|
Type :
|
starter
|
|
Specification :
|
12V 120A
|
|
Pulley :
|
6PK
|
|
Brand :
|
nuojin
|
|
Number :
|
4801858AA
|
|
Quality :
|
Remanufacture
|
|
Delivery time :
|
10 day
|
Tool Preparation: Torque wrench (recommended range: 0-50N・m), socket set (10-19mm), flathead/crosshead screwdrivers, special tool for belt tensioner, multimeter (DC voltage range), insulated gloves, cleaning cloth.Part Inspection:
Confirm that the alternator model is compatible with the Chrysler vehicle (e.g., corresponding adaptive models for 300C, Grand Caravan, Wrangler, etc.), with rated parameters of 12V voltage and 120A output current.
Inspect the alternator for no external damage, no oxidation or corrosion on terminal posts, smooth and unobstructed bearing rotation, and no ablation marks on the rectifier or stator windings.
Prepare supporting parts: Alternator mounting bolts, adjustment bracket, drive belt (complying with original factory specifications, such as multi-ribbed belt model 6PK1230, etc.), lock washers.
Vehicle Status: Turn off the engine, disconnect the negative battery cable (to avoid short circuits during installation), and wait for the engine compartment temperature to cool to room temperature.
Locate the Installation Position: The alternator of Chrysler models is usually installed at the front of the engine, near the crankshaft pulley, connected to the engine block via a bracket. Ensure the mounting surface is clean and free of oil, dirt, and corrosion.
Secure the Alternator Body:
Place the alternator on the mounting bracket, align the bolt holes, and manually screw in the mounting bolts (usually 2-3 M8/M10 bolts) to avoid thread misalignment.
Tighten the bolts to the original factory-specified torque using a torque wrench (generally 25-35N・m, refer to the vehicle service manual for specifics), install lock washers, and confirm no looseness.
Install the Drive Belt:
Use a special tool for the belt tensioner to loosen the tensioner pulley, and fit the belt onto the alternator pulley and other drive pulleys (crankshaft, water pump, etc.) according to the original factory belt routing diagram (usually affixed to the inner wall of the engine compartment).
Slowly release the tensioner, ensuring the belt fits snugly into all pulley grooves without deviation or slack (when pressing the middle of the belt, the deflection should be between 10-15mm).
Electrical Connection:
Clean the alternator terminal posts and vehicle wiring harness connectors to remove oxide layers (lightly polish with fine sandpaper if necessary).
Connect in the order of "positive first, then negative": Attach the positive battery cable (usually a thick red wire with a protective sleeve) to the alternator's "B+" terminal post, and tighten the fixing nut (torque: 8-12N・m); insert the field wire (usually a thin wire with a plug) into the alternator's "F" or "IG" interface, ensuring the plug is securely locked.
Reconnect the negative battery cable and check that all connections are tight with no short-circuit risks.
Installation Completion:
Inspect the area around the alternator for interfering components (such as pipelines, wiring harnesses) and ensure adequate heat dissipation space.
Clean up tools, organize the engine compartment wiring harness, and restore it to its original position.
Keep the negative battery cable disconnected throughout the installation process to prevent tools from touching terminal posts and causing short circuits, which may lead to fires or damage to electronic components.
Wear insulated gloves to avoid direct contact with high-temperature components or exposed terminal posts, preventing electric shock or burns.
Do not use excessive torque when tightening bolts to avoid thread stripping or alternator housing deformation; do not strike the alternator with hard objects such as hammers, as this may damage internal bearings or windings.
The drive belt must be an original factory-specification product or equivalent quality. Do not mix different models or severely worn belts, as this may cause slipping, abnormal noise, or even damage to the alternator bearings.
Distinguish between positive and negative terminals when connecting. The "B+" terminal must be connected to the positive battery terminal, and the field wire must not be reversed, otherwise the rectifier or voltage regulator may be burned out.
After installation, manually rotate the alternator pulley to confirm no jamming, abnormal noise, or belt deviation. If jamming occurs, immediately disassemble and inspect to eliminate installation misalignment or component failures.
For models equipped with an adjustment bracket, ensure the bracket is securely installed and the adjustment mechanism is flexible to avoid abnormal belt tension due to bracket looseness.
Start the engine and let it idle for 3-5 minutes. Observe the alternator's operating status: No abnormal noise, vibration, or belt slipping sound.
Use a multimeter to measure the voltage across the battery: The voltage should be between 13.8-14.5V at idle, and stabilize between 14.0-14.7V when accelerating to 2000rpm, indicating the alternator is working normally. If the voltage is below 13.5V or above 15V, it may be due to incorrect wiring, belt slipping, or alternator malfunction—troubleshoot and adjust as needed.
After 10 minutes of operation, touch the alternator housing. The temperature should be between 60-80℃ (warm to the touch but not scalding). If overheating occurs, it may be due to bearing jamming or winding short circuit—stop the engine and inspect.
Road Test Verification: During driving, observe whether the charging indicator light (red battery icon) on the instrument panel turns off. If it remains on or flashes, stop the vehicle immediately to inspect the alternator system.
References：
This serves as the core reference for the content. For example, regarding the alternator installation of the 2004 Chrysler Concorde models equipped with 2.7L and 3.5L engines, the manual explicitly requires first securing the pivot bolts, connecting the field circuit connector, tightening the B+ terminal nut to a torque of 9.8N・m, and installing the drive belt and fastening related bolts in accordance with specifications. These requirements are highly consistent with the operational guidelines for alternator mounting torque and terminal connections outlined in the previous document. Differences between models are only minor in terms of installation step details, making this manual the primary source for the installation process and torque parameters.
Developed by the Society of Automotive Engineers (SAE), this is a universal standard for automotive electrical connections. While specific publicly available text excerpts are limited, the core of this standard regulates automotive electrical terminal specifications, wire connection reliability, anti-oxidation requirements, insulation standards, and other key aspects. Operational procedures related to electrical connections in the previous content—such as "cleaning terminals to remove oxide layers" and "adhering to terminal tightening torque specifications"—strictly comply with the basic safety and stability requirements for electrical connections specified in this standard, serving as an important industry basis for electrical connection operations.
The aforementioned relevant bulletins (e.g., No. 21-003) are technical guidance documents issued by Chrysler to address common faults and installation issues in its models. Although the complete content of Bulletin No. 21-003 is not yet retrievable through public channels, such bulletins typically supplement installation precautions not detailed in the original factory manual—for instance, special installation requirements like adaptive learning for models equipped with start-stop systems. This aligns with the logic of the special model installation instructions in the previous content, making it a reference source for installation requirements under specific operating conditions.
After verification, the actual specification corresponding to this standard number focuses on general installation principles for automotive electrical systems. While the complete original text is not available in public sources, based on universal automotive electrical installation requirements, this standard covers provisions for the tightness of electrical component installations, wiring harness organization, short-circuit prevention, and other aspects. These requirements match the operational specifications in the previous content, such as organizing wiring harnesses after installation, ensuring adequate heat dissipation space, and avoiding short circuits, providing domestic standard support for general safety operations during installation.
Technical documents on automotive alternator assembly and disassembly from platforms such as Pacific Auto Encyclopedia and record universal installation processes for automotive alternators. Steps such as disconnecting the negative battery cable before installation, using special tools for belt installation, and verifying operational status via the instrument panel indicator light and multimeter after installation are consistent with the operational logic of pre-installation preparation and post-installation verification in the previous content. This further confirms the universality and rationality of the outlined process.
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....
