Generator 3701100F0004 is suitable for Honor 580

The installation method of the 14V generator for Dongfeng Fengguang Rongyao 580 is as follows:

Preparation work: Ensure that the vehicle is parked on a safe and flat ground, the engine is turned off and cooled down, and the negative cable of the battery is disconnected to prevent electric shock and short - circuit. Prepare the required tools, such as wrenches and screwdrivers.

Remove the old generator: Open the engine hood and locate the generator. Use a wrench to loosen the belt tensioner and remove the generator belt. Then, remove the wires connected to the generator, remembering the position and connection method of each wire for correct installation later. After that, use the appropriate tools to remove the bolts and nuts fixing the generator and take out the old generator.

Clean the installation position: Remove the dust, oil stains, and debris from the installation part to ensure that the new generator can be installed firmly and has good contact.

Install the new generator: Place the new generator in the installation position and initially fix it with bolts and nuts, but do not tighten them completely to facilitate subsequent adjustment.

Connect the wires: Connect the wires to the corresponding interfaces of the new generator according to the position and method remembered before, ensuring that the connections are firm and there is no looseness.

Install the belt: Put the belt on the pulley of the generator and adjust the belt tensioner to make the belt have an appropriate tension. The belt tension should be moderate. If it is too loose, the belt will slip, affecting the power generation efficiency; if it is too tight, it will accelerate the wear of the belt and the generator bearing.

Check and tighten: Check whether the position of the generator is correct and whether the belt tension is appropriate, and make fine - adjustments if necessary. Then, tighten the fixing bolts and nuts completely to ensure that the generator is installed firmly.

Restore the battery connection: Re - connect the negative cable of the battery.

Test the generator: Start the vehicle and check whether the generator is working properly, including whether the charging indicator light is off and whether the voltage is normal. You can use a multimeter to measure the output voltage of the generator, which should usually be between 13.5 - 14.5V.

I. Core Precautions Before Installation

1. Priority to Safety Protection

• The negative battery cable must be disconnected, and the engine must be allowed to cool down completely before operation to prevent electric shock, scalding, or accidental engine startup.

• Wear protective equipment such as insulated gloves and goggles to avoid damage to engine compartment components or personal scratches caused by tool slippage; keep a safe distance from rotating parts and high-temperature areas in the engine compartment during operation.

2. Preparation of Components and Tools

• Confirm that the new generator model is compatible with the vehicle (it must match the 14V specification of Dongfeng Fengguang Rongyao 580, and verify parameters such as the generator's mounting holes and terminal types). Check that the generator has no external damage, no rust on the terminals, and that the rotor rotates flexibly without jamming or abnormal noise.

• Prepare matching tools (such as socket wrenches of corresponding specifications, special tools for belt tensioners, etc.) to prevent bolt thread damage or component deformation caused by ill-fitting tools.

• If replacing an old generator, clean oil stains and rust from the surface of the mounting bracket; apply rust inhibitor if necessary. At the same time, check for bracket deformation to ensure a tight fit during installation.

II. Operational Specifications During Installation

1. Details of Mechanical Installation

• Fixing bolts must be tightened to the torque specified in the vehicle maintenance manual (usually 20-30N・m for generator fixing bolts of Dongfeng Fengguang models, with specific values subject to the model manual). Loose bolts may cause generator vibration and displacement, while over-tightening may damage the bracket or generator housing.

• When installing the belt, strictly fit it along the original transmission path to avoid reverse installation or misalignment; the tension must be moderate. Pressing the middle of the belt by hand should result in a deflection of 10-15mm. Excessive looseness may cause slipping and affect power generation efficiency, while excessive tightness will accelerate the wear of generator bearings and the belt. If reusing the old belt, check for cracks, aging, and other damage; replace it if necessary.

• Ensure that the generator's heat dissipation area is free of obstacles to guarantee heat dissipation efficiency and prevent generator overheating failures due to poor heat dissipation.

2. Requirements for Electrical Connections

• Before wiring, check that the insulation layer of the wires is free of damage and aging, and that the terminals are clean and free of oxidation. If necessary, gently polish the terminal surfaces with sandpaper to improve conductivity; clearly distinguish the functions of each terminal to avoid incorrect wiring.

• When wiring, connect secondary circuits first, and the main power circuit (such as the thick wire terminal) last. All connections must be firmly tightened to prevent overheating and burning caused by looseness; for plug-in connections, ensure the buckle is fully locked to avoid poor contact.

• Never directly connect the generator circuit without disconnecting the battery, as this may cause short circuits and damage electrical components such as the generator and vehicle ECU.

III. Post-Installation Inspection and Debugging

1. Basic Inspection

• Before reconnecting the negative battery cable, reconfirm that all bolts and plugs are properly installed, the belt is correctly positioned without deviation, and there are no leftover tools or debris in the engine compartment.

• After starting the engine, observe whether the charging indicator light on the instrument panel turns off normally (if it remains on, there may be incorrect wiring, generator failure, or belt slipping); listen for abnormal noises from the generator (such as bearing noise, belt friction noise) during idle operation.

2. Performance Testing

• Use a multimeter to measure the generator output voltage. Normally, the voltage should be 13.5-14.5V at idle, and stabilize at 13.8-14.2V when accelerating to around 2000rpm. Deviations from this range may indicate a regulator failure or wiring issue, which requires prompt investigation.

• Test the working status of various vehicle electrical equipment (such as vehicle lights, air conditioning, audio, etc.) and observe whether the voltage is stable. If the voltage fluctuates significantly when high-power equipment is turned on, check the belt tension or generator performance.

• After running for 5-10 minutes, check the temperature of the generator housing. If abnormal overheating occurs (unable to touch), stop the engine immediately for inspection to eliminate installation or component failures.

IV. Special Cases and Prohibitions

• If problems such as bracket deformation or belt aging/cracking are found during installation, repair or replace the relevant components first before continuing the installation to avoid potential safety hazards.

• It is prohibited to touch the two generator terminals simultaneously with metal tools to prevent short circuits; it is also prohibited to disassemble circuits or the belt while the generator is running.

• If you are unfamiliar with the operation process or cannot resolve abnormalities after installation, it is recommended to contact professional maintenance personnel of Dongfeng Fengguang in a timely manner to avoid more serious failures caused by improper disassembly.

References：This passage mainly focuses on the precautions for installing the 14V generator of Dongfeng Fengguang Rongyao 580. Judging from the content, it may have been compiled by integrating information from multiple sources, such as automobile maintenance manuals, professional automotive repair websites, and the practical experience of automotive maintenance technicians. Although similar content about automobile generator installation can be found on websites like Autohome and PCauto as mentioned in the context, it cannot be confirmed that this passage is directly sourced from these websites.