200. Essential duties identified on the Test Content Specifications for Plant Maintenance Grade I.

201. Repairs, maintains, installs, inspects, troubleshoots, and adjusts a variety of mechanical equipment at treatment facilities. Equipment includes: sluice gates, compressors, and flights; hydraulic controls; mechanical structural, and plumbing apparatus; belt, chain, and conveyors; diesel and or gas engines and related co-generation equipment.

202. From work orders, drawings, specifications, schematics, sketches, verbal and written instructions, performs complex mechanical maintenance, repairs, fabrication, and rebuilding of shop, field, and plant equipment used in wastewater plants, pump stations, and collection systems.

203. Maintains, installs, inspects, and repairs a variety of pumps, such as centrifugal, positive displacement, and screw; services, lubricates, and adjusts chemical feed and processing equipment; determines excess wear and pump efficiencies; and follows preventive and predictive maintenance practices.

204. Performs horizontal and vertical welding, fabricating, silver soldering, hard facing, and braising using acetylene, arc, mig, and tig welder on most ferrous and nonferrous metals; makes specialized cuts and complex angles using a band saw; and performs blacksmithing and parts fabrication.

205. Maintains, installs, inspects, and repairs piping systems of pvc, black and cast iron, stainless steel, and copper tubing; installs, removes, and repairs larger pipes and valves; draws minor new designs; modifies existing piping systems and welded steel pipe, such as nozzles and saddles; and taps, cuts, and threads pipes.

206. Performs complex maintenance and repair tasks on a wide variety of internal combustion engines; adjusts valves and carburetors; and repairs and maintains exhaust systems.

207. Performs regularly scheduled maintenance, inspection, and repair tasks on comminuting and grinding devices; overhauls equipment, such as cutters, bearings, chains, mechanical seals, gear reducers; performs close tolerance checking and testing.

208. Performs basic to complex maintenance, inspection, and repair or overhauling tasks on drive components, such as right angle drive gears, reduction drives, variable speed and belt and chain drives.

209. Overhauls, maintains, installs, adjusts, inspects, and repairs a variety of hydraulic and pneumatic systems and compressors.

210. Properly uses and cares for hand and power tools such as grinders, saws, jacks, hydraulic presses and pullers, and pipe threaders, inspects, tests, and measures equipment and material using precision instruments such as scales, height and depth gauges, calipers, verniers, and micrometers of various types.

211. Plans tasks, keeps records of work performed and makes estimates of labor and material necessary for the performance of the work.

212. Follows proper safety practices, precautions, and procedures, such as confined space entry, storing, handling, and transporting gases, using correct lockout and tagout procedures, using flash protection when welding, and assisting in using safe rigging and welding practices.

ESSENTIAL DUTIES
Mechanical Technologist Grade III

300. Essential duties identified on the Test Content Specifications for Plant Maintenance Grade I, and Mechanical Technology Grade II.

301. Prepares receives and reviews assignments for the mechanical maintenance of potable water, wastewater, storm drainage, hydraulic power, chemical handling systems and oxygen injection systems.

302. Supervises and participates in and reviews the work of staff responsible for maintenance of the wastewater treatment plant including repair and installation of all hydraulic, pneumatic and mechanical equipment.

303. Participates in the development of policies and procedures; monitors work activities to ensure compliance with established policies and procedures and makes recommendations for changes and improvements to existing policies and procedures.

304. Performs complex preventive mechanical maintenance.

305. Performs complex corrective mechanical maintenance by troubleshooting cause of malfunction using visual inspection and precision measuring and testing instruments and replacing or repairing broken parts such as gauges, gaskets, plugs, coils, wires, bearings, drive lines, valves, pistons, rings, crankshafts and pumps.

306. Rebuilds equipment by disassembling, cleaning, ordering replacement parts, repairing mechanical malfunctions and reassembling and testing.

307. Plans or assists in the planning and implementation of computer based maintenance programs.

308. Estimates materials, equipment, and personnel necessary for scheduled and emergency repairs and maintenance.

309. Prepares and is responsible for time and equipment reports.

310. Trains personnel in the proper operation of tools and equipment, chlorine and confined space procedures, and safety practices.

311. Responsible for adherence to safety orders and compliance with federal and CAL-OSHA regulations in all aspects of work.

312. Inspects work in progress and upon completion.

313. Establishes standby lists to insure that personnel are available for problems which might occur after work hours, on weekends, and holidays.

314. Coordinates work with other departments or agencies.

315. Responsible for the administration of outside contract work.

316. Assists in the planning, developing and implementing safety and training programs.