- Ciudad de ChangChun, Provincia de Jilin, Porcelana
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Bienvenido a esta completa guía técnica sobre el Válvulas FAW, Conjuntos de mangueras y accesorios, the complete pneumatic control “lógica” sistema para el FAW Jiefang CA4251P66K24T1A3E5 6×4 tractor semirremolque diésel. This system is the “sesos” that controls the “músculo” of the transmission’s range shifter.
El Válvulas FAW, Conjuntos de mangueras y accesorios are a critical, chassis-mounted system. It is responsible for taking the driver’s electronic “high/low range” command, passing it through a set of electro-pneumatic valves, and then routing high-pressure air through a specific set of hoses to the transmission’s sub-box shift cylinder.
This in-depth guide is an essential resource for professional technicians and parts specialists. Deconstruiremos todo Válvulas FAW, Conjuntos de mangueras y accesorios sistema en su 24 componentes reparables, including the main control valves, the air filter, the high/low gear hoses, and all the brackets and fittings.
El “lógica” del Válvulas FAW, Conjuntos de mangueras y accesorios resides in its main control valves. The parts list identifies a ‘Pneumatic directional valve’ (1702355AA9P) and a ‘Control valve assembly’ (1702255AA9P). These are the electro-pneumatic “logic gates” del sistema.
These valves are effectively electronic solenoids. When the driver flips the range selector switch (from Low to High), a low-voltage electrical signal is sent to these valves. This signal energizes an electromagnet, which pulls a “spool” o “poppet” valve open. esta acción, Sucesivamente, releases high-pressure (100+ PSI) air from the truck’s main air system and directs it into a specific port.
Este es el “lógica”: a small electrical signal from the driver is used to control a large, powerful pneumatic force. These valves are the heart of the Válvulas FAW, Conjuntos de mangueras y accesorios. They are sealed to their mounting bracket by the ‘Gasket-control valve’ (1702281AA9P), which is a critical seal. A leak here will cause the system to lose air pressure and fail to shift. A failure in the electronic solenoid will also render the Válvulas FAW, Conjuntos de mangueras y accesorios inoperable.
Once the control valves have directed the air, el “Manguera” componente de la Válvulas FAW, Conjuntos de mangueras y accesorios takes over. The parts list specifically calls out an ‘Intake hose-low gear’ (1702431AA9P) and an ‘Intake hose-high gear’ (1702441AA9P).
These two hoses are the primary “actuación” pauta. El “marcha baja” hose connects to the “empujar” side of the transmission’s shift cylinder, y el “marcha alta” hose connects to the “jalar” lado (o viceversa). When the control valve sends air down the ‘Intake hose-high gear’, it pressurizes the cylinder, physically moving the shift fork and engaging the high-range synchronizer.
These are part of a larger network of ‘Intake hoses’ (1702451AA9P, 1702421AA9P, 1702411AA9P) and ‘Elbow joints’ / ‘Pipe joints’ (1702245AA9P, 1702365AA9P, 1702265AA9P, 1702235AA9P, 1702295AA9P). This entire pneumatic “tubería” system is the muscle of the Válvulas FAW, Conjuntos de mangueras y accesorios.
A crack, split, or loose fitting in any of these high-pressure hoses is a critical failure. It will create a high-pressure air leak, which not only prevents the transmission from shifting ranges but also puts a constant, parasitic drain on the truck’s main air brake system, which is a major safety hazard. The integrity of every component in the Válvulas FAW, Conjuntos de mangueras y accesorios is vital.
The pneumatic valves in the Válvulas FAW, Conjuntos de mangueras y accesorios are high-precision components with very tight tolerances. They cannot be fed the “raw” air from the main tanks, which often contains small amounts of rust, humedad, and compressor oil.
The ‘Air filter & joint assembly’ (1702380-A7G) es el “pulmón” del sistema. This is a final, in-line “polishing” filtrar. It is placed just before the control valves to trap any fine debris or moisture, protecting the solenoids from sticking or failing. This small filter is a key part of the Válvulas FAW, Conjuntos de mangueras y accesorios‘ long-term reliability.
En cambio, the two ‘Breather plug assembly’ (1702165-A8L) units are the “escape” ports. When the driver shifts from “Alto” a “Low,” the high-pressure air in the “Alto” hose must be vented *out* to allow the piston to move. These breathers allow the air to escape quickly and silently, while their internal filters prevent dirt and water from being ingested back into the clean side of the Válvulas FAW, Conjuntos de mangueras y accesorios.
El “Fittings” portion of the Válvulas FAW, Conjuntos de mangueras y accesorios refers to the complete mounting system. The ‘Welded bracket assembly’ (1702385AA9P) is the main structural foundation. It is a heavy-gauge steel bracket that bolts to the transmission housing or chassis. This bracket provides a rigid, secure platform to mount the control valves and filters.
This bracket, and all its associated plumbing, is secured with high-tensile fasteners designed to resist vibration. This includes ‘Hex flange bolts’ (Q1841020, Q1840660S), ‘Hex head bolts’ (CQ1500435), ‘Inner hex socket head cap screws’ (Q02180620), and ‘Light spring gaskets’ (Q40404, Q40406).
Finalmente, the hoses are secured with ‘Worm Drive Hose Clamps’ (CQ67622B, CQ67640B) and ‘Hose clamps’ (1702391-A7G). These are critical for creating an air-tight seal at all “push-on” hose connections. A single loose clamp will cause the entire Válvulas FAW, Conjuntos de mangueras y accesorios to fail. This robust hardware is what makes the Válvulas FAW, Conjuntos de mangueras y accesorios a durable, truck-grade system.
La siguiente tabla proporciona la información completa, desglose detallado de todos 24 components for the Válvulas FAW, Conjuntos de mangueras y accesorios.
| Marca | Número de pieza. | Nombre de la pieza | Cantidad |
|---|---|---|---|
| 1 | 1702385AA9P | Welded bracket assembly | 1 |
| 2 | Q1841020 | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 2 |
| 3 | 1702245AA9P | articulación del codo | 1 |
| 4 | 1702355AA9P | Pneumatic directional valve | 1 |
| 5 | Q40404 | Light spring gasket | 1 |
| 6 | CQ1500435 | Perno de cabeza hexagonal | 1 |
| 7 | 1702365AA9P | articulación del codo | 1 |
| 8 | 1702431AA9P | Manguera de admisión – marcha baja | 1 |
| 9 | 1702441AA9P | Manguera de admisión – marcha alta | 1 |
| 10 | Q1840660S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 2 |
| 11 | 1702380-A7G | Filtro de aire & joint assembly (según muestra) | 1 |
| 12 | 1702391-A7G | Manguera | 1 |
| 13 | Q40406 | Light spring gasket | 2 |
| 14 | Q02180620 | Inner hex socket head cap screw | 2 |
| 15 | 1702295AA9P | U-shaped joint assembly | 1 |
| 16 | 1702451AA9P | Manguera de admisión | 1 |
| 17 | 1702275AA9P | Three-way pipe (T-joint) | 1 |
| 18 | 1702255AA9P | Control valve assembly | 1 |
| 19 | 1702281AA9P | Empaquetadora – control valve | 1 |
| 20 | 1702235AA9P | Straight pipe joint | 1 |
| 21 | 1702421AA9P | Manguera de admisión | 1 |
| 22 | 1702165-A8L | Breather plug assembly | 2 |
| 23 | 1702411AA9P | Manguera de admisión | 1 |
| 24 | 1702265AA9P | articulación del codo | 1 |
Las especificaciones para el Válvulas FAW, Conjuntos de mangueras y accesorios are defined by its function as the pneumatic control system for the transmission’s range shifter. El Válvulas FAW, Conjuntos de mangueras y accesorios system is a critical logic controller.
| Solicitud de vehículo | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tractor |
| Grupo de componentes | Válvulas FAW, Conjuntos de mangueras y accesorios |
| Tipo de sistema | Neumático (Compressed Air) Sistema lógico |
| Control Logic | Electro-Pneumatic (Solenoid Controlled) |
| Main Control Valves | ‘Pneumatic directional valve’ (1702355AA9P), ‘Control valve assembly’ (1702255AA9P) |
| Actuation Hoses | ‘Intake hose-low gear’ (1702431AA9P), ‘Intake hose-high gear’ (1702441AA9P) |
| Air Treatment | 'Filtro de aire & joint assembly’ (1702380-A7G) |
| Sistema de ventilación | 2x ‘Breather plug assembly’ (1702165-A8L) |
| Sistema de montaje | ‘Welded bracket assembly’ (1702385AA9P) | Rows
| Función primaria | To translate the driver’s electronic range-shift command into a pneumatic force that actuates the sub-box shift cylinder. |
piezas FAW, incluido el conjunto del bloque de cilindros, Se empaquetan con cuidado para garantizar una entrega segura.. Cada componente está asegurado con materiales protectores para evitar daños durante el transporte.. La red logística garantiza envíos puntuales en todo el mundo., apoyando operaciones de mantenimiento eficientes. A continuación se muestra una imagen que ilustra el embalaje estándar de las piezas de camiones FAW., mostrando la atención al detalle en el manejo y almacenamiento.
Este enfoque de embalaje minimiza el riesgo de corrosión o daños por impacto., asegurando que piezas como el conjunto de bloque de cilindros FAW lleguen en perfectas condiciones. Los clientes pueden confiar en la logística de FAW para obtener calidad y confiabilidad constantes.
FAW es uno de los fabricantes de automóviles más grandes y antiguos de China, con capital registrado de RMB 35.4 mil millones de yuanes y activos totales de RMB 457.83 mil millones de yuanes.
CHINA FAW GROUP CO., LIMITADO. (abreviatura de FAW), anteriormente China First Automobile Works, puede rastrear sus raíces hasta julio 15, 1953, cuando comenzó a construirse su primera planta de ensamblaje. FAW es uno de los fabricantes de automóviles más grandes y antiguos de China, con capital registrado de RMB 35.4 mil millones de yuanes y activos totales de RMB 457.83 mil millones de yuanes.
Ventas globales de camiones pesados en China “cinco seguidos”, ventas de camiones pesados a nivel mundial “seis seguidos”, venta de tractores para 16 años consecutivos líder absoluto en la industria.
