Final answer:
The armature shaft is linked to the starter gear, which engages with the flywheel ring gear to start the engine. This process is critical in the operation of combustion engines.
Step-by-step explanation:
The armature shaft carries the starter gear that meshes with the engine flywheel ring gear. When the ignition is activated, the starter motor turns the armature shaft, and the starter gear engages the ring gear on the flywheel, allowing the engine to crank over and start. The process involves precision engineering to ensure that the gears mesh smoothly and reliably every time the engine needs to be started.