Altemator 373002M417 37300-2M417 373002M417.373002M420 ALV4128BS ALV9128BS 2715559.2724600 37300-2M417 373002M417 FOR Modern Accord, Kia K5

The following are the general installation steps for a modern 12V generator:Preparation WorkTool Preparation: Prepare common tools such as socket wrenches, torque wrenches, and any special tools that may be needed for generator installation.Vehicle Preparation: Park the vehicle on a flat, solid surface, engage the handbrake, and place the transmission in neutral. Lift the vehicle using a jack or lift, and ensure it is securely supported on safety stands to facilitate the operation.Component Inspection: Check whether the new generator matches the vehicle model, inspect its appearance for damage, and ensure the generator is in good condition.Disconnect Power Supply: Disconnect the negative terminal of the vehicle's battery to prevent short circuits and accidental electric shocks during installation.Remove the old generator •  Loosen the generator belt: Use a wrench to loosen the belt tensioner, then remove the belt.  •  Disconnect the connecting wires: Carefully disconnect the wires connected to the generator, and remember the position and connection method of each wire for correct installation later.  •  Remove the fixing bolts: Use a socket wrench or open-end wrench to loosen the fixing bolts and nuts of the generator, and remove the old generator from the engine.Clean the installation location: Remove dust, oil stains, and debris from the installation site to ensure that the new generator can be installed securely and with good contact.  Install the new generator •  Place the generator: Carefully place the new generator in the installation location.  •  Preliminary fixing: Use bolts and nuts to initially secure the generator, but do not fully tighten them to allow for subsequent position adjustment.Connecting wires: According to the positions and methods remembered earlier, connect the wires to the corresponding interfaces of the new generator, ensuring the connections are firm and not loose. Common wiring methods are as follows: "+" (positive) terminal: Connect to the positive pole of the battery and the positive pole of the load."-" (negative) terminal: Connect to the negative pole of the battery and the vehicle body ground."F" (excitation) terminal: Connect to the regulator or external power supply."L" (indicator light) terminal: Connect to the vehicle instrument panel to display the power generation status.Install the belt: Fit the belt accurately onto the generator's pulley and adjust the tensioner to achieve moderate belt tension. Excessively high belt tension may cause premature wear of the belt, while excessively low tension may lead to belt slippage, affecting power generation efficiency. Adjust and fasten: Check if the generator is in the correct position and if the belt tension is appropriate; make fine adjustments if necessary. After confirmation, use a torque wrench to tighten the fixing bolts to the specified torque to ensure the generator is securely installed. Restore power: Reconnect the negative terminal of the vehicle's battery. Test the generator: Start the engine and let it idle. Use a multimeter to measure the voltage at the battery terminals, which should be between 13.5-14.5 volts. Turn on electrical devices such as headlights, air conditioning, and fans; the voltage should remain above 13 volts to ensure the generator is working properly.

When installing a modern 12V generator, in addition to following the correct steps, there are the following precautions to note: •  Safe Operation: During the entire installation process, be sure to first disconnect the negative terminal of the vehicle's battery to prevent electric shock accidents during operation and avoid damage to electrical equipment due to short circuits. Use insulated tools during operation to prevent the metal parts of the tools from touching different wires or terminals at the same time, which may cause a short circuit.  •  Component Inspection and Matching: Before installation, carefully check the appearance of the new generator for damage to ensure it functions properly. At the same time, it is essential to ensure that the model and specifications of the new generator are completely compatible with the vehicle; otherwise, incompatibility issues may arise, affecting the normal operation of the generator.Wiring Precautions: •  Correctly identify the terminals: Clearly understand the markings and functions of each terminal of the generator, such as "+" (positive), "-" (negative), "F" (field), "L" (indicator light), etc., and connect them according to the corresponding connection methods. For example, the "+" terminal should be connected to the positive pole of the battery and the positive pole of the load, and the "-" terminal should be connected to the negative pole of the battery and the vehicle body ground, etc.  •  Ensure firm wiring: Each wire must be firmly connected to the corresponding terminal to avoid loosening. Otherwise, it may lead to poor contact, causing problems such as unstable charging of the generator and flickering of the charging indicator. After wiring, you can gently pull the wire to check if the connection is secure.Pay attention to the wiring order: Generally, first connect the positive wire of the battery, then connect the field wire, ground wire, charging indicator wire, etc. It is necessary to strictly follow the correct order for wiring. An incorrect wiring order may cause the generator to fail to work properly, or even damage the generator or other electrical equipment.  •  Ensure proper insulation treatment: For exposed parts of the wires, use insulating tape to wrap them to prevent electric leakage and avoid safety accidents.Key points for belt installation: When installing the belt, ensure that it is accurately fitted onto the generator's pulley and other related pulleys, and adjust the tensioner to achieve moderate belt tension. You can press the middle part of the belt with your finger to check its tightness; generally, it is appropriate if there is a certain elasticity when pressed without being excessively loose or tight. Excessive belt tension can easily lead to premature wear of the belt and also increase the load on components such as the generator bearings; insufficient tension may cause the belt to slip, affecting power generation efficiency.Installation and Fixation: When installing the generator, handle it gently to avoid colliding with the generator's casing or surrounding parts, which could cause damage. After placing the generator in the installation position and performing initial fixation, check if the generator is in the correct position to ensure there is sufficient space between it and surrounding components to prevent interference. Then, use a torque wrench to tighten the fixing bolts according to the specified torque to ensure the generator is securely installed.  •  Post-Installation Inspection: After installation, carefully check whether all wiring connections are correct and secure, whether the belt is properly installed with appropriate tension, and whether the generator is reliably fixed. Once confirmed correct, reconnect the negative terminal of the vehicle's battery. Start the engine, let it idle, observe if the charging indicator light on the instrument panel turns off normally, and at the same time use a multimeter to measure the voltage at the battery terminals to check if the generator is generating electricity normally and if the voltage is within the specified range.

References：The content you mentioned regarding the installation precautions for modern 12V generators mainly refers to the following materials: • Autohome: The article What are the steps and precautions for generator wiring? mentions that before installing a generator, it is necessary to confirm the model matching, check the appearance, disconnect the negative pole of the battery during installation, and pay attention to the order, firmness, and insulation of the wiring. In addition, How to correctly install a car generator? also contains relevant content about pre-installation preparations, installation steps, and post-installation testing, which provides a reference for sorting out the precautions.Pacific Auto Network: How to Install a Car Alternator describes the specific steps for installing a car alternator, including preparation work, removing the old alternator, installing the new alternator, connecting wires, installing the belt, etc. It also mentions precautions such as belt tension adjustment and post-installation inspection. How to Correctly Wire a 12V Alternator explains the terminal markings, functions, and wiring methods of a 12V alternator, providing a basis for the precautions in alternator wiring.  •  Auto Master: Hyundai Alternator Wiring Diagram_Information mentions the operating steps for installing an alternator and some precautions during the operation, such as disconnecting the power supply, handling gently, and checking the circuits.