Installation Method for Weichai 28V Generator

Pre-installation Preparation

• Tool Preparation: Prepare tools such as wrenches, screwdrivers, and spirit levels.

• Understand Generator Parameters: Fully grasp the generator's model, power, voltage and other parameters to ensure it matches the vehicle or application scenario.

• Equipment Inspection: Check that the generator and its accessories are intact and all components are complete.

• Select Installation Location: Choose a flat, stable, and well-ventilated area close to the load center, with convenient wire access and unobstructed surrounding roads. Avoid locations downwind of pollution sources and areas prone to water accumulation.

Installation Steps

1. Fix the Generator: Place the generator at the installation position, adjust it to a horizontal state with a spirit level, then firmly fix it to the foundation using bolts or other fasteners to prevent movement or vibration during operation.

2. Connect Fuel Pipes: According to the generator's fuel type, connect the corresponding fuel pipes, ensuring tight connections with no leakage.

3. Connect Exhaust Pipes: In accordance with the generator's exhaust requirements, connect appropriate exhaust pipes. For generator sets used indoors, the exhaust pipe must be led outdoors, with a diameter equal to the muffler's exhaust port diameter. The number of elbows in the connected pipeline should not exceed 3 to ensure smooth exhaust. If the exhaust pipe is installed vertically upward, a rain cover must be added.

4. Connect Power Lines: Correctly connect the power lines according to the generator's electrical wiring diagram, ensuring secure and error-free connections. The grounding wire connection point is generally at the end of the diesel generator set's chassis, and the grounding wire must be connected to a proper grounding location.

5. Install Drive Belt (if applicable): For belt-driven generators, install the belt on the generator pulley and drive pulley, then adjust the belt tension. Normally, pressing the midpoint of the belt between the two pulleys with 15 kg of force should result in a 10-15mm deflection.

6. Check Fluids: According to the generator's operation manual, inspect and add an appropriate amount of engine oil and coolant to ensure sufficient fluid supply for normal operation.

Post-installation Inspection

1. Startup Test: After completing all installation steps, connect the negative battery terminal, start the generator, and check if it starts normally, operates stably, and has no abnormal noise or vibration.

2. Voltage Test: Use a multimeter to measure the generator's output voltage. At idle speed, the operating voltage of the 28V system generator should be ≥26V to ensure normal voltage output.

• Core Conclusion: The installation should focus on ensuring firm foundation fixing, pipeline sealing, electrical safety, and parameter matching to avoid equipment failures, safety hazards, or abnormal performance caused by improper operation.

• Basic Installation Precautions

• The installation location must be flat and stable, away from flammable, explosive, and corrosive substances, and ensure good ventilation for heat dissipation.

• The levelness of the generator should be calibrated with a level gauge, and the fixing bolts should be tightened according to the manufacturer's specified torque to prevent severe vibration during operation.

• The installation area should have reserved maintenance space for subsequent maintenance, oil filling, and component replacement.

• Pipeline Connection Precautions

• Before connecting the fuel pipeline, clean the impurities at the interface, seal the connection with a sealant, and conduct a pressure test after installation to ensure there is no leakage.

• When installing the exhaust pipeline, maintain a downward slope (the outdoor end is slightly lower) to avoid condensed water flowing back and damaging the engine, and the interface should be tightly sealed to prevent exhaust gas leakage.

• The exhaust pipeline installed indoors must be extended outdoors and is prohibited from sharing with other exhaust pipes to prevent exhaust gas backflow and cause safety accidents.

• Electrical Connection Precautions

• Before wiring, disconnect all power sources, and strictly operate according to the electrical wiring diagram, distinguishing the positive and negative poles and each control line to avoid wrong or missed connections.

• The cross - section of the power cord should match the output power of the generator, the wiring terminals should be firmly fastened, and wrapped with insulating tape to prevent looseness or short - circuit.

• The grounding wire must be reliably connected, and the grounding resistance should meet the specification (generally not more than 4Ω) to avoid the risk of electric shock or equipment damage.

• Transmission and Oil - Liquid Precautions

• The belt tension should be adjusted accurately. Too tight a belt can easily lead to bearing wear and belt breakage, while too loose a belt will cause slipping and rotation loss, affecting the power generation efficiency.

• The engine oil and coolant should be of the type recommended by the manufacturer, and the filling amount should be between the specified ranges on the scale, not too much or too little.

• After filling the oil - liquid, check whether there is any leakage at each seal, and confirm that the oil - liquid circulation is normal before starting.

• Starting and Testing Precautions

• Before the first start, manually turn the crankshaft to confirm there is no jamming, and check whether all connection parts are firm.

• After starting, let it run at idle speed for 3 - 5 minutes, observe the operation status, and gradually load it only when there is no abnormal noise or vibration.

• The voltage test should be carried out under different loads to ensure that the output voltage is stable within the specified range. If there is an abnormality, stop the machine immediately to troubleshoot the fault.

References：The "passage" you mentioned is not clearly given. However, based on the previous conversation, it is speculated that you may be asking about the source of the "installation precautions for Weichai 28V generators".

From the search results, the content of the installation precautions for Weichai generators is scattered in multiple websites and documents. For example, the website of Shandong Yibo Power Equipment Co., Ltd. (sdybpower.com), PCauto.com.cn, Jinchutou.com, Zuochuanheiye.b2b168.com, etc. all have relevant content introductions. This content is mainly summarized based on the installation specifications of Weichai generator sets, industry standards, and actual installation experience, and there is no specific unified official document as the sole source.