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Elements and Performance Criteria

  1. Prepare for maintenance
  2. Assess saw condition
  3. Level, tension and back-gauge saw blade
  4. Repair teeth and blade cracks

Performance Evidence

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. If a specific volume or frequency is not stated below, then evidence must be provided that the following requirements have been performed on at least one occasion:

follow organisational policies and procedures relvant to maintaining wide band saw blades

Maintain wide band and gang saw blades in line with the work order and within prescribed organisational requirements, including:

Remove and replace saws from equipment

Assess saw condition in line with standard operating procedures

Use welding processes and materials to produce:

weld beads which provides full penetration fusing together adjacent metal parts

welds free from any faults that would have the potential to weaken the strength and endurance capability of the weld deposit and weld zone.


Knowledge Evidence

A person competent in this unit must be able to demonstrate knowledge of:

purpose, features and operation of heavy duty wide band and gang saws for which repairs are completed

features and names of different parts of wide band saw blades

purpose, features and operation of tools and equipment used to repair and maintain wide band saw blades:

hammers

stretcher or tension rolls

levelling rolls

tension gauges and straight edges

welding equipment and welding materials

importance of levelling blades, setting tension, applying curvature and setting teeth to match requirements for:

characteristics of various materials sawn

speed of the sawing process

direction of the sawing process

cutting angle for sawing

saw blade specifications

methods for:

removing saw blades from heavy duty wide band and gang saws

assessing saw blade condition

hammering, levelling and tensioning blades to specified requirements

applying curvature

welding to build up and replace teeth

grinding and filing teeth to required shape, tolerance and pitch

characteristics of metal used in wide band saw blades and range of force which can be applied without damaging blades

organisational policies and procedures specific to maintaining wide band saw blades:

workplace health and safety with particular emphasis on equipment lock out and use of personal protective equipment

communication reporting lines

recording and reporting processing and equipment faults

environmental protection practices for repairing and maintaining tools and equipment in forest products factory settings:

reducing water and energy use

cleaning plant, tools and equipment

disposing of, recycling and reusing materials