Panneau de garniture de seuil de porte FAW & Rails: 7 MSU critiques pour un silencieux, Sceau impeccable

Welcome to this in-depth technical analysis of the Panneau de garniture de seuil de porte FAW and Assembly Rail system. C'est le complet, 7-taper, multi-component assembly that forms the “lower half” of the ‘FAW Front Door’ (Assemblée 683) sur le FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur. This is not just a cosmetic piece; c'est un point critique “logique” assembly with a dual function.

Le “logique” de la Panneau de garniture de seuil de porte FAW system is twofold. D'abord, c'est le “Mechanical Logic” for the window, providing the rigid ‘Guide Rails’ and soft ‘Runnels’ that ensure the ‘Door Glass’ (Assemblée 683, MSU 2) moves up and down smoothly, silently, and with a perfect seal. Deuxième, c'est le “Nvh & Aesthetic Logic,” serving as the durable, visible trim panel that absorbs noise and gives the door its finished look.

This expert guide is essential for collision specialists and cab technicians. Nous déconstruirons l'ensemble Panneau de garniture de seuil de porte FAW assemblage dans son 7 Unité minimale utilisable distincte (MSU) genres. We will analyze the structural “guide rail” logique, le “sealing” logic of the runnels, le “acoustique” logic of the trim panel, et la critique “anti-vibration” fastener system.

Cœur 1: Le “Structural Track” Logique (MSU 1 & 4) (Le “Plus long” Module)

Ce groupe de MSU forme le “squelette” of the window lift mechanism inside the Panneau de garniture de seuil de porte FAW. C'est le “logique” of precision movement, ensuring the heavy door glass moves perfectly vertically.

1. MSU 1: '…Lower Guide Rail Assy’ (6101445-A01 / 6101450-A01)

These are the ‘Left/Right front door lower guide rail assy’. This is a critical structural MSU. C'est “logique” is to provide the main *lower* anchor and track for the ‘Window Lifter Assy’ (Assemblée 683, MSU 5). The lifter mechanism (whether electric or manual) must be bolted to a rigid, un-moving frame to provide the leverage needed to lift the heavy glass. This guide rail is that frame. It is precision-stamped from heavy-gauge steel and bolts directly to the ‘Welded Door’ (683) shell.

2. MSU 4: '…Rear Guide Rail’ (6101481-A01 / 6101482-A01)

These are the ‘Left/Right front door rear guide rail’. This is the second half of the “track” logique. While MSU 1 is the *lower* track, this MSU is the *vertical rear* track.

Le “logique” of this rail is to “capturer” the rear roller of the window lifter mechanism. As the glass goes up, this rail ensures it travels in a perfectly straight, vertical line, *parallel* to the front guide rail (MSU 2). Without this “anti-bind” logique, the glass would “chatter” ou “tilt” in its tracks, causing it to jam or shatter.

These two sets of rails (MSU 1 and MSU 4) work together to form the complete “guide logic” pour le Panneau de garniture de seuil de porte FAW‘s window system. They are the primary MSUs replaced after a side-impact collision, as even a slight “plier” in these tracks will cause the window to fail. They are secured by the ‘Hexagon flange bolts’ (MSU 3).

Cœur 2: Le “Silent Seal” Logique (MSU 2 & 5)

Ce groupe de MSU forme le “doux” interface for the window glass. C'est le “logique d'étanchéité” de la Panneau de garniture de seuil de porte FAW système.

MSU 2: '…Glass Front Runnel’ (6103053-A01 / 6103054-A01)

MSU 5: '…Glass Rear Runnel’ (6103057-A01 / 6103058-A01)

Ces “runnels” (滑槽) sont les “window channels” ou “glass guides.” They are the U-shaped, EPDM rubber and “flocked” (fuzzy) channels that the ‘Door Glass’ (683) actually slides into. Leur “logique” is threefold:

1. Logique d'étanchéité: They create a 100% waterproof and windproof seal around the edges of the glass, preventing leaks and wind noise.

2. Low-Friction Logic: Le “flocked” surface provides a soft, low-friction path for the glass, allowing it to slide easily and quietly, reducing the strain on the window lifter motor.

3. Anti-Rattle Logic: C'est le “NVH logic.” The soft, compressive rubber holds the glass panel firmly, preventing it from “cliquetis” against the metal door frame when driving over rough roads. These are critical MSUs, as they wear out over time, leading to leaks, wind noise, et “bruyant” fenêtres.

Cœur 3: Le “Aesthetic & Nvh” Logique (MSU 6)

This component, the ‘Left/Right front door lower trim panel assy’ (6101515-D04 / 6101520-D04), is the primary “human-facing” MSU of the Panneau de garniture de seuil de porte FAW assemblée.

Aesthetic Logic: C'est le “finishing” logique. C'est le grand, molded polymer panel that the driver sees at the bottom of the door. It is designed to be durable, scuff-resistant, and easy to clean. Il fournit le “automotive-grade” finish, hiding the “guts” of the door (the metal shell, the ‘Waterproof Membrane’ (683), and the guide rails).

Logique NVH: This panel is also a key “acoustique” composant. C'est “logique” is to be the final “sound absorber.” It is often molded from a dense, “acoustically dead” polymer and may have a fibrous “shoddy” pad on its back. Ce “logique” is to absorb in-cab noise (like the radio) and block road/tire noise from “leaking” through the door.

Cœur 4: Le “Dual-Fastener” Logique (MSU 3 & 7)

Le Panneau de garniture de seuil de porte FAW system uses two distinct fastener “logics” for its 20 total fasteners.

MSU 3: « Boulon à bride hexagonale’ (Q1840612F6) – Quantité 8

C'est le “Structural Logic” fastener. Ces 8 robuste, high-tensile bolts are used for *metal-to-metal* connections. Leur “logique” is to rigidly mount the structural ‘Guide Rails’ (MSU 1 & 4) to the door’s steel ‘Welded Assy’ (683). Le “bride” acts as a built-in lock washer, providing anti-vibration tension.

MSU 7: '…Vis combinée’ (Q2360616F6) – Quantité 12

C'est le “Panel Logic” fastener. UN “vis combinée” has a captive lock washer. Ce “anti-vibration” logic is essential for mounting “doux” ou “cosmetic” parties. Ces 12 screws are used to secure the ‘Trim Panel’ (MSU 6) and the ‘Runnels’ (MSU 2 & 5) to their brackets, ensuring a tight, rattle-free fit.

Panneau de garniture de seuil de porte FAW & Rails Parts List

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 7 types de composants identifiés dans le Panneau de garniture de seuil de porte FAW and Assembly Rail system for the FAW CA4251P66K24T1A3E5 tractor.

Caractéristiques

Les spécifications pour le Panneau de garniture de seuil de porte FAW assembly are defined by its dual-function role as a structural guide rail system and an aesthetic/acoustic trim panel.