Explore a possible path

Mobile Heavy Equipment Mechanics, Except Engines

Diagnose, adjust, repair, or overhaul mobile mechanical, hydraulic, and pneumatic equipment, such as cranes, bulldozers, graders, and conveyors, used in construction, logging, and mining.

How does this connect to your interests? →

A look at the work

  • Repair and replace damaged or worn parts.
  • Test mechanical products and equipment after repair or assembly to ensure proper performance and compliance with manufacturers' specifications.
  • Operate and inspect machines or heavy equipment to diagnose defects.
  • Read and understand operating manuals, blueprints, and technical drawings.
  • Dismantle and reassemble heavy equipment using hoists and hand tools.
  • Overhaul and test machines or equipment to ensure operating efficiency.
  • Adjust, maintain, and repair or replace subassemblies, such as transmissions and crawler heads, using hand tools, jacks, and cranes.
  • Repair, rewire, and troubleshoot electrical systems.

A selection of source-listed tasks; duties vary by role and employer.

Interests involved in this work

These source scores describe occupational work activities. They are separate from your personal test results.

Hands-on

2026-02 · Machine Learning/Expert

7.0 / 7

Investigative

2026-02 · Machine Learning/Expert

3.5 / 7

Creative

2026-02 · Machine Learning/Expert

1.0 / 7

Helping people

2026-02 · Machine Learning/Expert

1.0 / 7

Enterprising

2026-02 · Machine Learning/Expert

1.0 / 7

Organizing

2026-02 · Machine Learning/Expert

4.4 / 7

Skills to explore

Source-reported importance on a 1–5 scale. Try a course, project or conversation to learn what these skills involve.

Troubleshooting

Determining causes of operating errors and deciding what to do about it.

2017-07

4.1 / 5

Repairing

Repairing machines or systems using the needed tools.

2017-07

4.1 / 5

Equipment Maintenance

Performing routine maintenance on equipment and determining when and what kind of maintenance is needed.

2017-07

4.0 / 5

Operations Monitoring

Watching gauges, dials, or other indicators to make sure a machine is working properly.

2017-07

3.8 / 5

Operation and Control

Controlling operations of equipment or systems.

2017-07

3.6 / 5

Equipment Selection

Determining the kind of tools and equipment needed to do a job.

2017-07

3.4 / 5

Quality Control Analysis

Conducting tests and inspections of products, services, or processes to evaluate quality or performance.

2017-07

3.4 / 5

Critical Thinking

Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions, or approaches to problems.

2017-07

3.3 / 5

Reading Comprehension

Understanding written sentences and paragraphs in work-related documents.

2017-07

3.1 / 5

Complex Problem Solving

Identifying complex problems and reviewing related information to develop and evaluate options and implement solutions.

2017-07

3.1 / 5

Plan a small next step

Talk to someone doing this work, look for a supervised activity, and explore the subjects that interest you. Admission, licensing and current program requirements should be confirmed with the relevant institutions.

Source preparation category: Job Zone 3 of 5 · 2017-07. This category describes typical preparation, not your eligibility.

Related study fields

Source crosswalk connections are research leads, not required qualifications.

Agricultural Mechanics and Equipment/Machine Technology/Technician →

Heavy Equipment Maintenance Technology/Technician →

Explore all related study fields →

Source & methodology

O*NET-SOC code 49-3042.00 · Database 31.0 · Retrieved Oct 14, 2026. Dates on individual observations describe their source periods.

How interest exploration matching works →

Data: O*NET® 31.0 Database, U.S. Department of Labor, Employment and Training Administration. Used under CC BY 4.0. StudyIndex normalizes the presentation and adds exploration features; USDOL/ETA has not approved, endorsed or tested these additions.