Fleet Maintenance Mechanic II

Heavy Duty Mechanic

Under general supervision is responsible for providing services, maintenance and repair to County vehicles and equipment ensuring that they are in proper working order. Performs skilled maintenance and repair of heavy-duty equipment, including diesel-powered equipment. Work requires a high degree of technical knowledge as well as the ability to exercise independent judgment in determining the method of repair. Work involves diagnosing and repairing electrical and hydraulic systems, and performing major repairs on a wide range of vehicles, including heavy construction and refuse equipment. Reports to the Fleet Operations Director.

Communicates with other County employees in order to locate disabled vehicles during service calls. Writes comments on repair orders to exchange information and reports progress during the course of repair work. Repairs and adjusts gasoline and diesel engines, fuel systems, transmissions, and other mechanical devices. Overhauls in-chassis engines and brake systems. Tests, adjusts, and repairs fuel systems, transmissions, brake components, and other mechanical devices. Performs vehicle emissions testing on gas or diesel engines. Sets hydraulic pressures to manufacturer specifications. Troubleshoots and repairs hydraulic and electrical problems, including: stuck valves, damaged pumps, and bypassing cylinders. Removes and installs hydraulic cylinders and components. Measures distances to determine wear values, such as brake drums and internal engine components, and to correct mechanical discrepancies. Uses screwdrivers, wrenches, air-powered tools, etc., in completing repair work. Detects air leaks while inspecting air brakes. Detects vapors from hydraulic, motor, and transmission oils, brake fluids, diesel fuel, gasoline, etc. Inspects equipment and vehicles to assist in problem diagnosis. Traces electrical systems. Works with brake cleaners and solvents. Cleans work area and equipment. Moves heavy objects, such as: 15-inch brake drum assemblies, clutch and flywheel assemblies, and hydraulic components for distances of up to ten feet using an appropriate aid as needed. Works in small, cramped areas, at heights greater than ten feet, in repairing lighting systems on vehicles, and in a variety of weather conditions in performing field service or road calls. Works around or uses potentially hazardous materials requiring the use of specialized equipment. Diagnoses operational problems on heavy-duty equipment, such as engines, transmissions, brakes, hydraulic systems, etc., in order to determine the source of a problem. Comprehends, interprets, and makes inferences, anrecommended by the manufacturer in classroom settings. Knowledge of the hazards and safety precautions of the mechanic's trade; the methods, materials, tools, and standard practices of the heavy-duty mechanic's trade; the principles of operation of internal combustion and diesel engines; steering and suspension systems, and electrical systems and equipment; the operating and maintenance requirements of heavy-duty equipment; the installation and repair of major systems, including: air conditioning, air brakes, and air systems; the state gas or diesel engine emissions testing requirements; and the techniques and practices of gas and arc welding. Possess the ability to diagnose and repair operational problems on heavy-duty equipment; understand and effectively carry out verbal and written instructions; prepare and maintain accurate work records of maintenance work; handle all physical requirements of the class; and establish and maintain effective working relationships with management, coworkers, supervisors, and user departments. The duties listed above are intended only as general illustrations of the various types of work that may be performed. Specific statements of duties not included does not exclude them from the position if the work is similar, related, or a logical assignment to the position. Job descriptions are subject to change by the County as the needs of the County and requirements of the job change. Applies knowledge from shop service manuals to follow recommended repair procedures. Prioritizes own work assignments. Reads and interprets schematic drawings in diagnosing and correcting wiring problems. Learns job-related material regarding electrical and hydraulic systems through on-the-job training. Learns proper repair techniques as

Minimum Qualification(s) Required. Any combination of training, education, or experience equivalent to a minimum of five years' experience as a journey-level mechanic, including some (6 months - 1 year) experience in heavy-duty equipment maintenance or repair, or as a County of Lancaster Equipment Mechanic I. Preferred/Desirable Qualification(s). Certification as a National Automotive Institute of Service Excellence (NAISE) Diesel Mechanic and Truck Mechanic, or other related areas is desired. Automotive Service Excellence (ASE) certification as a Master Automotive Technician, plus two (2) Medium/Heavy-Duty Truck certifications in related areas is preferred Physical Requirements: Must be physically able to operate an automobile and a variety of light and heavy equipment and related mechanics equipment and tools. Must be able to exert up to one hundred pounds of force occasionally, and or up to fifty pounds of force frequently, or constantly to lift, carry, push, pull, bend, crawl, reach, stoop or otherwise move objects. Must be able to lift and/or carry weights of fifty to one hundred pounds. Data Conception: Requires the ability to compare and/or judge the readily observable, functional, structural, or compositional characteristics (whether similar to or divergent from obvious standards) of data, people or things. Interpersonal Communication: Requires the ability of speaking and/or signaling people to convey or exchange information. Includes receiving instructions, work assignments and/or directions from immediate supervisor. Language Ability: Requires the ability to read a variety of information such as billing invoices, maintenance reports, fuel reports, parts logs, grease reports, service agreements, etc. Requires the ability to prepare related reports and information, using prescribed format and conforming to all rules of punctuation, grammar, diction and style. Intelligence: Requires the ability to apply common sense understanding to carry out instructions furnished in written, oral, or diagrammatic form; to deal with problems involving several concrete variables in or from standardized situations. Verbal Aptitude: Requires the ability to record and deliver information, to explain procedures, to follow oral and written instructions. Numerical Aptitude: Requires the ability to utilize mathematical formulas; to add and subtract totals; to multiply and divide; to determine percentages and decimals. Form/Spatial Aptitude: Requires the ability to inspect items for proper length, width and shape. Motor Coordination: Requires the ability to coordinate hands and eyes rapidly and accurately in using mechanic tools, etc.; to operate motor vehicles. Manual Dexterity: Requires the ability to handle a variety of items, control knobs, switches, etc. Must have strong levels of eye/hand/foot coordination. Color Discrimination and Visual Acuity : Requires the ability to differentiate colors and shades of color; requires the visual acuity to determine depth perception, peripheral vision, inspection for small parts; preparing and analyzing written or computer data, etc. Interpersonal Temperament: Requires the ability to deal with people beyond giving and receiving instructions. Must be adaptable to performing under minimal levels of stress when confronted with an emergency. Physical Communication: Requires the ability to talk and/or hear: (talking: expressing or exchanging ideas by means of spoken words; hearing - perceiving nature of sounds by ear).

Equal Opportunity Employer