The starter consists of a drive housing, a pole housing, and a collector housing. The pole and collector housings contain the anchor and collector, as well as the brush holder. The brush holder contains carbon brushes, which wear out slowly but constantly. If the brushes are heavily worn, the starter will not be able to operate properly.
The drive gear is located in the front housing of the drive. When voltage is supplied to the starter from the ignition switch, the drive gear moves in the groove with the help of the electromagnetic traction relay, which is located on the starter housing, and engages with the toothed ring of the engine flywheel. When the gear reaches the stop along the axis, it is securely connected to the flywheel. Now the starter can spin the engine to the required speed. When the engine starts, the starter gear is spun by the engine, and for a short time it rotates faster than the starter and disengages from the flywheel, i.e. the connection between the engine and the starter is interrupted.
Since a large current is required for starting, the reliability of the wire connections must be checked as part of the maintenance. Corroded connections must be cleaned and lubricated with protective grease.
Note: If the starter fails, you can purchase a starter that has been reconditioned in a workshop, which works no less reliably than a new one.
[Based on website data MAZbook.ru]