Передняя противотуманная фара FAW и блок логики переднего указателя поворота: Основная экспертная информация

Welcome to this in-depth technical breakdown of the Передняя противотуманная фара FAW и блок логики переднего указателя поворота. Это полное, dual-function lighting system is an integral safety component for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. Его функция двоякая: to provide crucial visibility in adverse conditions and to clearly signal driver intent.

This analysis will deconstruct the entire Передняя противотуманная фара FAW и блок логики переднего указателя поворота from its complete form down to its smallest serviceable units, providing essential knowledge for technicians, менеджеры автопарка, и специалисты по запчастям.

Термин “Логическая сборка” signifies that this is not a simple, single-purpose light. It is a sophisticated, integrated housing that combines two distinct lighting functions, each with its own “логика” and performance requirements. This component is mounted low on the front bumper, placing it in a high-impact, high-vibration zone. Поэтому, its design, строительство, and mounting are all critical to its longevity and performance.

В этом руководстве, we will explore the core components that constitute the Передняя противотуманная фара FAW и блок логики переднего указателя поворота. We will identify the primary “Левый” и “Верно” assemblies as the main structural parts, and then drill down further to the true minimum serviceable units: the replaceable bulbs and the specific vibration-proof fasteners. Understanding this hierarchy is key to efficient diagnostics, ремонт, and parts procurement.

Основные сборки: «Левые»’ (3732015-91W-C00) & 'Верно’ (3732020-91W-C00)

Основные компоненты Передняя противотуманная фара FAW и блок логики переднего указателя поворота system are the two mirror-image units: the ‘Left front fog lamp & передний указатель поворота в сборе’ (Часть №. 3732015-91W-C00) and the ‘Right front fog lamp & передний указатель поворота в сборе’ (Часть №. 3732020-91W-C00). These are the main large-structure procurement items.

Дизайн “логика” of these combination units is crucial. Each unit integrates two functionally separate lamps into a single, aerodynamically efficient and robust housing. This integration saves space and simplifies bumper design, but it requires sophisticated internal engineering.

1. Fog Lamp Functional Logic: Эта часть Передняя противотуманная фара FAW и блок логики переднего указателя поворота addresses the challenge of poor visibility. Unlike standard headlights, which are mounted high and can cause a “white-out” glare by reflecting light off fog or snow, the fog lamp’s logic is different.

• Low Mounting: Positioned on the lowest part of the bumper, it aims to shine *under* the layer of fog, which often sits slightly above the road surface.
• Wide, Flat Beam: The internal reflector and lens optics are designed to project a very wide but vertically narrow beam. This illuminates the road surface, lane markings, and the curb.
• Serviceable Unit: The bulb (typically a high-penetration halogen like H3 or H11) is the true minimum serviceable unit. The assembly is designed with an access port at its rear, allowing for bulb replacement without removing the entire bumper.

2. Turn Signal Functional Logic: Эта часть Передняя противотуманная фара FAW и блок логики переднего указателя поворота provides a critical safety redundancy. While the main turn signals are located in the upper lamp cluster, this lower-mounted signal serves a different “логика.”

• Redundancy and Visibility: Он действует как “repeater,” ensuring the driver’s intent is visible to vehicles in the truck’s significant forward-low blind spot, particularly smaller passenger cars.
• Instant-On “Логика”: This component often uses an LED. The “логика” of an LED is its instant-on, instant-off capability, creating a sharp, urgent flash that is more eye-catching than the “мягкий” ramp-up of a traditional bulb.
• Serviceable Unit: Like the fog lamp, this bulb is also a minimum serviceable unit, designed to be replaced independently.

The housing itself is a critical, non-serviceable part of the assembly. It is constructed from high-impact, corrosion-proof polymers (like ABS) с прочным, UV-stabilized polycarbonate lens.

This lens is hermetically sealed to the housing to prevent water and dust ingress, which is the most common cause of failure for a Передняя противотуманная фара FAW и блок логики переднего указателя поворота. A breach in this seal leads to reflector corrosion, “запотевание” of the lens from the inside, and electrical shorts. If the housing or lens is cracked, the entire ‘Left’ or ‘Right’ assembly unit must be replaced.

Durability and Construction Deconstruction

The Передняя противотуманная фара FAW и блок логики переднего указателя поворота is engineered for survival. Its position on the front bumper exposes it to constant assault from road debris, high-pressure water, лед, and corrosive road salt. Its construction “логика” is entirely focused on mitigating these risks.

Lens and Sealing: The polycarbonate lens is the first line of defense. It is an optical-grade material that is both shatter-resistant and coated to resist yellowing from UV radiation. The “fluting” or complex optical patterns on the inside of the lens are not for show—they are precisely engineered to help shape the beam.

This lens is permanently bonded to the housing using gaskets or high-grade adhesives to create a “hermetic” (airtight) тюлень. This seal is the most important factor in the assembly’s lifespan.

Housing and Mounting Points: The rear housing is the structural backbone. It is molded from robust polymers, providing a rigid foundation for the lamp. Критически, it features four reinforced mounting points designed to accept the ‘Combination bolt’ (CQ1460620).

This four-point stance is essential. It provides the rigidity against which the lamp’s internal aiming mechanism operates. А Передняя противотуманная фара FAW и блок логики переднего указателя поворота must be aimed correctly to be legal and effective. This is typically done via a single adjustment screw. This screw tilts the *internal reflector* against the *fixed housing*.

Without this rigid, 4-point mounting, the entire assembly would vibrate or “колебаться,” making aiming impossible and rendering the “логика” of the beam useless. The Передняя противотуманная фара FAW и блок логики переднего указателя поворота relies entirely on this structural integrity.

Minimum Serviceable Unit 2: Застежка “Логика” (CQ1460620)

The second component type identified in the diagram, and a critical minimum serviceable unit, is the ‘Combination bolt’ (CQ1460620). В списке запчастей указано восемь., signifying a set of four for each of the two Передняя противотуманная фара FAW и блок логики переднего указателя поворота единицы.

This is not a standard bolt. The “Комбинация” (комбинированный болт) designation is key. This fastener is a pre-assembled component, with a captive (несъемный) spring washer and a captive flat washer already on its shaft. Этот “логика” is essential for assembly and reliability.

1. Логика устойчивости к вибрации: This is the primary function. A heavy-duty truck engine and road imperfections transmit constant, high-frequency vibrations to the bumper. A standard bolt would quickly vibrate loose. Пленник “Весенняя шайба” (стопорная шайба) exerts constant tension against the bolt head, preventing this loosening and ensuring the lamp’s aim remains true.

2. Error-Proofing Logic: In a high-speed assembly line or a busy repair shop, it is easy to forget a washer. The “комбинация” design makes this impossible. The technician cannot install the bolt without its accompanying washers, ensuring correct installation every time.

3. Load Distribution Logic: Пленник “flat washer” distributes the clamping force of the bolt head over a wider area of the assembly’s plastic mounting flange. This prevents the bolt head from cracking or “sinking into” the polymer housing as it is tightened. This fastener is an integral part of the Передняя противотуманная фара FAW и блок логики переднего указателя поворота система.

Передняя противотуманная фара FAW и блок логики переднего указателя поворота (572) Parts List

В следующей таблице представлена ​​полная, detailed breakdown of all serviceable components identified in the ‘Front Fog Lamp And Front Turn Signal Logic Assembly’ (572) схема трактора FAW CA4251P66K24T1A3E5.

Технические характеристики и контекст сборки

Технические характеристики Передняя противотуманная фара FAW и блок логики переднего указателя поворота are defined by its role as a safety-critical, all-weather visibility system. These specifications ensure compliance, долговечность, and serviceability for the FAW Jiefang CA4251P66K24T1A3E5. The Передняя противотуманная фара FAW и блок логики переднего указателя поворота is a non-negotiable component for safe operation.