Assessment Requirements for AURTTA013 Diagnose and repair hydraulic systems

Release: 1

Assessment Requirements for AURTTA013 Diagnose and repair hydraulic systems

Modification History

Release	Comment
Release 1	New unit of competency.

Performance Evidence

Before competency can be determined, individuals must demonstrate they can perform the following according to the standard defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

diagnose and repair a fault in two different hydraulic systems, in which the work must involve removing and refitting or replacing three of the following:

hydraulic cylinder

hydraulic pump

hydraulic motor

hydraulic valves

hydraulic hose.

Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing hydraulic systems, including procedures for:

using raising, lowering and supporting equipment

working with fluids under pressure

working with stored pressure hazards

working with hot fluid hazards

isolating and stabilising machines or vehicles

environmental requirements, including procedures for trapping, storing and disposing of fluid released from hydraulic systems

operating principles of hydraulic systems and associated components, including:

transmission of energy by hydraulic fluid

mechanical advantage

hydraulic circuits, including open and closed centred systems

temperature, force, pressure, area and flow

application, purpose and operation of hydraulic systems and components, including:

reservoirs

accumulators

pumps, including gear and piston

valves, including directional, pressure and flow

hand and remote cordless controls

linear and rotary actuators

hoses, pipes fittings and couplings

heat exchangers

hydraulic fluids

hydraulic symbols and system schematic

requirements of AS 1101.1 Graphic symbols for general engineering, Part 1: Hydraulic and pneumatic systems

diagnostic testing procedures for hydraulic systems, including:

applying and using a flow meter to diagnose faults by carrying out an in-line, bypass or ‘Tee’ test to evaluate system components

visually inspecting hoses, pipes and connectors

oil sampling and contamination control

repair procedures for hydraulic systems, including procedures for removing, repairing, replacing and adjusting hydraulic system components

post-repair testing procedures for hydraulic systems, including procedures for testing:

operational functionality

fluid pressures and levels.

Assessment Conditions

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the hydraulic systems that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

automotive repair workplace or simulated workplace

workplace instructions

manufacturer hydraulic system specifications

two hydraulic systems with faults in the components specified in the performance evidence

diagnostic tools and equipment for hydraulic systems, including pressure gauges or flow meters

AS 1101.1 Graphic symbols for general engineering, Part 1: Hydraulic and pneumatic systems

tools, equipment and materials appropriate for repairing and adjusting hydraulic systems.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1