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Type :
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Starter Motor
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Specification :
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24V 5.5KW
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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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0350-552-0510 0350552051
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Quality :
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NEW
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Delivery time :
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10 day
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The Hino 24V 5.5KW starter motor is mostly compatible with diesel engine series such as the W06D, commonly used in Hino's heavy-duty commercial vehicles or special-purpose models. Its installation must comply with the high-voltage electrical characteristics and mechanical assembly requirements of heavy-duty vehicle starters. The following are the standardized installation steps, with reference to the core points of the Hino W06D-TI model maintenance manual and universal installation standards for heavy-duty vehicle starters:
Wear insulated non-slip gloves and safety goggles. Strictly prohibit wearing metal accessories such as rings. First, turn off the vehicle's main power switch and disconnect the negative battery cable. Since this starter is a 24V high-voltage specification, wait 5-10 minutes to discharge residual electricity in the circuit to avoid high-voltage short circuits damaging electrical components.
Verify that the model of the new starter is compatible with the target Hino vehicle. Check that the starter housing has no cracks, the drive gear is free of wear and retracts smoothly, and the bearing rotates without jamming. Prepare tools including:
Torque wrench
22-24mm socket
Phillips screwdriver
Wire harness clips
High-temperature grease
Metal cleaner
Meanwhile, clean the mounting surface where the engine and starter fit to remove oil stains and rust. Rotate the flywheel to inspect the ring gear—if there are broken teeth or severe wear, replace it before proceeding.
The starter is mostly located at the flywheel housing at the junction of the engine and transmission. For some models, it may be necessary to remove surrounding protective plates and pipeline brackets, clear obstructing wire harnesses, and reserve sufficient operating space to avoid interference during component assembly.
Steadily attach the starter to the mounting surface. Manually toggle the drive gear to ensure accurate alignment with the flywheel ring gear, with no misalignment or jamming, to guarantee smooth engagement during subsequent operation.
Pre-tighten 3-4 matching fixing bolts diagonally, then tighten them to the standard torque of 65±5N・m for heavy-duty vehicle starters using a torque wrench (specific values can be fine-tuned with reference to the corresponding Hino model manual). Insufficient torque will cause severe vibration during operation, while excessive torque may damage the flywheel housing threads or the starter housing.
Locate the starter's Terminal 30 (main power terminal), connect the thick power wire harness from the battery side, and tighten the terminal nut to 15±2N・m with a torque wrench. The 24V circuit carries higher current—ensure the terminal is free of oxidation. If necessary, apply conductive paste to reduce contact resistance and prevent overheating and ablation.
Gently insert the plug of the solenoid switch's Terminal 50 (control terminal). Do not force insertion or removal to avoid bending the pins. Arrange the wire harness routing to avoid rotating components such as the engine pulley and fan, fix it with wire harness clips, and tighten the wire harness bracket bolts to 10±1N・m.
Reinstall the previously removed protective plates, pipeline brackets, and other components in sequence. Confirm that all protective covers are properly installed. Reconnect the negative battery cable, tighten the terminal nut, and check for no looseness at the connection.
First, turn on the power for a no-load test: observe if the starter operates smoothly without abnormal noise and if the rotational speed meets the standard. Then start the engine and check if the starter can smoothly drive the flywheel without tooth-skipping noise. If startup is weak, verify that the battery voltage is ≥24V. If there is abnormal noise, readjust the starter installation angle or inspect the ring gear engagement. If necessary, use a multimeter to test the continuity of the control circuit.
Considering that the Hino 24V 5.5KW starter is designed for heavy - duty commercial vehicles and features high - voltage and high - power characteristics, as well as in line with the universal standards for installing heavy - duty vehicle starters, its installation precautions can be elaborated from core dimensions including safety protection, assembly accuracy, electrical protection, and test taboos. Details are as follows:
As this starter is a 24V high - voltage model, in addition to disconnecting the negative battery cable during power - off, it is essential to wait 5 - 10 minutes to discharge the residual electricity in the circuit. It is strictly prohibited to touch the terminals before discharging, so as to prevent high - voltage short circuits from burning out the Electronic Control Unit (ECU) or causing electric shocks. Before restoring power, ensure that all wiring connections are completed and the ignition switch is in the off state without fail.
It is mandatory to wear insulated non - slip gloves and safety goggles. Wearing metal accessories such as rings and watches is strictly forbidden. The working area must be kept away from flammable and explosive substances like diesel and cleaning agents, and maintained in a dry and well - ventilated condition to avoid hazards caused by sparks generated by the high - voltage circuit.
If components fit too tightly during installation, special pulling and pressing tools should be used for auxiliary assembly. It is strictly prohibited to strike the starter housing, drive gear, or magnetic switch violently with tools such as hammers. This is to prevent irreversible damages including housing deformation and gear tooth breakage.
The fixing bolts should be tightened diagonally to a torque of 65±5N・m. Manual tightening or over - torque operations are not allowed. The nut of the main power terminal should be tightened to 15±2N・m, and the bolts of the wire harness bracket should be fastened to 10±1N・m. Improper torque may lead to starter vibration, thread damage, or terminal overheating and ablation.
Before fixing the starter, manually toggle the drive gear to confirm that the engagement clearance between the drive gear and the flywheel ring gear is appropriate, with no jamming or seizing. If there is any abnormal engagement, readjust the installation angle. Never attempt to start the engine forcibly, as this will result in excessive gear wear.
References：
The precautions for installing the Hino 24V 5.5KW starter motor mentioned earlier are not derived from a specific exclusive model maintenance manual or a single authoritative document issued by Hino. Instead, they are summarized and integrated based on the maintenance key points of Hino's corresponding models, universal installation standards for heavy-duty vehicle starters, and practical experience from the mainstream auto repair industry. The specific reference sources are as follows:
The content related to compatible models and installation positions in the text aligns with the relevant maintenance specifications of the Hino W06D-TI model. For example, it is mentioned that the starter is compatible with Hino's W06D series diesel engines. Although the Hino W06D-TI maintenance manual included in ManualsLib does not separately list the complete installation process for this specific starter, its requirements for disassembling the engine flywheel housing, surrounding protective plates, and pipelines are consistent with the description in the text that surrounding protective plates need to be removed and the installation workstation near the flywheel housing should be cleaned before installation. This provides a model-specific reference basis for the basic operations of installing the starter main body.
Many basic precautions and testing specifications comply with the industry's universal standards for high-voltage, high-power starters in heavy-duty vehicles. For instance:
The requirement to discharge residual electricity in the circuit before installation,
The recommendation to first perform a 12V low-voltage no-load test before switching to the 24V standard test for 24V starters,
The specification that electrical components should be wiped with wrung-out gasoline-soaked gauze to avoid short circuits
These contents are consistent with the 24V starter maintenance taboos and testing procedures summarized on Autohome. Additionally, the torque requirements for the starter's fixing bolts and terminal nuts align with the general control logic for bolt tightening force during the installation of heavy-duty vehicle starters, and are consistent with the core principles of the torque specifications for installing heavy-duty vehicle electrical components included in Auto Repair Station.
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