Blocage du sol FAW: Le 7 MSU essentiels pour un séjour tranquille, Cabine antirouille

Welcome to this essential guide on the Blocage du sol FAW assemblée. This is the complete 30-piece kit of engineered seals, œillets, and plugs for the FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur. These components are not cosmetic; they are a critical first-line defense for the cab’s integrity. Their core “logique” is to create a hermetic, “triple-threat” seal for the cab’s floor pan, protecting the driver and the vehicle from noise, eau, and fumes.

Le Blocage du sol FAW system is a foundational component of the cab’s Noise, Vibration, et la dureté (Nvh) emballer. Le “logique” of this kit is to permanently seal the various access and drainage holes left in the sheet metal during the manufacturing (stamping, e-coating) processus. Leaving these holes open would allow a direct path for engine noise, road spray, and dangerous exhaust gases to enter the cab.

This in-depth guide is a vital resource for body shop technicians, spécialistes des collisions, et gestionnaires de pièces. Nous déconstruirons l'ensemble Blocage du sol FAW kit into its 7 Unité minimale utilisable distincte (MSU) genres. Nous analyserons la science des matériaux, the multi-functional sealing “logique,” and the specific location logic for each of the 30 pièces.

Le “Triple joint” Logique: Bruit, Eau & Fume Barrier

Le Blocage du sol FAW assembly is not about aesthetics; it is about “sealing logic.” A single missing plug can compromise the entire cab environment. This 30-piece kit provides three critical barrier functions.

1. Acoustic Sealing (Logique NVH):

La primaire “logique” is to block noise. The cab sits directly over the engine, transmission, and road. A single un-plugged hole acts as a “sound leak,” allowing low-frequency engine drone and high-frequency tire/wind hiss to enter the cab. This noise dramatically increases driver fatigue.

Ces Blocage du sol FAW plugs are made from dense, heavy EPDM rubber. They function as “acoustic dampers,” a key part of the ‘Soundproofing Pad’ système (Assemblée 623). They have the mass to block and reflect sound waves, ensuring the cab remains quiet.

2. Eau & Corrosion Sealing Logic:

C'est le “logique” of longevity. The front tires constantly spray water, boue, and corrosive road salt against the underside of the cab. S'il manque une prise, this moisture is injected *under* the cab’s floor covering.

This trapped moisture saturates the sound deadening pads, which acts like a sponge against the bare metal floor. C'est le #1 cause of cab floor rust-out, which rots the cab from the inside. A single missing Blocage du sol FAW plug can destroy a floor pan.

3. Fumée & Air Sealing Logic:

C'est le primaire “safety logic.” The plugs on the firewall (‘Front Panel’) and transmission tunnel are a gas-tight seal. They prevent deadly, odorless Carbon Monoxide (CO) fumes from a potential exhaust leak from entering the driver’s breathing space.

This seal also stops drafts, poussière, and hot/cold air. Ce “logique” is key to HVAC efficiency. By sealing these leaks, le Blocage du sol FAW kit ensures the A/C and heater can maintain temperature without running constantly, économiser du carburant.

Matériel & Logique de conception: EPDM Rubber

Le Blocage du sol FAW plugs are not made from simple plastic. They are high-tech MSUs made from a specific material: EPDM (Monomère d'éthylène propylène diène) caoutchouc.

Logique matérielle: EPDM is the “logique” choice for this hostile environment.

• Résistance à la température: It will not get brittle and crack at -40°C, and it will not melt or get soft at +120°C from exhaust heat.
• Chemical Resistance: It is highly resistant to water, sel de déneigement, huile, carburant diesel, and brake fluid.
• Ozone/UV Resistance: The plugs on the firewall are exposed to engine bay ozone and UV light. EPDM will not crack or dry-rot like natural rubber.

Logique de conception: These MSUs are designed for a one-way, “push-in” installation. Each plug features a deep “rainure” around its circumference. Le “logique” is that the plug is pushed through the sheet metal hole until the metal “snaps” into this groove. This creates a 360-degree, “interference fit” that is both waterproof and vibration-proof, ensuring the plug *cannot* be shaken loose.

Déconstruire le 7 Types de MSU (Le “Plus long” Module)

Le Blocage du sol FAW kit contains 7 distinct part numbers (MSU), totalisant 30 pièces. Ce “logique” of having so many types is for precision. Each plug is precision-molded to fit a *specific* hole’s shape and diameter.

MSU 7: Firewall Plugs (Quantité 2)

The ‘Round plug C-front panel’ (5302808-A01) is designed for the “panneau avant” (pare-feu). These two plugs seal holes in the vertical wall separating the driver from the engine.

MSU 1-6: Floor Pan Plugs (Quantité 28)

Ces 28 plugs are the main components of the Blocage du sol FAW trousse, and they seal the horizontal floor of the cab. They are grouped by shape.

Round Plugs (MSU 1, 4, 5):

• ‘Hole plug B’ (5109566-A95) – Quantité 2
• ‘Round plug D-floor’ (5109614-A01) – Quantité 2
• ‘Round plug B-floor’ (5109617-A01) – Quantité 2

Le “logique” de ceux-ci 6 round plugs is to seal circular holes, likely from manufacturing alignment pins or small drainage holes. Le “B,” “C,” et “D” designations refer to specific, non-interchangeable diameters.

Oblong Plugs (MSU 2, 3, 6):

• ‘Oblong plug B-floor’ (5109612-A01) – Quantité 12
• ‘Oblong plug D-floor’ (5109613-A01) – Quantité 9
• ‘Oblong plug C-floor’ (5109619-A01) – Quantité 1

Le “logique” de ceux-ci 22 oblong plugs is to seal the non-circular holes. The cab floor is stamped with ribs for strength. Le “valleys” of these ribs are a common place for oblong drainage and access holes, and these MSUs are molded to fit them perfectly.

Each of these 7 part numbers is a distinct MSU. When servicing a cab (Par exemple, replacing the ‘Floor Insulation Underlay’), it is critical to inspect for any missing or damaged plugs. Each missing plug must be replaced with the *exact* part number to ensure a perfect “interference fit” joint.

FAW Floor Blockage Parts List

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 7 types de composants identifiés dans le Blocage du sol FAW ensemble pour tracteur FAW CA4251P66K24T1A3E5.

Spécifications techniques et contexte d'assemblage

Les spécifications pour le Blocage du sol FAW kit are defined by its function as a complete sealing system for the cab-in-white. All components are critical MSUs for cab integrity.