Electrical System for Heavy Duty and Construction Equipment

Heavy-duty equipment and trucks' primary electrical system components include the alternator, battery, and starter. The alternator provides power to the vehicle when it's running, while the battery supplies energy to start the engine and powers devices when the engine is off.

The starter or cranking motor uses electrical energy to turn the engine over and initiate the combustion process necessary for the engine to run. American trucks typically use a 12-volt system, whereas European trucks, or "Semi Tractors," often use a 24-volt system, sometimes combining 12-volt lighting with 24-volt starting through a Series/Parallel Solenoid. 

Preventive maintenance is essential for heavy-duty vehicles and construction equipment. This includes inspecting and cleaning battery cables, checking for loose plugs and wires, and ensuring all lights are turned off when the vehicle isn't running. A preventive maintenance plan can help identify and fix potential issues before they escalate into major problems.