Starter switching circuit
To start an internal combustion engine with forced ignition of the air-fuel mixture, a small electric motor is needed - a starter. In order for the engine to start at all, the starter must rotate it at a speed of at least 300 rpm. In this case, the starter must work flawlessly and the battery must be charged.
The starter consists of pole, drive and collector housings. In the pole and collector housings there is an armature, a collector, and a brush holder. The brush holder contains graphite brushes, the wear part. With severe wear of the graphite brushes, the starter operation is disrupted.
The drive housing houses the gear drive. If the starter receives voltage when the ignition is turned on, then the magnetic switch sitting on the starter housing throws the gear along the worm thread towards the flywheel ring gear and engages it, starting to rotate the engine. As soon as the engine starts, the flywheel, in turn, accelerates and throws the starter gear back.
During start-up, the starter draws a lot of current, therefore, within the framework of maintenance, it is necessary to pay attention to the perfect condition of the cable connections. Corrosion joints should be cleaned and lubricated with technical vaseline.
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