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United States Job Guide
For Labor / Trades
49-3031.00 - Bus and Truck Mechanics and Diesel Engine Specialists
Diagnose, adjust, repair, or overhaul trucks, buses, and all types of diesel engines. Includes mechanics working primarily with automobile diesel engines.
Sample of reported job titles:
Mechanic, Diesel Mechanic, General Repair Mechanic, Diesel Technician, Transit Mechanic, Fleet Mechanic, Transportation Mechanic, Certified Mechanic, Journeyman Bus Mechanic, Medium/Heavy Truck Mechanic
Tasks | Knowledge | Skills | Abilities | Work Activities | Work Context | Job Zone | Interests | Work Styles | Work Values | Related Occupations | Additional Information
Tasks- Use handtools such as screwdrivers, pliers, wrenches, pressure gauges, and precision instruments, as well as power tools such as pneumatic wrenches, lathes, welding equipment, and jacks and hoists.
- Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
- Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery.
- Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment.
- Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists.
- Test drive trucks and buses to diagnose malfunctions or to ensure that they are working properly.
- Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, and pressure gauges.
- Examine and adjust protective guards, loose bolts, and specified safety devices.
- Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications.
- Specialize in repairing and maintaining parts of the engine, such as fuel injection systems.
back to top Knowledge
| Mechanical — Knowledge of machines and tools, including their designs, uses, repair, and maintenance. |
| Transportation — Knowledge of principles and methods for moving people or goods by air, rail, sea, or road, including the relative costs and benefits. |
| Public Safety and Security — Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions. |
back to top Skills
| Equipment Maintenance — Performing routine maintenance on equipment and determining when and what kind of maintenance is needed. |
| Troubleshooting — Determining causes of operating errors and deciding what to do about it. |
| Repairing — Repairing machines or systems using the needed tools. |
| Reading Comprehension — Understanding written sentences and paragraphs in work related documents. |
| Installation — Installing equipment, machines, wiring, or programs to meet specifications. |
| Coordination — Adjusting actions in relation to others' actions. |
| Equipment Selection — Determining the kind of tools and equipment needed to do a job. |
| Active Listening — Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times. |
| Judgment and Decision Making — Considering the relative costs and benefits of potential actions to choose the most appropriate one. |
| Time Management — Managing one's own time and the time of others. |
back to top Abilities
| Problem Sensitivity — The ability to tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing there is a problem. |
| Manual Dexterity — The ability to quickly move your hand, your hand together with your arm, or your two hands to grasp, manipulate, or assemble objects. |
| Multilimb Coordination — The ability to coordinate two or more limbs (for example, two arms, two legs, or one leg and one arm) while sitting, standing, or lying down. It does not involve performing the activities while the whole body is in motion. |
| Near Vision — The ability to see details at close range (within a few feet of the observer). |
| Oral Comprehension — The ability to listen to and understand information and ideas presented through spoken words and sentences. |
| Oral Expression — The ability to communicate information and ideas in speaking so others will understand. |
| Arm-Hand Steadiness — The ability to keep your hand and arm steady while moving your arm or while holding your arm and hand in one position. |
| Control Precision — The ability to quickly and repeatedly adjust the controls of a machine or a vehicle to exact positions. |
| Deductive Reasoning — The ability to apply general rules to specific problems to produce answers that make sense. |
| Inductive Reasoning — The ability to combine pieces of information to form general rules or conclusions (includes finding a relationship among seemingly unrelated events). |
back to top Work Activities
| Repairing and Maintaining Mechanical Equipment — Servicing, repairing, adjusting, and testing machines, devices, moving parts, and equipment that operate primarily on the basis of mechanical (not electronic) principles. |
| Inspecting Equipment, Structures, or Material — Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects. |
| Operating Vehicles, Mechanized Devices, or Equipment — Running, maneuvering, navigating, or driving vehicles or mechanized equipment, such as forklifts, passenger vehicles, aircraft, or water craft. |
| Handling and Moving Objects — Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. |
| Getting Information — Observing, receiving, and otherwise obtaining information from all relevant sources. |
| Performing General Physical Activities — Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials. |
| Communicating with Supervisors, Peers, or Subordinates — Providing information to supervisors, co-workers, and subordinates by telephone, in written form, e-mail, or in person. |
| Identifying Objects, Actions, and Events — Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events. |
| Updating and Using Relevant Knowledge — Keeping up-to-date technically and applying new knowledge to your job. |
| Establishing and Maintaining Interpersonal Relationships — Developing constructive and cooperative working relationships with others, and maintaining them over time. |
back to top Work Context
| Exposed to Contaminants — How often does this job require working exposed to contaminants (such as pollutants, gases, dust or odors)? |
| Sounds, Noise Levels Are Distracting or Uncomfortable — How often does this job require working exposed to sounds and noise levels that are distracting or uncomfortable? |
| Spend Time Using Your Hands to Handle, Control, or Feel Objects, Tools, or Controls — How much does this job require using your hands to handle, control, or feel objects, tools or controls? |
| Wear Common Protective or Safety Equipment such as Safety Shoes, Glasses, Gloves, Hearing Protection, Hard Hats, or Life Jackets — How much does this job require wearing common protective or safety equipment such as safety shoes, glasses, gloves, hard hats or live jackets? |
| Indoors, Not Environmentally Controlled — How often does this job require working indoors in non-controlled environmental conditions (e.g., warehouse without heat)? |
| Exposed to Hazardous Equipment — How often does this job require exposure to hazardous equipment? |
| Extremely Bright or Inadequate Lighting — How often does this job require working in extremely bright or inadequate lighting conditions? |
| Exposed to Minor Burns, Cuts, Bites, or Stings — How often does this job require exposure to minor burns, cuts, bites, or stings? |
| Spend Time Standing — How much does this job require standing? |
| Freedom to Make Decisions — How much decision making freedom, without supervision, does the job offer? |
back to top Job Zone
| Title |
Job Zone Three: Medium Preparation Needed |
| Overall Experience |
Previous work-related skill, knowledge, or experience is required for these occupations. For example, an electrician must have completed three or four years of apprenticeship or several years of vocational training, and often must have passed a licensing exam, in order to perform the job. |
| Job Training |
Employees in these occupations usually need one or two years of training involving both on-the-job experience and informal training with experienced workers. |
| Job Zone Examples |
These occupations usually involve using communication and organizational skills to coordinate, supervise, manage, or train others to accomplish goals. Examples include dental assistants, electricians,fish and game wardens, legal secretaries, personnel recruiters, and recreation workers. |
| SVP Range |
(6.0 to < 7.0) |
| Education |
Most occupations in this zone require training in vocational schools, related on-the-job experience, or an associate's degree. Some may require a bachelor's degree. |
There are 6 recognized apprenticeable specialties associated with this occupation:
Maintenance Mechanic; Diesel Mechanic; Mechanic, Industrial Truck; Machinist, Marine Engine; Oil-Field Equipment Mechanic; Tractor Mechanic
To learn about specific apprenticeship opportunities, please consult the listing of State Offices for contact information.
For general information about apprenticeships, training, and partnerships with
business, visit the U.S. Department of Labor Office of Apprenticeship Training, Employer and Labor Services (OATELS) website.
back to top Interests
| Realistic — Realistic occupations frequently involve work activities that include practical, hands-on problems and solutions. They often deal with plants, animals, and real-world materials like wood, tools, and machinery. Many of the occupations require working outside, and do not involve a lot of paperwork or working closely with others. |
back to top Work Styles
| Dependability — Job requires being reliable, responsible, and dependable, and fulfilling obligations. |
| Attention to Detail — Job requires being careful about detail and thorough in completing work tasks. |
| Independence — Job requires developing one's own ways of doing things, guiding oneself with little or no supervision, and depending on oneself to get things done. |
| Cooperation — Job requires being pleasant with others on the job and displaying a good-natured, cooperative attitude. |
| Integrity — Job requires being honest and ethical. |
| Self Control — Job requires maintaining composure, keeping emotions in check, controlling anger, and avoiding aggressive behavior, even in very difficult situations. |
| Analytical Thinking — Job requires analyzing information and using logic to address work-related issues and problems. |
| Innovation — Job requires creativity and alternative thinking to develop new ideas for and answers to work-related problems. |
| Persistence — Job requires persistence in the face of obstacles. |
| Concern for Others — Job requires being sensitive to others' needs and feelings and being understanding and helpful on the job. |
back to top Work Values
| Achievement — Occupations that satisfy this work value are results oriented and allow employees to use their strongest abilities, giving them a feeling of accomplishment. Corresponding needs are Ability Utilization and Achievement. |
| Working Conditions — Occupations that satisfy this work value offer job security and good working conditions. Corresponding needs are Activity, Compensation, Independence, Security, Variety and Working Conditions. |
back to top Related Occupations
| 49-2092.06 |
Hand and Portable Power Tool Repairers |
| 49-3042.00 |
Mobile Heavy Equipment Mechanics, Except Engines |
| 49-3051.00 |
Motorboat Mechanics |
| 49-3052.00 |
Motorcycle Mechanics |
| 49-3053.00 |
Outdoor Power Equipment and Other Small Engine Mechanics |
| 49-9021.02 |
Refrigeration Mechanics |
| 51-8021.02 |
Stationary Engineers |
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