Modification History
Release 2: ISC upgrade to incorporate changes to Australian Standard.
Unit Descriptor
This unit of competency covers the use of high pressure water jetting equipment under the supervision of a competent operator. The job may be to clean, prepare, abrade, cut or demolish concrete, steel or other plant, equipment, vessels or infrastructure. This work is undertaken in compliance with AS/NZS 4233.1: 2013 High Pressure Water Jetting Systems Part 1. Safe Operation and Maintenance, or its authorised replacement and Safe Work Australia Guide for Managing Risks from High Pressure Water Jetting December 2013, its state equivalent (where one exists) or the authorised replacement.
Application of the Unit
In a typical scenario, two or more operators (at least one of whom will be a competent operator) working as a team will operate a high pressure water jetting system. AS/NZS 4233.1:2013 defines this work as work with:
(a) High pressure water jetting systems pressurised by positive displacement pumps with an output capability greater than 800 bar litres per minute.
(b) High pressure water jetting operations carried out at pressures above 800 bar litres per minute and includes jetting operations involving the use of additives and abrasives.
(c) Water jetting operations below 800 bar litres per minute where there is a foreseeable risk of injury to operators.
It further defines:
High pressure water jetting systems with an output capability greater than 800 bar litres per minute and less than 5600 bar litres per minute are identified as Class A and systems with an output capability in excess of 5600 bar litres per minute are identified as Class B.
The competent operator is defined by MSAPMWJ301A Operate a high pressure water jetting system.
Competence may also be required in a range of other units of competency in order to be allowed to operate on site under supervision. Work will be undertaken on a worksite which may be a client's site or a site belonging to the organisation.
AS/NZS 4233.1:2013 states that ' Verification of competency or refresher training on high pressure water jetting operations shall be carried out and documented at appropriate intervals not exceeding two years to ensure the continued competency of operators'.
Licensing/Regulatory Information
Not applicable.
Pre-Requisites
Not applicable
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
1 |
Prepare for work |
1.1 |
Obtain required job details as part of a team |
1.2 |
Complete site access and work control requirements |
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1.3 |
Identify site hazards and required hazard controls |
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1.4 |
Prepare required equipment under supervision |
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1.5 |
Participate in toolbox meeting or similar, as required |
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1.6 |
Complete required pre-work paperwork |
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2 |
Complete on-site preparation |
2.1 |
Arrive at site ready for job |
2.2 |
Liaise with job owner, as appropriate |
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2.3 |
Obtain required permits/work authorities, as directed |
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2.4 |
Follow job pack as directed |
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2.5 |
Check available water |
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2.6 |
Check waste disposal |
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2.7 |
Recognise and control job and site-specific hazards |
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3 |
Set up job under supervision |
3.1 |
Prepare worksite |
3.2 |
Set up water jetting equipment |
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3.3 |
Liaise with other work groups, as appropriate |
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3.4 |
Establish appropriate means of communication between operators |
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3.5 |
Ensure hazard controls are operational and adequate |
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3.6 |
Check and use required personal protective equipment |
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3.7 |
Test emergency shut-off |
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4 |
Undertake water jetting job in accordance with procedures |
4.1 |
Start up high pressure water jetting system |
4.2 |
Communicate as appropriate |
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4.3 |
Operate equipment to proceed with job, as specified |
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4.4 |
Monitor job conditions |
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4.5 |
Monitor job and equipment, as directed |
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4.6 |
Maintain required line of sight |
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4.7 |
Monitor hazards and activate emergency stop, as required |
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4.8 |
Recognise faults and take appropriate action |
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4.9 |
Complete required paperwork |
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5 |
Complete job |
5.1 |
Shut down equipment |
5.2 |
Clean job site and equipment |
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5.3 |
Service and inspect equipment under supervision, as required |
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5.4 |
Store equipment, as required |
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5.5 |
Restock running spares and consumables, as directed |
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5.6 |
Report any issues or incidents, as required |
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5.7 |
Participate in debrief |
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5.8 |
Complete required paperwork |
Required Skills and Knowledge
This section describes the skills and knowledge required for this unit. |
Required skills |
Required skills include:
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Required knowledge |
Required knowledge includes:
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Evidence Guide
The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
It is essential that use of equipment is understood and that the importance of critical properties, settings and readings is known. Competence must be demonstrated in the operation of equipment to the level required for this unit of competency. Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective actions. Holistic assessment of this unit of competency with other related units is preferred. Consistent performance should be demonstrated. In particular look to see that:
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Context of and specific resources for assessment |
Assessment will require access to operating equipment over an extended period of time, or a suitable method of gathering evidence of operating ability over a range of situations. Assessment will occur over a range of situations which will include disruptions to normal, smooth operations. Simulation or case studies/scenarios may be required to allow for timely assessment of parts of this unit of competency. Simulation should be based on the actual plant and will include 'walk-throughs' of the relevant competency components. A bank of scenarios/case studies/what ifs and questions will be required to probe the reasoning behind observable actions. |
Guidance information for assessment |
Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed. |
Range Statement
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, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
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Procedures |
All operations are performed in accordance with standard procedures. Procedures may be written, verbal, computer-based or in some other form, and may include:
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Site access requirements |
Site access requirements may include:
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Work control requirements |
Work control requirements may include:
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Prepare equipment |
Preparation of required equipment may include:
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Equipment |
Equipment may include:
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Job owner |
Job owner may include:
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Job paperwork |
Job paperwork may be electronic, hard copy or other format and may include:
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Personal protective equipment |
Personal protective equipment may include:
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Liaise with job owner |
Liaise with job owner may include:
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Job pack |
Job pack may include:
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Water |
Water is to be checked for appropriate:
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Waste disposal |
Waste disposal checks ensure that waste generated will be disposed of in an environmentally appropriate manner and in accordance with site requirements. Waste may include:
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Worksite preparation |
Worksite preparation may include:
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Prepare water jetting equipment |
Preparing water jetting equipment may include:
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Communication |
Communication may include:
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Hazards |
Hazards may include:
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Hazard controls |
Hazard controls may include:
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Job conditions |
Job conditions may include:
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Monitor job and equipment |
Monitoring job and equipment includes monitoring as directed:
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Appropriate action |
Appropriate action includes:
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Solutions |
Solutions may include:
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Health , safety and environment (HSE ) |
All operations to which this unit applies are subject to stringent HSE requirements, which may be imposed through federal or state/territory legislation, and these must not be compromised at any time. Where there is an apparent conflict between Performance Criteria and HSE requirements, the HSE requirements take precedence |
Unit Sector(s)
Surface finishing
Competency field
Not applicable
Co-requisite units
Not applicable