Hydraulic system components are identified, inspected and assessed using fluid power principles to predetermined specifications interpreted from data sheets and circuits diagrams.

Work is undertaken using predetermined standards of safety, quality and work procedures. Repairs and replacements are undertaken to site or manufacturers' specifications. Correct operational function of equipment components is confirmed and commissioned in conformance to specifications, using standard operating procedures.

For straightforward removals/replacement of components from a hydraulic system, Unit MEM18055B (Dismantle replace and assemble engineering components) or Unit MEM18071B (Connect/disconnect fluid conveying system components) should be regarded as sufficient.

Band: A

Unit Weight: 4

Path 1

MEM09002B

Interpret technical drawing

MEM12023A

Perform engineering measurements

MEM18001C

Use hand tools

MEM18002B

Use power tools/hand held operations

MEM18003C

Use tools for precision work

MEM18006C

Repair and fit engineering components

MEM18055B

Dismantle, replace and assemble engineering components

ELEMENT

PERFORMANCE CRITERIA

1. Check hydraulic system components

1.1. System components are identified correctly.

1.2. The characteristics and operational function of each system component are understood.

1.3. The operational function of each component is inspected and tested.

1.4. Correct operation of each component is assessed against specifications.

2. Identify and repair or replace faulty hydraulic system components

2.1. Faulty system components are localised and malfunction is confirmed by inspection and testing using fluid power principles, procedures and safety requirements.

2.2. Faulty system components are dismantled and rectified to manufacturers'/site specifications.

2.3. Replacement parts are selected from manufacturers' catalogues according to required specifications.

2.4. System components are reassembled and tested for correct operation and assessment against specifications.

2.5. Correct operation of the hydraulic system is confirmed to designated operating procedure.

2.6. Appropriate follow-up procedures are adopted according to standard operating procedures.

2.7. Where appropriate, service reports are completed using standard operating procedures.

Required skills

Look for evidence that confirms skills in:

inspecting a range of hydraulic system components in accordance with standard operating procedures

reading, interpreting and following relevant data sheets, specifications, hydraulic circuits, drawings, instructions and manuals

checking the individual components within the hydraulic system for correct operation

dismantling and rectifying faulty system components to manufacturers'/site specifications in accordance with standard operating procedures

where appropriate, selecting replacement parts from the manufacturers'/suppliers' catalogues

reassembling and testing the hydraulic system components

checking the operation of the hydraulic system for conformance to specification

checking repaired/replaced hydraulic system components for correct operation

completing service reports where appropriate

Required knowledge

Look for evidence that confirms knowledge of:

the full range of hydraulic system components

characteristics and operational function of each hydraulic system component

procedures for inspecting and testing hydraulic system components

equipment required to test hydraulic system components

specifications of each hydraulic system component

hydraulic components not operating in accordance with specifications

reasons for hydraulic components not operating in accordance with specification

individual components within the hydraulic system

safety procedures to be followed when working on hydraulic components

where appropriate, faulty system components

procedure for repairing hydraulic system components

parts to be replaced

reasons for replacing the parts identified

the correct operation of the hydraulic system

procedures for checking hydraulic system operation

where appropriate, the follow-up procedures with respect to repaired/replaced hydraulic system components

reporting/recording procedures

reasons for completing service reports for hydraulic system components repaired/replaced

hazards associated with maintaining hydraulic system components, including housekeeping

safe work practices and procedures

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

A person who demonstrates competency in this unit must be able to maintain hydraulic system components. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with maintaining hydraulic system components or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment

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.

Hydraulic system components

Hydraulic system components may include static and dynamic seals, linear and semi-rotary actuators, fixed displacement and variable displacement pumps, pressure control valves, directional control valves, flow control valves, hydraulic motors, reservoirs, contamination control components (filtration), fluid conductors/fittings and other associated equipment.

Unit sector

Maintenance and diagnostics

This unit contains employability skills.