In order to become a heavy equipment mechanic, you will need to complete a high school education or equivalent. During high school, it is a good idea to take as many shop classes as possible to gain a basic understanding of mechanics and vehicle repair. If your high school does not offer such classes, look into community college courses, or get a part time job at an automobile shop as a parts runner or apprentice so you can learn the basics. Once you graduate from high school, you will need to do some training to become a heavy equipment mechanic.
This step may or may not be necessary, depending on the employer's preferences, but most employers prefer job candidates with some level of formal training in the field. Try to take some courses at a community college or other technical training institution to learn more about the steps necessary to become a heavy equipment mechanic. Coursework may cover repair techniques, diagnostic processes, and even welding techniques. Some employers may require certain welding certifications in order to allow you to become a heavy equipment mechanic for that particular company.
Do not be afraid to start at the bottom when becoming a heavy equipment mechanic. Take a job with a company that will allow you to learn as much as possible about heavy machinery, and work hard to distinguish yourself from other employees. When opportunities to move up in the company arise, apply for them and cite your hard work and training to become a heavy equipment mechanic. Take advantage of on-the-job training offered by employers as well as fellow employees, and practice new techniques as much as possible so you can demonstrate your new skills when the time comes. Many heavy equipment mechanics start within a company doing other jobs, such as basic repairs, manual labor, and so on, and then they move onto heavy equipment mechanic positions when they open up.
Once you obtain a position as a heavy equipment mechanic, you should continue to learn as much as possible and earn certificates when applicable. This makes you a more attractive job candidate for better paying positions or promotions within the company. The more certifications and training you have under your belt, the more valuable you will be to an employer, which means you will be more likely to secure a stable job within the field. Be sure to train other mechanics as your skills develop, as this allows others to learn from you, and it makes you more attractive in a teaching capacity as well.