Description

When the Ignition Switch is moved to the "START" position, battery voltage is applied to the Starter Solenoid. Both Solenoid Windings are energized. The circuit through the Pull-In Winding is completed to ground through the Starter Motor. The windings work together magnetically to pull in and hold in the Plunger. The Plunger moves the Shift Lever. This action causes the Starter Drive Assembly to rotate as it engages the Flywheel Ring Gear on the Engine. At the same time, the Plunger also closes the Solenoid Switch contacts in the Starter Solenoid. Full battery voltage is then applied directly to the Starter Motor and it cranks the Engine.
As soon as the solenoid switch contacts close, voltage is applied to both ends of the Pull-In Winding. This condition de-energizes the Pull-In Winding. The Hold-In Winding remains energized, however, and its magnetic field is strong enough to hold the Plunger, Shift Lever, and Drive Assembly solenoid switch contacts in place to continue cranking the Engine.
When the Ignition Switch is released from the "START" position, battery voltage is removed from the PPL (6) wire and the Pull-In Winding. With the Pull-In Winding de-energized, the Return Spring causes the Drive Assembly to disengage.