Joint secondaire de porte avant: Déconstruction 2 Pièces critiques pour une protection parfaite de l’environnement

This technical guide provides a detailed deconstruction of the Joint secondaire de porte avant assemblage pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. This component is a crucial element in the vehicle’s “double joint” cab system. Nous analyserons le 2 critical parts, the seal itself and its mounting structure, to understand its role in weatherproofing.

Le Joint secondaire de porte avant, also known as a door-mounted seal, works in conjunction with the primary (body-mounted) joint. Its core logic is to create a “second line of defense” against the elements. Positioned on the door itself, it seals against the cab’s inner flange, creating an air-gap “dead zone.” This system is vital for preventing water, poussière, and wind noise from entering the cab, especially in the extreme conditions faced by a CA3250P66K2L1T1E truck.

Cœur 1: Le “Dual-Zone Sealing” Logique (The Seal Itself)

This first component is the functional core of the assembly. It is the part that actively creates the seal, and it is provided as two distinct parts for the left and right sides of the vehicle.

1. Composant: ‘Left front door secondary seal’ (6107061-A01-C00) – Quantité 1
2. Composant: ‘Right front door secondary seal’ (6107062-A01-C00) – Quantité 1
These two part numbers constitute the complete set of the Joint secondaire de porte avant for the vehicle.

Le Door-Mounted Logic is the first key principle. Unlike the primary seal (which is on the cab body), ce Joint secondaire de porte avant is attached directly to the perimeter of the door itself. This design is critical. It means the seal travels *with* the door, ensuring it is never scuffed, déchiré, or dislodged by personnel entering or exiting the cab.

Le Profile and Material Logic is similar to other high-grade automotive seals. This component is made from a durable EPDM (Monomère d'éthylène propylène diène) caoutchouc. This material provides exceptional resistance to ozone, UV light, and temperature extremes, preventing it from cracking or hardening over time.

Its profile typically features a hollow “ampoule” section. This is the part that compresses against the cab body’s inner metal flange when the door is closed. This compression creates the airtight and watertight barrier. The hollow design allows it to compensate for minor misalignments and to absorb the shock of a door slam, preventing a harsh “clang” and contributing to a quieter cab.

Le Logique d'amortissement acoustique est le secondaire, but equally important, fonction du Joint secondaire de porte avant. By creating a second, separate seal, it forms an “acoustic dead zone” in the channel between the primary seal and the secondary seal.

This trapped air gap is highly effective at disrupting and absorbing sound waves, particularly high-frequency wind noise. Ce “double joint” system is a hallmark of modern cab design, drastically reducing driver fatigue by creating a much quieter working environment. This is a key feature for the FAW Jiefang CA3250P66K2L1T1E.

Mise en place du Joint secondaire de porte avant (6107061-A01-C00 or 6107062-A01-C00) typically involves a series of pre-installed clips or a press-fit channel that engages with a groove or holes on the door’s inner structure.

Cœur 2: Le “Fondation structurelle” Logique (The Door Assembly)

This second group of components is not part of the seal itself, but represents the foundational structure to which the Joint secondaire de porte avant monte. A seal cannot function without a precise, rigide, and correctly shaped base.

1. Composant: ‘Left front door welded assy’ (6100055-B27) – Quantité 1
2. Composant: ‘Right front door welded assy’ (6100060-B27) – Quantité 1
C'est le complet, welded-shut door shell for the FAW Jiefang CA3250P66K2L1T1E.

Le Mounting Flange Logic is the most important concept here. The ‘Left front door welded assy’ (6100055-B27) is not just a flat panel. Its inner perimeter is stamped and formed into a precise channel or flange. This flange is the “track” que le Joint secondaire de porte avant is designed to follow.

The shape, courbure, and angle of this flange are all critical. They are engineered in tandem with the seal’s profile to ensure that when the Joint secondaire de porte avant est installé, it is held at the perfect angle and position. This ensures that the seal’s bulb compresses uniformly against the cab body.

Le Logique de rigidité est également la clé. The ‘Right front door welded assy’ (6100060-B27) is a large, structurally rigid component. This rigidity is essential to the sealing system. The door must not flex or twist during vehicle operation, even on rough terrain.

If the door frame were to flex, it would create gaps between the Joint secondaire de porte avant and the cab body, instantly compromising the seal and allowing noise, eau, and dust to enter. The ‘welded assy’ provides the robust, stable platform necessary for the soft, flexible seal to do its job effectively.

Donc, le Joint secondaire de porte avant assembly is a system of two parts: the soft, flexible seal (Cœur 1) and the hard, rigid door structure (Cœur 2). They are listed together in this breakdown because one cannot be serviced or understood without the other.

A technician replacing a worn Joint secondaire de porte avant must first inspect the door’s mounting flange (part of 6100055-B27 or 6100060-B27) for any damage, rust, or deformation. A bent flange will prevent even a brand new seal from functioning correctly.

Joint secondaire de porte avant: Répartition complète en 2 parties

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 2 types de composants dans le Joint secondaire de porte avant assemblage pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau.

Spécifications de base

Les spécifications pour le Joint secondaire de porte avant are defined by its role as the door-mounted part of a dual-seal weatherproofing system.