Unit of competency Outline
Date retreived
22/07/2026 3:42 PM AWST
22/07/2026 3:42 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Overhaul transmissions (hydrostatic)
Overhaul transmissions (hydrostatic)
Unit of competency
National Code
AURTTX4010
AURTTX4010
State Code
WF455
WF455
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
08/07/2013
Field of Education
030503 - Vehicle Mechanics
Original Release Date
08/07/2013
Nominal Hours
40
Description
This unit covers the competence required to completely dismantle and rebuild a hydrostatic transmission.Licensing, legislative, regulatory or certification requirements may apply to this unit in some jurisdictions. Users are advised to check with the relevant regulatory authority.
Notes
Elements and Performance Criteria
1. Prepare to overhaul hydrostatic transmission
- 1.1. Nature and scope of the work requirements are identified and confirmed
- 1.2. WHS requirements, including individual State/Territory regulatory requirements and personal protection needs are observed throughout the work
- 1.3. Procedures and information such as workshop manuals, specifications and tooling, are sourced
- 1.4. Method options are analysed and those most appropriate to the circumstances are selected and prepared
- 1.5. Technical and/or calibration requirements for testing and overhaul are sourced and support equipment is identified and prepared
2. Test hydrostatic transmission and analyse results
- 2.1. Methods for the conduct of the system tests are implemented in accordance with workplace procedures and manufacturer/component supplier specifications
- 2.2. Results are compared with manufacturer/component supplier specifications to indicate compliance or non-compliance
- 2.3. Results are documented with evidence and supporting information and recommendation(s) made
- 2.4. Report is processed in accordance with workplace procedures
3. Overhaul hydrostatic transmission
- 3.1. Information is accessed and interpreted from manufacturer/component supplier specifications
- 3.2. Hydrostatic transmissions are overhauled using approved methods and equipment, according to specifications and tolerances relative to the component/vehicle/plant manufacturer/component supplier
- 3.3. Hydrostatic transmission is overhauled without causing damage to any component or system
- 3.4. Appropriate workplace documentation is completed and dealt with to overhaul outcomes
- 3.5. Overhauling activities are carried out according to industry regulations/guidelines, WHS legislation, legislation and enterprise procedures/policies
4. Prepare transmission for installation/storage
- 4.1. Overhaul documentation is completed
- 4.2. Final inspection is made to ensure protective guards and safety features are in place
- 4.3. Final inspection is made to ensure work is to workplace expectations
- 4.4. Transmission is prepared for installation/storage to workplace expectations
- 4.5. Job card is processed in accordance with workplace procedures
RANGE STATEMENT
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.
Methods
Methods include:
visual, aural and functional assessment (including excessive wear, corrosion, selection and damage)
system testing under operating conditions
Specific requirements
Specific requirements:
variable displacement and fixed displacement hydraulic pumps
variable displacement and fixed displacement hydraulic motors
Variables
Other variables may include:
radial piston, axial piston, vane, rotor and gear type pumps and motors
closed and replenishing systems
Overhaul methods and sequences
Overhaul methods and sequences are to include the complete dismantling of component parts, measuring and evaluation of wear, the replacement, repair, rebuilding or reconditioning of parts comparable to original parts, the assembly of parts, performance of functional testing and the completion of records
WHS
WHS requirements are to be in accordance with legislation/regulations/codes of practice and enterprise safety policies and procedures. This may include protective clothing and equipment, use of tooling and equipment, workplace environment and safety, handling of materials, use of fire fighting equipment, enterprise first aid, hazard control and hazardous materials and substances
Personal protective equipment
Personal protective equipment is to include that prescribed under legislation/regulations/codes of practice and workplace policies and practices
Safe operating procedures
Safe operating procedures are to include, but are not limited to the conduct of operational risk assessment and treatments associated with vehicular movement, toxic substances, electrical safety, machinery movement and operation, manual and mechanical lifting and shifting, working in proximity to others and site visitors
Emergency procedures
Emergency procedures related to this unit are to include, but are not limited to emergency shutdown and stopping of equipment, extinguishing fires, enterprise first aid requirements and site evacuation
Environmental requirements
Environmental requirements are to include but are not limited to waste management, noise, dust and clean-up management
Quality requirements
Quality requirements are to include, but are not limited to regulations, including Australian Standards, internal company quality policy and standards and enterprise operations and procedures
Statutory/regulatory authorities
Statutory/regulatory authorities may include Federal, State/Territory and local authorities administering acts, regulations and codes of practice
Tooling and equipment
Tooling and equipment may include hand tooling, power tooling, hydraulic pressure gauges, hydraulic test bench, hydraulic flow meters and precision measuring equipment
Materials
Materials may include hydraulic fluids, spare parts and cleaning materials
Communications
Communications are to include, but are not limited to verbal and visual instructions and fault reporting and may include site specific instructions, written instructions, plans or instructions related to job/task, telephones and pagers
Information/documents
Sources of information/documents may include:
verbal or written and graphical instructions, signage, work schedules/plans/specifications, work bulletins, memos, material safety data sheets, diagrams or sketches
safe work procedures related to overhauling of hydrostatic transmissions
regulatory/legislative requirements pertaining to the automotive industry, including Australian Design Rules
engineer's design specifications and instructions
organisation work specifications and requirements
instructions issued by authorised enterprise or external persons
Australian Standards
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.
Methods
Methods include:
visual, aural and functional assessment (including excessive wear, corrosion, selection and damage)
system testing under operating conditions
Specific requirements
Specific requirements:
variable displacement and fixed displacement hydraulic pumps
variable displacement and fixed displacement hydraulic motors
Variables
Other variables may include:
radial piston, axial piston, vane, rotor and gear type pumps and motors
closed and replenishing systems
Overhaul methods and sequences
Overhaul methods and sequences are to include the complete dismantling of component parts, measuring and evaluation of wear, the replacement, repair, rebuilding or reconditioning of parts comparable to original parts, the assembly of parts, performance of functional testing and the completion of records
WHS
WHS requirements are to be in accordance with legislation/regulations/codes of practice and enterprise safety policies and procedures. This may include protective clothing and equipment, use of tooling and equipment, workplace environment and safety, handling of materials, use of fire fighting equipment, enterprise first aid, hazard control and hazardous materials and substances
Personal protective equipment
Personal protective equipment is to include that prescribed under legislation/regulations/codes of practice and workplace policies and practices
Safe operating procedures
Safe operating procedures are to include, but are not limited to the conduct of operational risk assessment and treatments associated with vehicular movement, toxic substances, electrical safety, machinery movement and operation, manual and mechanical lifting and shifting, working in proximity to others and site visitors
Emergency procedures
Emergency procedures related to this unit are to include, but are not limited to emergency shutdown and stopping of equipment, extinguishing fires, enterprise first aid requirements and site evacuation
Environmental requirements
Environmental requirements are to include but are not limited to waste management, noise, dust and clean-up management
Quality requirements
Quality requirements are to include, but are not limited to regulations, including Australian Standards, internal company quality policy and standards and enterprise operations and procedures
Statutory/regulatory authorities
Statutory/regulatory authorities may include Federal, State/Territory and local authorities administering acts, regulations and codes of practice
Tooling and equipment
Tooling and equipment may include hand tooling, power tooling, hydraulic pressure gauges, hydraulic test bench, hydraulic flow meters and precision measuring equipment
Materials
Materials may include hydraulic fluids, spare parts and cleaning materials
Communications
Communications are to include, but are not limited to verbal and visual instructions and fault reporting and may include site specific instructions, written instructions, plans or instructions related to job/task, telephones and pagers
Information/documents
Sources of information/documents may include:
verbal or written and graphical instructions, signage, work schedules/plans/specifications, work bulletins, memos, material safety data sheets, diagrams or sketches
safe work procedures related to overhauling of hydrostatic transmissions
regulatory/legislative requirements pertaining to the automotive industry, including Australian Design Rules
engineer's design specifications and instructions
organisation work specifications and requirements
instructions issued by authorised enterprise or external persons
Australian Standards
EVIDENCE GUIDE
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
Critical aspects for assessment and evidence required to demonstrate competency in this unit
It is essential that competence in this unit signifies ability to transfer competence to changing circumstances and to respond to unusual circumstances in the critical aspects of:
observing safety procedures and requirements
communicating effectively with others involved in or affected by the work
selecting methods and techniques appropriate to the circumstances
completing preparatory activity in a systematic manner
identification of the application, purpose and operation
application of the full overhaul sequence as per the Range Statement relative to the qualification being sought
interpreting the test results
conducting the overhaul in accordance with workplace and manufacturer/component supplier requirements
completing overhaul of the transmission and associated components within workplace timeframes
presentation of transmission to customer/storage in compliance with work requirements
Context of, and specific resources for assessment
Application of competence is to be assessed in the workplace or simulated worksite
Assessment is to occur using standard and authorised work practices, safety requirements and environmental constraints
Assessment is to comply with regulatory requirements, including Australian Standards
The following resources should be made available:
workplace location or simulated workplace
materials relevant to overhauling hydrostatic transmissions
equipment, hand and power tooling appropriate to overhauling hydrostatic transmissions
activities covering the mandatory task requirements
specifications and work instructions
Method of assessment
Assessment must satisfy the endorsed assessment guidelines of the automotive industry's RS&R Training Package
Assessment methods must confirm consistency and accuracy of performance together with application of underpinning knowledge
Assessment must be by direct observation of tasks, with questioning on underpinning knowledge and it must also reinforce the integration of key competencies
Assessment may be applied under project related conditions (real or simulated) and require evidence of process
Assessment must confirm a reasonable inference that competence is able not only to be satisfied under the particular circumstance, but is able to be transferred to other circumstances
It is preferable assessment reflects a process rather than an event and occurs over a period of time to cover the varying quality circumstances. Evidence of performance may be provided by customers, team leaders/members or other appropriate persons subject to agreed authentication arrangements
Competence in this unit may be assessed in conjunction with other functional units which together form part of the holistic work role
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
Critical aspects for assessment and evidence required to demonstrate competency in this unit
It is essential that competence in this unit signifies ability to transfer competence to changing circumstances and to respond to unusual circumstances in the critical aspects of:
observing safety procedures and requirements
communicating effectively with others involved in or affected by the work
selecting methods and techniques appropriate to the circumstances
completing preparatory activity in a systematic manner
identification of the application, purpose and operation
application of the full overhaul sequence as per the Range Statement relative to the qualification being sought
interpreting the test results
conducting the overhaul in accordance with workplace and manufacturer/component supplier requirements
completing overhaul of the transmission and associated components within workplace timeframes
presentation of transmission to customer/storage in compliance with work requirements
Context of, and specific resources for assessment
Application of competence is to be assessed in the workplace or simulated worksite
Assessment is to occur using standard and authorised work practices, safety requirements and environmental constraints
Assessment is to comply with regulatory requirements, including Australian Standards
The following resources should be made available:
workplace location or simulated workplace
materials relevant to overhauling hydrostatic transmissions
equipment, hand and power tooling appropriate to overhauling hydrostatic transmissions
activities covering the mandatory task requirements
specifications and work instructions
Method of assessment
Assessment must satisfy the endorsed assessment guidelines of the automotive industry's RS&R Training Package
Assessment methods must confirm consistency and accuracy of performance together with application of underpinning knowledge
Assessment must be by direct observation of tasks, with questioning on underpinning knowledge and it must also reinforce the integration of key competencies
Assessment may be applied under project related conditions (real or simulated) and require evidence of process
Assessment must confirm a reasonable inference that competence is able not only to be satisfied under the particular circumstance, but is able to be transferred to other circumstances
It is preferable assessment reflects a process rather than an event and occurs over a period of time to cover the varying quality circumstances. Evidence of performance may be provided by customers, team leaders/members or other appropriate persons subject to agreed authentication arrangements
Competence in this unit may be assessed in conjunction with other functional units which together form part of the holistic work role
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| W5095 | AURT408145A | Overhaul transmissions (hydrostatic) | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| AXA16 | AURTTX010 | Overhaul hydrostatic transmissions | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J421 | AUR40812 | Certificate IV in Automotive Mechanical Overhauling | Qualification |