MAINTENANCE MACHINIST (OPEN)

City of Cincinnati; Ohio; On-site; USD 45,000 - 60,000; Full time

Job summary

The City of Cincinnati seeks a skilled technician experienced in machine tools and maintenance. The role involves precision operations for machine repair and installation tasks. Candidates should have a strong background in shop mathematics and safety procedures, along with the ability to work in varying environments and heights. A valid Driver's License is required.

Qualifications

• Minimum of four years of full-time related experience.
• Must be able to work at heights up to 150 feet.
• Valid Driver's License is required.

Responsibilities

• Operate and repair various machine tools including lathes and milling machines.
• Perform scheduled maintenance on heating and hydraulic systems.
• Assist in the installation of large machinery.

Skills

Machine tool operation

Precision measurement

Repair and maintenance

Safety procedures

Shop math

Education

High school diploma or equivalent

Tools

Engine lathe

Milling machine

Hydraulic press

Acetylene torch

Job description

This employee lays out, sets up, and performs precision operations on a wide variety of machine tools (engine lathe, milling machine, shaper, radial drill, etc.), using considerable judgment, to make or repair parts to specifications. Performs scheduled overhaul of heating, ventilating, hydraulic and pneumatic control systems, liquid and dry chemical feeder systems and unit. Is able to discover problems, to repair and make parts and to reinstall them. Directs and assists in the removal and installation of large machinery and equipment. Performs related work as required.(Illustrative only. Any one position may not require all of the listed KSAs nor do the listed examples include all the KSAs which may be required.)

Knowledge of:
Parts and purposes of standard machine tools (engine lathe, milling machine, radial drill, etc.)
SAE, Acme, and standard pitches and diameters of pipes and bolts.
Centrifugal pumps, blowers, and compressors sufficient to know purposes of parts.
Plumbing systems sufficient to shut off valves and to repair or replace parts in the field.
Safety policies and procedures, e.g. Employee Safety Instruction Manual and applicable agency requirements.
Hazardous materials handling laws in sufficient detail to correctly dispose of used solvents.
Skill to:
Choose correct shape and size of material and to machine it to specifications.
Perform shop math such as adding, subtracting, multiplying, dividing, fractions, decimals and metrics and use a protractor to establish angles.
Read drawings and to make field sketches of parts to be duplicated.
Layout work (shafts, sleeves, bolt circles on flanges, etc.) from drawings and parts and to machine them to specifications.
Use precision hand and machine measuring instruments to lay out, set up and check work normally to + or – .001" tolerance.
Select and set up all necessary machine tool cutters, jigs, and fixtures.
Use standard engine lathe and milling machine attachments.
Use steady rest and dividing heads and other specialized attachments.
Operate all controls of engine lathe and milling machine to obtain necessary feed, spindle speed and depth of cut on variety of metals, and to operate related machine shop equipment (other machine tools, ovens, cranes, etc.).
Use lathe and milling machine.
Grind, lap, hone and apply a super finish by hand.
Use machinists' hand and power tools (drills, taps, etc.) in the shop and in the field.
Align pumps to motors in the field.
Install threaded and flanged pipe and tubing.
Operate crane safely.
Examples of Work Performed

(Illustrative only. Any one position within this classification may not include all of the duties listed nor do the listed examples include all of the tasks which may be performed.)
Lays out work from drawings, field sketches, and verbal descriptions.
Selects appropriate machine tool to perform an operation and sets up the equipment with the necessary cutters, chucks, jigs, fixtures, and other attachments.
Reads and interprets feed and spindle charts on engine lathes, milling machines and other machine tools, and selects depth of cut.
Shapes material by operating the engine lathe or milling machine to turn, bore, cut, form chamfer, mill, abrade and saw.
Operates subsidiary machine tools (shaper, drill press, grinder, hydraulic press, etc.) to shape and finish metal to specifications.
Checks work with precision machine shop measuring instruments, normally to .001" tolerance.
Measures existing parts, makes sketches, and duplicates parts, such as pump and valve shafts, and threaded, slotted parts.
May metalize shafts, bearing housings, sleeves, etc.
Performs bench work such as deburring, drilling, etc., on machined parts and disassembles, assembles, and fits together sub-assemblies such as gearboxes, air compressors, hydraulic pumps, etc.
Analyzes the operation of machine tools for malfunctions and makes adjustments and routine repairs.
Checks pump and motor alignment with precision measuring instruments; disassem¬bles parts from equipment and checks for wear.
Modifies housing to receive large bearings.
May take corrective action on pumps, compressors, etc., to assure the equipment is working properly by modifying, repairing, replacing, and installing new parts in the field and on subassemblies at the shop; reinstalls to specifications.
Assists a crew in rigging, removing and installing large machinery and equipment weighing up to 56,000 pounds using cranes, ropes, chains, etc.
May make rough cuts on piping, decks, etc., with acetylene torch.
Working knowledge of current safety policies, instructions for proper usage, and other procedures and professional practices required for completing job duties.
Identifies unsafe practices and conditions and brings such matters to the attention of the crew leader or supervisor.

Open:
A minimum of four (4) years full-time, paid maintenance and machining experience including the proper usage of milling machines and lathes and rebuilding rotating equipment.

OTHER REQUIREMENTS
Must be able to drive a single axle truck and have a valid Driver's License.
Must have the ability to work at heights up to 150 feet and at depths of up to 90 feet from ladders, scaffolding, or walkways to perform rigging and repair work.
Must have the ability to work inside tight and/or enclosed areas such as tanks and pipes.
Must have vision sufficient to read precision gauges accurately and to observe malfunctioning equipment; if less than 20/70 must wear corrective lenses at all times.
Must have hearing sufficient to determine malfunctioning equipment and machine tools.
Must have sufficient finger dexterity to handle small parts and to do precise bench and repair work.
Must have the ability to lift 60 pounds in performance of work.

MILITARY EDUCATION & EXPERIENCE EVALUATION
Military education and experience may be substituted for college level course work at the lower and upper division baccalaureate and graduate levels and apprenticeship training at the vocational certificate level on a case by case basis based on the American Council on Education (ACE) Military Guide recommendations.

Additional Exam Information:

Credit for Military Service: Special credit for honorable military service is given (1) only to Ohio residents, (2) who successfully complete all portions of the testing process, and (3) who provide Human Resources a long-form copy of your DD-214 confirming an honorable discharge (Character of Service Box 24 on DD-214). Disabled veterans shall receive ten preference points and non-disabled veterans shall receive five preference points. Veteran's points will be added only to passing scores.

Background Investigation: A criminal background investigation will be conducted for this position (according to Civil Service Commission Rule 15 – Sensitive Classifications/Positions and the Critical Infrastructure Protection Act of 2001 and the Patriot Act). The purpose is to detect security risks and prevent security threats posed by potential employees.

U.S. Citizenship: All positions with the City of Cincinnati require that each applicant be a citizen of the United States or have a valid permanent resident card at the time of appointment (date of hire).

HR CONTACT: [e-mail]