Radiateur FAW, Garde de ventilateur, Tuyauterie, Support: Un guide expert sur son 28 Composants

Bienvenue dans ce guide technique expert sur le Radiateur FAW, Garde de ventilateur, Tuyauterie, Support assemblée, the complete engine cooling and thermal management system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur semi-remorque diesel. This system is critical for engine performance and longevity.

Le Radiateur FAW, Garde de ventilateur, Tuyauterie, Support est un complexe, assemblage en plusieurs parties. It is not just the ‘Radiator Assembly’ (1301010-61C) lui-même, but also the ‘Fan Guard Assembly’ (1309010-76UN) that optimizes airflow, the complete set of ‘Piping’ (hoses and tubes) that circulates the coolant, and the robust ‘Bracket’ system that isolates this entire assembly from engine vibration.

Ce guide détaillé est une ressource essentielle pour les techniciens professionnels, gestionnaires de flotte, et spécialistes des pièces détachées. Nous déconstruirons l'ensemble Radiateur FAW, Garde de ventilateur, Tuyauterie, Support système dans son 28 composants réparables, explaining the critical function of each part to ensure a reliable, réparation sans fuite.

Composant principal: The Radiator Assembly (1301010-61C)

Le coeur du Radiateur FAW, Garde de ventilateur, Tuyauterie, Support system is the ‘Radiator Assembly’ (1301010-61C). This is the main liquid-to-air heat exchanger. Its sole purpose is to dissipate the immense waste heat generated by the diesel engine. Hot coolant (antigel) from the engine is pumped into the radiator’s inlet tank.

This coolant then flows through hundreds of small, thin aluminum tubes. These tubes are interwoven with thousands of delicate aluminum fins, which create a massive surface area. As the truck moves, or when the engine fan engages, cool ambient air is forced through these fins. This airflow “tire” the heat from the coolant, which then collects in the outlet tank to be recirculated back into the engine.

This component is the single most important part of the Radiateur FAW, Garde de ventilateur, Tuyauterie, Support assemblée. A failure here—either a leak from corrosion or a clog from contaminated coolant—will quickly lead to engine overheating and catastrophic damage like a cracked cylinder head or warped block.

Le “Garde de ventilateur”: Ensemble de linceul des ventilateurs (1309010-76UN)

The ‘Fan guard assembly’ (1309010-76UN), also known as the fan shroud, est le “Garde” composante du Radiateur FAW, Garde de ventilateur, Tuyauterie, Support. It is not just a safety guard. Ce grand, precisely molded polymer duct is an essential performance component.

Its primary function is to optimize airflow. It creates a “tunnel” that seals the area between the radiator core and the engine-driven fan. This prevents air from “recirculating” (being drawn from the engine bay instead of from outside) and ensures that the fan pulls air across the *entire* surface area of the radiator core, not just the small circle directly in front of the fan blades.

A missing or cracked fan shroud can reduce the cooling system’s efficiency by as much as 30-40%, especially at low speeds or when idling in traffic. This component is a critical, engineered part of the Radiateur FAW, Garde de ventilateur, Tuyauterie, Support logique.

Le “Tuyauterie”: Main Coolant Hoses

Le “Tuyauterie” composants du Radiateur FAW, Garde de ventilateur, Tuyauterie, Support are the flexible arteries of the system. This includes the ‘Radiator inlet hose’ (1303011-74UN) and the ‘Radiator outlet hose’ (1303021-74UN).

**Tuyau d'arrivée (1303011-74UN):** C'est le “supérieur” tuyau. Il transporte le liquide de refroidissement le plus chaud (Par exemple, 90-100° C) from the thermostat housing on the engine *to* the radiator’s inlet tank. It must be reinforced to handle high pressure and high temperatures.

**Tuyau de sortie (1303021-74UN):** C'est le “inférieur” tuyau. It carries the “refroidi” coolant from the radiator’s outlet tank *to* the inlet of the water pump, to be recirculated. This hose is on the “succion” côté de la pompe, so it must be built with an internal spring or tough reinforcement to prevent it from collapsing under vacuum.

These hoses, along with the ‘Water pump has inlet pipe’ (1303062-74UN) and its ‘Water pump inlet pipe gasket’ (1307031-81D), are the primary circulation path. Un échec (fuir, éclatement, or collapse) in any of these pipes will lead to a rapid loss of coolant and engine overheating. Securing them with ‘Worm Drive Hose Clamps’ (CQ676-series) is critical to the Radiateur FAW, Garde de ventilateur, Tuyauterie, Support system’s integrity.

Le “Tuyauterie”: Deaeration and Return Lines

Le Radiateur FAW, Garde de ventilateur, Tuyauterie, Support system includes a secondary set of “tuyauterie” for deaeration (air bleeding) and heater circuits. Air bubbles trapped in the cooling system can cause “points chauds” in the cylinder head, leading to cracks.

The ‘Deaeration hose’ (1311062-61C) and ‘Radiator front deaeration hose’ (1311061A377) are small-diameter hoses that run from the highest points of the engine and radiator to the expansion tank (pas de photo). They allow trapped air and steam to “saigner” out of the system.

The system also includes a ‘Steel return water pipe assembly’ (1311035-61C), « Tuyau d'eau de retour’ (1311037-61C), ‘Front return water hose’ (1311038-61C), and ‘Return water pipe joint’ (1311036-377). C'est le “retour” circuit, most likely from the cab’s heater core and the fuel heater. This complex network of “tuyauterie” shows how the Radiateur FAW, Garde de ventilateur, Tuyauterie, Support is integrated with all other vehicle systems.

Le “Support” and Mounting System

Le “Support” composants du Radiateur FAW, Garde de ventilateur, Tuyauterie, Support are essential for isolating the fragile radiator core from the twisting, vibrating engine. The ‘Water Pump Bracket’ (1307046-81D) provides a rigid mount for the pump.

The ‘Radiator pull plate assembly’ (1302040-91W), dont il y en a deux, sont “stay rods” ou “tension rods.” These bolt to the top of the radiator and connect to the chassis, holding the radiator assembly rigid against fore-and-aft movement. Le « support »’ (1311083-61C) is a support for the complex deaeration and return piping, preventing it from chaffing.

Tout cela Radiateur FAW, Garde de ventilateur, Tuyauterie, Support system is secured with a large number of high-grade fasteners, y compris les « boulons à bride hexagonale’ (Q1840816, Q1840825, Q1841065), « Boulons combinés’ (CQ1460820, CQ1461025, CQ1460816), « Écrous hexagonaux’ (CQ34008, CQ34010), et « Joints à ressort’ (Q40308). These ensure that nothing vibrates loose.

Radiateur FAW, Garde de ventilateur, Tuyauterie, Bracket Parts List

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 28 components identified in the ‘Radiator, Garde de ventilateur, Tuyauterie, Support’ schéma du tracteur FAW CA4251P66K24T1A3E5. Ce Radiateur FAW, Garde de ventilateur, Tuyauterie, Support system is key to engine health.

Spécifications techniques et contexte d'assemblage

Les spécifications pour le Radiateur FAW, Garde de ventilateur, Tuyauterie, Support système sont définis par son complexe, multi-part design for total engine thermal management. L'ensemble Radiateur FAW, Garde de ventilateur, Tuyauterie, Support assembly is critical for engine health.