|
Type :
|
starter
|
|
Specification :
|
24v 4.5KW
|
|
Number of feet :
|
11T
|
|
Brand :
|
nuojin
|
|
Number :
|
012326 03555020015
|
|
Quality :
|
Remanufacture
|
|
Delivery time :
|
10 day
|
The installation logic of the Hino 24V 4.5KW starter aligns with the installation specifications for starters of heavy-duty diesel engines. The core focuses include ensuring safe power disconnection, component compatibility, torque standards, and correct polarity of wiring. Considering the starter’s characteristics of high power and adaptation to diesel engines, the detailed installation steps are as follows:
Prepare socket wrenches, a torque wrench, cleaning rags, high-temperature lithium-based grease, and anhydrous ethanol. Meanwhile, prepare replacement bolts of the same specification, new gaskets, dust-proof sleeves, and other vulnerable parts. If the original terminal connectors are oxidized, prepare sandpaper for polishing and cleaning.
Park the forklift or equipment equipped with a Hino engine on a flat surface, engage the parking brake, and turn off the engine. Use a wrench to disconnect the negative battery cable, wrap the cable end with insulating tape, and keep it away from the terminal to prevent short circuits caused by accidental contact. Wear non-slip gloves and goggles to avoid oil contamination or scratches from parts during installation.
Confirm that the housing of the 24V 4.5KW starter has no cracks or deformation, the drive gear rotates flexibly without jamming, and the solenoid switch terminals are free from oxidation and rust. Wipe the starter’s mounting surface and the engine flywheel housing’s mounting bracket with anhydrous ethanol to remove oil stains and rust; apply a thin layer of high-temperature grease to the starter’s bearings, the tooth surface of the drive gear, and the armature shaft bushing. Avoid excessive grease application to prevent grease from being thrown into the coil.
Align the starter with the mounting position on the engine flywheel housing, ensuring the drive gear is accurately aligned with the flywheel ring gear for smooth subsequent meshing. Simultaneously, align all bolt holes of the starter with those of the mounting bracket to avoid thread damage caused by forced alignment.
Insert the fixing bolts and tighten them initially (leave room for fine adjustment). Then, use a torque wrench to tighten the bolts in accordance with specifications, with a reference torque of 38–42N・m (specific values can be adjusted by referring to the corresponding Hino model manual). Apply force evenly when tightening the bolts to prevent operational vibration due to loose bolts or starter housing cracking due to over-tightening.
Locate the power terminal (usually a thick wire interface) on the starter’s solenoid switch. Gently polish the oxidized layer on the terminal surface with sandpaper, insert the power cable connector into the interface, and tighten it with a nut (reference torque: 11–13N・m). After tightening, fit the dust-proof sleeve properly.
Connect the control circuit connector and confirm that the connector’s claw is fully locked to prevent it from falling off during equipment operation. Since this starter uses a 24V high voltage, strictly distinguish between positive and negative circuits; reverse connection is strictly prohibited to avoid burning the solenoid switch coil or the equipment’s electrical control system.
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 gear impact noise will occur during startup—add thin gaskets between the starter and the mounting bracket. If the gap is too large, it may easily cause startup slipping and insufficient power—replace with thicker gaskets or fine-tune the starter’s mounting position until the gap meets the standard.
Remove the insulating tape from the negative battery cable, reconnect the cable, and tighten the fixing nut to ensure the circuit is unobstructed and free from looseness.
Perform an inching test: briefly turn on the starter switch (for 1–2 seconds) and observe whether the drive gear extends and retracts smoothly. Then start the equipment normally and check if the starter operates stably without harsh abnormal noise.
If conditions permit, use a multimeter to test the current and voltage during startup, confirming they fall within the normal operating range of a 24V starter. Conduct 3–5 consecutive startup tests to ensure there are no issues such as startup delay or jamming—once confirmed, the installation is complete.
The Hino 24V 4.5KW starter is suitable for heavy - duty diesel engines and features high voltage (24V) and large power (4.5KW). During installation, priority must be given to high - voltage safety, component compatibility, and mechanical clearance control to avoid equipment damage and potential safety hazards. The specific precautions are as follows:
Before installation, you must turn off the main battery switch (if the equipment is equipped with one), then disconnect the negative battery cable. Wrap the cable terminal tightly with insulating tape and ensure it maintains a distance of over 10cm from any metal components (including the positive battery terminal and equipment housing). This is because the current generated when a 24V system short - circuits is much higher than that of a 12V system. Accidental contact may lead to cable ablation, battery bulging, and even sparks that ignite surrounding oil stains.
It is forbidden to plug or unplug circuit connectors without cutting off the power. An electric arc is likely to occur at the moment of contact in a 24V high - voltage circuit, which may burn hands or damage terminals. This is especially true for the power terminal of the solenoid switch, which has a strong current - carrying capacity. Such operations must be performed only after the negative cable is completely disconnected.
Strictly distinguish between positive and negative circuits. The power cable (usually a thick red/orange wire with the terminal marked "+" or "B") must be connected to the positive battery circuit. The control cable (a thin blue/black wire with the terminal marked "S" or "IGN") should be connected to the starter switch. Reversing the polarity will instantly burn out the solenoid switch coil and rectifier, and may even break down the equipment's ECU. The ECU of heavy - duty equipment is extremely sensitive to abnormal voltage polarity.
A secondary inspection is required after circuit connection. Use the DC voltage range of a multimeter to confirm that the voltage of the power terminal is 24V±0.5V, and that the voltage of the control cable terminal is no less than 23V when the starter switch is closed. This avoids sudden voltage drops and weak starting of the starter caused by poor circuit connections.
References：
The precautions for installing the Hino 24V 4.5KW starter you previously viewed do not originate from a single exclusive official document. Instead, they are summarized and integrated based on Hino’s original engine maintenance specifications, universal industry installation standards for starters, and relevant technical materials. The specific reference bases are as follows:
The core content in the precautions—such as the bolt torque standards for starter installation, model compatibility verification (e.g., for J05E, J08E series engines), and battery voltage requirements—aligns with the core logic of the "Starting and Charging" chapter in Hino’s Engine Maintenance Manual. This manual explicitly emphasizes that the installation of heavy-duty engine components must comply with strict model matching requirements and bolt tightening torque specifications. It also includes detailed warnings regarding the power-off process and insulation protection for high-voltage circuit operations, which serve as an important reference basis for clauses in the precautions related to high-voltage safety operations and component compatibility verification. Additionally, the component inspection methods and fault diagnosis guidelines documented in the manual provide a basis for the content regarding phased post-installation testing and abnormal handling.
Manufacturers that produce Hino-compatible 24V 4.5KW starters—such as Fujian Yida Electric Drive Co., Ltd.—do not directly specify installation steps on their product parameter pages. However, they clearly outline the core attributes of such starters, including rated voltage and compatible engine series. This provides product-level parameter support for the content in the precautions related to verifying the compatibility between the starter and equipment model, as well as the voltage testing standards.
Related Articles
Discover what vehicles use auto starter systems and how Auto Starter car technology improves safety, convenience, and performance. Learn about manufacturer production, factory supply, and modern applications for cars, trucks, and commercial vehicles.....
Looking for a complete Auto Starter guide? This article explains how auto starters work, types, symptoms, maintenance tips, and how manufacturers and factories supply high-quality starters for global production and bulk orders.....
Learn everything about starter parts, how they work, signs of failure, maintenance tips, and how a professional manufacturer with factory production ensures stable, high-quality starter components for global vehicle owners.....
Explore the real-world Auto Starter disadvantages in industrial and automotive production. Learn how auto starter systems affect reliability, cost, maintenance, and factory manufacturing efficiency.....
Discover what a starter solenoid does in a vehicle, how it works with the starter motor, signs of failure, and why quality starter solenoid production from a professional manufacturer and factory matters for reliable performance.....
Explore common Boat Starter types and learn which marine engines they fit best. As a professional Boat Starter manufacturer with factory production and bulk supply capability, we provide reliable starting solutions for outboard, inboard, and diesel marine engin....
