NTISthis.com

Evidence Guide: MEM18052B - Maintain fluid power systems for mobile plant

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM18052B - Maintain fluid power systems for mobile plant

What evidence can you provide to prove your understanding of each of the following citeria?

Secure system from potentially hazardous situations

  1. Sources of stored energy are identified.
  2. Mobile plant is assessed for potentially hazardous situations and conditions.
  3. Accumulators and position actuators are bled down to remove stored energy as per manufacturers' instructions.
Sources of stored energy are identified.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mobile plant is assessed for potentially hazardous situations and conditions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Accumulators and position actuators are bled down to remove stored energy as per manufacturers' instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check hydraulic system components

  1. System components are identified correctly, using appropriate circuit diagrams or manufacturers' instruction.
  2. Faults are traced and localised with reference to manufacturer troubleshooting procedures and flow charts.
  3. The operational function of components is inspected and tested in accordance with standard operating procedures.
System components are identified correctly, using appropriate circuit diagrams or manufacturers' instruction.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Faults are traced and localised with reference to manufacturer troubleshooting procedures and flow charts.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The operational function of components is inspected and tested in accordance with standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Replace faulty system components

  1. Faulty components are correctly removed from system using appropriate tools, techniques and procedures.
  2. Replacement components are sourced where appropriate from manufacturer/supplier.
  3. Hoses, tubes and pipework are prepared and assembled using appropriate tools, techniques and procedures.
  4. Replacement components and conductors are correctly assembled and refitted to system.
  5. System is tested and adjusted for correct operation according to standard operating procedures.
Faulty components are correctly removed from system using appropriate tools, techniques and procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Replacement components are sourced where appropriate from manufacturer/supplier.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Hoses, tubes and pipework are prepared and assembled using appropriate tools, techniques and procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Replacement components and conductors are correctly assembled and refitted to system.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System is tested and adjusted for correct operation according to standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dismantle, inspect and rectify linear actuators

  1. Hydraulic cylinders and rams are dismantled using appropriate tools, techniques and procedures.
  2. Component parts are evaluated for condition.
  3. Seals and bearings are fitted as per manufacturer specifications.
  4. Cylinders/rams are reassembled and fitted as per manufacturer instructions.
  5. Assembly is tested by use of machine circuit or equivalent.
Hydraulic cylinders and rams are dismantled using appropriate tools, techniques and procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Component parts are evaluated for condition.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Seals and bearings are fitted as per manufacturer specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Cylinders/rams are reassembled and fitted as per manufacturer instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assembly is tested by use of machine circuit or equivalent.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Service hydraulic systems

  1. Hydraulic systems are serviced according to manufacturers' schedules and instructions.
Hydraulic systems are serviced according to manufacturers' schedules and instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

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

A person who demonstrates competency in this unit must be able to maintain fluid power systems for mobile plant. 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. Where assessment occurs off the job, i.e. the candidate is not in productive work, 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 fluid power systems for mobile plant, 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

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

reading, interpreting and following information on written job instructions, specifications, standard operating procedures, charts, lists, drawings and other applicable reference documents

planning and sequencing operations

checking task-related information

checking for conformance to specification

identifying sources of stored energy on mobile plant

identifying hazardous situations/conditions and applying appropriate safety measures

bleeding accumulators down and positioning actuators correctly

tracing faulty components and localising using fluid power principles, procedures and safety requirements

using equipment for testing hydraulic system component

inspecting and testing components including hoses, pipes, actuators, pumps, valves, cylinders and rams according to procedure and using fluid power

removing components from system

identifying replacement pipes and hoses using catalogues or electronic media

obtaining replacement parts using appropriate procedures

selecting appropriate conductors and fittings from manufacturer catalogues and charts

cutting conductors to length using appropriate tooling/machine

assembling conductors using correct techniques

replacing component parts correctly in system using appropriate tools and techniques

testing and adjusting replacement components for correct operation and conformance to specifications

conducting conductor assemblies using machine circuits

dismantling linear actuators without damage, using correct tools, techniques/procedures and safety measures

locating and using specifications to identify performance/condition of cylinders and rams

identifying wear and damage to cylinders and rams

fitting seals and bearings

reassembling cylinder/ram in correct sequence as per manufacturer instruction

refitting assembly correctly to machine

testing refitted assemblies and verifying repairs on machine circuit and/or test rig

carrying out general service procedures correctly

undertaking calculations and numerical operations within the scope of this unit

recording/reporting service activities

Required knowledge

Look for evidence that confirms knowledge of:

different sources of stored energy and their applications

hazards and control measures associated with maintenance and rectification of fluid power systems, including housekeeping

the reasons for bleeding accumulators and actuators and the hazards associated with working on pressurised systems

the full range of hydraulic system components in a mobile plant application

information on circuit diagram or manufacturer instructions

the characteristics and operational function of each system component

methods and techniques for tracing and localising faults

the procedures and equipment for inspecting and testing hydraulic system components

problems relating to faulty hydraulic system components/operation

the specifications of each hydraulic system component

the reasons for hydraulic components not operating in accordance with specifications

all safety procedures and precautions

common faults in hydraulic components

removal methods for various components

information in catalogues or electronic media

procedures to obtain replacement parts

typical conductor types and fittings their applications

methods for cutting/assembling hoses/tubes/pipework

tools and techniques for fitting replacement components and conductors

the correct operation of hydraulic components and conductors

the procedures for checking and adjusting the system

the tools, techniques and procedures used for dismantling

safety measures for dismantling linear actuators

the methods of inspection and measurement

guides and specifications for reusable parts

the correct procedures for fitting bearings and seals

the sequence and procedure for reassembly of cylinder/ram

assembly and fitting instructions

the procedures for refitting rams

the procedures for testing and verifying repairs using machine circuits and/or test rigs

necessary remedial action

manufacturer scheduled service timeframes and service items

service procedures

safe work practices and 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.

Check

Pressure and flow testing, cycle times, basic interrogation of diagnostic system and basic electronic servicing

Components

Hoses, pipes, actuators, pumps, valves, cylinders and rams

Service of hydraulic systems

Change out of hydraulic components such as pumps, valves and actuators and the associated remedial actions required such as system flushing and purging and setting of component parameters

Rectify

May include the assembly and fitting of hydraulic hoses, tubing and pipework. Resealing and repairs to cylinders and rams.