Agricultural Equipment Technician 20, 30

(a)	Identify and follow safe work practices (e.g., check coolant temperature and pressure) when working with cooling systems, including maintaining a clean and organized work area.
(b)	Demonstrate the proper disposal of used coolants and explain potential environmental concerns of antifreeze disposal.
(c)	Identify the role of antifreeze in a cooling system.
(d)	Explain how cooling systems remove and dissipate heat from engines.
(e)	Describe the function of the components (e.g., pump, reservoir, thermostat and radiator) of a liquid cooling system.
(f)	Compare the operation of compound cooling systems.
(g)	Investigate common cooling system maintenance procedures (e.g., checking fluid levels and flushing the system) and tests (e.g., visual inspection, coolant and pressure tests and leak detection).
(h)	Fill coolant systems according to specifications and purge air where required.
(i)	Identify the risks of removing a radiator cap from a hot or overheated cooling system.
(j)	Describe the function and operation of a heating system to heat, cool and ventilate agricultural equipment cabs.
(k)	Examine regulations and legislation that govern the use of air conditioning systems.
(l)	Explain the basics of how an air conditioning system works.