This is semi-skilled work in the performance of a variety of maintenance and repair tasks in one or more trades areas for the Miami-Dade Water and Sewer Department.

Employees in this class perform a variety of general maintenance work which approaches the journeyman level but does not require as high a degree of skill. Employees are frequently called upon to perform rough maintenance and repair work covering several utility, mechanical or building trades areas. Assignments are usually received verbally, may be accompanied by sketches or diagrams, and are generally specific as to the nature of the work. Employees may devise their own methods of accomplishing assigned tasks and may work with some independence. All work is subject to inspection in process and upon completion by a skilled trades employee or technical supervisor.

ILLUSTRATIVE TASKS

Assists in the installation and repair of various sizes of clay, PVC, galvanized and cast iron pipes above and below ground; assists in the repair and installation of various sizes of water mains and services.

Operates jetter, vactor and sidelift equipment.

Checks and maintains fluid levels on mobile equipment, crew trucks, sidelifts and air compressors on a daily basis; checks and maintains truck stock such as fittings, clamps and chemicals.

Assists in drilling manhole walls, inserting probes and inserting grout for repairs.

Assists in the repair and maintenance of hydraulic, electronic and hydronic systems on jetters and vactors.

Repairs and maintains small tools including tamper/wackers, jackhammers, light-towers, root cutters, gas and air saws, and pneumatic hand tools.

Performs smoke tests by placing blowers over manholes and dropping smoke bombs into manholes; keeps simple test records and submits reports.

Assists in the repair and overhaul of pumps, shafts and other mechanical items; cleans and maintains pump station equipment and keeps simple records.

Replaces defective light bulbs and flourescent lights; replaces burned out fuses; cuts, threads and bends conduit pipe to sizes and lengths required by electricians.

Makes general minor repairs to wood fixtures; assists in the installation of doors, door jams, and other hardware fixtures.

Mixes plaster, mortar and cement; assists journeymen engaged in building or repairing brick, stone or tile walls and structures.

Prepares walls for painting and does rough painting; erects scaffolding.

Assists in repair and overhaul of air conditioning and refrigeration equipment.

Assists plumbers by unstopping sinks, toilets, sewer lines and similar facilities.

Makes minor repairs to riding lawnmowers, pushmowers, weedeaters and edgers; changes oil, adjusts and cleans equipment.

Loads and unloads materials; cleans tools and work area upon completion of projects.

Performs related work as required.

KNOWLEDGES, ABILITIES, AND SKILLS

Knowledge of the standard tools, materials, methods and practices of a variety of trades areas.

Knowledge of the occupational hazards and safety precautions applicable to the area of assignment.

Ability to understand and follow verbal and written instructions.

Ability to understand and work from rough sketches and diagrams.

Ability to make rough estimates of time and material requirements for maintenance and repair assignments.

Skill in the care and use of tools, materials and equipment of various trades areas.

Skill in the operation of power tools and equipment.

Physical strength and agility sufficient to perform assigned duties.

NEW 12-96