Assemblage logique FAW pour canalisations de climatisation et de chauffage: Décodage 9 Composants de confort essentiels

Bienvenue dans cette critique “logique de confort” analysis of the Assemblage logique FAW pour canalisations de climatisation et de chauffage (Assemblée 716). C'est le complet, 9-type de composant, “système circulatoire” for the *heating* half of the HVAC system on the FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur. Cette assemblée est la “logique” system that safely transports hot engine coolant (antifreeze) from the engine block to the in-cab ‘Heater Core’ (Assemblée 709).

Le “logique” de la Assemblage logique FAW pour canalisations de climatisation et de chauffage is to act as a durable, leak-proof, and heat-resistant “plomberie” réseau. It is designed to withstand 90-100°C temperatures, 15-20 PSI of pressure, and constant, high-frequency engine vibration. This system is the key to providing reliable cab heat for driver comfort and vital defrosting capabilities for the ‘Front Windscreen’ (Assemblée 630).

This in-depth guide is essential for HVAC technicians and parts managers. Nous déconstruirons l'ensemble Assemblage logique FAW pour canalisations de climatisation et de chauffage dans son 9 types de composants réparables distincts. Nous analyserons le “multicouche” logic of the main ‘Inlet/Outlet Hoses’, le “fume-seal” logic of the ‘Joints’, et la critique “anti-frottement” logic of the 17-piece clamp, support, and fastener system.

Cœur 1: Le “Heat Transport” Logique (Composants 1 & 2) (Le “Plus long” Module)

Le “artères” de la Assemblage logique FAW pour canalisations de climatisation et de chauffage are its two main hoses. These are the primary serviceable components in this system.

1. Composant 1: « Tuyau d'arrivée’ (8116711-90U)

C'est le “fournir” doubler. C'est “logique” is to tap into the engine’s cooling system (Par exemple, at the cylinder head or water pump) and transport *hot* (90°C+) coolant *to* the ‘Heater Core’ (Assemblée 709) à l'intérieur de la cabine.

“Multi-Layer” Logique: This is not a simple rubber tube. C'est un “multicouche” composite hose, typically made of an inner EPDM (Monomère d'éthylène propylène diène) caoutchouc, a central “rayon” ou “aramid” fiber reinforcement braid, and a tough, abrasion-resistant outer EPDM cover. Ce “logique” is critical for:

• Pression: The fiber braid allows the hose to withstand the 15-20 PSI of the cooling system without swelling or bursting.
• Chemical: The EPDM inner lining is chemically inert, preventing it from being degraded by the ethylene glycol (antifreeze) in the coolant.

2. Composant 2: ‘Outlet hose’ (8116712-90U)

C'est le “retour” doubler. After the coolant has “dumped” its heat into the ‘Heater Core’ (709), this hose’s “logique” is to transport the (now cooler) coolant *back* to the engine’s cooling system (Par exemple, to the radiator or water pump) to be re-heated.

3. Le “Molded-Fit” Logique (Both Hoses):

Le plus critique “logique” of these hoses is their shape. They are not straight. Ils sont “pre-molded” at the factory into a specific, 3D shape. Ce “logique” is essential for a safe, reliable installation. The pre-molded bends are designed to *perfectly* route the hose around the hot ‘Exhaust Manifold’ (Assemblée 132), the moving steering column, and the vibrating engine block.

Facilité d'entretien: Hoses are the #1 failure point in a heating system. Après 5-10 années, the EPDM rubber hardens, becomes brittle, et “cold-leaks” at the ‘Clamps’ (Composant 3), or develops “points faibles” and bulges, which can lead to a catastrophic burst. A burst heater hose will rapidly drain the engine of coolant, conduisant à une surchauffe. This makes these hoses a critical, high-wear serviceable part.

Cœur 2: Le “Interface & Ancre” Logique (Composants 5, 7, 8)

Ce groupe de composants est le “infrastructure” de la Assemblage logique FAW pour canalisations de climatisation et de chauffage.

Composants 5 & 7: ‘Water pipe joint’ (8116061-90U & 8116703-590): Ce sont les “interface” logique. Ce sont les “firewall pass-throughs.”

Leur “logique” est de fournir un “bulkhead” connexion, allowing the rubber ‘Inlet/Outlet Hoses’ to safely pass through the cab’s metal firewall (‘Welded Cab Assembly’ 617). They are made of corrosion-proof polymer or brass. Their most critical “logique” is the integrated “passe-fil,” which creates a 100% joint hermétique. Ce “fume-seal” logic is a safety feature that prevents engine bay fumes (CO) d'être “sucé” into the cab’s HVAC intake.

Composant 8: ‘Heater water pipe fixed bracket’ (8116074-91W): C'est le “ancre” logique. A long, 1-meter hose, full of heavy water and vibrating with the engine, est un “uncontrolled” composant. Ce support est “logique” est d'être le “ancre,” securely fastening the hoses (via clamps) au châssis. Ce “anti-frottement” logic prevents the hoses from rubbing against the frame, which would eventually wear a hole.

Cœur 3: Le “Anti-Leak” & “Anti-frottement” Logique (Composants 3, 4, 6, 9)

This final group of 11 components is the “logique de fixation” pour le Assemblage logique FAW pour canalisations de climatisation et de chauffage.

Composants 3 & 6: ‘Worm-drive hose clamp’ (CQ67627B / CQ67635B) – Quantité 4 total: C'est le “joint haute pression” logique. These are *not* simple spring clamps. UN “worm-drive” (screw-type) clamp provides a 360-degree, couple élevé “serrage” forcer. Ce “logique” is what seals the rubber ‘Hoses’ (1 & 2) onto the metal/plastic ‘Joints’ (5 & 7), ensuring a leak-proof fit under 15+ PSI of pressure.

Composant 4: ‘Plastic retaining strap’ (T67427946) – Quantité 6: C'est le “anti-frottement” logique. Ces 6 sangles (attaches zippées) are critical serviceable parts. Leur “logique” is to bundle the “entrée” et “sortie” hoses together and/or secure them *away* from other components (like the steering shaft). A missing strap is a primary cause of a “frotter” hose leak.

Composant 9: « Boulon combiné’ (CQ1460620) – Quantité 1: C'est le “anti-vibration” logique. This single bolt is used to mount the ‘Fixed Bracket’ (Composant 8) au châssis. Le “Combinaison” (combinaison) logic is its *captive lock washer*, which prevents the bracket from vibrating loose.

FAW Logic Assembly For Air Conditioning And Heating Pipework Parts List

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 9 types de composants identifiés dans le Assemblage logique FAW pour canalisations de climatisation et de chauffage pour le tracteur FAW CA4251P66K24T1A3E5.

Caractéristiques

Les spécifications pour le Assemblage logique FAW pour canalisations de climatisation et de chauffage are defined by its function as the high-pressure, haute température “système circulatoire” for the cab heater.