Unit of competency Outline

Date retreived
23/07/2026 1:04 AM AWST

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Carry out crankshaft grinding

Carry out crankshaft grinding

Unit of competency
National Code
AURTTM007
State Code
AXA47
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
14/04/2016
View on TGA
State Implementation and Classification
Approved Date
13/07/2016
Field of Education
030503 - Vehicle Mechanics
Original Release Date
13/07/2016
Nominal Hours
60
Description
This unit describes the performance outcomes required to carry out grinding operations on engine crankshafts to specific under sizes. It involves preparing for the task, determining crankshaft damage and required repair action, preparing and using grinding machines to grind crankshafts to specifications, tolerances and workplace requirements, and completing workplace processes and documentation.It applies to those working in the automotive service and repair industry. The crankshafts 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.
Notes
Elements and Performance Criteria
1. Prepare to grind crankshaft
  • 1.1 Job requirements are determined from workplace instructions
  • 1.2 Crankshaft is cleaned and inspected and condition reported
  • 1.3 Information is sourced, procedures and methods are analysed, and appropriate crankshaft grinding machine and equipment are selected for the crankshaft
  • 1.4 Hazards associated with the work are identified and risks are managed
  • 1.5 Tools and measuring equipment are selected and checked for serviceability
  • 1.6 Crankshaft grinding wheel is prepared according to machine manufacturer specifications and tolerances, and workplace procedures
  • 1.7 Crankshaft is measured to determine under size and tolerances, including journal diameters and sizes of grind
  • 1.8 Crankshaft is positioned in grinder in correct direction of rotation, and clamped according to manufacturer specifications and workplace procedures
2. Grind crankshaft big end bearing journals
  • 2.1 Chuck offsets are set according to the stroke of crankshaft
  • 2.2 Crankshaft grinder wheel head position is set according to machine manufacturer procedures
  • 2.3 Constant measuring gauge and steady rest are positioned on big end journal taking into account position of oil hole
  • 2.4 Crankshaft is ground at correct rotational speed for crankshaft material and diameter according to safety requirements, and following machinery safe operating procedures
  • 2.5 Crankshaft is measured to ensure compliance with specifications and tolerances
  • 2.6 Grinding operations are completed to required specifications and tolerances according to safety requirements, and following machinery safe operating procedures
3. Grind crankshaft main bearing journals
  • 3.1 Crankshaft is removed from grinder
  • 3.2 Chucks are centralised for main bearings and counterweights are adjusted
  • 3.3 Crankshaft is refitted to grinder in correct direction of rotation, and is clamped according to manufacturer specifications and workplace procedures
  • 3.4 Datum is set in relation to crankshaft rear flange and nose
  • 3.5 Crankshaft grinder wheel head movement is set according to manufacturer procedures
  • 3.6 Constant measuring gauge and steady rest are positioned on main bearing journal taking into account position of oil hole
  • 3.7 Crankshaft is ground at correct rotational speed for crankshaft material and diameter according to safety requirements, and following machinery safe operating procedures
  • 3.8 Crankshaft is inspected to ensure compliance with specifications and tolerances
  • 3.9 Grinding operations are completed to required specifications and tolerances according to safety requirements, and following machinery safe operating procedures
4. Finish crankshaft grinding
  • 4.1 Oil holes are chamfered and dressed
  • 4.2 Journals are linished with correct grade of belt and in right direction of rotation and required finish
  • 4.3 Flange ends and seal areas are faced
  • 4.4 Crankshaft is examined and measured according to manufacturer specifications and tolerances, and workplace procedures
  • 4.5 Crankshaft is cleaned according to workplace procedures
  • 4.6 Bright surfaces are treated with rust prevention solution and crankshaft is prepared for further process or storage according to workplace procedures
5. Complete work processes
  • 5.1 Final inspection is made to ensure finished work complies with workplace requirements and crankshaft is presented ready for use or storage
  • 5.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
  • 5.3 Tools and equipment are checked and stored according to workplace procedures
  • 5.4 Workplace documentation is processed according to workplace procedures
No information
No information
Replaces
State Code National Code Title Type
WC291 AURTTM3007 Carry out grinding operations Unit of competency