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Elements and Performance Criteria

1. Prepare to service and repair trailer up to 4.5 tonnes
   • Job requirements are determined from workplace instructions
   • Service, repair and adjustment procedures and information are sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
2. Inspect trailer to determine service and repair requirements
   • Inspection is carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Inspection results are compared with manufacturer specifications
   • Inspection findings are reported according to workplace procedures, and include recommendations for necessary repairs or adjustments
3. Carry out service and repair activities
   • Trailer service and repair requirements are determined from workplace instructions and inspection results
   • Service, repair and adjustments are carried out to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-service and repair testing is carried out according to workplace procedures
4. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and trailer is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures
5. Prepare to service and repair trailer up to 4.5 tonnes
   • Job requirements are determined from workplace instructions
   • Service, repair and adjustment procedures and information are sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
6. Inspect trailer to determine service and repair requirements
   • Inspection is carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Inspection results are compared with manufacturer specifications
   • Inspection findings are reported according to workplace procedures, and include recommendations for necessary repairs or adjustments
7. Carry out service and repair activities
   • Trailer service and repair requirements are determined from workplace instructions and inspection results
   • Service, repair and adjustments are carried out to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-service and repair testing is carried out according to workplace procedures
8. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and trailer is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures

Range Statement

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.

Inspection must include:	vehicle hitch, trailer coupling and securing chains electrical systems brake system chassis and suspension system axles and wheel hubs tyres.
Safety requirements must include:	work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: lifting and supporting trailers handling and controlling brake dust and brake fluids working with stored energy.
Environmental requirements must include:	procedures for trapping, storing and disposing of hazardous materials and substances released from braking systems, including lubricants, brake fluid, brake dust and fibres.

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Performance Evidence

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:

service, repair and adjust two different trailers with an aggregate trailer mass (ATM) up to 4.5 tonnes, in which the work must involve:

repacking wheel bearings

inspecting and adjusting brakes

inspecting and servicing suspension

coupling and securing chains

inspecting vehicle hitch, trailer coupling and securing chains

inspecting and servicing electrical system.

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Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to servicing and repairing trailers up to 4.5 tonnes, including procedures for:

lifting and supporting trailers

handling and controlling brake dust and brake fluids

working with stored energy

environmental requirements, including procedures for trapping, storing and disposing of hazardous materials and substances released from braking systems, including lubricants, brake fluid, brake dust and fibres

identification, purpose and basic operation of trailer systems, including:

braking systems, including:

hydraulic

electrical

mechanical

electrical wiring circuits

trailer service and repair procedures, including:

wheel bearings

suspension system

braking system

lighting system

vehicle hitch and trailer coupling types and securing chains

5th wheel trailer couplings

post-service and repair testing procedures for trailers, including stationary and mobile performance tests.

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