A maintenance technician keeps buildings and machines running by doing a bit of everything: electrical, plumbing, HVAC, mechanical repair, carpentry and basic welding. The core idea is simple. Most breakdowns have a cause you can find by working step by step, and most expensive failures can be prevented with routine inspection. This roadmap takes you from safe tool use and basic electrical and mechanical theory, to diagnosing faults on your own, to running a preventive maintenance program, and finally to leading a team or specializing. Everything here uses free resources, and you build skill b
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Every stage from beginner to expert, with lessons, practice drills, projects, interview questions and free resources. Free with a Rolearch account.
Stage 1 of 4 · about 10 weeks
Work safely and use hand and power tools correctly. Read a tape measure, a level and a multimeter. Learn basic electrical theory (Ohm's law: V = I x R), basic plumbing (supply, drain, vent), and how belts, bearings and motors work. Complete the free OSHA 10-hour general industry or equivalent safety awareness material and practice simple repairs such as replacing a faucet, outlet, filter or door hardware.
Safety Awareness and PPE
Maintenance is one of the jobs where small mistakes hurt people. Employers hire first for people who work safely, so this is your strongest early signal.
Hand and Power Tools
Every repair depends on using the right tool correctly. Good tool habits make you faster, safer and less likely to damage equipment.
Measuring and Reading Instruments
Repairs fail when measurements are guessed. Reading a tape, level and multimeter correctly is how you check your work and diagnose problems.
Basic Electrical Theory and Simple Repairs
Electrical faults are the most common call-outs and the most dangerous. Ohm's law gives you a way to reason about every circuit rather than memorize fixes.
Basic Plumbing and Everyday Repairs
Leaks and clogs are daily maintenance calls. Understanding how water moves lets you fix the cause, not just the drip.
Mechanical Basics: Belts, Bearings and Motors
Most equipment you will maintain turns on these three parts. Knowing how they work tells you what a noise, heat or vibration means.
Then 3 more stages (about 90 weeks in all) with lessons, drills, projects, 10 interview questions with strong answers and free resources.