Diesel Mechanic

LOD Staffing•San Antonio, TX

28d•Onsite

About The Position

A Diesel Mechanic inspects, diagnoses, and repairs diesel-powered vehicles and machines, such as trucks, forklifts, and trailers. Their main duties include running diagnostic tests on vehicles, replacing engine, transmission, steering mechanism, or braking system components, and test driving the vehicle to confirm repairs. This role performs maintenance and repair activities on various heavy equipment, including heavy-duty trucks, semi-tractors, material spreaders, and military-type vehicles. The mechanic will diagnose, service, and repair systems on heavy equipment, such as mechanical and computer electronic controls, air brake systems, transmissions (including computer-controlled automatic and 13-speed manual), high voltage generators, propane-powered equipment, and pneumatic systems. They will troubleshoot and repair malfunctions, and service track drive components, hydraulic reversers, final drives, brake bands, steering clutches, and hydrostatic transmissions. Fabrication, modification, and installation of special equipment or replacement parts using mills, lathes, welders, torch sets, plasma cutters, and metal cutting saws are also part of the duties. Routine maintenance checks and adjustments, including fluid levels, hoses, belts, brakes, tires, and clutches, as well as filter and oil changes, and lubrication, are performed. The role involves servicing, diagnosing, repairing, and maintaining speed tandem drive axles, hydrostatic-driven, and heavy-duty multi-axle suspensions. Tuning gas and diesel engines, servicing valves, fuel filters, and turbochargers, and performing pressure checks on fuel filters, adjusting injector heights, fuel racks, and governors are also key responsibilities. The mechanic will diagnose problems, disassemble units, repair or replace parts, and reassemble units in various systems including Brakes, Cooling, Drive, Electrical (12 and 24-volt systems), Exhaust and Emissions Control, Heating and Air Conditioning, Hydraulic, Air, Steering and Suspension Systems, and Coupling Devices. Overhauling and replacing engines, and rebuilding components are also required. The role includes maintaining service logs and records using fleet maintenance and management software, preparing work orders, and estimating material costs. Keeping tools, equipment, and the work area clean, organized, and in good working condition is essential. The mechanic may assist in training lower-level workers and road tests vehicles. Related work as assigned.

Requirements

3+ years of experience.
Knowledge of standard practices, materials, tools, and equipment used in the repair and maintenance of motor vehicles and engines.
Knowledge of safety issues in the use of tools, equipment, and supplies used in repair of motorized vehicles and equipment.
Knowledge of body and frame construction.
Skill in the use of a variety of hand tools.
Skill in the use of gas and electric welding equipment.
Skill in the use of mechanized tools, jacks, and hoists.
Skill in the use of a variety of diagnostic testing and tuning equipment.
Ability to diagnose mechanical, electrical, and hydraulic malfunctions.
Ability to read manuals and schematics.
Ability to rebuild engines and major drive line components.
Ability to communicate with other mechanics about repair work needed.

Responsibilities

Inspects, diagnoses, and repairs diesel-powered vehicles and machines.
Runs diagnostic tests on vehicles.
Replaces engine, transmission, steering mechanism, or braking system components.
Performs maintenance and repair activities on various pieces of heavy equipment.
Diagnoses, services, and repairs various systems on heavy equipment.
Troubleshoots malfunctions in the equipment and repairs them.
Repairs and services track drive components, hydraulic reversers, final drives, brake bands, steering clutches, and hydrostatic transmissions.
Fabricates, modifies, and installs special equipment or replacement parts.
Performs routine maintenance checks and adjustments.
Services, diagnoses, repairs, and maintains drive axles and suspensions.
Tunes gas and diesel engines, services valves, fuel filters, and turbochargers.
Diagnoses problems, disassembles units, repairs or replaces parts, and reassembles units in various systems (Brakes, Cooling, Drive, Electrical, Exhaust and Emissions Control, Heating and Air Conditioning, Hydraulic, Air, Steering and Suspension Systems, Coupling Devices).
Overhauls engines, replaces engines, and rebuilds components.
Maintains service logs and records of maintenance on vehicles and motorized equipment.
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.