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Type :
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starter
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Specification :
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24V 5KW
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Number of feet :
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11T
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Brand :
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nuojin
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Number :
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23300-Z5505
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Quality :
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Remanufacture
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Delivery time :
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10 day
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The Nissan 24V 5KW starter is mostly suitable for Nissan series heavy-duty diesel vehicles, engineering operation vehicles, and other equipment. Its installation must follow core principles such as power-off protection, precise adaptation, and standardized wiring. Combined with the high-torque characteristics of this power-rated starter and the adaptation requirements of Nissan equipment, the specific installation method is as follows:
Prepare socket wrenches, a torque wrench, anhydrous ethanol, cleaning rags, and high-temperature lithium-based grease.
Meanwhile, prepare spare fixing bolts of the same specification, new gaskets, and other vulnerable parts.
If there is oxidation on circuit terminals, additionally prepare 120-grit sandpaper for polishing.
In addition, a multimeter is required for subsequent voltage detection, along with safety equipment such as insulating gloves and safety goggles.
Park the equipment on a flat surface and pull the parking brake tightly. After turning off the engine, first disconnect the main battery switch (if equipped).
Then disconnect the negative battery cable, and wrap the terminal tightly with insulating tape to prevent contact with metal components and avoid hazards caused by short circuits in the 24V high-voltage circuit.
Check that the housing of the new starter has no cracks, the drive gear has no chipped or missing teeth, and the gear rotates flexibly without jamming when turned manually.
Inspect the solenoid switch terminals for oxidation or deformation; if there is an oxide layer, promptly polish it with sandpaper until the metallic luster is exposed.
Verify that the starter is compatible with the Nissan equipment model, and confirm that the mounting hole positions and bolt specifications match.
At the same time, thinly apply high-temperature lithium-based grease to the starter’s helical splines, clutch sliding surface, and armature shaft to ensure smooth operation.
Locate the starter mounting position near the connection between the engine and the transmission. Align the new starter with the mounting surface on the flywheel housing, ensuring the drive gear is accurately aligned with the flywheel ring gear. Simultaneously, align all bolt holes of the starter with those of the mounting bracket—do not force alignment to avoid damaging threads and gears.
Insert the fixing bolts and pre-tighten them initially. Then use a torque wrench to tighten the bolts evenly in two diagonal stages according to the standard of 35–45N・m. The torque can be fine-tuned with reference to the maintenance manual of the corresponding Nissan model to prevent operational vibration due to loose bolts or cracking of the starter’s aluminum alloy housing due to over-tightening.
First, locate the thick-wire power terminal marked “+” or “B” on the starter’s solenoid switch. After polishing the oxide layer on the terminal, connect it to the cable of the battery’s positive circuit, tighten it with a nut according to a torque of 11–13N・m, and then fit the dust cover properly.
Next, connect the thin-wire control terminal marked “S” or “IGN”, and confirm that the connector buckle is fully locked. Strictly distinguish between positive and negative poles during wiring; reverse connection is strictly prohibited to prevent burning the solenoid switch coil or the electronic control system of Nissan equipment.
After wiring is completed, use a multimeter’s DC voltage range to measure the voltage of the power terminal, which must be stably maintained at 24V±0.5V to ensure normal power supply.
Manually toggle the starter’s drive gear to check the meshing gap between the gear and the flywheel ring gear. The normal gap should be maintained at 1–4mm.
If the gap is too small, harsh metal impact noise is likely to occur during startup—add thin gaskets between the starter and the mounting bracket.
If the gap is too large, it will cause startup slipping and insufficient power—replace with thicker gaskets or fine-tune the mounting position, and repeatedly check until the gap meets the standard.
Remove the insulating tape from the negative cable, reconnect it, and tighten the fixing nut.
First perform an inching test for 1–2 seconds to observe whether the drive gear extends and retracts smoothly.
Then start the equipment normally and check that the starter operates stably without abnormal noise.
If conditions permit, use a multimeter to detect the current and voltage during startup, and confirm they are within the normal operating range of the 24V 5KW starter.
Finally, conduct 3–5 consecutive startup tests; if there are no issues such as startup delay or jamming, the installation is complete.
The Nissan 24V 5KW starter is designed for heavy - duty equipment such as heavy - duty diesel vehicles and engineering operation vehicles. It boasts characteristics of high torque (approximately 210N・m) and high voltage (24V). During installation, priority must be given to avoiding high - voltage circuit risks, mechanical load overload and adaptation deviation problems to ensure equipment safety and the service life of the starter. The specific precautions are as follows:
Before installation, you must first disconnect the main battery switch of the equipment (if equipped), and then remove the negative battery cable. Wrap the cable terminal tightly with insulating tape for no less than 3 layers, and ensure that it keeps a distance of more than 15cm from metal components such as the equipment housing, positive terminal post and engine block. When a short circuit occurs in a 24V high - voltage circuit, the instantaneous current can exceed 250A (far higher than that of the 12V system). The power supply circuit of the 5KW starter is thicker. Accidental contact can easily lead to cable ablation, battery bulging and even fire caused by oil stains in the engine compartment.
Live - line operation is prohibited: Before plugging or unplugging the power terminal (thick wire interface) or control wire connector, use a multimeter to confirm that there is no voltage at the terminal (showing 0V). This avoids electric arc burns to hands caused by 24V high voltage or subsequent electric leakage due to breakdown of the terminal insulation layer. Especially for some Nissan models with dense electronic control wiring harnesses, electric leakage is likely to trigger chain failures.
Wire strictly according to the marks: The power terminal (marked with "+" or "B") can only be connected to the positive battery circuit (usually a thick red/orange wire with a wire diameter of no less than 6mm²), and the control wire terminal (marked with "S" or "IGN") should be connected to the starter switch (a thin blue/black wire with a wire diameter of no less than 1.5mm²). Reversing the polarity will instantly burn out the starter solenoid coil and rectifier diode, and may even break down the ECU of Nissan equipment. For example, the ECUs of Nissan ZD30 and VK45 series engines have extremely low tolerance for abnormal voltage polarity, resulting in extremely high maintenance costs.
References：
The precautions for installing the Nissan 24V 5KW starter mentioned earlier do not originate from a single exclusive official document of Nissan. Instead, they are summarized and integrated based on Nissan’s relevant model maintenance materials, universal industry installation standards for starters, and technical key points of manufacturers that adapt to this model. The specific reference bases are as follows:
The core contents in the precautions—such as the tightening torque of 35–45N・m for the starter fixing bolts, the wiring tightening standard of 11–13N・m for the power terminal, the adaptation to engine series like ZD30 and VK45, and the corresponding original starter models (e.g., 23300-EY00A)—are consistent with the core specifications in the "Starter System Installation and Maintenance" chapter of the Maintenance Manuals for Nissan heavy-duty engines and UD truck series.
Such manuals typically specify core information including the adaptation parameters of the starter to the corresponding model and the installation torque of key components, serving as the core foundation for compiling these precautions. For example, the maintenance manual for Nissan UD series trucks clearly defines the installation torque of the starter.
The contents regarding disconnecting the negative battery terminal before installation, using a multimeter to detect voltage (stabilized at 24V±0.5V) after wiring, and maintaining a 1–4mm meshing gap between the drive gear and the flywheel ring gear comply with the universal industry installation standards for 24V medium-and-high-power starters in heavy-duty equipment.
Professional automotive knowledge platforms such as Pacific Auto (Tai Ping Yang Qi Che) share starter installation specifications that emphasize common requirements such as power-off protection, gap adjustment, and wiring inspection. These specifications can avoid common problems like circuit short circuits and abnormal gear wear, and are applicable to the installation scenarios of starters for most heavy-duty equipment, including Nissan.
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