Section russe d’approvisionnement en urée de FAW: 10 Pièces critiques pour la conformité en matière d'émissions

Le Section russe d’approvisionnement en urée de FAW is a vital subsystem for the CA3250P66K24L1TE5Z dump truck, ensuring strict adherence to environmental regulations. By injecting DEF (Diesel Exhaust Fluid) dans le flux d'échappement, it neutralizes harmful NOx emissions. This guide details the plumbing and mounting hardware essential for keeping this SCR system operational in the harsh Russian climate.

Section russe d’approvisionnement en urée de FAW

Coolant Circuit: Preventing Urea Crystallization

Le Section russe d’approvisionnement en urée de FAW faces a unique challenge in sub-zero temperatures: urea solution freezes at -11°C. To counteract this, the system integrates a heating loop that circulates engine coolant.

The connection point for this thermal management is the Connecteur – SCR Water Intake (Partie no. 1160401-51B). This fitting taps into the engine’s water jacket, diverting hot coolant to the urea tank and dosing lines.

Maintaining a secure seal here is critical. Le Joint – Water Pipe Transition Flange (Partie no. 1160402-51B) ensures that high-pressure coolant does not leak externally.

Une fuite dans le Section russe d’approvisionnement en urée de FAW coolant loop would have a double negative effect: engine overheating and a frozen SCR system. Frozen urea lines lead to immediate engine derating (perte de puissance) by the ECU.

The return path for the coolant is managed by the Urea Return Water Connector (Partie no. 1160401-1063). This fitting ensures that the coolant, having transferred its heat to the urea system, flows back to the engine radiator efficiently.

Logique de connexion: Joints and Routing

The routing of fluid lines in the Section russe d’approvisionnement en urée de FAW is handled by specialized connectors. Le Circulating Water Connector (je) (Partie no. 1160403-51B) et Circulating Water Connector (II) (Partie no. 1160404-51B) are engineered for specific angles.

These angled connectors prevent kinks in the coolant hoses. A kinked hose restricts flow, reducing the heating efficiency of the urea tank. Dans l'hiver russe, even a partial restriction can lead to localized freezing in the dosing pump.

These connectors are typically made from corrosion-resistant brass or stainless steel. The chemical environment around the urea system is harsh; urea itself is corrosive to certain metals (like copper).

Donc, le Section russe d’approvisionnement en urée de FAW uses compatible materials to prevent galvanic corrosion at the connection points. Ensuring these fittings are tight and corrosion-free is a standard part of the pre-winter inspection.

Montage et isolation des vibrations

The plumbing and dosing components are secured by a series of brackets. The assembly includes three distinct types: Support (Partie no. 1160013-54W), Support (Partie no. 1160011-54W), et Support (Partie no. 1160014-54W).

These brackets in the Section russe d’approvisionnement en urée de FAW are designed to support the weight of the fluid-filled lines and prevent them from chafing against the chassis.

Vibration is the enemy of fluid lines. Without rigid support, the harmonic resonance of the diesel engine would cause the metal lines to fatigue and crack.

The brackets are secured using Boulons à bride hexagonale (Numéros de pièces. Q1840840 and Q1840820). The flange head design eliminates the need for loose washers, simplifying installation in tight spaces.

Properly torquing these bolts ensures that the Section russe d’approvisionnement en urée de FAW remains a static, secure assembly, immune to the shaking forces of the road and engine.

Liste de répartition des composants

Le tableau suivant répertorie les composants spécifiques composant le Section russe d’approvisionnement en urée de FAW. Using correct part numbers is essential for maintaining the emissions compliance and operational reliability of the CA3250P66K24L1TE5Z.

Diagnostic Protocols for Emissions Health

Diagnostiquer le Section russe d’approvisionnement en urée de FAW focuses on leak detection. White crystalline deposits around the Connecteur – SCR Water Intake or other fittings indicate a slow urea leak.

While the coolant itself leaves a different residue, the heat from the coolant pipe can cause leaking urea to crystallize rapidly. These crystals can corrode electrical connectors and metal brackets.

Check the condition of the coolant hoses connecting to the Circulating Water Connectors. If they feel spongy or brittle, the internal reinforcement may be failing.

A burst coolant hose here will drain the engine’s cooling system, conduisant à une surchauffe. Regularly verify the torque on the Boulons à bride hexagonale securing the brackets. Loose brackets allow hoses to rub, creating chafe points that eventually leak.

Conclusion: Compliance and Reliability

Le Section russe d’approvisionnement en urée de FAW is a critical enabler for modern, low-emission transport in Russia. By integrating a robust heating circuit, FAW ensures that the SCR system remains functional even in the deepest freeze.

Chaque composant, from the brass connectors to the steel brackets, is chosen for durability and corrosion resistance.

Pour les propriétaires de flotte, maintaining this system is not just about avoiding fines; it is about vehicle uptime. A frozen or leaking Section russe d’approvisionnement en urée de FAW will put the truck into “mode boiteux,” severely restricting speed and power. Using genuine parts guarantees that the thermal management properties of the system are preserved, keeping your fleet moving efficiently.