Conduite de frein FAW J6P: Déconstruction 30 Pièces critiques pour une puissance de freinage impeccable

This is an in-depth technical guide to the Conduite de frein FAW J6P système, a critical safety network on the FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. Cette déconstruction analyse 30 primary serviceable components that form the complete pneumatic brake circuit, from the air compressor to the final brake hoses.

Le Conduite de frein FAW J6P system is a complex pneumatic network that powers the vehicle’s service brakes and parking brakes. Unlike a hydraulic system, this air brake system is engineered for the extreme demands of a heavy-duty dump truck, providing reliable stopping power under full load. Le Conduite de frein FAW J6P is responsible for generating, treating, storing, and distributing compressed air to all three axles, as well as the hand brake valve. This deconstruction will analyze the key serviceable assemblies of the Conduite de frein FAW J6P, including the air protection valve, the numerous pipe assemblies, and the various brackets and hoses. A leak-free and fully functional Conduite de frein FAW J6P system is the most critical safety feature of the vehicle.

Cœur 1: Le “Generation & Protection” Logique (The Air Source)

This group forms the heart of the Conduite de frein FAW J6P système. It is responsible for generating compressed air, treating it, and protecting the different brake circuits from one another.

1. Composant: ‘Air pipe assy – air compressor to air dryer’ (3506210-56UN & 3506215-Y494)
Ce (Comp 15 & 30) is the first stage of the Conduite de frein FAW J6P. This pipe carries hot, moist air from the engine-mounted air compressor to the air dryer (air processing unit). This line is often metal or reinforced for high temperatures.

2. Composant: ‘Four-circuit protection valve’ (3515014-8E) – Quantité 1
Ce (Comp 14) is arguably the most important safety device in the entire Conduite de frein FAW J6P. Le Circuit Protection Logic est critique: this valve receives clean, dry air from the air dryer and splits it into four protected circuits (Par exemple, front brakes, rear brakes, park brake, accessories). If one circuit fails (Par exemple, a hose bursts), this valve seals it off, ensuring the other three circuits remain pressurized and functional.

3. Composant: ‘Shaped seal gasket – four-circuit’ (3515013-93) – Quantité 2
Ce (Comp 17) is the specialized gasket that seals the four-circuit protection valve, ensuring no leaks occur at this central distribution point. A failure here would compromise the entire Conduite de frein FAW J6P système.

Cœur 2: Le “Service Line” Logique (Cadre & Axle Pipes)

This group represents the extensive network of pipes, tuyaux, and brackets that route compressed air from the protection valve (Cœur 1) to the individual wheel brakes. This is the main plumbing of the Conduite de frein FAW J6P.

1. Composant: ‘Front air pipe assy’ (3506205-60UN) & ‘Front brake hose assy’ (3506040-75UN)
Ce (Comp 5 & 18) is the circuit for the front axle. The ‘Front air pipe assy’ is the main rigid line, while the ‘Front brake hose’ is the flexible rubber hose that connects from the Cadre FAWJ6P to the moving axle, allowing for steering and suspension travel.

2. Composant: ‘Pipe assy’ (3506100-14BJ) & ‘Rear air pipe assy’ (3506215-Y494)
Ce (Comp 26 & 30) forms the main service line to the rear tandem axles. This is a long, complex pipe assembly that runs the length of the Cadre FAWJ6P.

3. Composant: ‘Pipe Bracket’ & ‘Pipe Clamp’ (Various)
Ce (Comp 6, 9, 10, 11, 22, 23, 25, 27, 28) is a large group of specialized brackets and clamps. Le Vibration Protection Logic is essential for a Conduite de frein FAW J6P. These brackets (Par exemple, ‘Left/Right pipe bracket’, ‘Air pipe support bracket’) secure the air lines to the frame and chassis, preventing them from chafing, vibrant, or being struck by debris. A single failed bracket can lead to a chafed line and a critical air leak.

Cœur 3: Le “Control” Logique (Vannes & Cab Interface)

This group of components controls the Conduite de frein FAW J6P système, translating driver inputs (foot pedal and hand valve) into pneumatic signals.

1. Composant: ‘Hand brake valve assy’ (3508010-704) – Quantité 1
Ce (Comp 19) is the driver-operated park brake valve in the cab. It controls the application and release of the powerful spring brakes on the rear axles. This is a primary control for the Conduite de frein FAW J6P.

2. Composant: ‘Cab pipe assy (Style drawing)’ (3506300-96U) – Quantité 1
Ce (Comp 20) is the bundle of air lines that runs from the chassis up to the cab. It carries supply air *to* the hand brake valve (Comp 19) and the foot valve (Comp 21), and carries the “signal” air *back down* to the brake system.

3. Composant: ‘Brake base plate & slack adjuster assy’ (3504020-76W) – Quantité 1
Ce (Comp 21) is the main foot valve assembly, mounted to the cab floor. When the driver presses the brake pedal, this valve opens and sends a proportional amount of air pressure through the Conduite de frein FAW J6P to all service brakes.

4. Composant: ‘Pneumatic valve module assy’ (3513010-Y494) – Quantité 1
Ce (Comp 29) is a complex module, likely a relay valve or ABS modulator. Le Relay Logic is that this valve receives a low-volume “signal” from the driver’s foot valve and opens to deliver a high-volume, high-pressure blast of air from a nearby reservoir directly to the rear brake chambers. This eliminates the “lag” that would occur if the air had to travel all the way from the cab, making the Conduite de frein FAW J6P responsive.

Conduite de frein FAW J6P: Complete 30-Part Breakdown

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 30 component groups in the Conduite de frein FAW J6P assemblage pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. Cette liste est indispensable pour tout service du Conduite de frein FAW J6P.

Spécifications de base

Les spécifications pour le Conduite de frein FAW J6P system are defined by its complex, multi-circuit pneumatic design, ensuring fail-safe operation. A leak-free Conduite de frein FAW J6P is the most critical safety system on the vehicle.