(1) Weak lighting and insufficient volume

Fault phenomenon: the light is weak, the horn buzzes, the volume is insufficient, the horn volume is normal after the engine is running; When the throttle is slammed, the brightness of the light increases instantaneously. At idle, the horn volume changes little and the light is still weak. Cause analysis: At the battery deficit point, the pair density of electrolytic liquid phase may be reduced to less than 1.15. The electrolyte contains metal debris or dirt, and the active substance on the plate.

Fault phenomenon: the light is weak, the horn buzzes, the volume is insufficient, the horn volume is normal after the engine is running; When the throttle is slammed, the brightness of the light increases instantaneously. At idle, the horn volume changes little and the light is still weak.

Cause analysis: At the battery deficit point, the pair density of electrolytic liquid phase may be reduced to less than 1.15. The electrolyte contains metal debris or dirt, and the active substances on the plate fall off more. Battery cable pile heads are dirty or in poor contact, screws are loose, and iron connections are poor.

Check the circuit for leakage, short circuit or poor contact.

Elimination method: Thoroughly check and clean the battery, add or replace the electrolyte and replenish the charge and other maintenance operations. The liquid pair density of each cell should be consistent. Check whether each cell electrolyte is clean, whether the active substance falls off seriously, if necessary, replace the electrolyte, clean the battery plate, and re-charge. After confirming that there is no obvious effect after charging, the new battery should be replaced in time. The liquid phase pair density of the new battery is 1.28.

(2) After the engine starts, the charging indicator is not extinguished

Fault phenomenon: the charging indicator lights up after the engine starts or does not go out at all. Cause analysis: 1. The battery wires are connected in opposite directions, and the positive and negative terminals are connected incorrectly. 2. The generator does not generate electricity. Brush is too short, adjustment is out of control, control platinum contact ablation. Dc motor copper head (rotor rectifier) is too dirty, resulting in short circuit phenomenon. 3. Alternator output wire terminal cable.

Fault phenomenon: the charging indicator lights up after the engine starts or does not go out at all.

Reason analysis:

1. The battery wires are connected in opposite directions, and the positive and negative terminals are connected to the wrong wires.

2. The generator does not generate electricity. Brush is too short, adjustment is out of control, control platinum contact ablation. Dc motor copper head (rotor rectifier) is too dirty, resulting in short circuit phenomenon.

3. The alternator output wire terminal is loose or falls off, the transistor loses its function or breakdown, and the power generation is obviously insufficient.

Elimination method:

1. Connect the battery wire and the cable according to the instructions.

2. The DC generator should replace the brush once when the vehicle is running 10,000 km, polish the platinum contact with platinum sand strip, check the regulator, and clean the rotor copper head. If necessary, replace the damaged parts and measure the power generation.

3. Check whether the conductor of the alternator is firm, disassemble and replace the brush or damaged parts if necessary, and measure the power generation.

(3) The electrolyte bubbling phenomenon

Fault phenomenon: the charging indicator lights up after the engine starts or does not go out at all. Cause analysis: 1. The battery wires are connected in opposite directions, and the positive and negative terminals are connected incorrectly. 2. The generator does not generate electricity. Brush is too short, adjustment is out of control, control platinum contact ablation. Dc motor copper head (rotor rectifier) is too dirty, resulting in short circuit phenomenon. 3. Alternator output wire terminal cable

Fault phenomenon: the charging indicator lights up after the engine starts or does not go out at all.

Reason analysis:

1. The battery wires are connected in opposite directions, and the positive and negative terminals are connected to the wrong wires.

2. The generator does not generate electricity. Brush is too short, adjustment is out of control, control platinum contact ablation. Dc motor copper head (rotor rectifier) is too dirty, resulting in short circuit phenomenon.

3. The alternator output wire terminal is loose or falls off, the transistor loses its function or breakdown, and the power generation is obviously insufficient.

Elimination method:

1. Connect the battery wire and the cable according to the instructions.

2. The DC generator should replace the brush once when the vehicle is running 10,000 km, polish the platinum contact with platinum sand strip, check the regulator, and clean the rotor copper head. If necessary, replace the damaged parts and measure the power generation.

3. Check whether the conductor of the alternator is firm, disassemble and replace the brush or damaged parts if necessary, and measure the power generation.

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