
JFZ2703-010 37N29B-01010 5288083 C3972529 C5590812 5590812 Alternator For Cummins
Applicable models:Cummins
Reference part number:JFZ2703-010 37N29B-01010 5288083 C3972529 C5590812 5590812 2703 5680102 8GS60 K298 37N29B010 37NB-0101 37N29B-01010 4930794 3415691 37N29B01010 37N29B010 37N29B01010 ALQ2702LK ALQ2702UW
| Rated output : | 28V 70A |
| Pulley : | 8pk |
| Size : | 26*26*21 cm single unit inner box |
| Weight : | NET WEIGHT:7.95KG GROSS WEIGHT:8.35KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
| Type : | Acgenerator |
| Specification : | 28V 70A |
| Pulley : | 8PK |
| Brand : | NUO JIN |
| Number : | C3972529 |
| Quality : | Renovate |
| Delivery time : | 10 days |





The installation method of the Cummins 28V generator is similar to that of general Cummins generators. The specific steps and relevant precautions are as follows: Pre-installation Preparation Confirm the Installation Environment: Select a well-ventilated location free of flammable and explosive materials. The ground should be flat and its load-bearing capacity should meet the generator's requirements. Prepare Installation Tools: Prepare necessary tools such as screwdrivers, wrenches, and spirit levels. Inspect the Generator: Check whether the generator and its accessories are intact and ensure they meet the installation requirements. Foundation Installation Place the Generator: Position the generator at the predetermined location and use a spirit level to adjust it to a horizontal state. Secure the Generator: Fix the generator to the foundation with bolts to ensure it is firmly installed. Cable Connection Select Cables: Choose the appropriate cable specification according to the generator's power and power consumption requirements. Connect Cables: Connect the cables to the generator's output terminals, ensuring secure and non-loose connections. Insulation Treatment: Wrap the cable connections with insulating materials to ensure safety. Exhaust Pipe Connection Select Pipes: Choose a suitable exhaust pipe to ensure unobstructed airflow. Connect Pipes: Connect the exhaust pipe to the generator's exhaust port, ensuring a tight and leak-free connection. Fuel System Connection Select the Fuel System: Choose the appropriate fuel system based on the generator model and fuel type. Connect the Fuel System: Connect the fuel system to the generator's fuel inlet, ensuring a secure and leak-free connection. The height difference between the fuel tank liquid level and the fuel transfer pump should be within the specified range. The return oil from the return pipe should be directly discharged back to the fuel tank, and its position should be staggered from the fuel inlet. Other Precautions Ground Protection: The generator housing must be reliably grounded for protection. For generators requiring direct neutral point grounding, the neutral point grounding should be performed by professional personnel, and lightning protection devices should be equipped. Ventilation Requirements: The generator installation location must be well-ventilated. There should be sufficient air inlets at the generator end and good air outlets at the diesel engine end. The area of the air outlet should be more than 1.5 times that of the water tank. Exhaust Requirements: When used indoors, the exhaust pipe must be led outdoors. The pipe diameter must be greater than or equal to that of the muffler's exhaust pipe. The number of elbows in the connected pipeline should not exceed 3 to ensure smooth exhaust. The pipe should be inclined downward by 5-10 degrees to prevent rainwater from entering; if the exhaust pipe is installed vertically upward, a rain cover must be added. When installing the Cummins 28V generator, the following key precautions should be focused on, covering critical aspects such as safety, installation specifications, and system adaptation to ensure the stable operation of the equipment: I. Safe Operation Specifications Power-off Protection: Before performing any wiring or pipeline connection operations, be sure to cut off the relevant power supply (such as the starting battery power) to avoid short circuits or electric shock accidents; it is prohibited to start the generator arbitrarily during the installation process, and professional personnel must be present during commissioning. Fire and Explosion Prevention: The installation environment should be away from flammable and explosive materials (such as gasoline and diesel storage tanks, combustible gas sources). Smoking or using open flames in the installation area is strictly prohibited; if installed indoors, dry powder or carbon dioxide fire-fighting equipment should be equipped to prevent fires caused by fuel leakage. High-temperature Burn Prevention: Components such as the exhaust pipe and engine block reach extremely high temperatures when the generator is running. A sufficient safe distance should be reserved during installation to avoid touching high-temperature components; it is recommended to wear high-temperature resistant gloves when connecting the exhaust pipe. II. Installation Environment and Foundation Requirements Environment Adaptation: Select a dry, well-ventilated location free of corrosive gases to prevent short circuits of electrical components caused by humid environments or damage to the generator shell and internal parts by corrosive gases; at the same time, avoid installation in dusty areas to prevent dust from entering the equipment and affecting operation. Stable Foundation: The installation ground should be flat and its load-bearing capacity should meet the requirements (in line with the rated weight of the generator) to avoid equipment displacement due to ground subsidence or vibration; high-strength fixing bolts should be used. After tightening, check for no looseness. If necessary, install shockproof pads to reduce operational vibration. Level Calibration: Use a spirit level to strictly adjust the generator to a horizontal state. Excessive horizontal deviation will cause uneven force on internal parts, accelerate wear, and affect the fuel supply stability of the fuel system. III. Key Points for System Connection Cable Connection Specifications The cable specification must match the generator power. Insufficient cross-sectional area will cause cable heating, increased losses, and even fires; it is recommended to use copper-core cables that meet national standards, and the length should be as short as possible to reduce voltage drop. When wiring, distinguish between positive and negative electrodes and various output terminals to avoid reverse connection; the connection points should be polished clean to remove the oxide layer to ensure good contact, compressed with a crimping tool, and then wrapped with insulation materials (insulating sleeves or professional insulating tape are preferred) to prevent leakage or short circuits. Pipeline Connection Sealing Before connecting the fuel pipeline, check for damage and aging of the pipeline. Sealing rings should be installed at the joints and fixed firmly with clamps. After connection, a short fuel supply test (without starting the machine) can be performed to check for leakage, avoiding fuel waste or fires. The exhaust pipe connection must be tight without air leakage. High-temperature resistant sealant can be used at the interface to enhance sealing; strictly set the pipeline inclination angle or rain cover according to requirements to prevent rainwater backflow from damaging the engine. Grounding and Lightning Protection The generator shell must be reliably grounded for protection. The grounding resistance should meet relevant standards (usually not exceeding 4Ω) to prevent electric shock accidents caused by live shells when the equipment leaks electricity. For generators requiring direct neutral point grounding, the operation must be performed by professional personnel. It is strictly prohibited to use the municipal power grounding device as a substitute; lightning protection devices should be installed for outdoor installation to avoid damage to the electrical control system caused by lightning strikes. IV. System Adaptation and Parameter Calibration Component and Model Matching: The selected accessories such as cables, fuel pipelines, exhaust pipes, and seals must be adapted to the specific generator model. For example, the diameter of the exhaust pipe should not be smaller than the diameter of the muffler outlet, and the fuel pipeline should be resistant to corrosion by corresponding fuels such as diesel. Fuel System Adaptation: The height difference between the fuel supply tank and the fuel transfer pump must strictly follow the requirements of the equipment manual. Excessively high or low height will affect the fuel supply pressure, leading to difficulty in engine startup or unstable operation; the return pipe should be separately connected to the fuel tank and kept a certain distance from the fuel inlet to avoid the high temperature of return oil affecting the quality of incoming oil. V. Pre-requirements for Commissioning and Subsequent Maintenance Comprehensive Inspection After Installation: After completing the installation, inspect the bolt fixing status, cable insulation condition, pipeline tightness, grounding continuity, etc., one by one. Only after confirming no problems can commissioning be carried out. Phased Commissioning: During the first startup, run it under no-load condition for 30 minutes to observe whether the generator speed and voltage output are stable (the voltage should meet the rated range of the equipment during normal operation) and check for abnormal noise, vibration, or leakage; after the no-load operation is normal, conduct load commissioning, gradually increase the load to the rated value, and monitor various parameters. Reserve Maintenance Space: Sufficient maintenance space should be reserved around the generator during installation (it is usually recommended that the space on both sides and the rear is not less than 0.5 meters, and the space in the front is not less than 1 meter) to facilitate subsequent inspection and repair, parts replacement, and equipment cleaning. References:Based on the content, it may be compiled by synthesizing relevant installation manuals, technical documents of Cummins generators, as well as knowledge in professional automotive maintenance or generator installation. If you want to obtain more authoritative information about the installation of Cummins generators, it is recommended to refer to the official product manuals released by Cummins or consult professional technical support personnel of Cummins.

