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Evidence Guide: MEM27007 - Diagnose and rectify low voltage starting systems

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

 

MEM27007 - Diagnose and rectify low voltage starting systems

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

Determine job requirements

  1. Follow standard operating procedures (SOPs)
Follow standard operating procedures (SOPs)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with work health and safety (WHS) requirements at all times

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use appropriate personal protective equipment (PPE) in accordance with SOPs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify job requirements from specifications, drawings, job sheets or work instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess starting motor operation

  1. Apply principles of magnetism, induced voltage and electromagnetism and electric motor principles to assess starter motor operation
Apply principles of magnetism, induced voltage and electromagnetism and electric motor principles to assess starter motor operation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Interpret starting motor component functions and multi-pole/winding/shunt wiring arrangements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test the performance of the cranking motor drive mechanism

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine starter locked armature current, voltage and torque

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test and rectify starting motors

  1. Dismantle and assemble starting motors according to manufacturer recommendations
Dismantle and assemble starting motors according to manufacturer recommendations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform testing to determine shorts to ground, turn shorts and winding continuity

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test solenoid, relays and over-temperature devices

Completed
Date:

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Test starter engagement mechanism and adjust where possible, i.e. pinion clearance

Completed
Date:

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Ensure starting system is free of excessive voltage drops

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Connect starting and charging cables to circuit connections tighten and insulate

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge
Range Statement

This field allows for different 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.

Axial and coaxial type starters with drive arrangementsinclude one (1) or more of the following:

Dyer

Positork

Sprag clutch

overrunning clutch

inertia drive