This unit involves the skills and knowledge required to diagnose and rectify faults in a lift system.

It includes diagnosing and rectifying faults in complex lift system and equipment, and completing reporting and rectification activities.

The skills and knowledge described in this unit require a licence or permit to practice in the workplace where work is carried out on electrical installations which are designed to operate at voltages greater than 50 volt (V) alternating current (a.c.) or 120 V direct current (d.c.).

Competency development activities in this unit are subject to regulations directly related to licensing. Where a licence or permit to practice is not held, a relevant contract of training, such as an Australian Apprenticeship, may be required.

Additional and/or other conditions may apply in some jurisdictions subject to regulations related to electrical work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to diagnose a lift system fault

1.1

WHS/OHS workplace procedures for a given work area are identified and applied

1.2

Scope of work to be undertaken is determined from maintenance procedures, fault/breakdown reports and/or discussions with appropriate person/s

1.3

Advice is sought from the work supervisor to ensure the work is coordinated effectively with relevant others

1.4

Tools, equipment and testing devices needed to carry out the work are obtained in accordance with workplace procedures and checked for correct operation and safety

2

Diagnose and rectify lift system faults

2.1

WHS/OHS risk control measures and workplace procedures for carrying out work activities are followed

2.2

Circuits/machines/plant are isolated in accordance with relevant industry standards and workplace procedures

2.3

Safety hazards resulting from the fault and/or breakdown are documented and risk control measures implemented in consultation with appropriate person/s

2.4

Diagnostics are applied to apparatus, equipment and systems to identify fault/s

2.5

Suspected fault scenarios are tested as cause/s of system fault

2.6

Cause of the fault is identified and appropriate person/s engaged to rectify the fault

2.7

Faults in the lift components of the system are rectified in accordance with apparatus and system industry operational standards

2.8

Apparatus, equipment and system/s are verified and tested to meet required industry standards

2.9

Unplanned situations are responded to in accordance with workplace procedures in a manner that minimises risk to personnel and equipment

2.10

Diagnosis and rectification activities are carried out efficiently without waste of materials or damage to apparatus, the environment or services using sustainable energy practices

3

Complete work and report fault diagnosis and rectification activities

3.1

Reusable, faulty or worn components are tagged and despatched for repair in accordance with workplace procedures

3.2

Rectification of faults is documented in accordance with workplace procedures

3.3

Rectification of faults is reported and appropriate person/s notified in accordance with workplace procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

releasing passengers from a lift which has become immobilised

diagnosing and repairing faults in lift circuits and associated components for at least three types of lift circuits/components, including:

governors

brakes

safety gear

safety devices

lift machines

door components

controllers

replacing and/or adjusting lift equipment in at least three types of lift equipment as described below:

electro-hydraulic lift

electric traction lift

passenger lift

goods lift

dealing with unplanned events

applying relevant industry standards

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures

diagnosing and rectifying faults, including:

inspecting, testing and measuring live electrical work

obtaining and checking tools, equipment, resources and testing devices

using diagnostic methods

following workplace procedures and instructions

reporting fault diagnosis and rectification activities, including:

completing documentation.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

lift components and systems - electrical/electronic, including:

traction lifts encompassing:

lift control circuits (relay logic only): floor selector circuitry

machine room control (selector) and well control (transducer) circuitry - direction slowing and stopping, re-levelling, door operator, acceleration, button, indicator/lantern, lights and emergency lights, travelling cables, key switch circuits, fans, main supply and power circuits

safety circuits encompassing:

type, operation and actuation

landing door locks, car door locks, emergency stop, pit switch, car trap-door switch, fire service, car top switch, tappet switch, governor switch, and safety gear switch, reverse phase relay, phrase failure relay and limit switches

maintenance, replacement and adjustment encompassing:

electrical and electronic lift components - travelling cables, tachometers, selectors, encoders and transducers

safety devices: overloads, circuit breakers, limit switches, terminal stopping, door protection, governors and safety gear/switches

electrical layout/drawings and special requirements encompassing:

lift code and AS/NZS 3000 Electrical installations (known as the Australian/New Zealand Wiring Rules) requirements

specific lift symbols

conduits

trailing cable

troughing

colour coding and labelling

segregation low voltage (LV)/extra-low voltage (ELV)

telephone and communication cabling

regulatory requirements and door lock wiring

safety drive adjustment encompassing:

emergency stop button

speed governor

reverse phase protection

broken chain/step switch

broken main drive switch

drive access switch

start pressure switch and landing guards/barriers

lift components – electronic encompassing:

encoders

transducers

electronic boards

selectors

rectifiers

capacitors

resistors

processor board

input/output (I/O) board

drives - types, construction and operation encompassing:

traction

gearless types:

speed/load characteristics, efficiency, application, brakes and electric prime mover (motor types and control)

geared types:

speed/load characteristics, efficiency, application, brakes and electric prime mover (motor types and control)

other types of lifts (drum, rack and pinion, chain and screw)

fault finding encompassing:

visual inspection

performance checks and application of fault-finding principles

relevant diagnostic methods

relevant fault scenarios

relevant industry standards

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications and operating instructions for tools and equipment

relevant rectification activities and procedures

relevant tools, equipment and testing devices

relevant WHS/OHS legislated requirements

relevant workplace documentation, including fault reports, test results, authorisations, permits, parts/components, despatch and store records

relevant workplace policies, procedures and instructions.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in suitable workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated suitable workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or simulations

relevant and appropriate materials, tools, facilities, equipment and personal protective equipment (PPE) currently used in industry

applicable documentation, including workplace procedures, equipment specifications, regulations, relevant industry standards, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Electrotechnology

Electrical