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Hello, welcome to the online school of automotive engineering. In this video I will explain about the starter system, especially about the starter motor. The engine cannot live on its own because the engine needs a first round of the engine to do the first work cycle, namely the injection, compression, and discharge. Therefore, the engine needs the initial power from the outside
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usually mechanical or electric power. We usually find mechanical power in motorbikes, such as kickstarters,
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or electric power, such as a motor starter. This motor starter is commonly used in modern cars. There are various electric motor starters that are used in cars. Generally, motor starters use magnetic switches that function to move the pinion gear to fly with the ring gear. On the board, I have drawn a conventional type motor starter diagram.
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But the best way is to check first each component and function of this conventional starter motor on the online school channel Tandik Automotive. Okay, now I will explain how to work on this conventional starter motor step by step. The first step is when you insert the key contact and then rotate it to the start position. Or in other words when the starter switch is in the on position.
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At this time, the electricity stored in the battery flows to the ignition switch From the ignition switch flows to the 50 magnetic switch terminal So the blue component, the top part is a magnetic switch From terminal 50 to the second coil
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The first coil is a hold-in coil, then to the ground, so it becomes an electromagnet. The second coil is a fall-in coil, then to terminal C, and will go to ground later, so it becomes an electromagnet too. Both of them have the same electric current direction. We see from left to right, from left to right. So, both of them have the same magnet direction.
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the same direction of the electromagnet's top. This electromagnet will move the plunger, a black component, to the right against the return spring. You can see that the plunger is connected to the drive lever, so that when the plunger moves to the right, the drive lever will move like this. So the top part is to the right, the bottom part is to the left.
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The drive lever is related to the drive mechanism So when the drive lever is pulled up the top part, then the bottom part will push the starter clutch and pinion gear You see here the pinion gear is a little bit in tune with the flywheel Okay Next, the electricity that has just flowed to the pull-in coil
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then flows to the C magnetic switch terminal, down to the field coil, then to the positive brush, then to the armature, from the armature to the negative brush and to the mass. Now you see, in addition to the electromagnetic field that moves the plunger, the coil
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This field coil and also the armature, armature is a cylinder that is connected by a cable so that it becomes an electromagnet too So the field coil and armature both become electromagnets Because of the close distance and the position that is not symmetrical, then the field coil electromagnet
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and armature will reject each other on one side and will pull each other on the other side so that armature will rotate the rotation is connected in the same direction so that it moves the pinion gear this video is continued with the second part with the same title please check on the online school channel TANIK AUTOMOTIF
