AUTOTECH Kerala

  Starter Motor components & their functions: Animation Armature The armature is an electromagnet, mounted on the drive shaft and bearings for support. It is a laminated soft iron core which is wrapped with numerous conductors loops or windings. Commutator The commutator is a section of the shaft at the rear of the housing on which the brushes run to conduct electricity. The commutator is made up of two plates attached to the axle of the armature. These plates provide the two connections for the coil of the electromagnet. Brushes The brushes run on a section of the commutator at the rear of the housing, making contact with the contacts of the commutator and conducting electricity. Solenoid The solenoid contains of two coils of wire that are wrapped around a moveable core. The solenoid acts as a switch to close the electrical connection and connects the starter motor to the vehicle's battery. Plunger The plunger works by using the connected vehicle battery and the solenoid to pu