Machinist

Performs highly skilled work in the set up and operation of a variety of machine tools to produce and repair precision parts, instruments, and tools. This includes fabricating, modifying, and repairing mechanical instruments and industrial machines in the machine shop and field. Incumbents must employ knowledge of mechanics, mathematics, metal properties, layout, and machining procedures.

The class of Machinist performs journey-level maintenance Machinist duties under general supervision and is distinguished from the next lower class of Machinist Helper in that the latter performs semi-skilled work under close supervision.

General supervision is provided by a Machinist Supervisor, a higher-level administrator, or a division manager. Responsibilities may include functional supervision of Machinist Helper and/or other lower-level staff. Depending upon the assignment, duties may include, but are not limited to, the following:

• Perform precise repair, maintenance, and installation work on a variety of waterworks and City facilities.
• Set up and operate a variety of stationary and portable machine tools such as metal lathes, mills, drill presses, grinders, and other machine shop equipment in manufacturing, fabricating, and repairing machinery and equipment such as large industrial pumps, compressors, hydraulic equipment, motors, valves, chlorinators, clarifiers, gauges, chemical feeders, engines, hoists, and blowers.
• Utilize troubleshooting equipment and procedures for vibration monitoring of rotating machinery.
• Cut and shape metal to precise dimensions within close tolerances.
• Sharpen and repair machine shop tools.
• May assist with training and directing work of new and lower-level staff; make certain proper safety precautions are followed.
• Install, dismantle, maintain, inspect, and repair equipment used with water, gas, oil, chemical, heating, and sewage systems.
• Observe and listen to operating machines or equipment to diagnose malfunctions and determine need for adjustment or repairs.
• Work from sketches, drawings, blueprints, and written or verbal instructions; prepares scaled sketches of work to be performed and/or documented.
• Perform acetylene, tungsten inert gas, metal inert gas, and electric arc welding and cutting operations.
• Maintain and manufacture parts for mechanical systems of water treatment, drainage, and wastewater facilities.
• Maintain HVAC systems and air dryers.
• Install pipe-lines, valves, chemical feeders, screens, gates, tanks, and bases.
• Make concrete forms; mix and pour concrete for installation or repair of equipment or facilities.
• Operate machinery to load and unload trucks carrying hazardous materials; work on operating systems containing hazardous materials.
• Drive and operate trucks and trailers, dump trucks, and cranes with a Gross Vehicle Weight Rating (GVWR) under 26,000 pounds.
• Perform load planning and load rigging functions.
• Write reports and maintain records of projects and maintenance.
• Write and complete corrective and preventative maintenance work orders, including any root cause analysis results related to equipment failures.
• Coordinate with internal and external staff to ensure proper facility operations.
• Respond to emergencies on an on‑call or standby basis as required.
• Perform other or related duties as assigned.

• Standard practices, materials, tools, and methods of the Machinists' trade.
• Mechanics, shop mathematics, metal properties, layout, and machining procedures.
• Occupational hazards and safety requirements of the trade.
• Qualities, adaptabilities, and uses of a variety of metals and alloys.
• Welding techniques and practices.
• Modern predictive maintenance tooling and asset management procedures.

• Perform a wide range of machinist and mechanical repair and maintenance activities, using standard methods and equipment.
• Interpret and work from sketches, plans, blueprints, and worn or broken parts.
• Do precision work within close tolerances.
• Diagnose and troubleshoot problems in operating machinery.
• Work in confined spaces, on temporary scaffolding, on high structures, and in sewage wet pits.
• Recognize and deal with hazardous situations.
• Read and write the English language at a level necessary for efficient job performance.
• Estimate labor and materials for proposed work and keep complete and accurate records.
• Use computerized maintenance management software (CMMS).
• Work in high pressure situations.
• Work effectively with others.

• Setting up and operating a variety of machine tools and equipment.
• The care and maintenance of machine tools and equipment.
• Diagnoses of problems in machinery.
• The repair of a variety of machinery, equipment, and facilities.
• Use of standard hand, electric, and pneumatic tools of the mechanical trades.
• Oral and written communications.

Experience:

Two years of experience equivalent to a journey-level Machinist with the City of Sacramento.

-OR
- Five years of experience equivalent to a…