifting. 1.3 Attachments for specified tasks are described in terms of their fitting and operation. attachments may include but are not limited to - wood shears, steel shears, cracker jaw, grapple, pulveriser, impact hammer, pusher arm, bucket; evidence is required for at least two. element 2 Prepare for demolition operations. 2.1 Job instructions are confirmed in accordance with company requirements. 2.2 Walk round is completed prior to starting work in accordance with company requirements.

5 5 of Machine operation is checked prior to starting work and after warm-up, in accordance with manufacturer s instructions. prior to starting work - visibility, seat belt, engine controls and gauges, throttle position, hydraulic controls; after warm-up - controls, gauges. 2.4 Site is checked for hazards in accordance with the Health and Safety in Employment Act 1992, and company requirements. element 3 Manoeuvre and control the excavator within the workplace. 3.1 Excavator is manoeuvred within the workplace with adequate clearances in accordance with manufacturer s and job instructions. slew and working clearances include but are not limited to - overhead wires, underground services, proximity of people and plant, trenching works, structural works, handling loads. 3.2 Machine control levers are used to produce smooth movement of attachments through all positions in accordance with manufacturer s instructions. 3.3 Excavator is controlled on slopes in accordance with manufacturer s instructions and/or company requirements. 3.4 Machine production is maintained at maximum usage relative to the task and the safety of the operator. 3.5 Sequence and work methods are selected to ensure safety of people, plant, and any road traffic. 3.6 Sequence and work methods are selected to complete job requirements in allotted time in accordance with company requirements. 3.7 When manoeuvring the excavator, road furniture, roadside amenities, structures, adjacent property, and protected trees are preserved at all times.

6 6 of 7 element 4 Use an excavator and attachments for demolition work attachments may include but are not limited to - wood shears, steel shears, cracker jaw, grapple, pulveriser, impact hammer, pusher arm, grapple; evidence is required for at least four attachments. 4.1 Attachments are attached and detached in accordance with manufacturer s instructions, and company requirements. 4.2 Excavator is used for demolition work in accordance with manufacturer s instructions, company requirements, and job instructions. 4.3 Structures and materials are demolished in a safe and timely manner with the operator aware of the operating environment at all times. includes but is not limited to - reversing, working on slope. element 5 Sort, place, and load materials. 5.1 Materials are sorted and stockpiled in accordance with job instructions. 5.2 Materials are placed with minimal spillage in accordance with job instructions. 5.3 Communication is maintained with the load vehicle driver at all times during loading operations in accordance with company requirements. 5.4 Excavator is positioned strategically and material is placed in load vehicle in accordance with company requirements, and the Truck Loading Code, 1999.

7 7 of 7 element 6 Move an excavator between sites. 6.1 Machine is driven in compliance with traffic regulations and manufacturer s instructions. 6.2 Excavator is loaded and unloaded on transporter in accordance with manufacturer s instructions, and company requirements. positioning of attachments, parking machine; permit and securing are the responsibility of the driver of the transporter not the operator of the excavator. Comments on this unit standard Please contact Infrastructure ITO askus@infratrain.co.nz if you wish to suggest changes to the content of this unit standard. Please Note Providers must be accredited by the Qualifications Authority or a delegated interinstitutional body before they can register credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be accredited by the Qualifications Authority before they can register credits from assessment against unit standards. Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards. Accreditation requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for providers wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements. This unit standard is covered by AMAP 0101 which can be accessed at