Specific knowledge is required to achieve the Performance Criteria of this unit, particularly its application in a variety of circumstances in which the unit may be used. This includes knowledge of the following, as required to inspect, test and maintain cooling systems on diesel engine systems: site risk, statutory compliance, health, safety, environmental, quality and communication requirements and procedures limitations on allowable maintenance including work in hazardous environments limitations on allowable modifications and the required controls and procedures provisions of AS/NZS3584.1, 2 and 3 relating to fasteners and joints recognise the requirements and performance of various types of fasteners, including bolts, studs, threads and washers site and manufacturer’s requirements and procedures items required to be used in performance of inspection, testing and maintenance tasks tools required for the performance of inspection, testing and maintenance tasks site inspection, testing and maintenance support requirements and availability site work area inspection requirements site work area safeguarding options and requirements site isolation and lock-out requirements and procedures site hazard and emergency procedures critical temperatures and explosion limits for gasses, dusts and hydro-carbon liquids that may be encountered by a diesel engine system in an underground coal mines, including; coal dust methane diesel fuel margins of safety provided by all relevant Legislation, Regulation, Standards and Guidelines are applied to surface and exhaust gas temperatures methods to limit temperatures including; maintenance, testing and monitoring for; exhaust manifold design & fitment adaptor pipe exhaust flametrap and/or cooler turbochargers air compressors possible failure modes maintenance procedures and practices required to provide controls causes of temperature rise as a gas is compressed, including: intake system to air compressors and failure modes resulting in excessive temperatures output side of air compressors and failure modes resulting in excessive temperatures risks and consequences of carbon build-up in the air stream (fittings, valves and hoses) types of heat exchange including; shell and tube plate plate and fin causes of the degradation of heat exchanger performance, caused by; build up of the products of combustion on the ‘gas’ side of heat exchangers build up of salts, chlorides and other materials on the ‘coolant’ side of heat exchangers temperature controls applied to prevent the exhaust gas stream from exceeding nominate maximum temperatures materials including elastomeric hoses, metallic and synthetic fittings employed in critical components subject to temperature rise under the designed conditions of operation automatic shutdown controls, which may include; the design of the system and the ‘safety margin’ provided in the design for some deterioration in performance coolant flow monitoring devices coolant temperature monitoring devices coolant loss monitoring devices direct exhaust gas temperature monitoring devices water-bath level monitoring devices site inspection, testing and maintenance reporting requirements and procedures site inspection, testing and maintenance record procedures site requirements and procedures for working in isolation site requirements for the use of personal protective equipment |