Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

AURTTM005 Mapping and Delivery Guide
Balance rotating and reciprocating engine components

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency AURTTM005 - Balance rotating and reciprocating engine components
Description
Employability Skills
Learning Outcomes and Application This unit describes the performance outcomes required to balance rotating and reciprocating engine components. It involves preparing for the task, determining and performing the balancing requirements for the engine component in an engine reconditioning process, and completing workplace processes and documentation.It applies to those working in the automotive service and repair industry. The engine components include those in vehicles from all sectors of the industry.No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the rotating and reciprocating engine components that they have balanced, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

automotive repair workplace or simulated workplace

workplace instructions

manufacturer engine specifications

material relevant to balancing rotating and reciprocating engine components

multi-cylinder crankshafts, flywheels and piston and connecting rod assemblies specified in the performance evidence and requiring balancing

precision measuring equipment, including:

dial indicators

inside and outside metric and imperial micrometers

scales in 0.1 gram graduations

linishing machine

hand, air and power tools appropriate to balancing rotating and reciprocating engine components.
Prerequisites/co-requisites
Competency Field Mechanical Miscellaneous
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Prepare to balance rotating and reciprocating engine component
  • Job requirements are determined from workplace instructions
  • Methods of balancing component are sourced and interpreted from manufacturer literature and workplace procedures
  • Tools and measuring equipment are selected and checked for serviceability
  • Hazards associated with the work are identified and risks are managed
  • Engine component is prepared for balancing operations and balancing machine is prepared to accept component according to safety requirements
       
Element: Balance rotating and reciprocating engine component
  • Component is mounted and engaged with machine according to workplace procedures and safety requirements, and following machinery safe operating procedures
  • Rotating and reciprocating engine components are balanced in line with workplace requirements and according to workplace procedures, safety requirements, and machinery safe operating procedures, and without causing damage to components or system
       
Element: Complete balancing processes
  • Final inspection is made to ensure work is to workplace requirements
  • Component is cleaned and presented ready for use or stored according to workplace procedures
  • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
  • Workplace documentation is processed according to workplace procedures
       
Element: Prepare to balance rotating and reciprocating engine component
  • Job requirements are determined from workplace instructions
  • Methods of balancing component are sourced and interpreted from manufacturer literature and workplace procedures
  • Tools and measuring equipment are selected and checked for serviceability
  • Hazards associated with the work are identified and risks are managed
  • Engine component is prepared for balancing operations and balancing machine is prepared to accept component according to safety requirements
       
Element: Balance rotating and reciprocating engine component
  • Component is mounted and engaged with machine according to workplace procedures and safety requirements, and following machinery safe operating procedures
  • Rotating and reciprocating engine components are balanced in line with workplace requirements and according to workplace procedures, safety requirements, and machinery safe operating procedures, and without causing damage to components or system
       
Element: Complete balancing processes
  • Final inspection is made to ensure work is to workplace requirements
  • Component is cleaned and presented ready for use or stored according to workplace procedures
  • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
  • Workplace documentation is processed according to workplace procedures
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Prepare to balance rotating and reciprocating engine component

1.1 Job requirements are determined from workplace instructions

1.2 Methods of balancing component are sourced and interpreted from manufacturer literature and workplace procedures

1.3 Tools and measuring equipment are selected and checked for serviceability

1.4 Hazards associated with the work are identified and risks are managed

1.5 Engine component is prepared for balancing operations and balancing machine is prepared to accept component according to safety requirements

2. Balance rotating and reciprocating engine component

2.1 Component is mounted and engaged with machine according to workplace procedures and safety requirements, and following machinery safe operating procedures

2.2 Rotating and reciprocating engine components are balanced in line with workplace requirements and according to workplace procedures, safety requirements, and machinery safe operating procedures, and without causing damage to components or system

3. Complete balancing processes

3.1 Final inspection is made to ensure work is to workplace requirements

3.2 Component is cleaned and presented ready for use or stored according to workplace procedures

3.3 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected

3.4 Workplace documentation is processed according to workplace procedures

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:

balance one four or six cylinder in-line engine crankshaft assembly, including:

front pulley

crankshaft and flywheel and pressure plate (manual transmission) or drive plate (automatic transmission)

balance one V8 engine crankshaft assembly, including:

front pulley

crankshaft and flywheel and pressure plate (manual transmission) or drive plate (automatic transmission)

balance one piston and connecting rod assembly

during the above work, perform each of the following methods of adding or removing weight from engine components:

drilling

welding

machining.

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to balancing rotating and reciprocating engine components, including operational risk assessment and treatments associated with:

electrical safety of balancing equipment and machinery

equipment and machinery movement and operation

operating principles of component balancing, including:

dynamic balance

internally and externally balanced engines

reciprocating mass

rotating mass

sources of torsional vibration

gas pressure

purpose of counterweights, torsional vibration dampeners, and balance shafts in balancing

difference between in-line engine balance, flat plane and V type engine balance, including the effect of the number and angle of cylinders

balancing procedures and techniques, including:

in-line engines, flat plane crankshafts and V type engines

protecting crank pins from damage from bob-weight clamping

protecting main bearing journals from damage from balancing machine cradle rollers or V block

weight matching the pistons and rod ends

methods of calculating bob-weight values for V type and in-line engines, including:

rotating mass with oil allowance

reciprocating mass

effect of number of cylinders and V angle on the total calculation

mounting bob-weights on crankshafts of V type engines

balancing internally balanced engines

balancing externally balanced engines

procedures for adding and removing metal to the crankshaft, including:

drilling and linishing to remove weight

welding to add weight

machining or drilling and adding heavy metal.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Prepare to balance rotating and reciprocating engine component

1.1 Job requirements are determined from workplace instructions

1.2 Methods of balancing component are sourced and interpreted from manufacturer literature and workplace procedures

1.3 Tools and measuring equipment are selected and checked for serviceability

1.4 Hazards associated with the work are identified and risks are managed

1.5 Engine component is prepared for balancing operations and balancing machine is prepared to accept component according to safety requirements

2. Balance rotating and reciprocating engine component

2.1 Component is mounted and engaged with machine according to workplace procedures and safety requirements, and following machinery safe operating procedures

2.2 Rotating and reciprocating engine components are balanced in line with workplace requirements and according to workplace procedures, safety requirements, and machinery safe operating procedures, and without causing damage to components or system

3. Complete balancing processes

3.1 Final inspection is made to ensure work is to workplace requirements

3.2 Component is cleaned and presented ready for use or stored according to workplace procedures

3.3 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected

3.4 Workplace documentation is processed according to workplace procedures

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.

Preparing must include:

procedures for chemically cleaning components without damage

checking all components to ensure no further machining is required.

Safety requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including operational risk assessment and treatments associated with:

electrical safety of balancing equipment and machinery

equipment and machinery movement and operation.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Job requirements are determined from workplace instructions 
Methods of balancing component are sourced and interpreted from manufacturer literature and workplace procedures 
Tools and measuring equipment are selected and checked for serviceability 
Hazards associated with the work are identified and risks are managed 
Engine component is prepared for balancing operations and balancing machine is prepared to accept component according to safety requirements 
Component is mounted and engaged with machine according to workplace procedures and safety requirements, and following machinery safe operating procedures 
Rotating and reciprocating engine components are balanced in line with workplace requirements and according to workplace procedures, safety requirements, and machinery safe operating procedures, and without causing damage to components or system 
Final inspection is made to ensure work is to workplace requirements 
Component is cleaned and presented ready for use or stored according to workplace procedures 
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 
Workplace documentation is processed according to workplace procedures 
Job requirements are determined from workplace instructions 
Methods of balancing component are sourced and interpreted from manufacturer literature and workplace procedures 
Tools and measuring equipment are selected and checked for serviceability 
Hazards associated with the work are identified and risks are managed 
Engine component is prepared for balancing operations and balancing machine is prepared to accept component according to safety requirements 
Component is mounted and engaged with machine according to workplace procedures and safety requirements, and following machinery safe operating procedures 
Rotating and reciprocating engine components are balanced in line with workplace requirements and according to workplace procedures, safety requirements, and machinery safe operating procedures, and without causing damage to components or system 
Final inspection is made to ensure work is to workplace requirements 
Component is cleaned and presented ready for use or stored according to workplace procedures 
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 
Workplace documentation is processed according to workplace procedures 

Forms

Assessment Cover Sheet

AURTTM005 - Balance rotating and reciprocating engine components
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

AURTTM005 - Balance rotating and reciprocating engine components

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: