Reduction Type

GENERAL DESCRIPTION





CRANKING CIRCUIT
The cranking circuit consists of the battery, starting motor, ignition switch, and related electrical wiring. These components are connected electrically as shown in below figure. Only the starting motor will be covered in this portion.

STARTING MOTOR
The starting motor consists of parts shown in below and has permanent magnets mounted in starting motor yoke (frame).
The magnetic switch assembly and parts in the starting motor are enclosed in the housings so that they will be protected against possible dirt and water splash.
In the circuit shown in above figure, the magnetic (motor) switch coils are magnetized when the ignition switch is closed.The resulting plunger and pinion drive lever movement causes the pinion to engage the engine flywheel gear and the magnetic switch main contacts to close, and cranking takes place. When the engine starts, the pinion over-running clutch protects the armature from excessive speed until the switch is opened, at which time the return spring causes the pinion to disengage.





NOTE: Make sure to apply grease before assembly where so indicated in the figure above.