Document ID: chunk:federal_register_of_legislation:F2016L00416:reg:4:p3
Version: federal_register_of_legislation:F2016L00416
Segment Type: reg
Provision Reference: reg 4 (pt 3/21)
Character Range: 37518–40424

is displayed and any load measurement devices are operating correctly, and
    * plant is maintained in accordance with the manufacturer/supplier's instructions or relevant Australian Standards.
Further general guidance on plant can be found in the Code of Practice: Managing risks of plant in the workplace.

Lasers
Lasers must be designed, constructed and installed so that no person is exposed to accidental irradiation. Lasers that are capable of producing hazardous diffuse reflections or that may constitute a fire hazard, being laser classes 3B and 4, must not be used in construction work.
Any worker operating lasers must be trained in the use of the equipment. Further information on the safe use of lasers is available in AS 2397: Safe use of lasers in the building and construction industry.

4.3              Powered mobile plant
A wide range of powered mobile plant including earthmoving machinery, may be used for excavation work. To select plant that is suitable for the task, you should consider:
    * site access and restrictions
    * site hazards such as overhead powerlines and underground services
    * the ground conditions
    * the type and depth of excavation
    * the volume of material to be excavated and transported, and
    * where the excavated material is to be located and/or stored.
A high risk work licence is required to operate some types of powered mobile plant. However in most cases earthmoving machinery does not require a licensed operator if it is being used for the purpose for which it was originally designed. Earthmoving machinery operators must be able to demonstrate they are competent to operate the specific type of plant being used and any attachments fitted to the plant.

Traffic management arrangements must be implemented at the workplace when powered mobile plant is to be used for excavation work to prevent collision with pedestrians or other mobile plant.

Earthmoving machinery
Bulldozers and scrapers are often used to prepare a work area for further specific excavation.

Bulldozers typically excavate and move large amounts of material short distances. Bulldozers
can be equipped with hydraulically operated rippers at the back of the machine which are capable of loosening the hardest of sedimentary rocks. This material may then be bulldozed away.
This method frequently proves more economical than drilling and blasting softer rock.

Self-propelled rubber tyred scrapers enable very large quantities of material to be excavated and hauled economically over long distances at relatively high speed. Because of the large potential output and speeds of modern scrapers, careful attention should be given to job layout, haul roads, vehicle pathways and overall traffic management to achieve a healthy and safe workplace.

Temporary haul roads should be well constructed and maintained to enable plant operators
to complete the work safely.