UNIT DESCRIPTOR:This unit involves the skills and knowledge required to operate and carry out basic routine servicing within the limits of responsibility and skill of a Marine Engine Driver Grade 2 on auxiliary systems on a small commercial vessel up to 750 kW propulsion power, including the steering gears; lubricating oil and cooling water systems; pumps, bilge and sea water systems; and fuel and fuel oil systems on the vessel.Note: Relevant State/Territory training and qualification requirements need to be fulfilled by any persons carrying out installation, maintenance and/or repair of refrigeration equipment especially with regard to preventing the escape of refrigerants into the atmosphere and to electrical work. Work on refrigeration systems only includes allowable basic operator servicing as per manufacturer's manual. Maintenance and repair of refrigeration systems on a vessel should only be performed by persons qualified under the relevant regulations.