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Elements and Performance Criteria

1. Prepare to inspect and service hydrostatic transmission
   • Job requirements are determined from workplace instructions
   • Servicing information is sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
2. Inspect hydrostatic transmission
   • Inspection is carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Inspection results are compared with manufacturer specifications
   • Inspection findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments
3. Service hydrostatic transmission
   • Service and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-service testing is carried out according to workplace procedures
4. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and machinery is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures
5. Prepare to inspect and service hydrostatic transmission
   • Job requirements are determined from workplace instructions
   • Servicing information is sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
6. Inspect hydrostatic transmission
   • Inspection is carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Inspection results are compared with manufacturer specifications
   • Inspection findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments
7. Service hydrostatic transmission
   • Service and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-service testing is carried out according to workplace procedures
8. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and machinery is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures

Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Safety and environmental requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: working with high oil pressures working with stored hydraulic accumulator pressures isolating and stabilising machinery environmental requirements, including procedures for trapping, storing and disposing of oil released from hydrostatic transmissions.

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Performance Evidence

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

inspect and service the hydrostatic transmissions of two different machinery.

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Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to inspecting and servicing hydrostatic transmissions, including procedures for:

working with high oil pressures

working with stored hydraulic accumulator pressures

isolating and stabilising machinery

environmental requirements, including procedures for trapping, storing and disposing of oil released from hydrostatic transmissions

identification, function and basic operation of hydrostatic transmission and components, including:

charge pump

main pump

drive motor

filters

hydraulic lines

heat exchanger

reservoir

control valve

types and applications of hydraulic oil

inspection procedures for hydrostatic transmissions, including:

hydraulic oil sampling

oil leaks

pressure checks as required

service and adjustment procedures for hydrostatic transmissions, including

adjusting or replenishing oil level as required

replacing filters as required

post-service testing procedures for hydrostatic transmissions.

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