The starter consists of a drive housing and a pole housing and a commutator. An armature and a collector, as well as a brush holder, are placed in the pole and collector housing. The brush holder contains carbon brushes, which are wear parts that are subject to wear, although slowly but constantly. If the brushes are too worn, the starter stops working normally.
A gear drive is located in the front drive housing. When voltage is applied to the starter through the ignition switch, with the help of a traction relay located on the drive housing, the gear moves along the thread to the flywheel ring gear. As soon as the gear reaches the stop of the threaded shaft, it engages with the flywheel. Now the transfer of torque from the starter to the engine is ensured to develop the required number of revolutions. When the engine starts, the gear receives acceleration from it, that is, for some short time it rotates faster than the engine and disengages, due to which the connection between the starter and the engine is broken.
Since a large current is required to start an internal combustion engine, it is necessary to ensure that the wires are connected perfectly as part of maintenance. Corroded contacts should be coated with protective paste.
1 - collector housing
2 - brush holder
3 - set of carbon brushes
4 - ceramic-metal bushing
5 - casing
6 - excitation winding
7 - magnetic starter
8 - ceramic-metal bushing
9 - drive housing
10 - thrust ring
11 - ceramic-metal bushing
12 - gear lever
13 - gear
14 - anchor
15 - body of poles
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