Manual starters are devices operated manually, designed for simple operation without requiring expert intervention. The starter includes a button or rotary knob that enables users to turn connected equipment on or off.

Key features of manual starters include:

• Safe and economical operation
• Compact size suitable for diverse applications
• Overload protection for motor safety
• Available with various enclosure options
• Low initial cost compared to other starter types

Note: Manual starters don't break control circuits during power loss, which may cause automatic motor restart when power returns - an important safety consideration for certain applications.

When the engine is activated (via stop/start button or traditional key), an electrical signal is sent to the starter solenoid. This component transmits power from the vehicle's battery to the starter motor.

The electrical current activates both the starter motor and the starter drive (Bendix gear system), which engages the vehicle's flywheel. As the starter motor turns, it cranks the engine to initiate the combustion process in petrol and diesel vehicles.

Once the engine is running properly, the mechanism disconnects the starter motor from the gear and flywheel as the engine no longer requires the electrical spark to maintain operation.