Maintenance Mechanic

Works from building plans, blueprints, wiring diagrams, electrical maintenance, and repair manuals to plan and layout the routing, placement, type, size, gauge, balance, load, continuity, and proper and safe operation of electrical lines, circuits, systems, equipment, and controls. Installs, modifies, repairs, loads, and tests secondary electrical distribution lines and circuits used to supply a wide range of voltage, amperage, phase, and frequency requirements.

Determines, arranges, places, and routes conduit, distribution panels, boxes, circuits, fittings, connections, and circuit breakers. Maintains and repairs various electrical systems, including a variety of appliances, lights, electrical drives, alarm and security, circuits, clocks, etc. Locates and diagnoses trouble in fire alarms, lighting, buzzers, clocks, thermostats, etc., which may involve the use of a variety of electrical test equipment.

Installs and repairs a variety of large air conditioning systems, such as mechanical compression, vapor compression, absorption, steam jet, and air cycle, serving large retail, food, services, vending, and office areas. Works on a variety of refrigerant controls such as those with low- and high-pressure side floats, automatic thermostatic expansion valves, capillary or choke types, and those based on volume or quantity changes.

Also works on a variety of complicated motor controls, thermostatic (remote and double remote), defrosting controls, relays, and other controls to protect against overload and overheating.

Dismantles, repairs, and reassembles units such as pumps, impellers, compressors, chillers, receiver, and evaporator. Install and fits related connecting rods, crankshafts, piston rings, bearings, and bushings. Overhauls valves by adjusting or replacing gaskets, springs, floats, diaphragms, valve fittings, seals, and couplings. Aligns motor and flywheel drives.

Performs scheduled preventive maintenance on electrical and air conditioning/refrigeration systems and equipment. Working from drawings and schematic diagrams, prepares labor and material cost estimates and develops bill of materials required for installation and maintenance of electrical and/or air conditioning refrigeration systems.

Performs carpentry, painting, and/or plumbing functions requiring a level of skill and responsibility characteristic of work at grade M-9 and below. May install, maintain, and repair electronic and electro-mechanical cash registers and peripheral equipment. Performs preventive maintenance, routine repairs, and simple emergency repairs, as required.

As required, performs TDY travel of one or more days duration to other Exchange locations. May operate motor vehicle to transport material and associates, when required. May provide work direction for lower graded associates during absence of the supervisor. Ensures compliance with fire, safety, sanitation, and security regulations. Initiates work orders for repair and maintenance. Performs other duties as assigned.