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Elements and Performance Criteria

1. Install a moving sprinkler irrigation system
   • Select required materials, tools, equipment and machinery
   • Join span pipes with correctly tensioned bolts
   • Connect V-jack trusses in sequence to bow the span
   • Connect goose necks and hose connectors
   • Fit pre-cut drop hoses and connect sprinklers
2. Complete assembly of moving sprinkler components
   • Assemble sprinklers, pressure regulators and hose directors
   • Fit gear box and control panel
   • Fit and tension wheels
3. Assist in commissioning a moving sprinkler irrigation system
   • Connect and start pumping system and flush as required
   • Calibrate testing and monitoring equipment to manufacturer specifications
4. Operate the system
   • Prime pumps, open or close valves and controls and begin the start-up sequence
   • Check emitter spacing
   • Monitor and service the transport mechanism
   • Check the irrigation controller for programming and efficiency
   • Correct or repair all malfunctions, leaks and blockages
5. Monitor the irrigation operation
   • Implement the irrigation schedule and monitor soil profile for wetting
   • Measure sprinkler performance using catch cans
   • Measure flow rates using containers of known volume
   • Measure operating pressures using pressure gauges
   • Check the irrigated area for wheel ruts and other signs of waterlogging
6. Carry out system maintenance
   • Record damage and blockages with contaminants by damage type, location and the section of the system affected
   • Record and report damaged or faulty pumps, valves, sprinklers, electrical components and computer control systems and take action to effect repairs
   • Measure outlet pressure, flow rate and energy use and record on a regular basis
   • Inspect and maintain drive mechanism, frames and trusses
   • Implement end of season maintenance procedures
   • Implement routine and preventative maintenance procedures
   • Implement storage procedures for irrigation components
7. Shut down the system in response to irrigation indicators
   • Apply water for sufficient time to achieve required soil moisture levels and allowing for weather conditions
   • Shut down system components and drain
   • Check drainage and treatment systems
   • Record and report irrigation activities

Range Statement

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Performance Evidence

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence that they can:

change engine oil and filter

check all bolts for correct torques

check for malfunctioning sprinklers

check injection pump and safety equipment operation

complete regular and end of season maintenance tasks

fit control panel and wheels

grease drive shafts on pump and motor

inspect lift base and arms for any stress marks or cracks

measure and interpret flow rates and pressures

monitor system effectiveness

operate pressure and flow testing equipment

read and follow operations manuals and irrigation schedules

shut down, clean equipment and dispose of waste

start-up system and carry out operational checks

take and record measurements of output and efficiency

tension span pipes with V-jack trusses

use control systems

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Knowledge Evidence

The candidate must demonstrate knowledge of:

principles and practices of moving irrigation system installation, operation and maintenance

behaviour of water on varying terrain and soil types

calculations used when installing irrigation systems

common operational and maintenance problems

components of a moving sprinkler irrigation system and their maintenance requirements

installing a moving sprinkler irrigation

irrigation methods for moving sprinkler systems

maintenance requirements for moving sprinkler systems

monitoring soil compaction and drainage

moving sprinkler irrigation maintenance

pump used in moving sprinkler irrigation systems and their operation

shutdown sequence

soil water retention testing techniques

soil, plant and water relationships

water quality and water filtration techniques

water requirements of plants and crops consistent with sound environmental management

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