Truck​/Heavy Equipment Mechanic

The purpose of this classification is to identify the source of mechanical failure and independently repair and overhaul gasoline and diesel-powered heavy equipment and passenger vehicles.

The following duties are normal for this position. The omission of specific statements of the duties does not exclude them from the classification if the work is similar, related, or a logical assignment for this classification. Other duties may be required and assigned.

Performs maintenance and repair activities on various pieces of heavy equipment including but not limited to heavy-duty truck and semi-tractors, material spreader, 6-wheel drive military type vehicles, excavators, skidders, high pressure pumps, 25 ton and smaller bulldozers, graders, cranes, underbody blades, dump bodies, crawler tractors and trailers, backhoes, trailers, electronic message boards and signs, street sweepers, aerial towers and man lifts.

Diagnoses, services and repairs various systems that are found on pieces of heavy equipment such as mechanical and computer electronic controls, air brake systems, transmissions, computer controlled automatic and manual transmissions, high voltage generators, propane powered equipment, and pneumatic systems. Troubleshoots malfunctions in the equipment and repairs same. Repairs and services track drive sprockets, rails, idler wheels, hard bars, track adjusters, hydraulic reversers, final drives, brake bands, steering clutches and hydrostatic transmissions.

Fabricates, modifies, and installs special equipment or replacement parts using mills, lathes, welders, torch sets, plasma cutter and metal cutting saws.

Performs routine maintenance checks and adjustments on such things as fluid levels, hoses, belts, brakes, tires, and clutches; changes filters and oil, and lubricates vehicles and motor driven equipment.

Services, diagnoses, repairs and maintains speed tandem drive axles with air or electric shift, hydrostatic driven, heavy duty multi-axle suspensions, both conventional steel and air springs.

Tunes gas and diesel engines, services valves, fuel filters and turbo chargers, and pressure checks fuel filters, adjusts injector heights, fuel racks, governors, etc.

Diagnoses problems, disassembles units, repairs or replaces parts, and reassembles units in various systems to include but not limited to:
Brake systems, repairs or replaces shoes, pads, drums, hoses, calipers, cylinders, any heavy-duty air brakes;
Cooling system, flushes radiator, replaces hoses and thermostat, repairs or replaces radiator and water pump, fan drives, DCA treatment filters, air intercoolers and oil coolers;
Drive systems, repairs and replaces drive shaft, differential, axle, manual, automatic and sophisticated computer-controlled transmissions, clutches, transfer cases, power take-off systems, transmission reversers, all-wheel drive steering axles and final drives;
Electrical systems, repairs or replaces fuses, batteries, lights, instruments, warning devices, controls and switches, computer controls, modules, alternators, starters, and defective cables and wiring;
Exhaust and Emission Control systems, replaces mufflers, manifolds, catalytic converters, turbochargers, blowers, and pipes;
Heating and Air Conditioning systems, repairs or replaces heater cores, condensers, compressors, hoses, and controls; recharges air conditioning systems;
Hydraulic systems, repairs or replaces pumps, hoses, valves, winches and cylinders;
Air systems, repairs or replaces compressors, air dryers, brake valves, air tanks and hoses;
Steering and Suspension Systems, aligns and balances wheels, repairs or replaces tie rods, ball joints, gear boxes, shock absorbers, springs, steering linkage, kingpins, power steering, hoses, pumps, walking beam suspensions and air suspensions; and Coupling Device systems, adjusts, repairs, inspects and replaces fifth wheel hitches and pintle hitches.

Overhauls engines, replaces engines, and rebuilds components.

Maintains service logs and records of maintenance on vehicles and motorized equipment, using fleet maintenance and management software. Prepares work orders and cost materials estimates.

Keeps tools, equipment, and work area clean, organized, and in good working condition.

May assist in training lower-level workers in mechanical repair techniques.

Road tests vehicles.

Performs related work as assigned.

This classification is designated as a safety sensitive position which is subject to random drug and alcohol testing and any other drug testing methods as stated in policies adopted by Forsyth County concerning drug and alcohol.

Provides assistance to other employees or departments as needed.

Performs other related duties as required.

High school diploma or GED; supplemented by vocational/technical training in mechanics, automotive/mechanical repair, and collision repair; supplemented by five (5) years of previous experience and/or training that includes heavy equipment and diesel mechanics, automotive/mechanical…