- Ciudad de ChangChun, Provincia de Jilin, Porcelana
por 
Welcome to this comprehensive technical deconstruction of the Conjunto de carcasa intermedia FAW (Número de pieza. 1701035-A2V), también conocido como el “mid-case.” This is the central, structural skeleton of the main gearbox for the FAW Jiefang CA4251P66K24T1A3E5 6×4 tractor semirremolque diésel.
El Conjunto de carcasa intermedia FAW is arguably the most critical and complex casing in the entire transmission. Its function is to hold the main shaft, eje secundario, and reverse idler shaft in perfect, parallel alignment, all while containing the transmission’s oil supply and supporting the shift-rail mechanism.
Esta guía detallada es un recurso esencial para técnicos profesionales de transmisiones y especialistas en repuestos.. We will analyze all 22 serviceable components of the Conjunto de carcasa intermedia FAW, including the main casing, its lubrication system (enchufes, filtros), the shift-fork bushings, and the critical reverse light switch.
The heart of this assembly is the ‘Mid-housing with steel wire sleeve set assy’ (1701035-A2V). This is the main body of the Conjunto de carcasa intermedia FAW. es un enorme, fundición mecanizada con precisión, typically made of aluminum to save weight and effectively dissipate heat from the gear oil. Este componente es el “esqueleto” that everything else bolts into.
Its most critical features are the internal, precision-bored “saddles” o “bores.” These are the holes that hold the main bearings for the input shaft, main shaft, and counter-shaft. These bores must be perfectly parallel to each other, as any misalignment would cause the gears to mesh improperly, conduciendo a una catástrofe “gimoteo” and rapid gear destruction.
The designation “with steel wire sleeve set assy” is a critical quality feature. It means that the high-stress threaded holes in the soft aluminum casting of the Conjunto de carcasa intermedia FAW have been reinforced with “Helicoils” (steel wire inserts). This is vital for the ‘Stud bolts’ (CQ1211640) and the many ‘Hex flange bolts’ (Q1841060S, Q1840820S) that hold the transmission together, preventing the threads from stripping during service and ensuring a high-torque, durable assembly. This is a core feature of a high-quality Conjunto de carcasa intermedia FAW.
El Conjunto de carcasa intermedia FAW is designed to hold several gallons of heavy-duty gear oil. This parts list details all the critical service points for this fluid.
**1. Oil Fill/Check:** El 'tapón de llenado de aceite’ (1701041-A2K) es el “llenar” puerto, located high on the side of the housing. The transmission is filled until oil begins to weep from this hole, which is how the correct oil level is set.
**2. Oil Drain:** The ‘Drain plug assy’ (1701765-A2K) es el “drenar” puerto, located at the lowest point. This plug is typically magnetic, designed to trap any fine metal particles from normal gear wear. Inspecting this plug during an oil change is a critical diagnostic step for the health of the Conjunto de carcasa intermedia FAW.
**3. Sellando:** Both plugs are sealed by the ‘Gasket-plug, drenar’ (1701042-A2K), de los cuales hay dos. Estos son “lavadoras de aplastamiento” and are single-use items that must be replaced to prevent leaks. The ‘Inner hex tapered screw plug’ (Q61901) is used to seal a manufacturing or diagnostic port on the Conjunto de carcasa intermedia FAW.
Un crítico, pero simple, componente de la Conjunto de carcasa intermedia FAW‘s lubrication system is the ‘Filter screen assembly’ (1701050-A2K). Este es el “pickup screen” for the transmission’s internal oil pump. It is located deep inside the housing, submerged in the oil sump.
Its function is to provide a “grueso” filtrar, blocking any large debris (P.EJ., chipped gear teeth, virutas de metal, or gasket fragments) from being sucked into the high-pressure oil pump. A failure of this screen would allow debris to circulate, destroying the oil pump and subsequently starving the entire gearbox of lubrication.
The ‘Gasket-filter screen assembly’ (1701056-A2K) is the seal for this component. Its integrity is vital, as a failed gasket would allow the pump to suck in unfiltered oil from *around* the screen, defeating its purpose. This is a vital part of the Conjunto de carcasa intermedia FAW‘s longevity.
El Conjunto de carcasa intermedia FAW provides the foundation for the internal shift components (detallado en Asamblea 153). This includes the ‘Bushing-reverse fork shaft’ (1701014-A9P) and the three ‘Bushing-shift fork shaft’ (1701013-A9P) unidades. These are the bronze “tener puesto” bushings that are pressed into the aluminum housing. The hardened steel shift rails slide through these bushings, allowing for smooth, low-friction shifting.
The ‘Dowel pin-sub housing’ (1701052-A2V) units are used to perfectly align the Conjunto de carcasa intermedia FAW to the rear “subcuadro” (auxiliar) alojamiento.
A key electronic component mounted to this Conjunto de carcasa intermedia FAW is the ‘Reverse light switch assembly’ (3729100-54W-C00). This is a spring-loaded “émbolo” cambiar. When the driver moves the shifter into the reverse gate, the reverse shift rail (supported by 1701014-A9P) pushes this plunger in, que completa un circuito eléctrico. This signal turns on the vehicle’s white reversing lights and the audible backup alarm, making it a critical safety component.
La siguiente tabla proporciona la información completa, desglose detallado de todos 22 components identified in the ‘Middle Housing Assembly’ diagrama para el tractor FAW CA4251P66K24T1A3E5. Este Conjunto de carcasa intermedia FAW is the core of the main gearbox.
| Marca | Número de pieza. | Nombre de la pieza | Cantidad |
|---|---|---|---|
| 1 | 1701711-A2K | Lifting eye | 1 |
| 2 | 1703166B41U | Bracket-support connecting rod | 1 |
| 3 | Q1841065S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 1 |
| 4 | 1701014-A9P | Eje de la bifurcación de buje-reverso | 1 |
| 5 | 1701013-A9P | Eje de bifurcación de buje | 3 |
| 6 | Q1841060S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 18 |
| 7 | 1701043-A9P | Cubrir – lower right idler | 1 |
| 8 | Q1840820S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 16 |
| 9 | 1701765-A2K | Drain plug assy | 1 |
| 10 | 1701050-A2K | Filter screen assembly | 1 |
| 11 | 1701056-A2K | Gasket-filter screen assembly | 1 |
| 12 | 1701041-A2K | Tapón de llenado de aceite | 1 |
| 13 | 1701042-A2K | Gasket-plug, drenar | 2 |
| 14 | 1701052-A2V | Dowel pin-sub housing | 2 |
| 15 | Q61901 | Tapón roscado cónico hexagonal interior | 1 |
| 16 | 1701043-A2V | Cubrir – upper left idler | 1 |
| 17 | CQ1211640 | Perno | 2 |
| 18 | Q40316 | junta de resorte | 2 |
| 19 | CQ34116 | Nuez hexagonal | 2 |
| 20 | 1702242-A9P | Post pin | 1 |
| 21 | 3729100-54W-C00 | Conjunto de interruptor de luz de marcha atrás | 1 |
| 22 | 1701035-A2V | Mid-housing with steel wire sleeve set assy | 1 |
Las especificaciones para el Conjunto de carcasa intermedia FAW are defined by its function as the structural, precision-machined “mid-case” de la transmision. todo el Conjunto de carcasa intermedia FAW is a key structural component.
| Solicitud de vehículo | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tractor |
| Grupo de componentes | Conjunto de carcasa intermedia FAW (Transmisión) |
| N/P de la carcasa principal | 1701035-A2V |
| Nombre común | Transmission Mid-Case / Vivienda principal |
| Material (Típico) | Cast Aluminum with Steel Wire Thread Inserts |
| Característica clave | Houses main/counter shafts and shift rail bushings. |
| Integrated System 1 | Internal Oil Filtration (1701050-A2K) |
| Oil Fill (1701041-A2K) and Drain (1701765-A2K) Ports | |
| Sensor electrónico | Reverse Light Switch (3729100-54W-C00) |
| Función primaria | To house, proteger, and lubricate all main gearbox components and ensure perfect shaft alignment. |
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.
