OCR Text |
Show Starter Circuit Quite Simple in Construction Tlu starter circuit Is as simple as a house bell circuit. The current Is supplied by the storage battery through a heavy cable, the circuit being be-ing closed by the starter switch. Instead In-stead of a return wire from starter to battery, the return current Hows through the car frame, one terminal of both battery ' and starter being grounded. On most cars the pinion on the starter motor meshes with teeth cut In 'yiiQi Y fryy7K STARTER J j iAITEBY uwr,.- Starter Circuit Is Simple. the flywheel, while the starter shaft on which the pinion Is mounted Is spirally spiral-ly cot. When the starter pedal Is depressed de-pressed the starter motor begins to spin and thus screws the pinion gear (which Is automatically prevented from rotating) out to the end of the shaft and Into mesh with teeth on the flywheel. As soon as engine starts, the flywheel runs faster, screwing the pinion pin-ion back out of mesh. Ordinary starting troubles are weak battery, short circuit In cuble or starter switch, dirty switch, loose connections, brushes worn, or commutator commu-tator dirty. Dirt or gummed oil on the starter shaft may prevent the pinion from meshing. Popular Science Monthly. |