Assessment Requirements for MSMWJ304 Operate a high pressure water jetting system

Release: 1

Assessment Requirements for MSMWJ304 Operate a high pressure water jetting system

Modification History

Release 1. Supersedes and is not equivalent to MSMWJ301 Operate a high pressure water jetting system. Unit code changed. Application amended. MSMWJ202 added as a pre-requisite. Elements and Performance Criteria changed. Range of Conditions removed. Assessment Requirements changed which also includes 120 hours added to performance evidence.

Performance Evidence

There must be evidence the candidate has completed the tasks outlined in the elements and performance criteria of this unit, and demonstrated the ability to:

perform the activities for a period of 120 hours under supervision

autonomously assemble and operate equipment that meets the requirements of a Class B system as defined by AS 4233.1 High pressure water jetting systems – Part 1: Safe operation and maintenance, to complete:

at least one gun operation AND

at least one of the following:

pipe cleaning (not stormwater/sewerage system)

heat exchanger/tube cleaning

surface preparation

vessel (interior) cleaning using a cleaning head.

Knowledge Evidence

There must be evidence the candidate has knowledge of:

existence and purpose of AS 4233.1 High pressure water jetting systems – Part 1: Safe operation and maintenance and Safe Work Australia Guide for Managing Risks from High Pressure Water Jetting

system controls required by AS 4233.1 High pressure water jetting systems – Part 1: Safe operation and maintenance and Safe Work Australia Guide for Managing Risks from High Pressure Water Jetting

hazards and hazard controls specific to the operation of water jetting equipment, including:

physical hazards

stored energy hazards

working environment hazards

environmental protection considerations for water jetting operations

principles of operation of water jetting equipment and its component items

types and application of water jetting equipment and its component items, including:

pump

motive power

hoses

guns, foot control devices, lances and nozzles

equipment variables, including:

hose type, size and restraints

nozzle type

pressure and flow required

additives to be used

units of measurement used in drawings and their practical application for equipment selection

graphics and symbols used on drawings

correct methods of starting up, shutting down, operating and controlling water jetting equipment and its component items by type and application

communication systems used between operators, including hand signals

operational parameters and limits of equipment

types and causes of known problems for water jetting and its components and corrective action appropriate to the problem cause

importance of monitoring and controlling job conditions

methods for monitoring job variables, and the appropriate corrective actions

types of situations that require:

activation of an emergency stop

stopping work until a situation is resolved

procedures for:

raising the alarm (when, how, who to)

responding to injury

routine cleaning and servicing requirements for water jetting equipment

types of waste generated and procedures for safe disposal.

Assessment Conditions

Skills must have been demonstrated in the workplace or in a simulated environment that reflects workplace conditions and contingencies.

The following conditions must be met for this unit:

use of suitable facilities, equipment and resources, including:

high pressure water jetting system and other tools and materials to complete tasks specified in the performance evidence

safety and personal protective equipment (PPE)

job documentation.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=d1287d36-dff4-4e9f-ad2c-9d6270054027