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Type :
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starter
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Specification :
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Number of feet :
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8T
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Brand :
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nuojin
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Number :
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QDJ1312 1043100FB010
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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 12V 2.0KW starter adapted for JAC Refine follows the general specifications for automotive starter installation, while adjustments need to be made to match the engine compartment layout and electrical characteristics of this specific model. Below is a detailed, actionable installation method. It is recommended to wear protective gloves and goggles before operation to prevent electrical hazards and mechanical injuries:
Component Verification and InspectionFirst, confirm that the new starter is labeled 12V 2.0KW and fully compatible with the corresponding JAC Refine model. Carefully check that the starter housing has no cracks, the terminals are free of oxidation and rust. Manually rotate the drive gear to ensure smooth operation without jamming, and verify there are no loose parts or abnormal noises inside the starter to prevent component defects from affecting subsequent use.
Tool and Consumable PreparationPrepare tools including 10–12mm box-end wrenches, Phillips screwdrivers, torque wrenches, a 1/4" drive ratchet with extension bar and 8mm socket, etc. Also prepare cleaning cloths, a small amount of conductive paste and lithium-based grease, which are used respectively for cleaning the mounting surface, preventing terminal oxidation, and lubricating gear components.
Power-off Safety OperationTurn off the vehicle's main power supply and disconnect the negative battery cable. This is a critical preliminary step to avoid safety accidents such as short circuits and accidental starting during installation. Avoid touching exposed electrical interfaces throughout the process.
First, locate the starter mounting position at the junction of the engine and transmission. Use the appropriate wrench to loosen the starter's fixing bolts and remove the old starter. Then disconnect the main power cable and control wire harness plug from the old starter. It is advisable to take photos to record the wiring positions during disassembly to prevent incorrect connections when installing the new unit.
Subsequently, thoroughly wipe off oil stains, dust and rust from the mounting position with a cleaning cloth to ensure a flat surface, laying a solid foundation for the close fit of the new starter.
Place the new starter steadily at the mounting position and precisely align it with the bolt holes. Refer to the wiring orientation of the old starter recorded earlier to ensure the terminal end of the new starter is positioned correctly, avoiding wire harness entanglement and interference during subsequent steps.
Insert the fixing bolts and initially tighten them by hand to prevent the starter from shifting. Switch to a torque wrench for final tightening. Referring to standards for similar vehicle models, the torque should be controlled at approximately 37N·m. If multiple bolts are used, tighten them alternately diagonally to ensure uniform force distribution on the starter housing and avoid housing deformation caused by excessive local stress.
Main Power Cable ConnectionFirmly connect the thick power cable from the battery side to the main terminal of the starter, and fasten it with a nut at a torque of approximately 9.8N·m. Excessive torque may cause terminal breakage, while insufficient torque can lead to poor contact and overheating. Apply a small amount of conductive paste to the connection to enhance conductivity and prevent oxidation.
Control Circuit ConnectionAlign the control wire harness plug with the corresponding interface on the starter, insert it smoothly and ensure the clip locks securely in place. Arrange the wire harness routing properly. If the vehicle is equipped with a wire harness bracket, secure the harness to the bracket at a torque of approximately 8.4N·m to prevent interference between the harness and moving engine components during vehicle operation.
Reconnect the negative battery cable and ensure it is securely fastened. After checking that all connections are tight, start the vehicle for testing. Observe whether the starter runs smoothly, with no drive gear jamming or abnormal noise, and confirm that the engine starts successfully.
If issues such as weak starting or no response occur, cut off the power immediately, inspect for loose circuit connections or misaligned mounting positions, and retest only after troubleshooting the faults.
After successful testing, reinstall any components such as the engine guard removed prior to installation and tighten the relevant bolts in their original positions. Finally, organize the wire harness again to ensure it does not come into contact with high-temperature components such as the exhaust pipe, preventing aging and damage to the harness insulation layer. The installation process is now complete.
Strictly Adhere to Power-off Specifications Throughout the ProcessTurn off the vehicle's main power supply and disconnect the negative battery cable before installation. Never touch the starter terminals or exposed electrical interfaces before power restoration testing. This measure prevents short circuits that could generate sparks, ablate electrical components, or trigger accidental starter activation leading to mechanical damage.
Verify Compatibility Parameters RigorouslyReconfirm that the starter is rated at 12V 2.0KW and fully compatible with the corresponding JAC Refine model before installation. Focus on inspecting the drive gear tooth count, tooth profile, and mounting bolt holes to ensure full compatibility with the engine flywheel housing. This prevents abnormal gear meshing and starter housing deformation caused by poor fitment.
Strictly Follow Torque Standards for Bolt Tightening
The housing fixing bolts must be tightened alternately diagonally, with the torque controlled at approximately 37N·m. Excessive torque may cause housing cracking and thread stripping; insufficient torque will lead to starter vibration and abnormal noise during operation, and even wear of the flywheel ring gear over long-term use.
The torque for the main terminal nut should be set at 9.8N·m. Loose fastening may result in overheating and ablation, while over-tightening could crack the terminal insulation layer. The control wire harness bracket should be fixed at a torque of approximately 8.4N·m, and ensure the clip is fully locked to prevent harness detachment during vehicle operation.
Strictly Control Lubricant Dosage and Application PositionApply only a small amount of lithium-based grease to the drive gear tooth surface to improve meshing smoothness. Never inject grease into the overrunning clutch, electromagnetic switch, or coil components. Grease entering these internal parts will cause coil short circuits and overrunning clutch jamming, directly rendering the starter unusable.
Prohibit Reverse or Incorrect Circuit Connection
The main power cable (thick cable) must be connected to the starter’s main terminal, and the control wire harness (thin wire) to the auxiliary terminal. Reverse connection is strictly forbidden, as it will instantly burn out the electromagnetic switch or the vehicle’s circuit fuse.
Clean the oxide layer on the terminal surface before connection, and apply a small amount of conductive paste to reduce contact resistance. When arranging the wire harness, keep it away from high-temperature components such as the exhaust pipe and engine block to prevent aging and damage to the harness insulation layer, which could lead to short circuits.
References：
The installation precautions for the 12V 2.0KW starter adapted for JAC Refine mentioned earlier are not derived from the exclusive manual for this specific starter model officially released by JAC Motors or a single authoritative document. Instead, they are comprehensively summarized and compiled by integrating general automotive starter installation specifications, the adaptation characteristics of JAC Refine models, and technical key points from multiple automotive maintenance platforms. The specific reference bases are as follows:
Content such as disconnecting the power supply before installation, paying attention to the wiring harness position during disassembly, and locating the starter mounting position at the junction of the engine and transmission is consistent with the basic disassembly and installation points for JAC Refine starters published on platforms like Qiche Dashi (Auto Master) and Pacific Auto Network. For example, the reminder to record the wiring harness connection positions when removing the old starter aligns with the core requirement emphasized by Pacific Auto Network that attention should be paid to wire connectors during the disassembly of Refine starters to avoid component damage.
Several key torque parameters, such as the housing fixing bolt torque of approximately 37N·m, the main terminal nut torque of 9.8N·m, and the control wire harness bracket fixing torque of approximately 8.4N·m, fully match the general torque standards for automotive starter installation in the Pacific Auto Network Encyclopedia. Additionally, the tool selection mentioned in the content, such as a 1/4" drive ratchet with an extension bar and an 8mm socket, is also consistent with the adapter tool requirements for starter installation specified on this platform.
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