Modification History
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Release |
TP Version |
Comments |
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2 |
DEF12 V2 |
Layout adjusted. No changes to content. |
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1 |
DEF12 V1 |
Primary release. |
Unit Descriptor
This unit covers the competency required to move submerged objects using air-lift devices (i.e. bags).
The unit includes selecting and inspecting the bags appropriate to the lift, securing the bags to the object and inflating the bags to the required buoyancy in order to manoeuvre the object under control. Attention must be given to safety of other divers and nearby vessels and/or structures during work, as well as consideration for the environment.
Note: This Unit of Competency relates, in part, to the existing standards of the Australian Diver Accreditation Scheme (ADAS). All information was correct at the time of development of this Unit of Competency; however, any diver seeking ADAS accreditation should consult ADAS and not rely on the information contained in this unit.
Application of the Unit
As agreed in the creation of this Training Package, applications for units transferred from the PUA00 Public Safety Training Package will be developed as part of continuous improvement plans, and taking into account the change in Unit of Competency format as detailed in templates for Streamlined Training Packages.
Licensing/Regulatory Information
Not applicable.
Pre-Requisites
DEFDV001B Dive using self contained underwater breathing apparatus in open water to 30 metres.
DEFDV016B Perform underwater rigging work.
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
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Elements describe the essential outcomes of a Unit of Competency. |
Performance Criteria describe the required performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the Range Statement. Assessment of performance is to be consistent with the Evidence Guide. |
Elements and Performance Criteria
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ELEMENT |
PERFORMANCE CRITERIA |
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1. Prepare for underwater air-lift operation |
1.1 Load metrics and worksite data are determined and analysed to determine the specific requirements for the air-lift bags. 1.2 Work plan is developed consistent with the dive plan. 1.3 Air-lift bags are selected , inspected and prepared. 1.4 Air-lift bags are secured safely to/from the dive site. 1.5 Access obstructions and other hazards are assessed and action is taken to remove /reduce the risk. |
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2. Operate air-lift devices |
2.1 Air-lift bags are secured to the object's lift point/s. 2.2 A work-safe area is established and the location and safety of divers is confirmed prior to commencing the lift. 2.3 Air-lift bags are inflated and adjusted to control buoyancy. 2.4 Movement of the object is effectively controlled. |
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3. Conclude air-lift operations |
3.1 Environmental impact arising from the work task is minimised and waste products are recovered . 3.2 Air-lift bags are de-rigged from the object. 3.3 Air-lift bags are de -serviced and stored for re-use. |
Required Skills and Knowledge
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This describes the essential skills and knowledge and their level, required for this unit. |
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Required Skills |
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Required Knowledge |
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Evidence Guide
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
Assessment must confirm the ability to attend to personal and collective safety; and to consider the environmental impact as part of the dive plan. Consistency in performance Competency should be demonstrated during the following air-lift operations with manually inflated air-bags:
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Context of and specific resources for assessment |
Context of assessment Competency should be assessed in the ocean. When practicable, assessment should relate to the diver’s vocational focus. Specific resources for assessment Access to a complete range of diving, safety and accessory equipment; air-lift equipment; and submerged objects. |
Range Statement
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The Range Statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording in the Performance Criteria is detailed below. |
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Load metrics may include: |
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Worksite data may include: |
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Selecting, inspecting and preparing air-lift bags may include: |
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Action to remove/reduce the risk may include: |
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Effectively controlling the object's movement may include: |
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Environmental impact may include: |
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De-servicing may include: |
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Unit Sector(s)
Not applicable.
