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State of Washington Classified Job Specification


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Class Code: 626M
Category: Maintenance Trades & Labor

Class Series Concept



This is the supervisory or expert level of the series. Positions at this level are responsible for shop administration and supervising maintenance personnel, equipment mechanics or others performing skilled maintenance, repair and modification of plant machinery and mechanical equipment involved with buildings, special apparatus, utilities and facilities.

Typical Work

Supervises journey-level trades workers and others engaged in maintenance, repair and modifications to building mechanical equipment, machinery, special apparatus, utilities and facilities, including laundry, kitchen, hospital, laboratory, elevator, printing, air-conditioning, power plant, and heavy construction equipment;

Reads plans and blueprints, inspects projects to ensure compliance with local codes, determines scope of work, materials needed, estimated cost and availability;

Orders materials and maintains an adequate inventory of required materials to carry on shop or maintenance work;

Develops and conducts a preventive maintenance program for assigned machinery and equipment;

Enforces safety rules and regulations; maintains records on work performed; writes reports as required;

May set tower rigging at elevations to three hundred feet or higher as required, using gin poles and power winches;

May install and maintain tower warning lights and navigation/airway beacons;

May fabricate and install climbing ladders, transmission line ladders, ice shields, and antenna mounts;

May install and maintain all transmission lines, including connectors; install antenna systems and align parabolic reflectors; schedule regular transmission line pressure inspections;

Develops communication site safety plan, conducts daily safety briefings, and inspects safety equipment;

Ensures communication equipment is properly de-energized following lockout / tag out procedures;

May test for and monitor radio frequency energy on or around communication towers;

May perform emergency rescue procedures at heights greater than four feet up to 300 feet;

Expert positions may lead, supervise or instruct incarcerated individuals or residents. However, supervisory positions are required to supervise lower-level staff.

Legal Requirement(s)

There may be instances where individual positions must have additional licenses or certification. It is the employer’s responsibility to ensure the appropriate licenses/certifications are obtained for each position. 

Desirable Qualifications

Positions typically require completion of a recognized apprenticeship in a skilled mechanic trade and two years of experience as a journey-level worker in building and equipment maintenance, construction or repair work.

NOTE: Possession of a valid motor vehicle operator’s license may be required.

Class Specification History

New class effective January 1, 2006; Maintenance Mechanic 4 (replaces 71500 Tower Maintenance Specialist, 75570 Plant Mechanic Supervisor, 5228 Machinery Mechanic Supervisor).
Revised class: Revised definition, typical work and desirable qualifications. Adopted June 22, 2023, effective July 1, 2023.