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MEM27024 Current

Application

This unit of competency defines the skills and knowledge required to assess converter/transmission operation, and repair or replace faulty components.

It applies to hydrostatic systems used in mobile plant applications, including steering, transmissions and other closed circuit systems. It provides additional specialist skills and knowledge in hydrostatics and is designed to complement the MEM units relevant to the particular equipment systems.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

What You'll Learn

1. Determine job requirements

  • 1.1 Follow standard operating procedures (SOPs)
  • 1.2 Comply with work health and safety (WHS) requirements at all times
  • 1.3 Use appropriate personal protective equipment (PPE) in accordance with SOPs
  • 1.4 Identify job requirements from specifications, drawings, job sheets or work instructions

2. Identify and assess the function and operation of hydrostatic system components

  • 2.1 Identify motor and pump configurations used on equipment
  • 2.2 Identify pump types and control methods
  • 2.3 Check pump prime mover and alignment
  • 2.4 Identify charge pumps and assess operation against specifications
  • 2.5 Identify control valves and functions, including special control features
  • 2.6 Identify load sensors, other sensors, control modules, fieldbus circuits and other electrical or electronic components
  • 2.7 Locate and check filters, hydraulic lines, heat exchangers and reservoirs
  • 2.8 Test system operation and integrity according to manufacturer specifications

3. Repair/replace faulty components

  • 3.1 Interpret test results and determine components requiring repairs or replacement
  • 3.2 Determine component wear and clearances using appropriate test equipment and manufacturer recommendations
  • 3.3 Select replacement components using manufacturer’s data
  • 3.4 Remove and refit components to hydrostatic system using appropriate tools, equipment and techniques
  • 3.5 Test performance of hydrostatic system against specification
  • 3.6 Record all test and rectification activities

Assessment Requirements

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria on at least two (2) occasions using different types of mobile plant hydrostatic systems and include:

following work instructions, standard operating procedures (SOPs) and safe work practices

identifying and interpreting specifications, charts, lists, drawings, design rules and other applicable reference documents to mobile plant hydrostatic systems

performing diagnostic testing procedures for hydrostatic transmissions, including:

flow and pressure testing

measuring case drains

internal and external fluid leaks

abnormal noises and operation

scan tools and/or multimeter testing

undertaking calculation and numerical operations associated with diagnosing and rectifying closed circuit fluid power systems

checking hydrostatic system components for wear and clearance

removing, refitting, adjusting and aligning hydrostatic system components

selecting and using appropriate test equipment to test components for compliance to specifications

interpreting fault codes and data from test equipment and control modules

identifying faulty components visually and by using and adapting appropriate testing equipment and identifying components for reuse or replacement

removing and refitting components to hydrostatic assembly and selecting replacement parts using manufacturer catalogues and data

adjusting components using appropriate tools, techniques and equipment

recording/reporting all service/work activities in accordance with SOPs.

Knowledge Evidence

Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:

safe work practices and procedures and use of personal protective equipment (PPE)

different pump and motor configurations and their advantages and disadvantages in mobile applications, including:

close coupled (motor and pump back to back units)

split units (separate motor and pump) single and double

multiple pump/motor layouts

method of operation and assembly/disassembly procedures for axial, bent axis and radial pumps

pump control methods, including:

mechanical

mechanical servo

pilot pressure

electronic servo

pressure/limitation and displacement control

operating principles of charge pumps, including construction, circuitry, case flushing and cooling and heating functions

functions and types of control valves used in hydrostatic/closed circuit systems

flow amplifiers and functions

effect of engine speed and performance on hydrostatic system

methods for checking hydrostatic system components for wear and clearance

procedures used to remove, refit, adjust and align hydrostatic system components

recording requirements for test and rectification activities

appropriate action to correct the faulty components

test equipment to be used in checking/testing mobile plant hydrostatic systems for correct operation and reasons for selection

tools, techniques and equipment used in maintaining and repair hydrostatic system assemblies.

Assessment Conditions

Assessors must:

have vocational competency in diagnosing and rectifying mobile plant hydrostatic systems at least to the level being assessed with relevant industry knowledge and experience

satisfy the assessor requirements in the Standards for Registered Training Organisations 2015 or its replacement and comply with the National Vocational Education and Training Regulator Act 2011, its replacement or equivalent legislation covering VET regulation in a non-referring state/territory as the case requires

Where possible assessment must occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills

Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Foundation Skills

  • text: This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency. Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Prerequisite Units

Parent Qualifications

Related Units

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Last updated from training.gov.au: 25 February 2026