Porte d'entrée FAW: Le 11 MSU critiques pour la sécurité essentielle & Accéder

Welcome to this critical structural analysis of the Porte d'entrée FAW assemblée. C'est le complet, 11-component-type “door-in-white” and trim assembly for the FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur semi-remorque diesel. This is the primary “safety cell” for the driver, a complex, multi-function “logique” assembly designed to provide side-impact protection, all-weather sealing, and the mounting foundation for all driver controls and electronics.

Le Porte d'entrée FAW is far more than a simple panel. C'est “logique” is to be a fully integrated, modular system. This includes the ‘Welded Assy’ (the structural steel shell), the ‘Sealing Strip’ and ‘Waterproof Membrane’ (the dual-seal logic), the ‘Window Glass’ and ‘Lifter Assy’ (the visibility logic), and the ‘Trim Panel’ (the HMI and NVH logic).

This in-depth guide is essential for collision repair specialists, body shop technicians, and parts managers. Nous déconstruirons l'ensemble Porte d'entrée FAW assemblée, analyzing all 11 Minimum Serviceable Unit (MSU) genres. We will explore the “safety beam” logic of the door shell, le “water curtain” logic of the membrane, le “tempered” logic of the glass, et le spécifique, high-tensile fastener system that holds this critical assembly together.

Cœur 1: Le “Safety Cell” Logique (MSU 1 & 8) (Le “Plus long” Module)

La fondation du Porte d'entrée FAW is its primary structural MSU: the ‘Left front door welded assy’ (6100055-B27) and ‘Right front door welded assy’ (6100060-B27). C'est le “Door-in-White” (DIW), the bare, unpainted, welded steel shell. C'est “logique” est 100% about safety and rigidity.

Side-Impact Safety Logic: This MSU is not a hollow, single-layer panel. Welded *inside* this shell is a **high-strength steel intrusion beam**. Ce “guard beam” is a horizontal bar of hardened (often Boron) acier. C'est “logique” is to be the primary energy-absorbing component in a side-impact collision. It is designed to resist intrusion into the cab, protecting the driver’s “survival space” (their hips and torso).

Structural & Hinge Logic: This welded shell is also the “châssis” for all other MSUs. C'est “logique” is to provide absolute rigidity. Le Porte d'entrée FAW is a heavy component, and it must *never* sag or flex. This shell features precision-stamped, reinforced mounting points for the door hinges.

The ‘Hexagon flange bolt’ (Q1840612), MSU 8, is the hardware for this. Le “logique” de ceux-ci 12 high-tensile, flanged bolts is to create the load-bearing connection between these hinge points and the cab’s structural A-pillar. They are designed to resist the immense “tondre” force of the door’s weight.

Facilité d'entretien (MSU): The ‘Welded Assy’ is the primary MSU in any collision repair. Its precise geometry is critical. Even a slightly-bent Porte d'entrée FAW shell will fail to seal against the ‘Sealing strip’ (MSU 3), resulting in a “whistling” wind noise and water leaks. It is designed for replacement, not repair.

Cœur 2: Le “Dual-Seal” Weather Logic (MSU 3 & 11)

Le Porte d'entrée FAW‘s “comfort logic” is defined by its two-part sealing system. This is not just one gasket, but a “dual-seal” defense.

MSU 3: ‘Front door sealing strip’ (6102187-A01 / 6102188-A01): C'est le “Primary Seal.” C'est le grand, hollow-core EPDM rubber weatherstripping that attaches to the door shell. C'est “logique” is to provide the “compression seal.” When the door is closed, this gasket is “squeezed” against the cab body, creating the primary barrier that blocks wind noise, eau, poussière, and fumes.

MSU 11: ‘Waterproof membrane-front panel’ (5302821-A01): C'est le “Secondary Seal,” ou “Water Curtain.” This is one of the most critical MSUs for cab longevity. Le “logique” of a modern door is that it is *designed to get wet inside*. Water from the ‘Window Glass’ (MSU 2) drains *inside* the door shell.

This membrane (un grand, adhesive-backed plastic sheet) est le “logique” that stops that water. It is applied to the *inner* door shell (under the trim panel). It covers the large service holes, acting as a “curtain” that directs the water *down* to the drain holes at the bottom, preventing it from soaking the ‘Trim Panel’ (MSU 4) and leaking onto the cab floor. A torn membrane *will* cause a water leak.

Cœur 3: Le “Visibility” Logique (Window System MSUs 2, 5, 6)

This sub-assembly within the Porte d'entrée FAW controls visibility and ventilation.

MSU 2: ‘Front door glass’ (6103021-A01 / 6103022-A01): C'est le “Tempered Safety Glass” MSU. Unlike the front windscreen (laminated), this side glass has a “dicing” logique. It is tempered, making it 4-5x stronger than normal glass. If it breaks, c'est “logique” is to shatter into thousands of tiny, harmless “pebbles,” preventing injury and allowing for emergency egress.

MSU 5: ‘Window lifter assy’ (Multiple P/Ns): C'est le “muscle” that lifts the glass. Le “logique” of the parts list shows *both* manual (B27) and electric (AA01) choix.

• Manuel (B27): UN “scissor-lift” régulateur.
• Électrique (AA01): A cable-driven regulator with a 24V DC motor, connected to the ‘Door Controller’ (Assemblée 588).

MSU 6: ‘Window lifter handle assy’ (6104045-A01): This MSU is the “interface” for the *manual* (B27) window lifter.

Cœur 4: Le “IHM & Fastener” Logique (MSU 4, 7, 9, 10)

This final group covers the driver-facing panel and the hardware that holds the Porte d'entrée FAW together.

MSU 4: ‘Front door trim panel assy’ (6101415-A01 / 6101420-A01): C'est le “Human-Machine Interface” (IHM) et “Nvh” logique. It’s the molded, cosmetic panel that houses the door handle, speaker, and window switches/handle. C'est “logique” is to provide a durable, “soft-touch,” and aesthetically pleasing surface. It also has a thick “sound-deadening” mat on its back, acting as the final “acoustic absorber” for road noise.

L'attache “Logique” (MSU 7, 9, 10): C'est le “anti-vibration” logique.

• MSU 7 & 10 (Screws & Noix): Used to mount the ‘Lifter handle’ (MSU 6).
• MSU 9 (‘Combination screw’): Ces 12 les boulons sont les “anti-vibration” logique. They have a captive lock washer. Leur “logique” is to securely mount the high-vibration ‘Window lifter assy’ (MSU 5) to the metal door shell (MSU 1) without it ever shaking loose.

FAW Front Door Parts List & Caractéristiques

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 11 types de composants identifiés dans le Porte d'entrée FAW ensemble pour tracteur FAW CA4251P66K24T1A3E5.

Caractéristiques

Les spécifications pour le Porte d'entrée FAW sont définis par sa fonction de multi-parties, sealed, structural safety cell and HMI-mounting system.