Ensemble logique de garde-boue arrière FAW: Un guide principal en 16 parties sur la protection totale des routes

Welcome to this critical safety and structural analysis of the Ensemble logique de garde-boue arrière FAW (Assemblée 707). C'est le complet, 16-component-type, robuste “splash and spray” suppression system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur semi-remorque diesel. This is not a cosmetic accessory; it is a primary “logique” assembly with a critical three-part function:

1. Logique de protection: To shield the chassis, ‘Air Tank’ (Assemblée 393), and ‘Brake Chamber’ (Assemblée 419) from a high-velocity “sandblast” of rocks, eau, sel, and road debris.

2. Safety Logic: To suppress “road spray” (atomized water) from the drive axles, which is a legal requirement in many regions to prevent blinding other motorists.

Le Ensemble logique de garde-boue arrière FAW is an engineered system of “de construction” et “sacrificiel” composants. Le “logique” is to create a rigid, vibration-proof steel “squelette” (the ‘Support Frames’ and ‘Brackets’) that then holds the large, “sacrificiel” polymer ‘Mudguard’ panels. This modularity is key to a low cost of ownership.

This in-depth guide is essential for fleet managers, body shop technicians, et spécialistes des pièces détachées. Nous déconstruirons l'ensemble Ensemble logique de garde-boue arrière FAW dans son 16 distinct component types. Nous analyserons le “structural skeleton” logique (frames, prend en charge, bases), le “protection skin” logique (the mudguards and deflectors), and the massive 62-piece “anti-vibration” fastener system.

Cœur 1: Le “Structural Skeleton” Logique (Composants 3-7) (Le “Plus long” Module)

La fondation du Ensemble logique de garde-boue arrière FAW is its “skeleton.” This is a 7-piece, modular, heavy-duty steel framework that anchors the entire assembly to the truck’s chassis rails. C'est le “plus long” and most critical part of the system.

1. Le “Main Frame” Logique (Composant 3):

The ‘Rear mudguard fixed support frame welded assy’ (5103505-91W) est le “colonne vertébrale” de l'assemblée. The list calls for four (4) de ceux-ci. Le “ensemble soudé” (焊接总成) logic means this is a fabricated, high-strength steel component.

Ce composant “logique” is to be the primary “anchor.” It bolts directly to the truck’s chassis frame (using fasteners 12 & 13) and acts as the main load-bearing “arm” that cantilevers *out* over the dual-drive axles. It is designed to be immensely rigid, resisting the constant “flapping” (vibration) of the mudguard.

2. Le “Sub-Frame” Logique (Composants 4 & 5):

The ‘Left/Right rear mudguard support’ (5103391-91W / 5103392-91W) are the secondary “logique” composants. These are the *vertical* supports. Leur “logique” is to bolt to the *end* of the ‘Main Frame’ (Composant 3), providing the vertical mounting “affronter” that the ‘Mudguard’ panels (Composants 1 & 2) actually attach to. Ce “sub-frame” logic creates a strong, modular “T” shape.

3. Le “Anchor Base” Logique (Composants 6 & 7):

The ‘Left/Right rear mudguard support fixed base’ (5103373-91W / 5103374-91W) sont les “chassis-side” anchors. Le “logique” of these components is to be the “mating flange.” They are the heavy-duty steel plates that bolt *to the chassis rail*. The ‘Main Frame’ (Composant 3) then bolts *to this base*.

Ce “modular” logic is for serviceability. Dans une collision, if the main arm (Composant 3) is bent, the technician can unbolt it from this “Base” (Composant 6/7) and replace it, without having to re-align a new bracket to the chassis frame itself. This entire 7-part (4+1+1+1) “squelette” is the core of the Ensemble logique de garde-boue arrière FAW.

Cœur 2: Le “Protection Skin” Logique (Composants 1, 2, 14, 15, 16)

This group of components is the “sacrificial skin” de la Ensemble logique de garde-boue arrière FAW. These are the parts designed to take the impact and be replaced.

Composants 1 & 2: ‘Left/Right rear mudguard’ (5103361-50UN / 5103362-50UN): Ce sont les principaux “mudguard” panels. Leur “logique” is to be a massive “shield.” They are molded from a durable, flexible, high-impact polymer. Ce “material logic” est la clé: they are flexible enough to “flap” without breaking, strong enough to deflect rocks, et 100% résistant à la corrosion.

Composants 15 & 16: '…Anti-spray deflector’ (5103381-54B / 5103382-54B): C'est le “Safety Logic.” Ces “deflectors” sont les “brush” ou “astroturf” style strips that hang from the mudguard’s edge. Leur “logique” is to *suppress spray*. They “catch” the fine, atomized mist of water and let it “drip” rather than “spray,” which is a legal requirement to prevent blinding other drivers.

Composant 14: '…Upper brace’ (5103466-50UN): C'est le “rigidity logic” for the plastic. Ce “brace” is a metal strip that bolts along the *top edge* of the plastic mudguard, preventing it from “sagging” ou “warping” au fil du temps.

Cœur 3: Le “Anti-vibrations” Logique de fixation (Composants 8-13)

C'est le “logique” that holds the Ensemble logique de garde-boue arrière FAW together. This system is subjected to the *worst* vibration on the entire vehicle (unsprung mass vibration). A standard fastener system would fail in hours.

Composants 8, 9, 11, 12 (‘Combination bolt’): The assembly uses a total of 40 “Combinaison” (combinaison) boulons. Le “logique” of these bolts is their *captive, rondelle frein pré-fixée* (Par exemple, a spring or serrated washer). This lock washer “morsures” into the steel, providing constant tension that is *immune to vibration*.

Composants 10 & 13 (‘Hexagon nut’): The assembly uses a total of 30 “Noix” to complete the “logique.” Ce sont “couple dominant” (Nyloc) lock nuts. Leur “logique” is a nylon insert that *grips* the bolt threads.

Ce “dual-fastener” logique (a lock washer on the bolt + a lock nut on the other end) creates a “failsafe” connection that *cannot* vibrate loose. This is why all 16 of these components are critical, “single-use” serviceable parts. Re-using a lock nut is a critical safety failure, as it will lead to the Ensemble logique de garde-boue arrière FAW detaching from the vehicle.

FAW Rear Mudguard Logic Assembly Parts List

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 16 types de composants identifiés dans le Ensemble logique de garde-boue arrière FAW pour le tracteur FAW CA4251P66K24T1A3E5.

Caractéristiques

Les spécifications pour le Ensemble logique de garde-boue arrière FAW are defined by its function as a safety-critical, modular “splash and spray” suppression system.