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Elements and Performance Criteria

  1. Plan and prepare.
  2. Carry out levelling procedures using rise and fall method.
  3. Carry out levelling procedures using height of collimation method.
  4. Calculate distances using stadia lines.

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.

Job requirements must include:

job specifications for levelling operations, including:

project design and specifications, including building and site plans

quality requirements for the completed work

timeframe for completion

work site procedures specified by project manager or client

safe work method statements (SWMS) for tasks

schedule for completing work

workplace procedures incorporating requirements of relevant legislation, regulations, codes and Australian standards

workplace and work site environmental and sustainability requirements.

Health and safety requirements must include:

emergency procedures, including:

evacuation

first aid

location and use of firefighting equipment

hazard identification and risk control procedures, including for handling hazardous materials and dangerous goods

safe operating procedures for levelling, including:

manufacturer specifications

SWMS

safety data sheets (SDS)

selection, correct fitting, and use of personal protective equipment (PPE) prescribed under legislation, regulations and workplace policies and practices

selection and use of tools and equipment.

Levelling tools and equipment must include:

each of the following:

laser levels and targets

levelling staff

marking equipment

measuring tapes and rules

spirit levels and straight edges

two of the following:

automatic/optical levels

plumb bobs

water levels.

Readings must include:

change stations

negative readings.

Levelling activities must include three or more of the following:

establishing approximate distances and transfer of reduced levels

locating power, water, gas and telecommunications services

measuring and recording ground levels at respective critical set-out points

measuring and recording heights or levels for installing joinery

measuring and recording heights or levels of ceilings and floors

measuring and recording or checking levels in drainage

measuring and recording slab or pad levels for placement of steel columns or masonry piers

positioning offsets and recovery pegs for construction projects or for use in determining quantity from calculations

shooting levels for concrete slabs

shooting levels for excavation or footings

transferring levels or heights for formwork

calculating rise and fall and height from collimation.

Checking operation and tolerances must include:

two peg test for automatic level

reverse readings for spirit level.

Level readings must include:

one negative reading

datum

backsight

foresight

intermediate sight

plumb.

Heights and levels must be recorded by:

completing field book for rise and fall and height of collimation

chalk or nail mark

datum or survey peg

drawing or sketch

mark on vertical surface.

Maintenance of levelling devices must include:

authorised operator servicing and minor replacements

cleaning

monitoring, recording and reporting faults.


Performance Evidence

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. The person must also transfer levels and record differences in height, undertaking at least one open traverse and one closed traverse using both the rise and fall method and the height of collimation method, on three of the following types of levelling operations:

establishing approximate distances and transfer of reduced levels

locating power, water, gas and telecommunications services

measuring and recording ground levels at respective critical set-out points

measuring and recording heights or levels for installing joinery

measuring and recording heights or levels of ceilings and floors

measuring and recording or checking levels in drainage

measuring and recording slab or pad levels for placement of steel columns or masonry piers

positioning offsets and recovery pegs for construction projects or for use in determining quantity from calculations.

shooting levels for concrete slabs

shooting levels for excavation or footings

transferring levels or heights for formwork.

calculating rise and fall and height from collimation.

In doing the above work, the person must:

locate, interpret and apply information, including standards and specifications that apply to specific levelling tasks

comply with site safety plan, health and safety regulations, and state and territory legislation applicable to workplace operations

comply with organisational policies and procedures, including quality requirements

safely and effectively use tools and equipment

communicate and work effectively and safely with others, including using agreed communication signals

set up and test levelling equipment

confirm accuracy of the readings taken

accurately record results of each levelling procedure according to organisational requirements

calculate distances using an optical levelling instrument and levelling staff.


Knowledge Evidence

A person demonstrating competency in this unit must demonstrate knowledge of:

reasons for making measurements of line, level and plumb in construction projects

basic construction and levelling processes relevant to levelling tasks specified in the performance evidence

construction plans, symbols and construction terminology relevant to levelling procedures

contents of and terms used in job safety analyses (JSA) and safe work method statements (SWMS) for tasks

characteristics, technical capabilities and limitations of different types of levelling devices

levelling techniques commonly used in construction work

processes for interpreting engineering drawings and sketches

processes for setting out construction tasks relating to levelling operations

project quality requirements relevant to levelling work

site and equipment safety requirements relevant to levelling work

site isolation and traffic control responsibilities and authorities.