Range of Variables The Range of Variables explains the contexts within which the performance and knowledge requirements of this standard may be assessed. The scope of variables chosen in training and assessment requirements may depend on the work situations available |
What pre-season maintenance might be carried out? | Pre-season maintenance may include weed control, motor servicing, flushing and supply distribution, descaling and equipment service. |
What post-season maintenance might be carried out? | Post-season maintenance may include disconnecting electrics, motor servicing, reports of equipment and machinery damage, flushing and draining, protection from environmental damage, and servicing equipment. |
What enterprise standards might be relevant to flushing and cleaning the system? | These might include environmental considerations such as the identification of the impacts of pumping water from any ground or underground source and appropriate remedial action, and procedures for dealing with cleaning agents and waste water. |
What safe working practices apply to dismantling and storage of equipment? | These may include safe procedures for manual handling, and the operation of machinery and equipment. |
What types of pressurised irrigation systems might be relevant to this standard? | Irrigation systems may range from manual operation and monitoring to fully automated with computer control and monitoring. They may include micro-irrigation systems and spray irrigation systems. Micro-irrigation systems may be mains pressure, low pressure, below or above ground, sprays systems, drip emitter trickle, t-tape, mini-sprinklers, and capillary. Spray irrigation systems may be travelling irrigators (soft hose, hard hose boom type) centre pivot, linear move, powered side roll hand shift permanent (installed), and bike shift/easy shift. |
What might servicing of mechanical equipment include? | Periodical maintenance for pumping unit may include changing engine oil, replacing the oil filter, replacing the air cleaner, checking battery water level, pre-cleaner, gear box oil, cooling system/water, fuel, battery charge and fuel tank, greasing the pump jack shaft and bearings, and flushing (de-silting) the pump. Centre control tower maintenance may include greasing head of pivot and all gearboxes, checking tyre pressure, and cleaning electrical controls of authorised components. There may be environmental considerations relating to the servicing of mechanical equipment such as disposal of oils/grease and used parts. |
What are the OHS procedures relevant to this standard? | These might include prevention of electrical injury, protection against cleansing agents including acids, and safe systems and procedures for protection against risks of slips and falls. |
What materials may be used for system maintenance? | Materials may include gland packing, rubber rings, belts and pulleys, hazardous substances, or chemicals. |
What parts/replaceable system components might be inspected or replaced? | These may include pipes, jets, microjets, laterals, sprinklers, emitters, integrated dripline "thin wall", seals and outlets. |
What outlets might be removed and cleaned or replaced? | Outlets may include drip lines, cups and fluming, pipes, risers, valves, sprinklers and emitters. |
For more information on contexts, environment and variables for training and assessment, refer to the Sector Booklet. |
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