OVERVIEW
The course consists of three (3) compulsory core areas of knowledge and skills in:
- Safety
- Tools and equipment
- Mechanical and automotive operations.
These core areas of knowledge and skills are applied to five (5) compulsory content areas:
- Mechanical and automotive components and systems
- Principles of operation
- Servicing and repairs
- Fault finding, problem solving and analysis
- Social, economic and environmental impacts.
AND also ONE (1) compulsory Project. Practical work is an integral part of the course as a whole.
DIAGRAMMATICAL OVERVIEW OF COURSE STRUCTURE
DETAILS OF COURSE CONTENT
CORE KNOWLEDGE AND SKILLS (SUGGESTED 40% OF DELIVERY TIME)
Through studying an overview of systems in automotive and mechanical equipment, learners develop an understanding of essential mechanical and automotive principles. They develop skills to check and maintain the safe operation of automotive vehicles or mechanical engines, select appropriate tools and equipment and apply safe workshop practices.
A. Safety
A safety induction must be completed prior to any other content.
Identification of hazards:
- rotating equipment
- electrical/electronics
- environmental
- chemical including using materials, safety data sheets
- pressure (liquids, air and gases)
- fire, e.g. fuel, solvent, electrical
- physical, e.g. manual handling, noise, dust, stored energy.
Application:
- hierarchy of control (elimination, substitution, isolation, engineering controls and administrative means, personal protective equipment)
- tool selection
- processes and procedures
- storage
- risk management
- energy sources
- fire control
- environment
- dust
- fumes
- waste
- noise
- movement
- barriers
- manual handling techniques
- duty of care to self and others
- tagging and isolation procedures.
B. Tools and equipment
Identify and safely maintain, use and store the following tools and equipment including:
- measuring/marking-out tools, e.g. verniers, multi-meters, code reader, feeler and pressure gauges
- holding devices, e.g. bench vices, G-clamps
- hand tools, e.g. sockets, hacksaws, spanners
- diagnostic equipment e.g. pressure gauges, multi-meters, computerised diagnostic equipment
- power/air tools, e.g. electric drills, air duster guns, impact wrenches, air ratchets
- workshop equipment, e.g. floor jacks, safety stands, hoists and lifting equipment, oxy-acetylene equipment.
Undertake workshop housekeeping including:
- guards and attachments
- storage
- clean-up
- environment management.
C. Mechanical and automotive operations
Mechanical principles including:
- transfer of motion
- cranks and cams
- levers (first, second and third)
- linkages (bell cranks)
- pulley systems
- sprockets and chain.
Petrol engine types and configurations and operations:
- single cylinder engines – 2 stroke
- single cylinder engines – 4 stroke
- multi-cylinder engines.
Overview of automotive and mechanical systems:
- engine mechanics – relationship between cranks, cams and valves
- ignition – battery and magneto
- fuel – carburettor and electronic fuel injection
- cooling – liquid and air
- braking – identifying parts of drum and disc
- transmission driveline – drive shaft, chain and sprockets, belt, gears, clutch
- lubrication – oils and additives
- electrical.
CONTENT AREAS (SUGGESTED 40% OF DELIVERY TIME)
In the first four content areas, learners develop an understanding of how mechanical systems and subsystems in an engine work independently and how they interact to perform their specific purpose. Through practical activities relating to maintenance and repair, learners explore how automotive and mechanical components, parts, equipment, and systems function, operate and interact. They develop skills in identifying faults, problem solving and mechanical analysis using an engineering design process.
Learners develop an understanding of the social, economic and environmental impact of mechanical and automotive technologies.
Area 1: Mechanical and automotive components and systems
Essential mechanical systems
Each of the essential mechanical systems must be covered.
Learners identify interactions between the each of the essential mechanical systems.
Engine Types
Learners need to have worked on three (3) different types of engines by the completion of the course including:
- single cylinder engines – 2 stroke
- single cylinder engines – 4 stroke
- multi-cylinder engines.
Identify engine types and related components:
- dismantle and reassemble components
- use basic fault-finding techniques and perform routine maintenance.
Ignition systems
Identify the components of an ignition system and conduct basic routine maintenance:
- battery
- ignition switching components (e.g. distributor, crank angle sensors)
- ignition coil
- spark plugs.
Fuel systems
Identify features and the principles of fuel systems and carry out basic repairs:
- carburettor system
- fuel injection system.
Cooling systems
Outline the function of a basic cooling system and components, conduct basic routine maintenance and use basic fault-finding techniques:
- operation of the cooling system
- air and liquid
- components
- radiator
- water pump
- water jackets
- radiator hoses
- thermostat
- fan
- coolant.
Transmission systems
Identify features of a transmission:
- purpose of transmission
- types of transmission
- clutches
- chain and sprocket
- belt and pulley
- gears.
Electrical systems
Identify the components of an electrical system, construct a simple circuit, conduct basic routine maintenance and use fault-finding techniques and tools:
- electrical circuit diagrams
- electrical symbols
- construction of a circuit
- engine electrical
- overview of systems for lighting.
Engine management systems
Identify components in:
- fuel management
- air management
- ignition management
- identification of sensors and actuators.
Optional systems
The following systems may be covered depending on the Project topics selected by learners.
Braking systems
Identify and discuss the principles of braking systems and conduct visual inspection and propose basic maintenance:
Intake and exhaust systems
Identify the features of intake and exhaust systems and carry out basic repairs:
- types of air cleaners
- components of an exhaust system.
Drive line systems
Identify the features of drive systems:
- front-wheel drive
- rear-wheel drive.
Suspension systems
Identify and discuss the features of vehicle suspension systems and conduct visual inspection:
- leaf springs
- coil springs
- shock absorbers
- linkages, bushes.
Steering systems
Identify the components of a steering system and conduct visual inspection components of a steering system.
Area 2: Principles of operation
Underpinning scientific, mathematical and mechanical principles in the operation of vehicles, plant and equipment.
Petrol engine types, configurations and operations
- single cylinder engines – 2 stroke
- single cylinder engines – 4 stroke
- multi-cylinder engines.
Mathematical information
- measurement
- units
- metric units
- measuring tools
- multi-meter (e.g. voltage, resistance and amps)
- scan tools (e.g. oscilloscope, code reader)
- pressure measurement (e.g. radiator, compression, fuel)
- volume
- ratios
- data
- interpretation, e.g. graphs, charts, reading of diagnostic tool measurements
- comparison
- pressure – taking readings and making judgements
- tolerances – making adjustments and determining level of wear.
Scientific principles
In addition to those listed in the Core Knowledge and Skills:
- reciprocating and rotary motion
- forces – torque, tensile, compression
- transmission of electrical and mechanical power
- energy conversion, e.g. chemical to mechanical, mechanical to heat, heat into mechanical energy
- motion
- friction and lubrication
- pressure, atmospheric, hydraulic and pneumatic.
Area 3: Servicing and repairs
Skills and processes
Learners develop mechanical and automotive servicing and repair skills and processes involved in:
- the service, maintenance and repair operations of engine and systems to undertake maintenance, service and testing
- applying safe work practices and workshop management as introduced in the core
- using tools and computer-assisted technology to diagnose faults, repair equipment and source databases
- use specific methodologies and performance tests to identify faults and undertake repair and maintenance procedures.
Observation and diagnostic equipment
Learners use observation and diagnostic equipment to:
- analyse mechanical condition of engines
- determine the serviceability of components
- measure the performance of systems
- complete maintenance schedules
- determine repair procedures.
Fault finding tests
Undertake common fault finding tests including:
- mechanical compression tests
- scan tool and code reading
- fuel and pressure testing
- electrical testing
- multimeter.
Area 4: Fault finding, problem solving and analysis
Using Core Knowledge and Skills and other content areas, learners conduct investigations or diagnostic tests to solve mechanical problems. Learners use the Engineering Design Process to support their problem solving.
The Engineering Design Process includes the following stages in which learners:
- identify a problem or need
- research solutions
- propose solution(s)
- implement solution
- test solutions
- analyse results.
The process, as illustrated on the following page in Figure 1, represents the stages used when problem-solving in mechanical and automotive workshops, as well as in managing and developing a project. The process is iterative in that learners need to continuously re-evaluate their progress and make necessary modifications after having revisited an earlier stage or activity. Through a process of evaluation at each stage, learners solve problems through a series of cognitive and physical activities.
Figure 1: Engineering Design Process
Source: Department of Education (2015)
Area 5: Social, economic and environmental impacts
Learners describe the impacts of automotive and mechanical equipment.
Links may be made with one or more relevant contexts such as agriculture, maritime, motorsports, four wheel drive vehicles, personal mobility vehicles, cycling, motorcycles or heavy transport systems.
Social impacts
- social role of mechanical systems:
- personal mobility
- freedom of movement – elderly or pre-licence users
- recreation, fitness and sports competition – e.g. sporting clubs, bike trails
- importance of consumer safety regulations for design:
- minimum safety standards
- seat belts
- child restraints
- airbags
- roll bars and safety cages.
Economic impacts
- role of mechanical and automotive industries in supporting a broad range of sectors
- career pathways:
- relevant skills, knowledge and attributes required for work in sectors
- consumer and employer expectations of workers
- cost of repairs, accidents and compliance with safety requirements.
Environmental impacts
- recycling/reusing components and waste disposal
- emissions and energy consumption including use of alternative fuels and hybrid technologies
- personal transportation (e.g. cycles, scooters) and impact on traffic systems, user health, wellbeing and safety
- disposal of cars and other mechanical equipment.
PROJECT (SUGGESTED 20% OF DELIVERY TIME)
The Project will apply the skills and knowledge covered in the core and content areas of the course which repairs, develops or enhances a mechanical or automotive system.
The project comprises three parts:
- Project Proposal (written)
- Project (practical task)
- Project Journal (written).
It is recommended that learners personalise their choice of project by selecting a task which:
- links with individual context, vocational and/or personal interests
- provides services for a community based project, and/or
- forms the basis of an entry into a competition or exhibition.
The project may be a single major project or it can comprise several smaller projects. It may be completed by small collaborative teams.
Project Proposal
The Project Proposal must be written and completed prior to project work beginning.
It must contain the following sections:
- an outline of how the course content will be used
- overview of the initial steps in an engineering design process to identify:
- a problem or need including consideration of factors influencing the design, planning, production and use of a system, such as:
- function
- user needs and requirements
- appropriate materials and components
- safety
- minimisation of waste and energy use
- research sources e.g. forums, technical manuals and bulletins
- testing processes
- a timeline and estimated costing
- outline of roles if working as a team.
All projects must be approved by the provider prior to commencement.
Project
Learners will use the Engineering Design Process to undertake the practical work on automotive or mechanical system(s) as outlined in the project proposal.
Possible projects include, but are not limited to:
- reconditioning of a single or multicylinder motor
- service and adjustment of an automotive sub-system
- installing aftermarket components in automotive systems e.g. reversing cameras, audio systems
- 10,000 km service with supporting paper work of parts and labour costs
- service and adjustment of a bicycle or components
- reconditioning of an item of powered outdoor equipment
- servicing and adjustment of a piece of outdoor powered equipment
- production of special tools or devices to test and check automotive systems
- production of tools for alignment or removal of powered equipment components or systems
- production of service tools for the repair and adjustment of bicycles
- dismantling and re-assembling of automotive body components
- design and construction of entries to competitions such as the Human Powered Vehicle, Solar Car Challenge or similar competitions.
Project Journal
The Project Journal must reflect the steps in the engineering design process undertaken including:
- research
- design of system, repairs or servicing plan
- adjustments, modifications or repairs of system to ensure optimal performance including:
- calculations relating to function and performance
- findings of diagnostic testing
- final testing
- evaluation.
The journal will contain relevant graphical (diagrams, photos and/or flow charts) and written content as well as a daily log to support explanations.