
28V 75 A ALTERNATOR JFZ2760 FOR DEUTZ 3701010-687
Applicable models:DEUTZ SDLG LG956L
Reference part number:4110001007015 JFZ275-0303 JFZ270-0300/3701010-D473 JFZ2980DC1J 3701010-687
| Rated output : | 28V 75A |
| Pulley : | 10PK |
| Size : | 26*26*21 single unit inner box |
| Weight : | net weight:6.5KG gross weight:6.9KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
| Type : | ACgenerator Alternator |
| Specification : | 28V 75A |
| Pulley : | 10pk |
| Brand : | nuojin |
| Number : | 3701010-687 |
| Quality : | Remanufacture |
| Delivery time : | 10 day |

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Installation Method for Deutz 28V Generator
Pre-installation Preparation
Tool Preparation: Prepare tools such as wrenches, screwdrivers, spirit levels, and dial indicators.
Understand Parameters: Clarify the generator's model, power, voltage and other parameters to ensure they match the application scenario.
Equipment Inspection: Check that the generator and its accessories are intact and all components are complete.
Select Location: Choose a flat, stable, and well-ventilated area close to the load center for convenient wiring. Ensure surrounding roads are unobstructed, keep away from flammable, explosive, and corrosive substances, and avoid locations downwind of pollution sources and areas prone to water accumulation.
Installation Steps
Fix the Generator: Place the generator at the installation position, adjust it to a horizontal state with a spirit level, and firmly fix it to the foundation using fasteners such as 8.8-grade bolts. Ensure the base pads are compact and the frame is not deformed to prevent movement or vibration during operation.
Connect the Transmission Device:
For single-bearing generators: Ensure alignment and coaxiality with the engine during installation. First, insert two cylindrical pins into two symmetrical threaded holes on the flywheel, slide the generator's flexible drive plate into the engine's flywheel spigot, adjust the perpendicularity and coaxiality of the joint surface between the diesel engine flywheel and the flange shell generator connection to control the error within 0.1mm, then fix the flexible drive plate and connecting flange to the engine's flywheel and flywheel shell with bolts.
For double-bearing generators: Prefer to use elastic couplings. Align the engine positioning spigot with the generator spigot, add gaskets on the generator base plane to adjust alignment if necessary, ensure the coaxiality tolerance is ≤0.1mm, then fix the generator to the unit base with bolts.
Connect Fuel Pipes: According to the generator's fuel type, connect the corresponding fuel pipes to ensure tight connections with no leakage. Clean impurities at the interface before connection, seal with sealant, and conduct a pressure test after installation.
Connect Exhaust Pipes: Connect appropriate exhaust pipes according to the generator's exhaust requirements. For indoor use, the exhaust pipe must be led outdoors, with a diameter equal to the muffler's exhaust port diameter. The number of pipe elbows should not exceed 3 to ensure smooth exhaust. If the exhaust pipe is installed vertically upward, a rain cover must be added.
Connect Power Lines: Correctly connect the power lines according to the generator's electrical wiring diagram to ensure secure and error-free connections. The grounding wire connection point is generally at the end of the diesel generator's chassis, and the grounding wire must be connected to a proper grounding location with a grounding resistance generally not exceeding 4Ω.
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 to meet the requirements of normal operation.
Post-installation Inspection
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.
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.
Installation Precautions for Deutz 28V Generator
1. Mechanical Installation Precautions
Fixing bolts must be of 8.8-grade or higher strength, tightened to the torque specified by the manufacturer to prevent loosening due to vibration during operation.
The coaxiality error between the generator and the engine must be strictly controlled within 0.1mm. For single-bearing models, focus on calibrating the perpendicularity of the joint surface between the flywheel and the drive plate; for double-bearing models, prioritize alignment using elastic couplings.
A maintenance space of ≥50cm must be reserved in the installation area to ensure convenient subsequent maintenance, component replacement, and fluid refilling.
2. Pipeline Connection Precautions
Fuel pipe interfaces must be thoroughly cleaned, and fuel-resistant sealants should be used. The pressure test must maintain the rated pressure for 5 minutes with no leakage.
Exhaust pipes should be installed with a 3°-5° downward slope to prevent condensed water from flowing back into the engine. High-temperature resistant gaskets are used at the interfaces, and the exhaust pipes of indoor units must be kept away from flammable materials after extending outdoors.
Drilling holes or changing the pipe diameter on the exhaust pipe without permission is prohibited. If the number of elbows exceeds 3, an exhaust auxiliary device must be added.
3. Electrical Connection Precautions
Disconnect all power sources before wiring, strictly distinguish between positive and negative poles and control lines according to the electrical wiring diagram to avoid short circuits and component burnout caused by wrong connections.
The cross-section of the power cord must match the generator's output power (≥1mm² copper core wire for every 10A current). After compressing the wiring terminals, wrap them with insulating tape for more than two layers.
The grounding wire must be a dedicated yellow-green double-colored cable, the measured grounding resistance must be ≤4Ω, and the oxide layer at the grounding point must be removed to ensure good contact.
4. Fluid and Transmission System Precautions
Use engine oil and coolant of the type recommended by Deutz's original factory, and strictly control the filling amount between the upper and lower limits of the scale. Excessive filling may cause leakage, while insufficient filling will lead to overheating failures.
Avoid tapping during the installation of transmission components. Check that the rubber parts of the elastic coupling are free of aging and cracks, and the flexible drive plate of single-bearing models is free of deformation and warping.
Let the fluid stand for 10 minutes after filling, check for leakage at the oil pan, coolant tank, and pipeline interfaces, and confirm that the fluid circulation circuit is smooth before starting.
5. Startup and Test Precautions
Manually turn the crankshaft 2-3 times before the first startup to confirm there is no jamming, and check the tightness of all connection parts.
After startup, run at idle speed for 5 minutes first, observe the speed stability and any abnormal noise, and gradually load the generator only after the water temperature rises above 60℃.
Voltage testing must cover three working conditions: no-load, 50% load, and rated load. Ensure the output voltage is stable between 26V-28V, and immediately shut down the machine to check for electrical or mechanical faults if abnormalities occur.
The content regarding the installation method and precautions of the Deutz 28V Generator may be compiled by integrating the user manual, technical data of Deutz generators, as well as relevant industry standards and practical experience. From the search results, the relevant content on platforms such as Sohu.com and Douyin Encyclopedia has partial similarities with the above text, but they are not completely consistent.

