1. Starting Switch: The starting switch is the switch that is used to activate the starter motor. When the ignition key is turned to the start position, the starter switch closes, providing electrical power to the starter motor.
2. Solenoid: The solenoid is an electromagnetic device that engages the starter drive with the flywheel of the engine. When the starter switch is activated, the solenoid draws a high current, creating a strong magnetic field. This magnetic field pulls in a plunger, which engages the starter drive with the flywheel.
3. Starter Motor Armature: The starter motor armature is the rotating part of the motor. It consists of a series of electromagnetic coils wound around an iron core. When electrical current flows through the armature coils, it creates a magnetic field. The magnetic field interacts with the magnetic field of the field coils to create torque, which causes the armature to rotate.
4. Field Coils: The field coils are the stationary coils of the starter motor. They are wound around the stator of the motor and create a magnetic field when electrical current flows through them. The magnetic field of the field coils interacts with the magnetic field of the armature to create torque.
5. Drive Pinion: The drive pinion is the part of the starter motor that engages with the flywheel of the engine. It is a gear that is attached to the armature and rotates with it. When the solenoid is engaged, the drive pinion is pushed forward to engage with the flywheel, turning the engine over.
6. Bendex: The bendex is a mechanism that helps the drive pinion engage with the flywheel. It is a helical spring that connects the starter drive to the armature. The bendix allows the drive pinion to move axially to engage with the flywheel.
7. Commutator: The commutator is a part of the armature that is used to reverse the direction of current flow in the armature coils. This is necessary to keep the armature rotating in the same direction. The commutator consists of a series of copper segments that are insulated from each other. The brushes of the starter motor make contact with the commutator to reverse the direction of current flow.
8. Brushes: The brushes are the electrical contacts that make contact with the commutator. They are made of carbon and are held in brushes holders. The brushes carry current to and from the armature coils.
9. Starter Motor Housing: The starter motor housing is the housing that encloses the starter motor components. It is usually made of metal and provides protection for the internal parts of the motor.
