- Ciudad de ChangChun, Provincia de Jilin, Porcelana
por 
Bienvenidos a este análisis experto de la Conjunto de carcasa trasera FAW (Número de pieza. 1701505-A9P), el critico “caja auxiliar” o “range box” for the manual transmission in the FAW Jiefang CA4251P66K24T1A3E5 6×4 tractor semirremolque diésel.
Este Conjunto de carcasa trasera FAW is the foundation of the transmission’s “disidente” o “rango” sección. It bolts to the back of the main transmission case and contains the crucial gearset that provides the “alto” y “bajo” ranges, effectively doubling the number of available gears (P.EJ., turning a 6-speed into a 12-speed).
Esta guía detallada es un recurso esencial para técnicos profesionales de transmisiones y especialistas en repuestos.. Deconstruiremos todo Conjunto de carcasa trasera FAW en su 22 componentes reparables, incluyendo la vivienda principal, the output shaft bearings, the critical adjustment shims, and the speedometer drive system.
The foundation of this entire assembly is the ‘Rear housing with steel wire sleeve set assy’ (1701505-A9P). This is the main structural casing of the Conjunto de carcasa trasera FAW (caja auxiliar). es un enorme, fundición mecanizada con precisión, typically made of aluminum to save weight and dissipate heat.
Its function is to house the entire “rango” gearset, which includes the range synchronizer and the “alto” y “bajo” ratio gears. It must hold the auxiliary output shaft and auxiliary counter-shaft in perfect, parallel alignment under thousands of pound-feet of multiplied torque.
El “steel wire sleeve set” designation is a critical, high-quality feature. It means that the high-stress threaded holes in the aluminum Conjunto de carcasa trasera FAW are pre-fitted with “Helicoils” (steel wire thread inserts). This prevents technicians from stripping the soft aluminum threads when tightening the heavy-duty steel bolts, dramatically increasing the component’s service life and durability.
The most complex and “logical” parte del Conjunto de carcasa trasera FAW is its shimming system. The parts list details ten different ‘Adjustment gasket-sub box intermediate shaft’ componentes (Números de pieza. 1701526-A9P through 1701537-A9P). These are not standard gaskets; they are **selective shims**.
When a transmission is built, el “juego final” (the amount of fore-and-aft movement) of the counter-shaft is a critical, zero-tolerance specification. If the shaft is too “perder,” the helical gears will “gimoteo” and fail to mesh properly. If it is too “ajustado,” the bearings will overheat, aprovechar, and be destroyed.
la nota “(See 1701526-A9P)” indicates that these parts form a set. A technician assembles the Conjunto de carcasa trasera FAW, measures the end-play with a dial indicator, and then consults a service manual. The manual will instruct them to select *one specific shim* (P.EJ., 1701528-A9P) from this set. Each shim has a minutely different thickness.
Installing this one, correct shim sets the bearing “precarga” to the perfect factory specification. This shimming procedure is the single most important step in rebuilding a Conjunto de carcasa trasera FAW, as it ensures a quiet, confiable, and long-lasting gearbox.
El Conjunto de carcasa trasera FAW provides the final output to the vehicle’s driveshaft. This is supported by the ‘Rear bearing-sub box output shaft’ (1701586-A9P). This is a massive roller bearing that supports the final output shaft, which is subjected to the full, multiplied torque of the selected gear ratio.
This bearing is held in place by the ‘Rear bearing cap-sub box output shaft’ (1701521-A9P), which is a heavy-duty cap that bolts to the rear of the Conjunto de carcasa trasera FAW. This cap not only retains the bearing but also houses the main output shaft oil seal (no en la foto), which prevents all the gear oil from leaking out.
This sub-assembly also contains the ‘Speedometer driven shaft assembly’ (1701440-11) and its corresponding ‘Driven gear-speedometer’ (1701446-A9P). This is the mechanical “toma de fuerza” for the speedometer. A plastic gear on the output shaft spins this driven gear, which in turn spins a cable or electronic sensor (via the ‘Speedometer connector’ 1701447-A9P) to provide the vehicle speed to the dashboard. This is a critical data-reporting function of the Conjunto de carcasa trasera FAW.
El Conjunto de carcasa trasera FAW is designed for service. It includes an ‘Oil filler plug assembly’ (1701765-A2K) y su 'Junta’ (1701042-A2K) for filling the auxiliary box with its own separate oil supply. It also features a ‘Cover-sub box shifting oil hole’ (1701517-A9P) for accessing and servicing the range-shifter mechanism.
todo el Conjunto de carcasa trasera FAW is supported and held rigid by the ‘Tension rod flexible cushion assembly’ (1302050-01) and its associated ‘Cushion’ (1302052-01). Estos “estancia barras” connect the heavy transmission to the chassis crossmembers, preventing the entire powertrain from twisting under torque and allowing the ‘Tension bolt’ (1702129-1h) to maintain perfect alignment.
The assembly is held together with a massive number of high-tensile fasteners, incluyendo 'Pernos de brida hexagonal’ (Q1841035S, Q1841085S, Q1841035S) y 'Pernos de cabeza hexagonal’ (CQ1500512S). The ‘Spring gaskets’ (Q40308, Q40405) y 'Tuercas hexagonales’ (CQ34008) are critical for ensuring none of these fasteners vibrate loose, lo que sería catastrófico para el Conjunto de carcasa trasera FAW.
La siguiente tabla proporciona la información completa, desglose detallado de todos 22 components identified in the ‘Rear Housing Assembly’ (Sub-Box) diagrama para el tractor FAW CA4251P66K24T1A3E5. Una reconstrucción del Conjunto de carcasa trasera FAW requires careful selection of the correct adjustment gaskets.
| Marca | Número de pieza. | Nombre de la pieza | Cantidad |
|---|---|---|---|
| 1 | 1701505-A9P | Rear housing with steel wire sleeve set assy | 1 |
| 2 | 1701042-A2K | Gasket-plug, drenar | 1 |
| 3 | 1701765-A2K | Oil filler plug assembly | 1 |
| 4 | 1701524-A9P | Empaquetadora | 2 |
| 5 | 1701526-A9P | Adjustment gasket-sub box intermediate shaft | 1 |
| 7 | 1701527-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 6 |
| 8 | 1701528-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 8 |
| 9 | 1701529-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 1 |
| 10 | 1701531-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 1 |
| 11 | 1701532-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 1 |
| 12 | 1701533-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 1 |
| 13 | 1701534-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 1 |
| 14 | 1701536-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 1 |
| 15 | 1701537-A9P | Adjustment gasket-sub box intermediate shaft (See 1701526-A9P) | 1 |
| 16 | Q1841035S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 5 |
| 17 | 1701586-A9P | Rear bearing-sub box output shaft | 1 |
| 18 | 1701605-A7G | Rear housing-sub box output shaft (según muestra) | 1 |
| 19 | Q1841085S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 6 |
| 20 | 1702129-1h | Tension bolt | 1 |
| 21 | Q40308 | junta de resorte | 1 |
| 22 | 1701521-A9P | Rear bearing cap-sub box intermediate shaft | 1 |
| 23 | Q1841035S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 5 |
| 24 | 1701586-A9P | Rear bearing-sub box output shaft | 1 |
| 25 | 1701446-A9P | Driven gear-speedometer | 1 |
| 26 | CQ7343236B | Sello de goma con junta tórica neumática hidráulica | 1 |
| 27 | 1701440-11 | Speedometer driven shaft assembly | 1 |
| 28 | 1701447-A9P | Speedometer connector | 1 |
| 29 | 1701517-A9P | Cover-sub box shifting oil hole | 2 |
| 30 | CQ1500512S | Perno de cabeza hexagonal | 4 |
| 31 | Q40405 | Light-duty spring gasket | 4 |
Las especificaciones para el Conjunto de carcasa trasera FAW are defined by its function as the structural, precision-machined “subcuadro” o “range box”. todo el Conjunto de carcasa trasera FAW is a zero-tolerance component.
| Solicitud de vehículo | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tractor |
| Grupo de componentes | Conjunto de carcasa trasera FAW (Caja Auxiliar) |
| N/P de la carcasa principal | 1701505-A9P |
| Material (Típico) | Cast Aluminum with Steel Wire Thread Inserts |
| Función | Houses the “Rango” (Alto/Bajo) gearset |
| Lógica crítica | Selective Shimming System (10x Adjustment Gaskets) |
| Output Shaft Support | Rear Bearing Cap (1701521-A9P) |
| Unidad de velocímetro | Engranaje impulsado (1701446-A9P) & Eje (1701440-11) |
| Service Points | Enchufe de llenado de aceite (1701765-A2K), Inspection Cover (1701517-A9P) |
| Sistema de soporte | Varillas de tensión (1302050-01) & Cushions (1302052-01) |
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.
