Los Angeles County Metropolitan Transportation Authority

Job Classification Specification

MACHINIST
Pay Grade A33

Basic Function
Under moderate supervision, sets up and operates machines and precision hand tools to cut, shape, and finish ferrous & non-ferrous metals, plastics and other exotic materials for the manufacture, remanufacture, assembly, installation, and repair of vehicle and equipment parts and components.

Classification Characteristics
Machinist is an Amalgamated Transit Union (ATU) journey-level position. It differs from the Machinist Leader (ATU) in that a Machinist sets up and operates machines and precision hand tools to cut, shape, and finish metals and products used for the manufacture, assembly, installation, and repair of vehicle and equipment parts while a Machinist Leader oversees and coordinates the daily activities of a group of Machinists and assignes tasks within a work crew. The Machinist Leader communicates and implements safety rules, policies, and procedures and maintains accountability for the safety of assigned employees. A Leader receives additional pay for each hour worked as stipulated by the appropriate collective bargaining agreement. Assignments are in the form of oral or written instructions and may be accompanied by sketches, plans, blueprints and worn, broken or sample parts. There is latitude for determining specific work methods and the work is subject to inspection in progress and upon completion.

Supervised by: Equipment Maintenance Supervisor

Supervises:

FLSA: Non-Exempt

Work Environment
In order to achieve Metro’s goals in support of its mission, potential candidates are required to commit and continuously practice and demonstrate the following work values:

Examples of Duties
  • Sets up and operates machine and precision hand tools to fit, manufacture, or repair vehicle parts or mechanisms or other related vehicle components, such as transmissions, pumps, differentials, compressors, blowers
  • Disassembles, repairs, and reassembles components and equipment to ensure adherence to precision alignment and close tolerance requirements
  • Operates lathe for turning, shaping, and finishing shafts, axles, pins, pulleys, and gear for forming flat end surfaces, collars, shoulders, and cylindrical surfaces; cutting screw threads; and drilling, reaming, tapping, and bruling a variety of work pieces
  • Operates milling machines to produce, flat, curved, and irregular surfaces for slots, grooves, keyways, dovetails, spines, flutes, cams, and gears
  • Cleans parts, before and after machining, to remove grease, rust stains, and other foreign matters
  • Works from blueprints, sketches, engineering drawings, damaged parts, or description of parts to be replaced to determine dimensions and tolerances of parts to be manufactured, sequence of operations, and tools, materials, and machines required
  • Verifies dimensions of finished products, using Geometric Dimensioning and Tolerancing (GD&T), measuring instruments such as micrometers, calipers, and dial indicators, to ensure adherence to specifications
  • Utilizes Computer Aided Design and Computer Aided Manufacturing (CAD/CAM) software to operate Computer Numerical Control (CNC) machines
  • Contributes to ensuring that the EEO policies and programs of Metro are carried out

Essential Knowledge and Abilities

Knowledge of:

  • Theories, principles, and practices in the machining of metals for the repair or production of various vehicle and equipment parts
  • Properties of various types of metals as they relate to manufacturing and repair activities
  • Operations of various precision hand and machine tools, including Computer Numerical Control (CNC) lathes and mills, bridge port mills, manual lathes, sharpeners, and radial drills
  • Machine operations and safety
  • Shop mathematics
  • Vehicle operations and safety

Ability to:
  • Operate a variety of precision hand and machine tools to cut, shape, and finish metals and products used for the manufacture, assembly, installation, and repair of vehicle and equipment parts
  • Use micrometers and precision measuring instruments
  • Utilize (CAD/CAM) software
  • Read, understand, and apply blueprints, diagrams and specifications
  • Assess and resolve technical equipment problems and breakdowns
  • Safely operate Metro vehicles
  • Safely operate a variety of hand and power tools
  • Communicate effectively with others
  • Follow verbal and written instructions
  • Lift and move objects weighing up to 50 pounds
  • Travel to offsite locations within a reasonable timeframe
  • Read, write, speak, and understand English

Minimum Qualifications
Potential candidates interested in the MACHINIST position MUST meet the following requirements:

  • Four years’ journey-level experience performing machinist work in the following areas: manufacture, assembly, installation, and repair of vehicle and equipment parts, special tooling, jigs, and fixtures; operation of vertical mill, horizontoal mill and lathe; drilling, milling, turning and grinding ferrous and non-ferrous metals, plastics and other exotic materials for manufacturing and remanufacturing; and operation of a Computer Numerical Control (CNC) mill and lathe OR
  • Completion of a 4 year machinist apprenticeship program from a recognized union which includes training in all of the abovementioned areas
  • Valid California Class C driver's license

Special Conditions
  • Must possess required standard tools of specified trade
  • Must wear required safety equipment whenever on duty
  • Must comply with all California Occupational Safety and Health Administration (Cal/OSHA) regulations and utilize approved safety equipment and personal protective gear including, but not limited to, respirators, eye and hearing protective devices (HPD), if and when required
  • Positions in this classification are considered safety sensitive under Federal Transit Administration (FTA) drug and alcohol regulations
Positions in this classification are considered safety sensitive under Federal Transit Administration (FTA) drug and alcohol regulations.

Disclaimer
This job specification is not to be construed as an exhaustive list of duties, responsibilities, or requirements. Employees may be required to perform other related job duties.


Date Originally Created: 3/20/2000
Date Last Revised: 2/21/2013
ATU: 0779A