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Fault Diagnosis and Elimination of Starter

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Troubleshooting: starter drive gear and flywheel ring gear due to the engagement is not in place and the phenomenon is called starter "hang teeth", this phenomenon occurs when the individual is due to improper adjustment of the starter caused, but for the use of a longer time Vehicles, causing the reasons for such failures are different.

1. First adjust the starter suction switch (Beijing 2020), to ensure that the starter suction in place (liberation CAl091 and Dongfeng EQ1090, etc. do not adjust).

2. Park the vehicle on a trench or on a flat surface and pad the wheel with a triangle.

3. Start the engine, depress the clutch pedal and hold, slow down the accelerator pedal, so that the engine speed.

4. With the clutch disengaged, close the ignition switch and turn off the engine.

5. Into the car will be opened under a small oil pan, with a chalk under the flywheel in the mark.

6. The above steps 3, 4 and 5 are repeated several times to observe the distribution of the marks on the flywheel. If the marks are evenly distributed, it proves that the starter drive gear and the flywheel drive ring ring are worn excessively and should be renewed. If the distribution of the mark is concentrated, it is proved that the flywheel is unbalanced, and the appropriate counterweight can be added to the corresponding symmetrical part of the mark, so that the flywheel can be slightly balanced in operation and effectively solved Starter drive gear and flywheel ring gear due to local wear and tear so that assembly "hang teeth" phenomenon.

As we all know, the engine starts need external support, car starter is playing this role. Starter battery electrical energy can be converted into mechanical energy, driving the engine flywheel rotation to achieve engine start. In general, the starter uses three components to achieve the entire starting process. A DC motor which introduces a current from the battery and generates a mechanical movement of the drive gear of the starter; a transmission mechanism which engages the drive gear into the flywheel ring gear and is automatically disengaged after the engine is started; and the starter circuit is turned on and off by an electromagnetic switch To control. Among them, the motor is the main part of the starter, its working principle is that we are in junior high school physics in contact with the law of Ampere's energy conversion process based on the power of the conductor in the magnetic field in the role of force. The motor includes necessary armatures, commutators, poles, brushes, bearings and housings.

Common phenomenon:

1. When the starter switch is turned on, the starter rotates at high speed and the engine crankshaft does not react. This phenomenon indicates that the fault occurred in the starter's transmission mechanism, which may be caused by transmission gear or one-way clutch wear.

2. The starter does not work and the drive gear does not rotate. There are many reasons for this phenomenon, such as power line problems, starting switch contact plate ablation and the engine resistance is too large and so on.

3. starter power output is insufficient, can not drive the crankshaft. Excitation coil short-circuit and battery power loss can cause starter power shortage.

4. Starter operation sound harsh. This may be a one-way clutch stuck or improper installation of the starter caused.

5. The starter switch has a "blah" sound, but does not work. Keep the coil broken or serious battery power loss will lead to this phenomenon.

Maintenance recommendations:

The starter is a valuable part of a car and is not easily damaged, but proper use is necessary in order to prolong the service life of the starter. Starter in the process of starting the engine, from the battery into the 300 ~ 400Ah of electricity, so in order to prevent the battery over-current or damage to the phenomenon, the starting time should not exceed 5s; winter prone to start the phenomenon of multiple starts Each start time should not be too long, the start should also be left in the appropriate interval.

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