مرآة الرؤية الخلفية اليسرى FAW J6P: تحليل 3 الأجزاء المهمة لرؤية خالية من العيوب

مرحبًا بكم في هذا التفكيك النقدي لل مرآة الرؤية الخلفية اليسرى FAW J6P لفاو جيفانغ CA3250P66K2L1T1E 6×4 تفريغ الشاحنة. This is not just a piece of glass; إنه معقد, multi-functional safety system. يقوم هذا الدليل بتحليل 3 critical component types for this driver’s side assembly.

ال مرآة الرؤية الخلفية اليسرى FAW J6P is the driver’s primary tool for monitoring traffic, عوائق, and the rear of the trailer. For a 6×4 dump truck operating on chaotic job sites and in tight urban environments, a clear, مستقر, and comprehensive field of vision is non-negotiable.

This teardown will analyze the main mirror assembly (8202015-A01J), its cosmetic cover, and its high-strength mounting hardware. We will explore the integrated electrical systems, such as the remote adjustment motors and the heating element, which make the مرآة الرؤية الخلفية اليسرى FAW J6P a true all-weather, functional tool.

لفني, understanding this system is key to diagnosing common electrical faults, استبدال الزجاج التالف, or servicing the mounting. تهتز, مرتخي, or non-functional مرآة الرؤية الخلفية اليسرى FAW J6P is a critical safety defect that can ground a vehicle, and replacing it correctly is essential.

جوهر 1: ال “Vision System” منطق (الجمعية الرئيسية)

This is the core component of the مرآة الرؤية الخلفية اليسرى FAW J6P نظام. إنه كامل, factory-sealed assembly containing all functional and structural parts.

1. عنصر: ‘Left Rearview Mirror Assy’ (8202015-A01J) – الكمية 1
هذا (علامة 1) is the entire assembly. العاصي’ (حَشد) التعيين أمر بالغ الأهمية, as it confirms this part includes the outer housing, the internal mounting arm, the primary and convex glass, the adjustment motors, and the heating element.

The Dual-Mirror Logic: This is not a single mirror. A heavy truck مرآة الرؤية الخلفية اليسرى FAW J6P هو “عرض مزدوج” نظام. It contains two separate pieces of glass:
1. **Primary Mirror (العلوي):** كبير, flat piece of glass. Flat glass provides a 1:1 reflection, allowing the driver to accurately judge the distance and speed of vehicles behind them.
2. **مرآة محدبة (Lower):** A smaller, curved piece of glass. This convex “عين السمكة” shape bends the light, providing a much wider field of vision. Its sole purpose is to eliminate the truck’s massive “نقطة عمياء” directly beside and below the cab, revealing cars, راكبي الدراجات, or obstacles.

منطق الإسكان: The outer shell of the مرآة الرؤية الخلفية اليسرى FAW J6P is molded from a high-impact, durable polymer like ABS (Acrylonitrile Butadiene Styrene). This material is chosen for its strength, light weight, and resistance to stone chips. Its aerodynamic “low-drag” shape is designed to slice through the air, preventing wind-buffeting from shaking the mirror glass.

The Structural Arm Logic: This housing is mounted on an extremely rigid arm, often made of die-cast aluminum or steel. This arm’s only job is to be rigid. Any flex in this arm would cause the mirror to vibrate, rendering it useless. This solid mounting is a hallmark of a quality heavy-duty مرآة الرؤية الخلفية اليسرى FAW J6P.

The Breakaway Logic: This arm is often designed with a high-tension spring-loaded pivot. This allows the entire mirror assembly to “break away” or fold inward upon a significant impact (like hitting a tree branch). This saves the mirror from being torn off, allowing the driver to simply “pop” it back into place.

جوهر 2: ال “وظيفية” منطق (The Electrical System)

Housed within the main assembly is the sophisticated electrical system that elevates the مرآة الرؤية الخلفية اليسرى FAW J6P from a simple reflector to an active safety tool.

The Remote Adjustment Logic: Inside the housing, behind the primary glass, is a 4-way electric motor actuator. This allows the driver to remotely adjust the mirror’s angle (up/down/left/right) from a switch inside the cab. This is a critical safety and convenience feature, allowing for precise adjustments without leaning or stopping.

منطق التدفئة: Laminated to the back of both mirror glass panels is a heating element, similar to a rear window defroster. This element is tied to the truck’s defrost circuit. عند تفعيلها, it quickly melts ice and evaporates fog or mist from the mirror’s surface, ضمان 100% visibility in poor weather. A non-heated mirror is a major liability in cold or wet climates.

The Wiring Harness Logic: The mounting arm of the مرآة الرؤية الخلفية اليسرى FAW J6P is hollow, acting as a protected conduit. A factory-sealed wiring harness runs from the motor and heater, through this arm, and into the door, where it connects to the main body harness. This design protects the wires from snagging, UV damage, and water intrusion.

منطق الخدمة (كهربائي): Electrical faults are common service items. A technician diagnosing a non-functional مرآة الرؤية الخلفية اليسرى FAW J6P would first check the fuse, then the switch, and finally the integrity of this harness connector in the door. The motors and heating elements are considered part of the main 8202015-A01J assembly and are not typically replaced individually.

جوهر 3: ال “جمالي & واجهة” منطق (الغلاف)

هذا المكون هو “finishing touch” that hides the mounting hardware and integrates the مرآة الرؤية الخلفية اليسرى FAW J6P with the cab’s interior.

1. عنصر: ‘Left Lower Mounting Base Decorative Cover’ (8202021-أ01) – الكمية 1
هذا (علامة 2) is a precision-molded plastic trim piece. Its sole function is cosmetic and integrative. It is the last part to be installed.

The Concealment Logic: The primary job of this cover is to hide the “ugly” parts of the installation. Once the مرآة الرؤية الخلفية اليسرى FAW J6P is securely bolted on (with Core 4 السحابات), this cover snaps into place over the mounting flange and the bolt heads.

المنطق الجمالي: This part (8202021-أ01) is molded with a specific color and “grain” texture to perfectly match the truck’s A-pillar and door panel trim. This creates a seamless, factory-finished look, rather than exposing a raw metal bracket.

منطق الخدمة: This is the first part a technician must remove to service the مرآة الرؤية الخلفية اليسرى FAW J6P. It is almost always held on by hidden plastic clips. A plastic trim-removal tool must be used to carefully pry it off without breaking these clips or scratching the surrounding paint. These covers are fragile and a common replacement item during mirror service.

جوهر 4: ال “Secure Fastening” منطق (البراغي)

This group of fasteners is the final, and most critical, link. They are all that holds the entire مرآة الرؤية الخلفية اليسرى FAW J6P assembly to the truck, fighting against constant wind-force and vibration.

1. عنصر: 'برغي تركيبة غطاء رأس المقبس’ (T2180630F6) – الكمية 5
هذا (علامة 3) is a set of five identical, مسامير عالية القوة.

The Socket Head Logic: The part name ‘Socket Head Cap Screw’ (内六角圆柱头) specifies an Allen-key (hex) يقود. هذا اختيار هندسي متعمد. This type of drive allows for very high torque to be applied in a confined space (أي., inside the door frame) where a large socket wrench cannot fit. It also provides a secure, non-slip grip, منع “rounding off” that can happen with a Phillips screw.

The Combination Logic: The term ‘Combination Screw’ (المسمار الجمع) أمر بالغ الأهمية. It means each bolt (T2180630F6) لديه مثبتة مسبقا, “أسير” غسالة القفل. This is the single most important feature for a component subject to extreme, اهتزاز مستمر.

This captive washer exerts constant spring tension on the bolt, making it impossible for it to vibrate loose. وهذا ما يضمن مرآة الرؤية الخلفية اليسرى FAW J6P stays rigid and rattle-free for years.

منطق الخدمة: أ “تهتز” mirror is almost always caused by these five bolts losing torque. A technician must remove the decorative cover (جوهر 3) to access and re-torque these fasteners. عند تثبيت جديد مرآة الرؤية الخلفية اليسرى FAW J6P, these bolts must be tightened in a star pattern to ensure the mounting flange sits perfectly flat against the door frame.

مرآة الرؤية الخلفية اليسرى FAW J6P: أكمل الانهيار المكون من 3 أجزاء

الجدول التالي يوفر كامل, تفصيل مفصل للجميع 3 أنواع المكونات المحددة ل مرآة الرؤية الخلفية اليسرى FAW J6P النظام على FAW Jiefang CA3250P66K2L1T1E 6×4 تفريغ الشاحنة.

المواصفات الأساسية

المواصفات ل مرآة الرؤية الخلفية اليسرى FAW J6P are defined by its role as an active, في جميع الأحوال الجوية, multi-view safety system.