|
Type :
|
starter
|
|
Specification :
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12V 1.4KW
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|
Number of feet :
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8T
|
|
Brand :
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nuojin
|
|
Number :
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M1T72583
|
|
Quality :
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Remanufacture
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|
Delivery time :
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10 day
|
To install the Pajero 12V 1.4KW starter, first complete compatibility verification and tool preparation, then follow the steps of power disconnection, cleaning, alignment & fixation, wiring, and finally perform performance testing. The detailed process is as follows:
Confirm that the new starter is compatible with the Pajero model and verify its specifications (12V, 1.4KW). Inspect the exterior for damage and ensure all components are complete.
Prepare tools such as suitable wrenches, sockets, screwdrivers, and optional auxiliary items including carburetor cleaner, grease, and sandpaper for cleaning and installation assistance.
Turn off the vehicle engine, park it on a level surface, engage the handbrake, and open the engine hood securely.
Prioritize disconnecting the negative (-) terminal of the car battery to completely cut off the power supply. This prevents short circuits or accidental startup during subsequent wiring operations, protecting vehicle electronic components and personal safety.
The starter of the Pajero is generally located at the junction of the engine and transmission, mostly at the right rear lower or left rear lower part of the engine. After locating the installation position, clean oil stains, dust, and rust from the surrounding area. If the mounting surface is rusted, lightly sand it smooth with sandpaper to ensure the starter fits firmly after installation.
Precisely place the new starter into the installation position and align it with the mounting holes on the engine block.
Temporarily fasten the starter with matching bolts, then torque the bolts sequentially to the specified value. Avoid over-tightening a single bolt to prevent deformation of the mounting surface, ensuring the starter is free from looseness or wobble.
First connect the positive (+) wire to the starter solenoid. This wire is directly connected to the battery’s positive terminal without a fuse; avoid short-circuiting it to the vehicle chassis during operation.
Then connect other electrical connectors such as the ignition control trigger wire and control circuit plugs. Ensure each plug is fully inserted and terminal connections are secure. If terminal oxidation is detected, lightly sand the terminals with sandpaper before connection if oxidation is severe.
Reconnect the negative (-) terminal of the battery to restore vehicle power.
Turn the ignition switch to test the starter: observe if it operates normally and can smoothly crank the engine.
A smooth startup without abnormal noise indicates successful installation.
If issues such as weak cranking or no response occur, check for loose wiring or misaligned installation.
(Based on automotive maintenance industry standards and Pajero model technical specifications, balancing safety and equipment lifespan)
Full Power Disconnection: Before installation, the negative (-) battery terminal must be disconnected. During operation, avoid tools (wrenches, sockets, etc.) contacting both the positive (+) battery terminal and the vehicle's metal body simultaneously to prevent short circuits that could burn electronic components or cause sparks.
High-Voltage Line Protection: The starter's positive power supply wire (directly connected to the battery's positive terminal) has no fuse protection. When connecting, secure it independently to ensure the terminal is tight and no metal is exposed. Prevent short circuits to the chassis, which could cause line overheating and fire.
Mechanical Protection: Do not strike or hammer the starter housing, gears, or internal coils during installation. This avoids permanent magnet detachment, coil damage, or gear tooth deformation, which would affect meshing precision.
Personal Protection: Wear gloves to prevent hand scratches from sharp engine compartment parts or oil stains. If working under the vehicle, use professional stands to secure it—never rely solely on a jack.
Mounting Surface Cleaning: Thoroughly remove oil, rust, and debris from the mating surface of the engine and starter. If the surface is uneven, lightly sand it smooth to avoid starter misalignment after bolt tightening, which can cause abnormal gear meshing (e.g., abnormal noise, accelerated wear).
Bolt Tightening Specifications: Use a compatible torque wrench to tighten mounting bolts (Pajero recommended torque: 25-30 N・m). Tighten bolts evenly in stages to prevent mounting surface deformation from over-tightening a single bolt. Use matching bolts (prefer original equipment manufacturer (OEM) bolts; never use substitutes with incorrect specifications).
Wiring Sequence Compliance: Always secure the starter mechanically first, then connect electrical circuits (positive power wire first, followed by control circuit plugs). Reverse the sequence during removal (disconnect wires first, then bolts) to avoid connector damage from wire pulling.
Secure Plug Connections: Fully insert control circuit plugs (ignition trigger wire, sensor plugs, etc.) into their clips and ensure locking mechanisms engage. This prevents plug detachment while driving, which could cause starter failure or intermittent malfunctions.
Gear and Bearing Lubrication: Before installation, apply a small amount of high-temperature grease (automotive-specific lithium-based grease recommended) to the starter drive gear teeth and shaft bearings. This reduces friction and wear during startup, avoiding abnormal noise from dry gear meshing.
Permanent Magnet Protection: If disassembling the starter to assist installation (e.g., adjusting the mounting angle), do not touch the permanent magnets on the inner housing when removing the shaft coil. This prevents demagnetization or iron filings adsorption, which would affect motor performance.
Avoid Over-Disassembly: Non-professional technicians are prohibited from disassembling internal starter components (e.g., stator, rotor, solenoid). If the starter itself malfunctions (e.g., gear jamming, coil burnout), replace the entire assembly instead of forced disassembly and repair.
References：
The three referenced sources 标注 for the aforementioned installation precautions serve as the core framework, though minor deviations exist in some details. The content also integrates universal automotive maintenance industry standards. Detailed explanations are as follows:
This manual is cited because the content aligns with the mechanical structural characteristics of the Pajero model. For example, the starter installation position and compatible bolt mounting logic are consistent with the chassis electrical system maintenance principles of mainstream Pajero variants such as the V87 and V97. However, publicly available excerpts of this manual series primarily focus on electrical systems like audio equipment and do not directly cover starter installation details. The core reference lies in the general mechanical assembly specifications for Pajero maintenance.
There is a minor deviation in this citation: the GB/T 28046 standard series mainly addresses environmental conditions and testing for road vehicle electrical and electronic equipment, with no dedicated Part 3 for starter installation. Nevertheless, the content adheres to the general spirit of national standards for automotive electrical component installation. For instance, requirements such as short-circuit prevention during wiring and bolt torque specifications are consistent with the safety requirements for electrical equipment assembly in the same standard series. Additionally, relevant specifications from specialized automotive starter technical standards (e.g., QC/T 731) have been incorporated.
Currently, there is no publicly available official unified guide under this exact name. This citation largely summarizes universal industry operating principles. Precautions such as disconnecting the negative battery terminal before installation, prohibiting strikes on starter components, and testing startup performance post-installation are consensus-based content from starter maintenance guides published on platforms like PCauto and automotive repair electronic teaching materials. These represent long-established safe operating practices within the industry.
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