What Does a Heavy Equipment Mechanic Do?
When a tractor breaks down at planting time, the mechanic can be the deciding factor in whether a field goes in on schedule or whether the crew sits idle for days waiting on parts. Heavy equipment mechanics work as members of a maintenance crew, keeping loaders, dozers, tractors and mowers running for contractors, farms, public works departments and university research farms.
Also known as: Equipment Mechanic, Farm Equipment Mechanic
Heavy Equipment Mechanic Duties and Responsibilities
The primary responsibilities of a heavy equipment mechanic include:
- Diagnose hydraulic, electrical and drivetrain faults on loaders, backhoes, tractors and mowers.
- Read fault codes with diagnostic laptops running software such as Cat ET or John Deere Service ADVISOR.
- Rebuild hydraulic cylinders, pumps and valves, and replace worn hoses and fittings.
- Change oil, filters and fluids on a schedule set by each machine's hours of use.
- Weld and fabricate brackets, bucket edges and guards to repair cracked or bent parts.
- Replace tracks, undercarriage parts, tires and brakes on crawlers and wheeled machines.
- Drive the service truck to job sites and fields to repair machines where they broke down.
- Inspect equipment before busy seasons such as planting, harvest and snow removal.
- Keep service records, order parts and track warranty claims with dealers.
- Operate repaired machines to confirm the fix before returning them to crews.
Required Skills and Qualifications
To succeed as a heavy equipment mechanic, you will need the following skills and qualifications:
- Hydraulic and electrical troubleshooting
- Diagnostic software such as Cat ET or John Deere Service ADVISOR
- MIG and stick welding
- Reading schematics and service manuals
- Your own set of hand tools, which many shops expect
- Commercial driver's license (CDL), which some employers require
- Problem solving in mud, cold and tight spaces
- Strength for heavy parts and long shifts at harvest
Education and Training
Although a high school diploma and long training on the job are the standard route, a diesel or heavy equipment program at a technical college can shorten the climb. Dealer training programs may also help. Bear in mind that shops are more likely to hire a mechanic who already owns a basic set of tools.
Salary and Job Outlook
Typical pay: $56,970 - $79,270 per year, with a median of $65,510.
The range covers the middle half of earners nationwide. Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025, Mobile Heavy Equipment Mechanics, Except Engines.
BLS projects employment of mobile heavy equipment mechanics to grow about 7 percent from 2025 to 2035. The same projections show about 15,000 openings a year, spread across contractors, equipment dealers, farms and public agencies. Demand should hold for several reasons, including road and bridge work; farm machinery, such as combines and tractors packed with electronics; and aging fleets that need constant repair.
Outlook source: U.S. Bureau of Labor Statistics, Employment Projections, 2025 to 2035, Mobile heavy equipment mechanics, except engines.